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From davscl...@apache.org
Subject [2/3] camel git commit: CAMEL-9389: camel-metrics - Allow to capture message history easily
Date Fri, 04 Dec 2015 13:16:44 GMT
CAMEL-9389: camel-metrics - Allow to capture message history easily


Project: http://git-wip-us.apache.org/repos/asf/camel/repo
Commit: http://git-wip-us.apache.org/repos/asf/camel/commit/0b00fda9
Tree: http://git-wip-us.apache.org/repos/asf/camel/tree/0b00fda9
Diff: http://git-wip-us.apache.org/repos/asf/camel/diff/0b00fda9

Branch: refs/heads/master
Commit: 0b00fda909700e4f2665e3819eae93ad4c291b73
Parents: 18915b4
Author: Claus Ibsen <davsclaus@apache.org>
Authored: Fri Dec 4 13:02:37 2015 +0000
Committer: Claus Ibsen <davsclaus@apache.org>
Committed: Fri Dec 4 13:02:37 2015 +0000

----------------------------------------------------------------------
 .../messagehistory/MetricsMessageHistory.java   |  66 +++++++
 .../MetricsMessageHistoryFactory.java           | 166 +++++++++++++++++
 .../MetricsMessageHistoryMBean.java             |  29 +++
 .../MetricsMessageHistoryService.java           | 179 +++++++++++++++++++
 .../routepolicy/MetricsRegistryService.java     |   5 +-
 .../metrics/routepolicy/MetricsRoutePolicy.java |   1 -
 .../ManagedMessageHistoryTest.java              | 113 ++++++++++++
 .../MetricsMessageHistoryTest.java              |  75 ++++++++
 8 files changed, 629 insertions(+), 5 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistory.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistory.java
b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistory.java
new file mode 100644
index 0000000..dc290f4
--- /dev/null
+++ b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistory.java
@@ -0,0 +1,66 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.apache.camel.component.metrics.messagehistory;
+
+import java.util.Date;
+
+import com.codahale.metrics.Timer;
+import org.apache.camel.MessageHistory;
+import org.apache.camel.NamedNode;
+
+/**
+ * A codahale metrics based {@link MessageHistory}
+ */
+public class MetricsMessageHistory implements MessageHistory {
+
+    private final String routeId;
+    private final NamedNode namedNode;
+    private final Timer timer;
+    private final Timer.Context context;
+
+    public MetricsMessageHistory(String routeId, NamedNode namedNode, Timer timer) {
+        this.routeId = routeId;
+        this.namedNode = namedNode;
+        this.timer = timer;
+        this.context = timer.time();
+    }
+
+    @Override
+    public String getRouteId() {
+        return routeId;
+    }
+
+    @Override
+    public NamedNode getNode() {
+        return namedNode;
+    }
+
+    @Override
+    public Date getTimestamp() {
+        return null;
+    }
+
+    @Override
+    public long getElapsed() {
+        return timer.getCount();
+    }
+
+    @Override
+    public void nodeProcessingDone() {
+        context.stop();
+    }
+}

