Removed STC as it has been moved to a separate repository.

Change-Id: I419079b4ce539e5c082dd3f9dcf2bf8a91e2e45a

@@ -37,7 +37,6 @@
         <module>yangutils</module>
         <module>yangutils</module>
         <module>osgi</module>
         <module>osgi</module>
         <module>rest</module>
         <module>rest</module>
-        <module>stc</module>
         <module>jdvue</module>
         <module>jdvue</module>
         <module>osgiwrap</module>
         <module>osgiwrap</module>
     </modules>
     </modules>

-#!/bin/bash
-#-------------------------------------------------------------------------------
-#   System Test Coordinator
-#-------------------------------------------------------------------------------
-
-STC_ROOT=${STC_ROOT:-$(dirname $0)/..}
-cd $STC_ROOT
-VER=1.6.0-SNAPSHOT
-
-PATH=$PWD/bin:$PATH
-
-java -jar target/onlab-stc-$VER.jar "$@"

-#!/bin/bash
-#-------------------------------------------------------------------------------
-#   System Test Coordinator process launcher
-#-------------------------------------------------------------------------------
-
-env=$1 && shift
-cwd=$1 && shift
-
-if [ $env != "-" ]; then
-    [ ! -f $env ] && echo "$env file not found" && exit 1
-    source $env
-fi
-
-if [ $cwd != "-" ]; then
-    [ ! -d $cwd ] && echo "$cwd directory not found" && exit 1
-    cd $cwd
-fi
-
-"$@" 2>&1

-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <parent>
-        <groupId>org.onosproject</groupId>
-        <artifactId>onlab-utils</artifactId>
-        <version>1.6.0-SNAPSHOT</version>
-    </parent>
-
-    <artifactId>onlab-stc</artifactId>
-    <packaging>jar</packaging>
-
-    <description>System Test Coordinator</description>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.onosproject</groupId>
-            <artifactId>onlab-misc</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.onosproject</groupId>
-            <artifactId>onlab-junit</artifactId>
-            <scope>test</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>commons-configuration</groupId>
-            <artifactId>commons-configuration</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>commons-collections</groupId>
-            <artifactId>commons-collections</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.7.3</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-annotations</artifactId>
-            <version>2.7.3</version>
-            <scope>compile</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>org.eclipse.jetty</groupId>
-            <artifactId>jetty-server</artifactId>
-            <version>8.1.19.v20160209</version>
-        </dependency>
-        <dependency>
-            <groupId>org.eclipse.jetty</groupId>
-            <artifactId>jetty-servlet</artifactId>
-            <version>8.1.19.v20160209</version>
-        </dependency>
-        <dependency>
-            <groupId>org.eclipse.jetty</groupId>
-            <artifactId>jetty-websocket</artifactId>
-            <version>8.1.19.v20160209</version>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>2.4.2</version>
-                <configuration>
-                    <transformers>
-                        <transformer
-                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                            <mainClass>org.onlab.stc.Main
-                            </mainClass>
-                        </transformer>
-                    </transformers>
-                    <filters>
-                        <filter>
-                            <artifact>*:*</artifact>
-                            <excludes>
-                                <exclude>META-INF/*.SF</exclude>
-                                <exclude>META-INF/*.DSA</exclude>
-                                <exclude>META-INF/*.RSA</exclude>
-                            </excludes>
-                        </filter>
-                    </filters>
-                </configuration>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-</project>

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="sample" description="Sample Test Scenario">
-    <step name="alpha" exec="/bin/ls -l"/>
-    <step name="beta" exec="/bin/ls -lF"/>
-    <step name="gamma" exec="/bin/ls" requires="alpha,beta"/>
-</scenario>
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.base.MoreObjects;
-import org.onlab.graph.AbstractEdge;
-
-import java.util.Objects;
-
-/**
- * Representation of a dependency from one step on completion of another.
- */
-public class Dependency extends AbstractEdge<Step> {
-
-    private boolean isSoft;
-
-    /**
-     * Creates a new edge between the specified source and destination vertexes.
-     *
-     * @param src    source vertex
-     * @param dst    destination vertex
-     * @param isSoft indicates whether this is a hard or soft dependency
-     */
-    public Dependency(Step src, Step dst, boolean isSoft) {
-        super(src, dst);
-        this.isSoft = isSoft;
-    }
-
-    /**
-     * Indicates whether this is a soft or hard dependency, i.e. one that
-     * requires successful completion of the dependency or just any completion.
-     *
-     * @return true if dependency is a soft one
-     */
-    public boolean isSoft() {
-        return isSoft;
-    }
-
-    @Override
-    public int hashCode() {
-        return 31 * super.hashCode() + Objects.hash(isSoft);
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (obj instanceof Dependency) {
-            final Dependency other = (Dependency) obj;
-            return super.equals(other) && Objects.equals(this.isSoft, other.isSoft);
-        }
-        return false;
-    }
-
-    @Override
-    public String toString() {
-        return MoreObjects.toStringHelper(this)
-                .add("name", src().name())
-                .add("requires", dst().name())
-                .add("isSoft", isSoft)
-                .toString();
-    }
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Sets;
-
-import java.util.Set;
-
-/**
- * Represenation of a related group of steps.
- */
-public class Group extends Step {
-
-    private final Set<Step> children = Sets.newHashSet();
-
-    /**
-     * Creates a new test step.
-     *
-     * @param name    group name
-     * @param command default command
-     * @param env     default path to file to be sourced into the environment
-     * @param cwd     default path to current working directory for the step
-     * @param group   optional group to which this step belongs
-     * @param delay   seconds to delay before executing
-     */
-    public Group(String name, String command, String env, String cwd, Group group, int delay) {
-        super(name, command, env, cwd, group, delay);
-    }
-
-    /**
-     * Returns the set of child steps and groups contained within this group.
-     *
-     * @return set of children
-     */
-    public Set<Step> children() {
-        return ImmutableSet.copyOf(children);
-    }
-
-    /**
-     * Adds the specified step or group as a child of this group.
-     *
-     * @param child child step or group to add
-     */
-    public void addChild(Step child) {
-        children.add(child);
-    }
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ArrayNode;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-import com.google.common.collect.Maps;
-import org.onlab.stc.MonitorLayout.Box;
-
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.util.Map;
-
-import static org.onlab.stc.Coordinator.Status.IN_PROGRESS;
-
-/**
- * Scenario test monitor.
- */
-public class Monitor implements StepProcessListener {
-
-    private final ObjectMapper mapper = new ObjectMapper();
-
-    private final Coordinator coordinator;
-    private final Compiler compiler;
-    private final MonitorLayout layout;
-
-    private MonitorDelegate delegate;
-
-    private Map<Step, Box> boxes = Maps.newHashMap();
-
-    /**
-     * Creates a new shared process flow monitor.
-     *
-     * @param coordinator process flow coordinator
-     * @param compiler    scenario compiler
-     */
-    Monitor(Coordinator coordinator, Compiler compiler) {
-        this.coordinator = coordinator;
-        this.compiler = compiler;
-        this.layout = new MonitorLayout(compiler);
-        coordinator.addListener(this);
-    }
-
-    /**
-     * Sets the process monitor delegate.
-     *
-     * @param delegate process monitor delegate
-     */
-    void setDelegate(MonitorDelegate delegate) {
-        this.delegate = delegate;
-    }
-
-    /**
-     * Notifies the process monitor delegate with the specified event.
-     *
-     * @param event JSON event data
-     */
-    public void notify(ObjectNode event) {
-        if (delegate != null) {
-            delegate.notify(event);
-        }
-    }
-
-    /**
-     * Returns the scenario process flow as JSON data.
