Deprecate and clean up some classes on control metric aggregation

Since the metric aggregation logic has been moved to message
provider, now there is no caller which refers to those classes.
Due to this reason, following classes need to be purged to
maintain clean code repository.

Change-Id: Id5bcb7eda6ce3538c18007301da35df9255159ae

-/*
- * Copyright 2016-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.onosproject.cpman.impl;
-
-import org.onosproject.net.DeviceId;
-
-import java.util.Optional;
-
-/**
- * Control metrics observer interface.
- */
-public interface ControlMetricsObserver {
-
-    /**
-     * Feeds the extracted value from MetricAggregator to back-end storage.
-     *
-     * @param metricsAggregator metric aggregator
-     * @param deviceId          device identification
-     */
-    void feedMetrics(MetricsAggregator metricsAggregator, Optional<DeviceId> deviceId);
-
-    /**
-     * Feeds the extracted value from MetricAggregator to back-end storage.
-     *
-     * @param metricsAggregator metric aggregator
-     * @param resourceName      resource name
-     */
-    void feedMetrics(MetricsAggregator metricsAggregator, String resourceName);
-}

-/*
- * Copyright 2016-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.onosproject.cpman.impl;
-
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.onosproject.cpman.ControlMetric;
-import org.onosproject.cpman.ControlPlaneMonitorService;
-import org.onosproject.cpman.MetricValue;
-import org.onosproject.net.DeviceId;
-
-import java.util.Optional;
-
-/**
- * Default ControlMetricsObserver.
- */
-public class DefaultControlMetricsObserver implements ControlMetricsObserver {
-
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected ControlPlaneMonitorService controlPlaneMonitorService;
-
-    @Override
-    public void feedMetrics(MetricsAggregator ma, Optional<DeviceId> deviceId) {
-        MetricValue mv = new MetricValue.Builder()
-                        .rate(ma.getRate())
-                        .count(ma.getCount())
-                        .load(ma.getLoad())
-                        .add();
-        ControlMetric cm = new ControlMetric(ma.getMetricsType(), mv);
-        controlPlaneMonitorService.updateMetric(cm, 1, deviceId);
-    }
-
-    @Override
-    public void feedMetrics(MetricsAggregator ma, String resourceName) {
-        MetricValue mv = new MetricValue.Builder()
-                        .rate(ma.getRate())
-                        .count(ma.getCount())
-                        .load(ma.getLoad())
-                        .add();
-        ControlMetric cm = new ControlMetric(ma.getMetricsType(), mv);
-        controlPlaneMonitorService.updateMetric(cm, 1, resourceName);
-    }
-}
\ No newline at end of file

-/*
- * Copyright 2016-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.onosproject.cpman.impl;
-
-import com.codahale.metrics.Meter;
-import org.apache.commons.lang3.StringUtils;
-import org.onlab.metrics.MetricsComponent;
-import org.onlab.metrics.MetricsFeature;
-import org.onlab.metrics.MetricsService;
-import org.onosproject.cpman.ControlMetricType;
-import org.onosproject.net.DeviceId;
-
-import java.util.Optional;
-
-import static com.google.common.base.Preconditions.checkNotNull;
-
-/**
- * An aggregator that aggregates a specific network or performance metrics via the metrics service.
- */
-public class MetricsAggregator {
-
-    private Meter rateMeter;
-    private Meter countMeter;
-    private MetricsService metricsService;
-    private MetricsComponent metricsComponent;
-    private MetricsFeature metricsFeature;
-    private ControlMetricType metricsType;
-    private static final int EXECUTE_PERIOD_IN_SECOND = 60;
-    private static final String RATE_NAME = "rate";
-    private static final String COUNT_NAME = "count";
-
-    /**
-     * Constructs a new metrics aggregator for aggregating a metric.
-     * Instantiates the metrics service
-     * Initializes all the general metrics for that object
-     *
-     * @param metricsService metric service reference
-     * @param type           control metric type
-     * @param deviceId       device identification
-     */
-    MetricsAggregator(MetricsService metricsService, ControlMetricType type,
-                      Optional<DeviceId> deviceId) {
-        init(metricsService, type, deviceId, null);
-    }
-
-    /**
-     * Constructs a new metrics aggregator for aggregating a metric.
-     * Instantiates the metrics service
-     * Initializes all the general metrics for that object
-     *
-     * @param metricsService metric service reference
-     * @param type           control metric type
-     * @param resourceName   resource name (e.g., ethernet interface name)
-     */
-    MetricsAggregator(MetricsService metricsService, ControlMetricType type,
-                      String resourceName) {
-        init(metricsService, type, Optional.ofNullable(null), resourceName);
-
-    }
-
-    /**
-     * Constructs a new metrics aggregator for aggregating a metric.
-     * Instantiates the metrics service
-     * Initializes all the general metrics for that object
-     *
-     * @param metricsService metrics service reference
-     * @param type           control metric type
-     */
-    MetricsAggregator(MetricsService metricsService, ControlMetricType type) {
-        init(metricsService, type, Optional.ofNullable(null), null);
-    }
-
-    /**
-     * Base method of the constructor of this class.
-     *
-     * @param metricsService metrics service reference
-     * @param type           control metric type
-     * @param deviceId       device identification
-     * @param resourceName   resource name
-     */
-    private void init(MetricsService metricsService, ControlMetricType type,
-                      Optional<DeviceId> deviceId, String resourceName) {
-        String primitiveName = type.toString();
-        String objName = "all";
-        if (deviceId.isPresent()) {
-            objName = deviceId.toString();
-        }
-
-        if (StringUtils.isNotEmpty(resourceName)) {
-            objName = resourceName;
-        }
-
-        checkNotNull(primitiveName, "Component name cannot be null");
-        checkNotNull(objName, "Feature name cannot be null");
-
-        this.metricsType = type;
-
-        this.metricsService = metricsService;
-        this.metricsComponent = metricsService.registerComponent(primitiveName);
-        this.metricsFeature = metricsComponent.registerFeature(objName);
-
-        this.rateMeter = metricsService.createMeter(metricsComponent, metricsFeature, RATE_NAME);
-        this.countMeter = metricsService.createMeter(metricsComponent, metricsFeature, COUNT_NAME);
-    }
-
-    /**
-     * Returns control metrics type.
-     *
-     * @return control metrics type
-     */
-    public ControlMetricType getMetricsType() {
-        return metricsType;
-    }
-
-    /**
-     * Increments the meter rate by n, and the meter counter by 1.
-     *
-     * @param n increment rate.
-     */
-    public void increment(long n) {
-        rateMeter.mark(n);
-        countMeter.mark(1);
-    }
-
-    /**
-     * Returns the average load value.
-     *
-     * @return load value
-     */
-    public long getLoad() {
-        return (long) rateMeter.getOneMinuteRate() / (long) countMeter.getOneMinuteRate();
-    }
-
-    /**
-     * Returns the average meter rate within recent 1 minute.
-     *
-     * @return rate value
-     */
-    public long getRate() {
-        return (long) rateMeter.getOneMinuteRate();
-    }
-
-    /**
-     * Returns the average meter count within recent 1 minute.
-     *
-     * @return count value
-     */
-    public long getCount() {
-        return (long) countMeter.getOneMinuteRate() * EXECUTE_PERIOD_IN_SECOND;
-    }
-}
\ No newline at end of file