[ONOS-4176] Implement influxdb reporter for backing up metrics

Change-Id: If899955c06cc5a5619a529178be8eb1bffa5b498

+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!--
+  ~ Copyright 2016 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.
+  -->
+<features xmlns="http://karaf.apache.org/xmlns/features/v1.2.0" name="${project.artifactId}-${project.version}">
+    <feature name="${project.artifactId}" version="${project.version}"
+             description="${project.description}">
+        <feature>onos-api</feature>
+        <bundle>mvn:${project.groupId}/onos-app-influxdb/${project.version}</bundle>
+        <bundle>wrap:mvn:com.izettle/metrics-influxdb/1.1.1$Bundle-SymbolicName=metrics-influxdb&amp;Bundle-Version=1.1.1</bundle>
+        <bundle>mvn:commons-codec/commons-codec/1.10</bundle>
+    </feature>
+</features>

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2016 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>onos-apps</artifactId>
+        <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>onos-app-influxdb</artifactId>
+    <packaging>bundle</packaging>
+
+    <description>Performance metric service reporter and retriever for influxDB</description>
+
+    <properties>
+        <onos.app.name>org.onosproject.influxdbmetrics</onos.app.name>
+        <onos.app.title>InfluxDB Report and Query App</onos.app.title>
+        <onos.app.category>Monitoring</onos.app.category>
+        <onos.app.url>http://onosproject.org</onos.app.url>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.compendium</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onlab-misc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-cli</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.karaf.shell</groupId>
+            <artifactId>org.apache.karaf.shell.console</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.apache.felix.scr.annotations</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard.metrics</groupId>
+            <artifactId>metrics-core</artifactId>
+            <version>3.1.2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.izettle</groupId>
+            <artifactId>metrics-influxdb</artifactId>
+            <version>1.1.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-api</artifactId>
+            <version>${project.version}</version>
+            <classifier>tests</classifier>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onlab-junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.easymock</groupId>
+            <artifactId>easymock</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>