-     *
-     * @return scenario process flow data
-     */
-    ObjectNode scenarioData() {
-        ObjectNode root = mapper.createObjectNode();
-        ArrayNode steps = mapper.createArrayNode();
-        ArrayNode requirements = mapper.createArrayNode();
-
-        ProcessFlow pf = compiler.processFlow();
-        pf.getVertexes().forEach(step -> add(step, steps));
-        pf.getEdges().forEach(requirement -> add(requirement, requirements));
-
-        root.set("steps", steps);
-        root.set("requirements", requirements);
-
-        try (FileWriter fw = new FileWriter("/tmp/data.json");
-             PrintWriter pw = new PrintWriter(fw)) {
-            pw.println(root.toString());
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return root;
-    }
-
-
-    private void add(Step step, ArrayNode steps) {
-        Box box = layout.get(step);
-        ObjectNode sn = mapper.createObjectNode()
-                .put("name", step.name())
-                .put("isGroup", step instanceof Group)
-                .put("status", status(coordinator.getStatus(step)))
-                .put("tier", box.tier())
-                .put("depth", box.depth());
-        if (step.group() != null) {
-            sn.put("group", step.group().name());
-        }
-        steps.add(sn);
-    }
-
-    private String status(Coordinator.Status status) {
-        return status.toString().toLowerCase();
-    }
-
-    private void add(Dependency requirement, ArrayNode requirements) {
-        ObjectNode rn = mapper.createObjectNode();
-        rn.put("src", requirement.src().name())
-                .put("dst", requirement.dst().name())
-                .put("isSoft", requirement.isSoft());
-        requirements.add(rn);
-    }
-
-    @Override
-    public void onStart(Step step, String command) {
-        notify(event(step, status(IN_PROGRESS)));
-    }
-
-    @Override
-    public void onCompletion(Step step, Coordinator.Status status) {
-        notify(event(step, status(status)));
-    }
-
-    @Override
-    public void onOutput(Step step, String line) {
-
-    }
-
-    private ObjectNode event(Step step, String status) {
-        ObjectNode event = mapper.createObjectNode()
-                .put("name", step.name())
-                .put("status", status);
-        return event;
-    }
-
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.fasterxml.jackson.databind.node.ObjectNode;
-
-/**
- * Delegate to which monitor can send notifications.
- */
-public interface MonitorDelegate {
-
-    /**
-     * Issues JSON event to be sent to any connected monitor clients.
-     *
-     * @param event JSON event data
-     */
-    void notify(ObjectNode event);
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.eclipse.jetty.websocket.WebSocket;
-
-import java.io.IOException;
-
-import static org.onlab.stc.Coordinator.print;
-
-/**
- * Web socket capable of interacting with the STC monitor GUI.
- */
-public class MonitorWebSocket implements WebSocket.OnTextMessage, WebSocket.OnControl {
-
-    private static final long MAX_AGE_MS = 30_000;
-
-    private static final byte PING = 0x9;
-    private static final byte PONG = 0xA;
-    private static final byte[] PING_DATA = new byte[]{(byte) 0xde, (byte) 0xad};
-
-    private final Monitor monitor;
-
-    private Connection connection;
-    private FrameConnection control;
-
-    private final ObjectMapper mapper = new ObjectMapper();
-
-    private long lastActive = System.currentTimeMillis();
-
-    /**
-     * Creates a new monitor client GUI web-socket.
-     *
-     * @param monitor shared process flow monitor
-     */
-    MonitorWebSocket(Monitor monitor) {
-        this.monitor = monitor;
-    }
-
-    /**
-     * Issues a close on the connection.
-     */
-    synchronized void close() {
-        destroyHandlers();
-        if (connection.isOpen()) {
-            connection.close();
-        }
-    }
-
-    /**
-     * Indicates if this connection is idle.
-     *
-     * @return true if idle or closed
-     */
-    synchronized boolean isIdle() {
-        long quietFor = System.currentTimeMillis() - lastActive;
-        boolean idle = quietFor > MAX_AGE_MS;
-        if (idle || (connection != null && !connection.isOpen())) {
-            return true;
-        } else if (connection != null) {
-            try {
-                control.sendControl(PING, PING_DATA, 0, PING_DATA.length);
-            } catch (IOException e) {
-                print("Unable to send ping message due to: %s", e);
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public void onOpen(Connection connection) {
-        this.connection = connection;
-        this.control = (FrameConnection) connection;
-        try {
-            createHandlers();
-            sendMessage(message("flow", monitor.scenarioData()));
-
-        } catch (Exception e) {
-            print("Unable to open monitor connection: %s", e);
-            this.connection.close();
-            this.connection = null;
-            this.control = null;
-        }
-    }
-
-    @Override
-    public synchronized void onClose(int closeCode, String message) {
-        destroyHandlers();
-    }
-
-    @Override
-    public boolean onControl(byte controlCode, byte[] data, int offset, int length) {
-        lastActive = System.currentTimeMillis();
-        return true;
-    }
-
-    @Override
-    public void onMessage(String data) {
-        lastActive = System.currentTimeMillis();
-        try {
-            ObjectNode message = (ObjectNode) mapper.reader().readTree(data);
-            // TODO:
-            print("Got message: %s", message);
-        } catch (Exception e) {
-            print("Unable to parse GUI message %s due to %s", data, e);
-        }
-    }
-
-    public synchronized void sendMessage(ObjectNode message) {
-        try {
-            if (connection.isOpen()) {
-                connection.sendMessage(message.toString());
-            }
-        } catch (IOException e) {
-            print("Unable to send message %s to GUI due to %s", message, e);
-        }
-    }
-
-    public ObjectNode message(String type, ObjectNode payload) {
-        ObjectNode message = mapper.createObjectNode().put("event", type);
-        message.set("payload", payload);
-        return message;
-    }
-
-    // Creates new message handlers.
-    private synchronized void createHandlers() {
-    }
-
-    // Destroys message handlers.
-    private synchronized void destroyHandlers() {
-    }
-
-}
-

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.fasterxml.jackson.databind.node.ObjectNode;
-import com.google.common.io.ByteStreams;
-import com.google.common.net.MediaType;
-import org.eclipse.jetty.websocket.WebSocket;
-import org.eclipse.jetty.websocket.WebSocketServlet;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Set;
-import java.util.Timer;
-import java.util.TimerTask;
-
-/**
- * Web socket servlet capable of creating web sockets for the STC monitor.
- */
-public class MonitorWebSocketServlet extends WebSocketServlet
-        implements MonitorDelegate {
-
-    private static final long PING_DELAY_MS = 5000;
-    private static final String DOT = ".";
-
-    private static Monitor monitor;
-    private static MonitorWebSocketServlet instance;
-
-    private final Set<MonitorWebSocket> sockets = new HashSet<>();
-    private final Timer timer = new Timer();
-    private final TimerTask pruner = new Pruner();
-
-    /**
-     * Binds the shared process flow monitor.
-     *
-     * @param m process monitor reference
-     */
-    public static void setMonitor(Monitor m) {
-        monitor = m;
-    }
-
-    /**
-     * Closes all currently open monitor web-sockets.
