Handle reporting errors gracefully for various metrics reporters

Change-Id: Ifc928fa25732609ff185caf213467ee40bdb6f53

@@ -92,7 +92,7 @@ public class DefaultGangliaMetricsReporter implements GangliaMetricsReporter {
     @Activate
     public void activate() {
         cfgService.registerProperties(getClass());
-        coreService.registerApplication("org.onosproject.metrics.reporter");
+        coreService.registerApplication("org.onosproject.gangliametrics");
         metricsService.registerReporter(this);
 
         startReport();
@@ -120,7 +120,13 @@ public class DefaultGangliaMetricsReporter implements GangliaMetricsReporter {
     public void startReport() {
         configGMetric();
         gangliaReporter = buildReporter(ganglia);
+
+        try {
             gangliaReporter.start(REPORT_PERIOD, REPORT_TIME_UNIT);
+        } catch (Exception e) {
+            log.error("Errors during reporting to ganglia, msg: {}" + e.getMessage());
+        }
+
         log.info("Start to report metrics to ganglia server.");
     }
 
@@ -142,7 +148,13 @@ public class DefaultGangliaMetricsReporter implements GangliaMetricsReporter {
     public void notifyMetricsChange() {
         gangliaReporter.stop();
         gangliaReporter = buildReporter(ganglia);
+
+        try {
             gangliaReporter.start(REPORT_PERIOD, REPORT_TIME_UNIT);
+        } catch (Exception e) {
+            log.error("Errors during reporting to ganglia, msg: {}" + e.getMessage());
+        }
+
         log.info("Metric registry has been changed, apply changes.");
     }
 

@@ -125,7 +125,13 @@ public class DefaultGraphiteMetricsReporter implements GraphiteMetricsReporter {
     public void startReport() {
         configGraphite();
         graphiteReporter = buildReporter(graphite);
-        graphiteReporter.start(reportPeriod, REPORT_TIME_UNIT);
+
+        try {
+            graphiteReporter.start(DEFAULT_REPORT_PERIOD, REPORT_TIME_UNIT);
+        } catch (Exception e) {
+            log.error("Errors during reporting to graphite, msg: {}" + e.getMessage());
+        }
+
         log.info("Start to report metrics to graphite server.");
     }
 
@@ -146,7 +152,13 @@ public class DefaultGraphiteMetricsReporter implements GraphiteMetricsReporter {
     public void notifyMetricsChange() {
         graphiteReporter.stop();
         graphiteReporter = buildReporter(graphite);
+
+        try {
             graphiteReporter.start(DEFAULT_REPORT_PERIOD, REPORT_TIME_UNIT);
+        } catch (Exception e) {
+            log.error("Errors during reporting to graphite, msg: {}" + e.getMessage());
+        }
+
         log.info("Metric registry has been changed, apply changes.");
     }
 

@@ -120,7 +120,12 @@ public class DefaultInfluxDbMetricsReporter implements InfluxDbMetricsReporter {
     public void startReport() {
         configSender();
         influxDbReporter = buildReporter(influxDbHttpSender);
+
+        try {
             influxDbReporter.start(REPORT_PERIOD, REPORT_TIME_UNIT);
+        } catch (Exception e) {
+            log.error("Errors during reporting to InfluxDB, msg: {}" + e.getMessage());
+        }
         log.info("Start to report metrics to influxDB.");
     }
 
@@ -142,7 +147,13 @@ public class DefaultInfluxDbMetricsReporter implements InfluxDbMetricsReporter {
     public void notifyMetricsChange() {
         influxDbReporter.stop();
         influxDbReporter = buildReporter(influxDbHttpSender);
+
+        try {
             influxDbReporter.start(REPORT_PERIOD, REPORT_TIME_UNIT);
+        } catch (Exception e) {
+            log.error("Errors during reporting to InfluxDB, msg: {}" + e.getMessage());
+        }
+
         log.info("Metric registry has been changed, apply changes.");
     }