+/*
+ * Copyright 2016 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.influxdbmetrics;
+
+import com.codahale.metrics.MetricRegistry;
+import com.izettle.metrics.influxdb.InfluxDbHttpSender;
+import com.izettle.metrics.influxdb.InfluxDbReporter;
+import org.apache.commons.lang.StringUtils;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Modified;
+import org.apache.felix.scr.annotations.Property;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onlab.metrics.MetricsService;
+import org.onlab.util.Tools;
+import org.onosproject.cfg.ComponentConfigService;
+import org.onosproject.cluster.ClusterService;
+import org.onosproject.cluster.ControllerNode;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.osgi.service.component.ComponentContext;
+import org.slf4j.Logger;
+
+import java.util.Dictionary;
+import java.util.concurrent.TimeUnit;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * A Metric reporter that reports all metrics value to influxDB server.
+ */
+@Component(immediate = true)
+public class InfluxDbMetricsReporter {
+    private final Logger log = getLogger(getClass());
+
+    private static final int REPORT_PERIOD = 1;
+    private static final TimeUnit REPORT_TIME_UNIT = TimeUnit.MINUTES;
+
+    private static final String DEFAULT_PROTOCOL = "http";
+    private static final String DEFAULT_ADDRESS = "localhost";
+    private static final int DEFAULT_PORT = 8086;
+    private static final String DEFAULT_METRIC_NAMES = "default";
+    private static final String DEFAULT_DATABASE = "onos";
+    private static final String DEFAULT_USERNAME = "onos";
+    private static final String DEFAULT_PASSWORD = "onos.password";
+    private static final String SEPARATOR = ":";
+    private static final int DEFAULT_CONN_TIMEOUT = 1000;
+    private static final int DEFAULT_READ_TIMEOUT = 1000;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CoreService coreService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected MetricsService metricsService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ComponentConfigService cfgService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected ClusterService clusterService;
+
+    @Property(name = "monitorAll", boolValue = true,
+            label = "Enable to monitor all of metrics stored in metric registry " +
+                    "default is true")
+    protected boolean monitorAll = true;
+
+    @Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
+            label = "Names of metric to be monitored in third party monitoring " +
+                    "server; default metric names are 'default'")
+    protected String metricNames = DEFAULT_METRIC_NAMES;
+
+    @Property(name = "address", value = DEFAULT_ADDRESS,
+            label = "IP address of influxDB server; " +
+                    "default is localhost")
+    protected String address = DEFAULT_ADDRESS;
+
+    @Property(name = "port", intValue = DEFAULT_PORT,
+            label = "Port number of influxDB server; " +
+                    "default is 8086")
+    protected int port = DEFAULT_PORT;
+
+    @Property(name = "database", value = DEFAULT_DATABASE,
+            label = "Database name of influxDB server; " +
+                    "default is onos")
+    protected String database = DEFAULT_DATABASE;
+
+    @Property(name = "username", value = DEFAULT_USERNAME,
+            label = "Username of influxDB server; default is onos")
+    protected String username = DEFAULT_USERNAME;
+
+    @Property(name = "password", value = DEFAULT_PASSWORD,
+            label = "Password of influxDB server; default is onos.password")
+    protected String password = DEFAULT_PASSWORD;
+
+    private ApplicationId appId;
+    private InfluxDbReporter influxDbReporter;
+    private InfluxDbHttpSender influxDbHttpSender;
+
+    @Activate
+    public void activate() {
+        cfgService.registerProperties(getClass());
+        appId = coreService.registerApplication("org.onosproject.influxdbmetrics");
+
+        startReport();
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        cfgService.unregisterProperties(getClass(), false);
+
+        stopReport();
+        log.info("Stopped");
+    }
+
+    @Modified
+    public void modified(ComponentContext context) {
+        readComponentConfiguration(context);
+        restartReport();
+    }
+
+    protected void startReport() {
+        try {
+            influxDbHttpSender = new InfluxDbHttpSender(DEFAULT_PROTOCOL, address,
+                    port, database, username + SEPARATOR + password, REPORT_TIME_UNIT,
+                    DEFAULT_CONN_TIMEOUT, DEFAULT_READ_TIMEOUT);
+            MetricRegistry mr = metricsService.getMetricRegistry();
+            influxDbReporter = InfluxDbReporter.forRegistry(addHostPrefix(filter(mr)))
+                    .convertRatesTo(TimeUnit.SECONDS)
+                    .convertDurationsTo(TimeUnit.MILLISECONDS)
+                    .build(influxDbHttpSender);
+            influxDbReporter.start(REPORT_PERIOD, REPORT_TIME_UNIT);
+            log.info("Start to report metrics to influxDB.");
+        } catch (Exception e) {
+            log.error("Fail to connect to given influxDB server!");
+        }
+    }
+
+    protected void stopReport() {
+        influxDbReporter.stop();
+        influxDbHttpSender = null;
+        influxDbReporter = null;
+        log.info("Stop reporting metrics to influxDB.");
+    }
+
+    protected void restartReport() {
+        stopReport();
+        startReport();
+    }
+
+    /**
+     * Filters the metrics to only include a set of the given metrics.
+     *
+     * @param metricRegistry original metric registry
+     * @return filtered metric registry
+     */
+    protected MetricRegistry filter(MetricRegistry metricRegistry) {
+        if (!monitorAll) {
+            final MetricRegistry filtered = new MetricRegistry();
+            metricRegistry.getNames().stream().filter(name ->
+                    containsName(name, metricNames)).forEach(name ->
+                    filtered.register(name, metricRegistry.getMetrics().get(name)));
+            return filtered;
+        } else {
+            return metricRegistry;
+        }
+    }
+
+    /**
+     * Appends node IP prefix to all performance metrics.
+     *
+     * @param metricRegistry original metric registry
+     * @return prefix added metric registry
+     */
+    protected MetricRegistry addHostPrefix(MetricRegistry metricRegistry) {
+        MetricRegistry moddedRegistry = new MetricRegistry();
+        ControllerNode node = clusterService.getLocalNode();
+        String prefix = node.id().id() + ".";
+        metricRegistry.getNames().stream().forEach(name ->
+                moddedRegistry.register(prefix + name, metricRegistry.getMetrics().get(name)));
+
+        return moddedRegistry;
+    }
+
+    /**
+     * Looks up whether the metric name contains the given prefix keywords.
+     * Note that the keywords are separated with comma as delimiter.
+     *
+     * @param full the original metric name that to be compared with
+     * @param prefixes the prefix keywords that are matched against with the metric name
+     * @return boolean value that denotes whether the metric name starts with the given prefix
+     */
+    protected boolean containsName(String full, String prefixes) {
+        String[] prefixArray = StringUtils.split(prefixes, ",");
+        for (String prefix : prefixArray) {
+            if (StringUtils.startsWith(full, StringUtils.trimToEmpty(prefix))) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Extracts properties from the component configuration context.
+     *
+     * @param context the component context
+     */
+    private void readComponentConfiguration(ComponentContext context) {
+        Dictionary<?, ?> properties = context.getProperties();
+
+        String addressStr = Tools.get(properties, "address");
+        address = addressStr != null ? addressStr : DEFAULT_ADDRESS;
+        log.info("Configured. InfluxDB server address is {}", address);
+
+        String metricNameStr = Tools.get(properties, "metricNames");
+        metricNames = metricNameStr != null ? metricNameStr : DEFAULT_METRIC_NAMES;
+        log.info("Configured. Metric name is {}", metricNames);
+
+        String databaseStr = Tools.get(properties, "database");
+        database = databaseStr != null ? databaseStr : DEFAULT_DATABASE;
+        log.info("Configured. InfluxDB server database is {}", database);
+
+        String usernameStr = Tools.get(properties, "username");
+        username = usernameStr != null ? usernameStr : DEFAULT_USERNAME;
+        log.info("Configured. InfluxDB server username is {}", username);
+
+        String passwordStr = Tools.get(properties, "password");
+        password = passwordStr != null ? passwordStr : DEFAULT_PASSWORD;
+        log.info("Configured. InfluxDB server password is {}", password);
+
+        Integer portConfigured = Tools.getIntegerProperty(properties, "port");
+        if (portConfigured == null) {
+            port = DEFAULT_PORT;
+            log.info("InfluxDB port is not configured, default value is {}", port);
+        } else {
+            port = portConfigured;
+            log.info("Configured. InfluxDB port is configured to {}", port);
+        }
+
+        Boolean monitorAllEnabled = Tools.isPropertyEnabled(properties, "monitorAll");
+        if (monitorAllEnabled == null) {
+            log.info("Monitor all metrics is not configured, " +
+                    "using current value of {}", monitorAll);
+        } else {
+            monitorAll = monitorAllEnabled;
+            log.info("Configured. Monitor all metrics is {}",
+                    monitorAll ? "enabled" : "disabled");
+        }
+    }
+}