-     */
-    public static void closeAll() {
-        if (instance != null) {
-            instance.sockets.forEach(MonitorWebSocket::close);
-            instance.sockets.clear();
-        }
-    }
-
-    @Override
-    public void init() throws ServletException {
-        super.init();
-        instance = this;
-        monitor.setDelegate(this);
-        timer.schedule(pruner, PING_DELAY_MS, PING_DELAY_MS);
-    }
-
-    @Override
-    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
-            throws ServletException, IOException {
-        String uri = req.getRequestURI();
-        uri = uri.length() <= 1 ? "/index.html" : uri;
-        InputStream resource = getClass().getResourceAsStream(uri);
-        if (resource == null) {
-            resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
-        } else {
-            byte[] entity = ByteStreams.toByteArray(resource);
-            resp.setStatus(HttpServletResponse.SC_OK);
-            resp.setContentType(contentType(uri).toString());
-            resp.setContentLength(entity.length);
-            resp.getOutputStream().write(entity);
-        }
-    }
-
-    private MediaType contentType(String uri) {
-        int sep = uri.lastIndexOf(DOT);
-        String ext = sep > 0 ? uri.substring(sep + 1) : null;
-        return ext == null ? MediaType.APPLICATION_BINARY :
-                ext.equals("html") ? MediaType.HTML_UTF_8 :
-                        ext.equals("js") ? MediaType.JAVASCRIPT_UTF_8 :
-                                ext.equals("css") ? MediaType.CSS_UTF_8 :
-                                        MediaType.APPLICATION_BINARY;
-    }
-
-    @Override
-    public WebSocket doWebSocketConnect(HttpServletRequest request, String protocol) {
-        MonitorWebSocket socket = new MonitorWebSocket(monitor);
-        synchronized (sockets) {
-            sockets.add(socket);
-        }
-        return socket;
-    }
-
-    @Override
-    public void notify(ObjectNode event) {
-        if (instance != null) {
-            instance.sockets.forEach(ws -> ws.sendMessage(event));
-        }
-    }
-
-    // Task for pruning web-sockets that are idle.
-    private class Pruner extends TimerTask {
-        @Override
-        public void run() {
-            synchronized (sockets) {
-                Iterator<MonitorWebSocket> it = sockets.iterator();
-                while (it.hasNext()) {
-                    MonitorWebSocket socket = it.next();
-                    if (socket.isIdle()) {
-                        it.remove();
-                        socket.close();
-                    }
-                }
-            }
-        }
-    }
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.onlab.graph.MutableAdjacencyListsGraph;
-
-import java.util.Set;
-
-/**
- * Graph representation of a test process flow.
- */
-public class ProcessFlow extends MutableAdjacencyListsGraph<Step, Dependency> {
-
-    /**
-     * Creates a graph comprising of the specified vertexes and edges.
-     *
-     * @param vertexes set of graph vertexes
-     * @param edges    set of graph edges
-     */
-    public ProcessFlow(Set<Step> vertexes, Set<Dependency> edges) {
-        super(vertexes, edges);
-    }
-
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.apache.commons.configuration.ConfigurationException;
-import org.apache.commons.configuration.HierarchicalConfiguration;
-import org.apache.commons.configuration.XMLConfiguration;
-
-import java.io.InputStream;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-import static com.google.common.base.Preconditions.checkState;
-
-/**
- * Representation of a re-usable test scenario.
- */
-public final class Scenario {
-
-    private static final String SCENARIO = "scenario";
-    private static final String NAME = "[@name]";
-    private static final String DESCRIPTION = "[@description]";
-
-    private final String name;
-    private final String description;
-    private final HierarchicalConfiguration definition;
-
-    // Creates a new scenario from the specified definition.
-    private Scenario(String name, String description, HierarchicalConfiguration definition) {
-        this.name = checkNotNull(name, "Name cannot be null");
-        this.description = checkNotNull(description, "Description cannot be null");
-        this.definition = checkNotNull(definition, "Definition cannot be null");
-    }
-
-    /**
-     * Loads a new scenario from the specified hierarchical configuration.
-     *
-     * @param definition scenario definition
-     * @return loaded scenario
-     */
-    public static Scenario loadScenario(HierarchicalConfiguration definition) {
-        String name = definition.getString(NAME);
-        String description = definition.getString(DESCRIPTION, "");
-        checkState(name != null, "Scenario name must be specified");
-        return new Scenario(name, description, definition);
-    }
-
-    /**
-     * Loads a new scenario from the specified input stream.
-     *
-     * @param stream scenario definition stream
-     * @return loaded scenario
-     */
-    public static Scenario loadScenario(InputStream stream) {
-        XMLConfiguration cfg = new XMLConfiguration();
-        cfg.setAttributeSplittingDisabled(true);
-        cfg.setDelimiterParsingDisabled(true);
-        cfg.setRootElementName(SCENARIO);
-        try {
-            cfg.load(stream);
-            return loadScenario(cfg);
-        } catch (ConfigurationException e) {
-            throw new IllegalArgumentException("Unable to load scenario from the stream", e);
-        }
-    }
-
-    /**
-     * Returns the scenario name.
-     *
-     * @return scenario name
-     */
-    public String name() {
-        return name;
-    }
-
-    /**
-     * Returns the scenario description.
-     *
-     * @return scenario description
-     */
-    public String description() {
-        return description;
-    }
-
-    /**
-     * Returns the scenario definition.
-     *
-     * @return scenario definition
-     */
-    public HierarchicalConfiguration definition() {
-        return definition;
-    }
-
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Maps;
-import org.apache.commons.configuration.ConfigurationException;
-import org.apache.commons.configuration.PropertiesConfiguration;
-import org.onlab.stc.Coordinator.Status;
-
-import java.io.File;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.onlab.stc.Coordinator.Status.*;
-import static org.onlab.stc.Coordinator.print;
-
-/**
- * Maintains state of scenario execution.
- */
-class ScenarioStore {
-
-    private final ProcessFlow processFlow;
-    private final File storeFile;
-    private final File logDir;
-
-    private final List<StepEvent> events = Lists.newArrayList();
-    private final Map<String, Status> statusMap = Maps.newConcurrentMap();
-
-    private long startTime = Long.MAX_VALUE;
-    private long endTime = Long.MIN_VALUE;
-
-    /**
-     * Creates a new scenario store for the specified process flow.
-     *
-     * @param processFlow scenario process flow
-     * @param logDir      scenario log directory
-     * @param name        scenario name
-     */
-    ScenarioStore(ProcessFlow processFlow, File logDir, String name) {
-        this.processFlow = processFlow;
-        this.logDir = logDir;
-        this.storeFile = new File(logDir, name + ".stc");
-        load();
-    }
-
-    /**
-     * Resets status of all steps to waiting and clears all events.
-     */
-    void reset() {
-        events.clear();
-        statusMap.clear();
-        processFlow.getVertexes().forEach(step -> statusMap.put(step.name(), WAITING));
-        try {
-            removeLogs();
-            PropertiesConfiguration cfg = new PropertiesConfiguration(storeFile);
-            cfg.clear();
-            cfg.save();
-            startTime = Long.MAX_VALUE;
-            endTime = Long.MIN_VALUE;
-        } catch (ConfigurationException e) {
-            print("Unable to store file %s", storeFile);
-        }
-
-    }
-
-    /**
-     * Returns set of all test steps.
-     *
-     * @return set of steps
-     */
-    Set<Step> getSteps() {
-        return processFlow.getVertexes();
-    }
-
-    /**
-     * Returns a chronological list of step or group records.
-     *
-     * @return list of events
-     */
-    synchronized List<StepEvent> getEvents() {
-        return ImmutableList.copyOf(events);
-    }
-
-    /**
-     * Returns the status record of the specified test step.
-     *
-     * @param step test step or group
-     * @return step status record
-     */
-    Status getStatus(Step step) {
-        return checkNotNull(statusMap.get(step.name()), "Step %s not found", step.name());
-    }
-
-    /**
-     * Marks the specified test step as being in progress.
-     *
-     * @param step test step or group
-     */
-    synchronized void markStarted(Step step) {
-        add(new StepEvent(step.name(), IN_PROGRESS, step.command()));
-        save();
-    }
-
-    /**
-     * Marks the specified test step as being complete.
-     *
-     * @param step   test step or group
-     * @param status new step status
-     */
-    synchronized void markComplete(Step step, Status status) {
-        add(new StepEvent(step.name(), status, null));
-        save();
-    }
-
-    /**
-     * Returns true if all steps in the store have been marked as completed
-     * regardless of the completion status.
-     *
-     * @return true if all steps completed one way or another
-     */
-    synchronized boolean isComplete() {
-        return !statusMap.values().stream().anyMatch(s -> s == WAITING || s == IN_PROGRESS);
-    }
-
-    /**
-     * Indicates whether there are any failures.
-     *
-     * @return true if there are failed steps
-     */
-    boolean hasFailures() {
-        for (Status status : statusMap.values()) {
-            if (status == FAILED) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Registers a new step record.
-     *
-     * @param event step event
-     */
-    private synchronized void add(StepEvent event) {
-        events.add(event);
-        statusMap.put(event.name(), event.status());
-        startTime = Math.min(startTime, event.time());
-        endTime = Math.max(endTime, event.time());
-    }
-
-    /**
-     * Loads the states from disk.
-     */
-    private void load() {
-        try {
-            PropertiesConfiguration cfg = new PropertiesConfiguration(storeFile);
-            cfg.getKeys().forEachRemaining(prop -> add(StepEvent.fromString(cfg.getString(prop))));
-            cfg.save();
-        } catch (ConfigurationException e) {
-            print("Unable to load file %s", storeFile);
-        }
-    }
-
-    /**
-     * Saves the states to disk.
-     */
-    private void save() {
-        try {
-            PropertiesConfiguration cfg = new PropertiesConfiguration(storeFile);
-            events.forEach(event -> cfg.setProperty("T" + event.time(), event.toString()));
-            cfg.save();
-        } catch (ConfigurationException e) {
-            print("Unable to store file %s", storeFile);
-        }
-    }
-
-    /**
-     * Removes all scenario log files.
-     */
-    private void removeLogs() {
-        File[] logFiles = logDir.listFiles();
-        if (logFiles != null && logFiles.length > 0) {
-            for (File file : logFiles) {
-                if (!file.delete()) {
-                    print("Unable to delete log file %s", file);
-                }
-            }
-        }
-    }
-
-    /**
-     * Returns the scenario run start time.
-     *
-     * @return start time in mills since start of epoch
-     */
-    public long startTime() {
-        return startTime;
-    }
-
-    /**
-     * Returns the scenario run end time or current time if the scenario
-     * is still running.
-     *
-     * @return end time (or current time) in mills since start of epoch
-     */
-    public long endTime() {
-        return endTime > 0 ? endTime : System.currentTimeMillis();
-    }
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.base.MoreObjects;
-import org.onlab.graph.Vertex;
-
-import java.util.Objects;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-/**
- * Representation of a test step.
- */
-public class Step implements Vertex {
-
-    protected final String name;
-    protected final String command;
-    protected final String env;
-    protected final String cwd;
-    protected final Group group;
-    protected final int delay;
-
-    /**
-     * Creates a new test step.
-     *
-     * @param name    step name
-     * @param command step command to execute
-     * @param env     path to file to be sourced into the environment
-     * @param cwd     path to current working directory for the step
-     * @param group   optional group to which this step belongs
-     * @param delay   seconds to delay before executing
-     */
-    public Step(String name, String command, String env, String cwd, Group group, int delay) {
-        this.name = checkNotNull(name, "Name cannot be null");
-        this.group = group;
-        this.delay = delay;
-
-        // Set the command, environment and cwd
-        // If one is not given use the value from the enclosing group
-        this.command = command != null ? command : group != null && group.command != null ? group.command : null;
-        this.env = env != null ? env : group != null && group.env != null ? group.env : null;
-        this.cwd = cwd != null ? cwd : group != null && group.cwd != null ? group.cwd : null;
-    }
-
-    /**
-     * Returns the step name.
-     *
-     * @return step name
-     */
-    public String name() {
-        return name;
-    }
-
-    /**
-     * Returns the step command string.
-     *
-     * @return command string
-     */
-    public String command() {
-        return command;
-    }
-
-    /**
-     * Returns the step environment script path.
-     *
-     * @return env script path
-     */
-    public String env() {
-        return env;
-    }
-
-    /**
-     * Returns the step current working directory path.
-     *
-     * @return current working dir path
-     */
-    public String cwd() {
-        return cwd;
-    }
-
-    /**
-     * Returns the enclosing group; null if none.
-     *
-     * @return enclosing group or null
-     */
-    public Group group() {
-        return group;
-    }
-
-    /**
-     * Returns the start delay in seconds.
-     *
-     * @return number of seconds
-     */
-    public int delay() {
-        return delay;
-    }
-
-    @Override
-    public int hashCode() {
-        return name.hashCode();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (obj instanceof Step) {
-            final Step other = (Step) obj;
-            return Objects.equals(this.name, other.name);
-        }
-        return false;
-    }
-
-    @Override
-    public String toString() {
-        return MoreObjects.toStringHelper(this)
-                .add("name", name)
-                .add("command", command)
-                .add("env", env)
-                .add("cwd", cwd)
-                .add("group", group)
-                .add("delay", delay)
-                .toString();
-    }
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.onlab.stc.Coordinator.Status;
-
-import static java.lang.Long.parseLong;
-import static org.onlab.stc.Coordinator.Status.valueOf;
-
-/**
- * Represents an event of execution of a scenario step or group.
- */
-public class StepEvent {
-
-    private static final String SEP = "~";
-
-    private final String name;
-    private final long time;
-    private final Status status;
-    private final String command;
-
-    /**
-     * Creates a new step record.
-     *
-     * @param name    test step or group name
-     * @param time    time in millis since start of epoch
-     * @param status  step completion status
-     * @param command step command
-     */
-    public StepEvent(String name, long time, Status status, String command) {
-        this.name = name;
-        this.time = time;
-        this.status = status;
-        this.command = command;
-    }
-
-    /**
-     * Creates a new step record for non-running status.
-     *
-     * @param name    test step or group name
-     * @param status  status
-     * @param command step command
-     */
-    public StepEvent(String name, Status status, String command) {
-        this(name, System.currentTimeMillis(), status, command);
-    }
-
-    /**
-     * Returns the test step or test group name.
-     *
-     * @return step or group name
-     */
-    public String name() {
-        return name;
-    }
-
-    /**
-     * Returns the step event  time.
-     *
-     * @return time in millis since start of epoch
-     */
-    public long time() {
-        return time;
-    }
-
-    /**
-     * Returns the step completion status.
-     *
-     * @return completion status
-     */
-    public Status status() {
-        return status;
-    }
-
-    /**
-     * Returns the step command.
-     *
-     * @return step command
-     */
-    public String command() {
-        return command;
-    }
-
-
-    @Override
-    public String toString() {
-        return name + SEP + time + SEP + status + SEP + command;
-    }
-
-    /**
-     * Returns a record parsed from the specified string.
-     *
-     * @param string string encoding
-     * @return step record
-     */
-    public static StepEvent fromString(String string) {
-        String[] fields = string.split("~");
-        return fields.length == 4 ?
-                new StepEvent(fields[0], parseLong(fields[1]), valueOf(fields[2]),
-                              fields[3].equals("null") ? null : fields[3]) :
-                new StepEvent(fields[0], 0, Status.WAITING, null);
-    }
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-/**
- * Entity capable of receiving notifications of process step execution events.
- */
-public interface StepProcessListener {
-
-    /**
-     * Indicates that process step has started.