+/*
+ * Copyright 2016 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.
+ */
+
+/**
+ * Application that provides capability to report and retrieve metrics
+ * to and from influx database.
+ */
+package org.onosproject.influxdbmetrics;

+/*
+ * Copyright 2016 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.influxdbmetrics;
+
+import com.codahale.metrics.Counter;
+import com.codahale.metrics.Gauge;
+import com.codahale.metrics.Histogram;
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.Metric;
+import com.codahale.metrics.MetricFilter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.Timer;
+import org.junit.Before;
+import org.onlab.metrics.MetricsComponent;
+import org.onlab.metrics.MetricsFeature;
+import org.onlab.metrics.MetricsService;
+import org.onosproject.cfg.ComponentConfigAdapter;
+import org.onosproject.cluster.ClusterServiceAdapter;
+import org.onosproject.core.CoreServiceAdapter;
+
+import java.util.Map;
+
+/**
+ * Unit tests for influxDB metrics reporter.
+ */
+public class InfluxDbMetricsReporterTest {
+
+    private InfluxDbMetricsReporter influxReporter;
+
+    /**
+     * Sets up the services required by influxDB metrics reporter.
+     */
+    @Before
+    public void setUp() {
+        influxReporter = new InfluxDbMetricsReporter();
+        influxReporter.coreService = new CoreServiceAdapter();
+        influxReporter.cfgService = new ComponentConfigAdapter();
+        influxReporter.clusterService = new ClusterServiceAdapter();
+        influxReporter.metricsService = new TestMetricsService();
+        influxReporter.activate();
+    }
+
+    /**
+     * Tears down influxDB metrics reporter.
+     */
+    public void tearDown() {
+        influxReporter.deactivate();
+    }
+
+    private class TestMetricsService implements MetricsService {
+
+        @Override
+        public MetricsComponent registerComponent(String name) {
+            return null;
+        }
+
+        @Override
+        public MetricRegistry getMetricRegistry() {
+            return null;
+        }
+
+        @Override
+        public Counter createCounter(MetricsComponent component,
+                                     MetricsFeature feature, String metricName) {
+            return null;
+        }
+
+        @Override
+        public Histogram createHistogram(MetricsComponent component,
+                                         MetricsFeature feature, String metricName) {
+            return null;
+        }
+
+        @Override
+        public Timer createTimer(MetricsComponent component,
+                                 MetricsFeature feature, String metricName) {
+            return null;
+        }
+
+        @Override
+        public Meter createMeter(MetricsComponent component,
+                                 MetricsFeature feature, String metricName) {
+            return null;
+        }
+
+        @Override
+        public <T extends Metric> T registerMetric(MetricsComponent component,
+                                                   MetricsFeature feature,
+                                                   String metricName, T metric) {
+            return null;
+        }
+
+        @Override
+        public boolean removeMetric(MetricsComponent component,
+                                    MetricsFeature feature, String metricName) {
+            return false;
+        }
+
+        @Override
+        public Map<String, Timer> getTimers(MetricFilter filter) {
+            return null;
+        }
+
+        @Override
+        public Map<String, Gauge> getGauges(MetricFilter filter) {
+            return null;
+        }
+
+        @Override
+        public Map<String, Counter> getCounters(MetricFilter filter) {
+            return null;
+        }
+
+        @Override
+        public Map<String, Meter> getMeters(MetricFilter filter) {
+            return null;
+        }
+
+        @Override
+        public Map<String, Histogram> getHistograms(MetricFilter filter) {
+            return null;
+        }
+
+        @Override
+        public Map<String, Metric> getMetrics() {
+            return null;
+        }
+
+        @Override
+        public void removeMatching(MetricFilter filter) {
+        }
+    }
+}

@@ -70,6 +70,7 @@
         <module>openstacknode</module>
         <module>openstacknode</module>
         <module>openstacknetworking</module>
         <module>openstacknetworking</module>
         <module>openstackinterface</module>
         <module>openstackinterface</module>
+        <module>influxdbmetrics</module>
   </modules>
   </modules>
 
 
     <properties>
     <properties>