-     *
-     * @param step    subject step
-     * @param command actual command executed; includes run-time substitutions
-     */
-    default void onStart(Step step, String command) {
-    }
-
-    /**
-     * Indicates that process step has completed.
-     *
-     * @param step   subject step
-     * @param status step completion status
-     */
-    default void onCompletion(Step step, Coordinator.Status status) {
-    }
-
-    /**
-     * Notifies when a new line of output becomes available.
-     *
-     * @param step subject step
-     * @param line line of output
-     */
-    default void onOutput(Step step, String line) {
-    }
-
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.onlab.stc.Coordinator.Status;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.PrintWriter;
-
-import static java.lang.String.format;
-import static org.onlab.stc.Coordinator.Status.FAILED;
-import static org.onlab.stc.Coordinator.Status.SUCCEEDED;
-import static org.onlab.stc.Coordinator.print;
-
-/**
- * Manages execution of the specified step or a group.
- */
-class StepProcessor implements Runnable {
-
-    private static final String IGNORE_CODE = "~";
-    private static final String NEGATE_CODE = "!";
-
-    private static final int FAIL = -1;
-    private static final int SECONDS = 1_000;
-
-    static String launcher = "stc-launcher ";
-
-    private final Step step;
-    private final File logDir;
-    private String command;
-
-    private Process process;
-    private StepProcessListener delegate;
-
-    /**
-     * Creates a process monitor.
-     *
-     * @param step     step or group to be executed
-     * @param logDir   directory where step process log should be stored
-     * @param delegate process lifecycle listener
-     * @param command  actual command to execute
-     */
-    StepProcessor(Step step, File logDir, StepProcessListener delegate,
-                  String command) {
-        this.step = step;
-        this.logDir = logDir;
-        this.delegate = delegate;
-        this.command = command;
-    }
-
-    @Override
-    public void run() {
-        delegate.onStart(step, command);
-        delayIfNeeded();
-        int code = execute();
-        boolean ignoreCode = step.env() != null && step.env.equals(IGNORE_CODE);
-        boolean negateCode = step.env() != null && step.env.equals(NEGATE_CODE);
-        Status status = ignoreCode || code == 0 && !negateCode || code != 0 && negateCode ?
-                SUCCEEDED : FAILED;
-        delegate.onCompletion(step, status);
-    }
-
-    /**
-     * Pauses if the step requires it.
-     */
-    private void delayIfNeeded() {
-        if (step.delay() > 0) {
-            try {
-                Thread.sleep(step.delay() * SECONDS);
-            } catch (InterruptedException e) {
-                throw new RuntimeException("Interrupted", e);
-            }
-        }
-    }
-
-    /**
-     * Executes the step process.
-     *
-     * @return exit code
-     */
-    private int execute() {
-        try (PrintWriter pw = new PrintWriter(logFile())) {
-            process = Runtime.getRuntime().exec(command());
-            processOutput(pw);
-
-            // Wait for the process to complete and get its exit code.
-            if (process.isAlive()) {
-                process.waitFor();
-            }
-            return process.exitValue();
-
-        } catch (IOException e) {
-            print("Unable to run step %s using command %s", step.name(), step.command());
-        } catch (InterruptedException e) {
-            print("Step %s interrupted", step.name());
-        }
-        return FAIL;
-    }
-
-    /**
-     * Returns ready-to-run command for the step.
-     *
-     * @return command to execute
-     */
-    private String command() {
-        return format("%s %s %s %s", launcher,
-                      step.env() != null ? step.env() : "-",
-                      step.cwd() != null ? step.cwd() : "-",
-                      command);
-    }
-
-    /**
-     * Captures output of the step process.
-     *
-     * @param pw print writer to send output to
-     * @throws IOException if unable to read output or write logs
-     */
-    private void processOutput(PrintWriter pw) throws IOException {
-        InputStream out = process.getInputStream();
-        BufferedReader br = new BufferedReader(new InputStreamReader(out));
-
-        // Slurp its combined stderr/stdout
-        String line;
-        while ((line = br.readLine()) != null) {
-            pw.println(line);
-            delegate.onOutput(step, line);
-        }
-    }
-
-    /**
-     * Returns the log file for the step output.
-     *
-     * @return log file
-     */
-    private File logFile() {
-        return new File(logDir, step.name() + ".log");
-    }
-
-}

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * System Test Coordinator tool for modular scenario-based testing.
- */
-package org.onlab.stc;
\ No newline at end of file

-<!DOCTYPE html>
-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<html>
-<head lang="en">
-    <meta charset="utf-8">
-    <title>Scenario Test Coordinator</title>
-
-    <link rel="stylesheet" href="stc.css">
-
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
-    <script src="stc.js"></script>
-</head>
-<body>
-</body>
-</html>
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-.body {
-    font-family: Helvetica, Arial, sans-serif;
-}
-
-.node {
-    stroke: #fff;
-    stroke-width: 1.5px;
-}
-
-.link {
-    stroke: #999;
-    stroke-opacity: .6;
-}
-
-text {
-    font-family: 'DejaVu Sans', Arial, Helvetica, sans-serif;
-    stroke: #000;
-    stroke-width: 0.2;
-    font-weight: normal;
-    font-size: 0.6em;
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-(function () {
-
-    var ws, flow,
-        nodes = [],
-        links = [],
-        nodeIndexes = {};
-
-    var width = 2400,
-        height = 2400;
-
-    var color = d3.scale.category20();
-
-    var force = d3.layout.force()
-        .charge(-820)
-        .linkDistance(50)
-        .size([width, height]);
-
-    // Process flow graph layout
-    function createNode(n) {
-        nodeIndexes[n.name] = nodes.push(n) - 1;
-    }
-
-    function createLink(e) {
-        e.source = nodeIndexes[e.src];
-        e.target = nodeIndexes[e.dst];
-        links.push(e);
-    }
-
-    // Returns the newly computed bounding box of the rectangle
-    function adjustRectToFitText(n) {
-        var text = n.select('text'),
-            box = text.node().getBBox();
-
-        text.attr('text-anchor', 'left')
-            .attr('y', 2)
-            .attr('x', 4);
-
-        // add padding
-        box.x -= 4;
-        box.width += 8;
-        box.y -= 2;
-        box.height += 4;
-
-        n.select("rect").attr(box);
-    }
-
-    function processFlow() {
-        var svg = d3.select("body").append("svg")
-            .attr("width", width)
-            .attr("height", height);
-
-        flow.steps.forEach(createNode);
-        flow.requirements.forEach(createLink);
-
-        force
-            .nodes(nodes)
-            .links(links)
-            .start();
-
-        var link = svg.selectAll(".link")
-            .data(links)
-          .enter().append("line")
-            .attr("class", "link")
-            .style("stroke-width", function(d) { return d.isSoft ? 1 : 2; });
-
-        var node = svg.selectAll(".node")
-            .data(nodes)
-          .enter().append("g")
-            .attr("class", "node")
-            .call(force.drag);
-
-        node.append("rect")
-            .attr({ rx: 5, ry:5, width:180, height:18 })
-            .style("fill", function(d) { return color(d.group); });
-
-        node.append("text").text( function(d) { return d.name; })
-            .attr({ dy:"1.1em", width:100, height:16, x:4, y:2 });
-
-        node.append("title")
-            .text(function(d) { return d.name; });
-
-        force.on("tick", function() {
-            link.attr("x1", function(d) { return d.source.x; })
-                .attr("y1", function(d) { return d.source.y; })
-                .attr("x2", function(d) { return d.target.x; })
-                .attr("y2", function(d) { return d.target.y; });
-
-            node.attr("transform", function(d) { return "translate(" + (d.x - 180/2) + "," + (d.y - 18/2) + ")"; });
-        });
-    }
-
-
-    // Web socket callbacks
-
-    function handleOpen() {
-        console.log('WebSocket open');
-    }
-
-    // Handles the specified (incoming) message using handler bindings.
-    function handleMessage(msg) {
-        console.log('rx: ', msg);
-        evt = JSON.parse(msg.data);
-        if (evt.event === 'progress') {
-
-        } else if (evt.event === 'log') {
-
-        } else if (evt.event === 'flow') {
-            flow = evt.payload;
-            processFlow();
-        }
-    }
-
-    function handleClose() {
-        console.log('WebSocket closed');
-    }
-
-    if (false) {
-        d3.json("data.json", function (error, data) {
-            flow = data;
-            processFlow();
-        });
-        return;
-    }
-
-    // Open the web-socket
-    ws = new WebSocket(document.location.href.replace('http:', 'ws:'));
-    if (ws) {
-        ws.onopen = handleOpen;
-        ws.onmessage = handleMessage;
-        ws.onclose = handleClose;
-    }
-
-})();
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.onlab.util.Tools;
-
-import com.google.common.io.Files;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-
-import static com.google.common.io.ByteStreams.toByteArray;
-import static com.google.common.io.Files.write;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
-import static org.onlab.stc.Scenario.loadScenario;
-
-/**
- * Test of the test scenario compiler.
- */
-public class CompilerTest {
-
-
-    private static File testDir;
-
-    @BeforeClass
-    public static void setUpClass() throws IOException {
-        testDir = Files.createTempDir();
-        stageTestResource("scenario.xml");
-        stageTestResource("simple-scenario.xml");
-        stageTestResource("one-scenario.xml");
-        stageTestResource("two-scenario.xml");
-
-        System.setProperty("prop.foo", "Foobar");
-        System.setProperty("prop.bar", "Barfoo");
-        System.setProperty("TOC1", "1.2.3.1");
-        System.setProperty("TOC2", "1.2.3.2");
-        System.setProperty("TOC3", "1.2.3.3");
-        System.setProperty("test.dir", testDir.getAbsolutePath());
-    }
-
-    @AfterClass
-    public static void tearDownClass() throws IOException {
-        Tools.removeDirectory(testDir.getPath());
-    }
-
-    static FileInputStream getStream(String name) throws FileNotFoundException {
-        return new FileInputStream(new File(testDir, name));
-    }
-
-    static void stageTestResource(String name) throws IOException {
-        byte[] bytes = toByteArray(CompilerTest.class.getResourceAsStream(name));
-        write(bytes, new File(testDir, name));
-    }
-
-    @Test
-    public void basics() throws Exception {
-        Scenario scenario = loadScenario(getStream("scenario.xml"));
-        Compiler compiler = new Compiler(scenario);
-        compiler.compile();
-        ProcessFlow flow = compiler.processFlow();
-
-        assertSame("incorrect scenario", scenario, compiler.scenario());
-        assertEquals("incorrect step count", 33, flow.getVertexes().size());
-        assertEquals("incorrect dependency count", 26, flow.getEdges().size());
-        assertEquals("incorrect logDir",
-                     new File(testDir.getAbsolutePath(), "foo"), compiler.logDir());
-
-        Step step = compiler.getStep("there");
-        assertEquals("incorrect edge count", 2, flow.getEdgesFrom(step).size());
-        assertEquals("incorrect edge count", 0, flow.getEdgesTo(step).size());
-
-        Step group = compiler.getStep("three");
-        assertEquals("incorrect edge count", 2, flow.getEdgesFrom(group).size());
-        assertEquals("incorrect edge count", 0, flow.getEdgesTo(group).size());
-    }
-
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.onlab.util.Tools;
-
-import java.io.IOException;
-
-import static org.onlab.stc.CompilerTest.getStream;
-import static org.onlab.stc.Coordinator.print;
-import static org.onlab.stc.Scenario.loadScenario;
-
-/**
- * Test of the test coordinator.
- */
-public class CoordinatorTest {
-
-    private Coordinator coordinator;
-    private StepProcessListener listener = new Listener();
-
-    @BeforeClass
-    public static void setUpClass() throws IOException {
-        CompilerTest.setUpClass();
-
-        StepProcessor.launcher = "true ";
-    }
-
-    @AfterClass
-    public static void tearDownClass() throws IOException {
-        CompilerTest.tearDownClass();
-    }
-
-    @Test
-    public void simple() throws IOException, InterruptedException {
-        executeTest("simple-scenario.xml");
-    }
-
-    @Test
-    public void complex() throws IOException, InterruptedException {
-        executeTest("scenario.xml");
-    }
-
-    private void executeTest(String name) throws IOException, InterruptedException {
-        Scenario scenario = loadScenario(getStream(name));
-        Compiler compiler = new Compiler(scenario);
-        compiler.compile();
-        Tools.removeDirectory(compiler.logDir());
-        coordinator = new Coordinator(scenario, compiler.processFlow(), compiler.logDir());
-        coordinator.addListener(listener);
-        coordinator.reset();
-        coordinator.start();
-        coordinator.waitFor();
-        coordinator.removeListener(listener);
-    }
-
-    private class Listener implements StepProcessListener {
-        @Override
-        public void onStart(Step step, String command) {
-            print("> %s: started; %s", step.name(), command);
-        }
-
-        @Override
-        public void onCompletion(Step step, Coordinator.Status status) {
-            print("< %s: %s", step.name(), status == Coordinator.Status.SUCCEEDED ? "completed" : "failed");
-        }
-
-        @Override
-        public void onOutput(Step step, String line) {
-            print("  %s: %s", step.name(), line);
-        }
-    }
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.testing.EqualsTester;
-import org.apache.commons.configuration.ConfigurationException;
-import org.junit.Before;
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-/**
- * Test of the test step dependency.
- */
-public class DependencyTest extends StepTest {
-
-    protected Step step1, step2;
-
-    @Override
-    @Before
-    public void setUp() throws ConfigurationException {
-        super.setUp();
-        step1 = new Step("step1", CMD, null, null, null, 0);
-        step2 = new Step("step2", CMD, null, null, null, 0);
-    }
-
-    @Test
-    public void hard() {
-        Dependency hard = new Dependency(step1, step2, false);
-        assertSame("incorrect src", step1, hard.src());
-        assertSame("incorrect dst", step2, hard.dst());
-        assertFalse("incorrect isSoft", hard.isSoft());
-    }
-
-    @Test
-    public void soft() {
-        Dependency soft = new Dependency(step2, step1, true);
-        assertSame("incorrect src", step2, soft.src());
-        assertSame("incorrect dst", step1, soft.dst());
-        assertTrue("incorrect isSoft", soft.isSoft());
-    }
-
-    @Override
-    @Test
-    public void equality() {
-        Dependency d1 = new Dependency(step1, step2, false);
-        Dependency d2 = new Dependency(step1, step2, false);
-        Dependency d3 = new Dependency(step1, step2, true);
-        Dependency d4 = new Dependency(step2, step1, true);
-        new EqualsTester()
-                .addEqualityGroup(d1, d2)
-                .addEqualityGroup(d3)
-                .addEqualityGroup(d4)
-                .testEquals();
-    }
-
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.testing.EqualsTester;
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
-
-/**
- * Test of the test scenario entity.
- */
-public class GroupTest extends StepTest {
-
-    @Test
-    public void basics() {
-        Group group = new Group(NAME, CMD, ENV, CWD, parent, 1);
-        assertEquals("incorrect name", NAME, group.name());
-        assertEquals("incorrect command", CMD, group.command());
-        assertEquals("incorrect env", ENV, group.env());
-        assertEquals("incorrect cwd", CWD, group.cwd());
-        assertSame("incorrect group", parent, group.group());
-        assertEquals("incorrect delay", 1, group.delay());
-
-        Step step = new Step("step", null, null, null, group, 0);
-        group.addChild(step);
-        assertSame("incorrect child", step, group.children().iterator().next());
-    }
-
-    @Test
-    public void equality() {
-        Group g1 = new Group(NAME, CMD, null, null, parent, 0);
-        Group g2 = new Group(NAME, CMD, ENV, CWD, null, 0);
-        Group g3 = new Group("foo", null, null, null, parent, 0);
-        new EqualsTester()
-                .addEqualityGroup(g1, g2)
-                .addEqualityGroup(g3)
-                .testEquals();
-    }
-
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-import org.onlab.stc.MonitorLayout.Box;
-
-import java.io.IOException;
-
-import static org.junit.Assert.assertEquals;
-import static org.onlab.stc.CompilerTest.getStream;
-import static org.onlab.stc.CompilerTest.stageTestResource;
-import static org.onlab.stc.MonitorLayout.SLOT_WIDTH;
-import static org.onlab.stc.Scenario.loadScenario;
-
-/**
- * Tests of the monitor layout functionality.
- */
-public class MonitorLayoutTest {
-
-    private MonitorLayout layout;
-
-    @BeforeClass
-    public static void setUpClass() throws IOException {
-        CompilerTest.setUpClass();
-    }
-
-    @AfterClass
-    public static void tearDownClass() throws IOException {
-        CompilerTest.tearDownClass();
-    }
-
-    private Compiler getCompiler(String name) throws IOException {
-        stageTestResource(name);
-        Scenario scenario = loadScenario(getStream(name));
-        Compiler compiler = new Compiler(scenario);
-        compiler.compile();
-        return compiler;
-    }
-
-    @Test
-    public void basic() throws IOException {
-        layout = new MonitorLayout(getCompiler("layout-basic.xml"));
-        validate(layout, null, 0, 1, 5, 2);
-        validate(layout, "a", 1, 1, 1, 1, 1, -SLOT_WIDTH / 2);
-        validate(layout, "b", 2, 2, 1, 1, 0, 0);
-        validate(layout, "f", 3, 3, 1);
-
-        validate(layout, "g", 1, 1, 4, 1, 1, SLOT_WIDTH / 2);
-        validate(layout, "c", 2, 1, 1);
-        validate(layout, "d", 3, 2, 1);
-        validate(layout, "e", 4, 3, 1);
-    }
-
-    @Test
-    public void basicNest() throws IOException {
-        layout = new MonitorLayout(getCompiler("layout-basic-nest.xml"));
-        validate(layout, null, 0, 1, 6, 2);
-        validate(layout, "a", 1, 1, 1, 1, 1, -SLOT_WIDTH / 2);
-        validate(layout, "b", 2, 2, 1);
-        validate(layout, "f", 3, 3, 1);
-
-        validate(layout, "g", 1, 1, 5, 1);
-        validate(layout, "c", 2, 1, 1);
-
-        validate(layout, "gg", 3, 2, 3, 1);
-        validate(layout, "d", 4, 1, 1);
-        validate(layout, "e", 5, 2, 1);
-    }
-
-    @Test
-    public void staggeredDependencies() throws IOException {
-        layout = new MonitorLayout(getCompiler("layout-staggered-dependencies.xml"));
-        validate(layout, null, 0, 1, 7, 4);
-        validate(layout, "a", 1, 1, 1, 1, 1, -SLOT_WIDTH - SLOT_WIDTH / 2);
-        validate(layout, "aa", 1, 1, 1, 1, 1, -SLOT_WIDTH / 2);
-        validate(layout, "b", 2, 2, 1);
-        validate(layout, "f", 3, 3, 1);
-
-        validate(layout, "g", 1, 1, 5, 2, 1, +SLOT_WIDTH / 2);
-        validate(layout, "c", 2, 1, 1);
-
-        validate(layout, "gg", 3, 2, 3, 2);
-        validate(layout, "d", 4, 1, 1);
-        validate(layout, "dd", 4, 1, 1);
-        validate(layout, "e", 5, 2, 1);
-
-        validate(layout, "i", 6, 6, 1);
-    }
-
-    @Test
-    public void deepNext() throws IOException {
-        layout = new MonitorLayout(getCompiler("layout-deep-nest.xml"));
-        validate(layout, null, 0, 1, 7, 6);
-        validate(layout, "a", 1, 1, 1);
-        validate(layout, "aa", 1, 1, 1);
-        validate(layout, "b", 2, 2, 1);
-        validate(layout, "f", 3, 3, 1);
-
-        validate(layout, "g", 1, 1, 5, 2);
-        validate(layout, "c", 2, 1, 1);
-
-        validate(layout, "gg", 3, 2, 3, 2);
-        validate(layout, "d", 4, 1, 1);
-        validate(layout, "dd", 4, 1, 1);
-        validate(layout, "e", 5, 2, 1);
-
-        validate(layout, "i", 6, 6, 1);
-
-        validate(layout, "g1", 1, 1, 6, 2);
-        validate(layout, "g2", 2, 1, 5, 2);
-        validate(layout, "g3", 3, 1, 4, 2);
-        validate(layout, "u", 4, 1, 1);
-        validate(layout, "v", 4, 1, 1);
-        validate(layout, "w", 5, 2, 1);
-        validate(layout, "z", 6, 3, 1);
-    }
-
-
-    private void validate(MonitorLayout layout, String name,
-                          int absoluteTier, int tier, int depth, int breadth) {
-        Box b = layout.get(name);
-        assertEquals("incorrect absolute tier", absoluteTier, b.absoluteTier());
-        assertEquals("incorrect tier", tier, b.tier());
-        assertEquals("incorrect depth", depth, b.depth());
-        assertEquals("incorrect breadth", breadth, b.breadth());
-    }
-
-    private void validate(MonitorLayout layout, String name,
-                          int absoluteTier, int tier, int depth, int breadth,
-                          int top, int center) {
-        validate(layout, name, absoluteTier, tier, depth, breadth);
-        Box b = layout.get(name);
-        assertEquals("incorrect top", top, b.top());
-        assertEquals("incorrect center", center, b.center());
-    }
-
-    private void validate(MonitorLayout layout, String name,
-                          int absoluteTier, int tier, int depth) {
-        validate(layout, name, absoluteTier, tier, depth, 1);
-    }
-
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.apache.commons.configuration.ConfigurationException;
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-import static org.onlab.stc.Scenario.loadScenario;
-
-/**
- * Test of the test scenario entity.
- */
-public class ScenarioTest {
-
-    @Test
-    public void basics() throws ConfigurationException {
-        Scenario scenario = loadScenario(getClass().getResourceAsStream("scenario.xml"));
-        assertEquals("incorrect name", "foo", scenario.name());
-        assertEquals("incorrect description", "Test Scenario", scenario.description());
-        assertEquals("incorrect logDir", "Test Scenario", scenario.description());
-        assertEquals("incorrect definition", "Test Scenario",
-                     scenario.definition().getString("[@description]"));
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void badStream() throws ConfigurationException {
-       loadScenario(getClass().getResourceAsStream("no.xml"));
-    }
-
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import org.junit.BeforeClass;
-import org.junit.ClassRule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-import java.io.File;
-import static com.google.common.base.Preconditions.checkState;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static org.onlab.stc.Coordinator.Status.SUCCEEDED;
-
-/**
- * Test of the step processor.
- */
-public class StepProcessorTest {
-
-    @ClassRule
-    public static TemporaryFolder testFolder = new TemporaryFolder();
-
-    private static File dir;
-    private final Listener delegate = new Listener();
-
-    @BeforeClass
-    public static void setUpClass() {
-        dir = testFolder.getRoot();
-        StepProcessor.launcher = "echo";
-        checkState(dir.exists() || dir.mkdirs(), "Unable to create directory");
-    }
-
-    @Test
-    public void basics() {
-        Step step = new Step("foo", "ls " + dir.getAbsolutePath(), null, null, null, 0);
-        StepProcessor processor = new StepProcessor(step, dir, delegate, step.command());
-        processor.run();
-        assertTrue("should be started", delegate.started);
-        assertTrue("should be stopped", delegate.stopped);
-        assertEquals("incorrect status", SUCCEEDED, delegate.status);
-        assertTrue("should have output", delegate.output);
-    }
-
-    private class Listener implements StepProcessListener {
-
-        private Coordinator.Status status;
-        private boolean started, stopped, output;
-
-        @Override
-        public void onStart(Step step, String command) {
-            started = true;
-        }
-
-        @Override
-        public void onCompletion(Step step, Coordinator.Status status) {
-            stopped = true;
-            this.status = status;
-        }
-
-        @Override
-        public void onOutput(Step step, String line) {
-            output = true;
-        }
-    }
-
-}
\ No newline at end of file

-/*
- * Copyright 2015-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onlab.stc;
-
-import com.google.common.testing.EqualsTester;
-import org.apache.commons.configuration.ConfigurationException;
-import org.junit.Before;
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertSame;
-
-/**
- * Test of the test step entity.
- */
-public class StepTest {
-
-    protected static final String NAME = "step";
-    protected static final String CMD = "command";
-    protected static final String ENV = "environment";
-    protected static final String CWD = "directory";
-    protected Group parent;
-
-    @Before
-    public void setUp() throws ConfigurationException {
-        parent = new Group("parent", null, null, null, null, 0);
-    }
-
-    @Test
-    public void basics() {
-        Step step = new Step(NAME, CMD, ENV, CWD, parent, 1);
-        assertEquals("incorrect name", NAME, step.name());
-        assertEquals("incorrect command", CMD, step.command());
-        assertEquals("incorrect env", ENV, step.env());
-        assertEquals("incorrect cwd", CWD, step.cwd());
-        assertSame("incorrect group", parent, step.group());
-        assertEquals("incorrect delay", 1, step.delay());
-    }
-
-    @Test
-    public void equality() {
-        Step s1 = new Step(NAME, CMD, null, null, parent, 0);
-        Step s2 = new Step(NAME, CMD, ENV, CWD, null, 0);
-        Step s3 = new Step("foo", null, null, null, parent, 0);
-        new EqualsTester()
-                .addEqualityGroup(s1, s2)
-                .addEqualityGroup(s3)
-                .testEquals();
-    }
-}
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="basic-nest">
-    <step name="a"/>
-    <step name="b" requires="a"/>
-    <step name="f" requires="b"/>
-    <group name="g">
-        <step name="c"/>
-        <group name="gg" requires="c">
-            <step name="d"/>
-            <step name="e" requires="d"/>
-        </group>
-    </group>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="basic">
-    <step name="a"/>
-    <step name="b" requires="a"/>
-    <step name="f" requires="b"/>
-    <group name="g">
-        <step name="c"/>
-        <step name="d" requires="c"/>
-        <step name="e" requires="d"/>
-    </group>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="basic-nest">
-    <step name="a"/>
-    <step name="aa"/>
-    <step name="b" requires="a"/>
-    <step name="f" requires="b,aa"/>
-    <group name="g">
-        <step name="c"/>
-        <group name="gg" requires="c">
-            <step name="d"/>
-            <step name="dd" requires="c"/>
-            <step name="e" requires="d"/>
-        </group>
-    </group>
-    <step name="i" requires="f,g"/>
-
-    <group name="g1">
-        <group name="g2">
-            <group name="g3">
-                <step name="u"/>
-                <step name="v"/>
-                <step name="w" requires="u,v"/>
-                <step name="z" requires="u,w"/>
-            </group>
-        </group>
-    </group>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="basic-nest">
-    <step name="a"/>
-    <step name="aa"/>
-    <step name="b" requires="a"/>
-    <step name="f" requires="b,aa"/>
-    <group name="g">
-        <step name="c"/>
-        <group name="gg" requires="c">
-            <step name="d"/>
-            <step name="dd" requires="c"/>
-            <step name="e" requires="d"/>
-        </group>
-    </group>
-    <step name="i" requires="f,g"/>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<scenario name="one" description="" logDir="${test.dir}/junit-stc/one">
-    <step name="yolo" exec="some-command args"/>
-    <step name="hello" exec="some-command other args" requires="yolo"/>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="foo" description="Test Scenario" logDir="${test.dir}/foo">
-    <import file="${test.dir}/one-scenario.xml" namespace="foo"/>
-
-    <import file="${test.dir}/two-scenario.xml"/>
-
-    <dependency name="dude" requires="~yolo"/>
-
-    <step name="yo" exec="some-command ${HOME} and ${prop.foo} args" if="${prop.foo}"/>
-    <step name="hi" exec="some-command ${prop.bar} or ${HOME} other args"/>
-    <step name="there" exec="another-command" requires="yo,hi"/>
-
-    <step name="maybe" exec="another-command" requires="~hi" unless="${prop.foo}"/>
-
-    <group name="alpha" exec="same-command args" requires="yo">
-        <step name="one" exec="asdads"/>
-        <step name="two" exec="asdads"/>
-        <group name="three" exec="asdads" requires="one,two">
-            <step name="three.a"/>
-            <step name="three.b" requires="three.a"/>
-            <step name="three.c" requires="three.b"/>
-        </group>
-    </group>
-
-    <dependency name="maybe" requires="yo"/>
-
-    <parallel var="${TOC#}" requires="alpha">
-        <step name="ping-${#}" exec="asdads ${TOC#}"/>
-        <step name="pong-${#}" exec="asdads"/>
-        <step name="ding-${#}" exec="asdads" requires="ping-${#},pong-${#}"/>
-        <dependency name="maybe" requires="ding-${#}"/>
-    </parallel>
-
-    <sequential var="${TOC#}" requires="alpha" starts="fifi-${#},gigi-${#}" ends="gaga-${#-1}">
-        <step name="fifi-${#}" exec="asdads ${TOC#}"/>
-        <step name="gigi-${#}" exec="asdads"/>
-        <step name="gaga-${#}" exec="asdads" requires="fifi-${#},gigi-${#}"/>
-        <dependency name="maybe" requires="gaga-${#}"/>
-    </sequential>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-<scenario name="foo" description="Simple Test Scenario" logDir="${test.dir}/junit-stc/foo">
-    <group name="alpha" exec="same-command args">
-        <step name="one" exec="asdads"/>
-        <step name="two" exec="asdads"/>
-        <group name="three" exec="asdads" requires="one,two">
-            <step name="three.a"/>
-            <step name="three.b" requires="three.a"/>
-            <step name="three.c" requires="three.b"/>
-        </group>
-    </group>
-</scenario>
\ No newline at end of file

-<!--
-  ~ Copyright 2015-present Open Networking Laboratory
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<scenario name="two" description="" logDir="${test.dir}/junit-stc/two">
-    <step name="dude" exec="some-command args"/>
-    <step name="waz" exec="some-command other args"/>
-    <step name="up" exec="another-command" requires="dude,waz"/>
-</scenario>
\ No newline at end of file