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryFactory.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryFactory.java
b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryFactory.java
new file mode 100644
index 0000000..39cf85e
--- /dev/null
+++ b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryFactory.java
@@ -0,0 +1,166 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.apache.camel.component.metrics.messagehistory;
+
+import java.util.Date;
+import java.util.concurrent.TimeUnit;
+
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.Timer;
+import org.apache.camel.CamelContext;
+import org.apache.camel.CamelContextAware;
+import org.apache.camel.MessageHistory;
+import org.apache.camel.NamedNode;
+import org.apache.camel.StaticService;
+import org.apache.camel.spi.MessageHistoryFactory;
+import org.apache.camel.support.ServiceSupport;
+import org.apache.camel.util.ObjectHelper;
+
+/**
+ * A factory to setup and use {@link MetricsMessageHistory} as message history implementation.
+ */
+public class MetricsMessageHistoryFactory extends ServiceSupport implements CamelContextAware,
StaticService, MessageHistoryFactory {
+
+    private CamelContext camelContext;
+    private MetricsMessageHistoryService messageHistoryService;
+    private MetricRegistry metricsRegistry;
+    private boolean useJmx;
+    private String jmxDomain = "org.apache.camel.metrics";
+    private boolean prettyPrint;
+    private TimeUnit rateUnit = TimeUnit.SECONDS;
+    private TimeUnit durationUnit = TimeUnit.MILLISECONDS;
+    private String namePattern = "##name##.##routeId##.##id##.##type##";
+
+    @Override
+    public CamelContext getCamelContext() {
+        return camelContext;
+    }
+
+    @Override
+    public void setCamelContext(CamelContext camelContext) {
+        this.camelContext = camelContext;
+    }
+
+    public MetricRegistry getMetricsRegistry() {
+        return metricsRegistry;
+    }
+
+    /**
+     * To use a specific {@link com.codahale.metrics.MetricRegistry} instance.
+     * <p/>
+     * If no instance has been configured, then Camel will create a shared instance to be
used.
+     */
+    public void setMetricsRegistry(MetricRegistry metricsRegistry) {
+        this.metricsRegistry = metricsRegistry;
+    }
+
+    public boolean isUseJmx() {
+        return useJmx;
+    }
+
+    /**
+     * Whether to use JMX reported to enlist JMX MBeans with the metrics statistics.
+     */
+    public void setUseJmx(boolean useJmx) {
+        this.useJmx = useJmx;
+    }
+
+    public String getJmxDomain() {
+        return jmxDomain;
+    }
+
+    /**
+     * The JMX domain name to use for the enlisted JMX MBeans.
+     */
+    public void setJmxDomain(String jmxDomain) {
+        this.jmxDomain = jmxDomain;
+    }
+
+    public boolean isPrettyPrint() {
+        return prettyPrint;
+    }
+
+    /**
+     * Whether to use pretty print when outputting JSon
+     */
+    public void setPrettyPrint(boolean prettyPrint) {
+        this.prettyPrint = prettyPrint;
+    }
+
+    public TimeUnit getRateUnit() {
+        return rateUnit;
+    }
+
+    /**
+     * Sets the time unit to use for requests per unit (eg requests per second)
+     */
+    public void setRateUnit(TimeUnit rateUnit) {
+        this.rateUnit = rateUnit;
+    }
+
+    public TimeUnit getDurationUnit() {
+        return durationUnit;
+    }
+
+    /**
+     * Sets the time unit to use for timing the duration of processing a message in the route
+     */
+    public void setDurationUnit(TimeUnit durationUnit) {
+        this.durationUnit = durationUnit;
+    }
+
+    @Override
+    public MessageHistory newMessageHistory(String routeId, NamedNode namedNode, Date date)
{
+        Timer timer = metricsRegistry.timer(createName("history", routeId, namedNode.getId()));
+        return new MetricsMessageHistory(routeId, namedNode, timer);
+    }
+
+    private String createName(String type, String routeId, String id) {
+        String name = camelContext.getManagementName() != null ? camelContext.getManagementName()
: camelContext.getName();
+
+        String answer = namePattern;
+        answer = answer.replaceFirst("##name##", name);
+        answer = answer.replaceFirst("##routeId##", routeId);
+        answer = answer.replaceFirst("##id##", id);
+        answer = answer.replaceFirst("##type##", type);
+        return answer;
+    }
+
+    @Override
+    protected void doStart() throws Exception {
+        try {
+            messageHistoryService = camelContext.hasService(MetricsMessageHistoryService.class);
+            if (messageHistoryService == null) {
+                messageHistoryService = new MetricsMessageHistoryService();
+                messageHistoryService.setMetricsRegistry(getMetricsRegistry());
+                messageHistoryService.setUseJmx(isUseJmx());
+                messageHistoryService.setJmxDomain(getJmxDomain());
+                messageHistoryService.setPrettyPrint(isPrettyPrint());
+                messageHistoryService.setRateUnit(getRateUnit());
+                messageHistoryService.setDurationUnit(getDurationUnit());
+                camelContext.addService(messageHistoryService);
+            }
+        } catch (Exception e) {
+            throw ObjectHelper.wrapRuntimeCamelException(e);
+        }
+    }
+
+    @Override
+    protected void doStop() throws Exception {
+        // noop
+    }
+}

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryMBean.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryMBean.java
b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryMBean.java
new file mode 100644
index 0000000..05ae2f6
--- /dev/null
+++ b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryMBean.java
@@ -0,0 +1,29 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.camel.component.metrics.messagehistory;
+
+import org.apache.camel.api.management.ManagedOperation;
+
+public interface MetricsMessageHistoryMBean {
+
+    @ManagedOperation(description = "Dumps the statistics as json")
+    String dumpStatisticsAsJson();
+
+    @ManagedOperation(description = "Dumps the statistics as json using seconds for time
units")
+    String dumpStatisticsAsJsonTimeUnitSeconds();
+
+}

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryService.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryService.java
b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryService.java
new file mode 100644
index 0000000..76aaef4
--- /dev/null
+++ b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryService.java
@@ -0,0 +1,179 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.apache.camel.component.metrics.messagehistory;
+
+import java.util.concurrent.TimeUnit;
+import javax.management.MBeanServer;
+
+import com.codahale.metrics.JmxReporter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.json.MetricsModule;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectWriter;
+import org.apache.camel.CamelContext;
+import org.apache.camel.CamelContextAware;
+import org.apache.camel.StaticService;
+import org.apache.camel.api.management.ManagedResource;
+import org.apache.camel.component.metrics.MetricsComponent;
+import org.apache.camel.component.metrics.routepolicy.MetricsRegistryMBean;
+import org.apache.camel.spi.ManagementAgent;
+import org.apache.camel.spi.Registry;
+import org.apache.camel.support.ServiceSupport;
+import org.apache.camel.util.ObjectHelper;
+
+/**
+ * Service holding the {@link MetricsMessageHistory} which registers all message history
metrics.
+ */
+@ManagedResource(description = "MetricsMessageHistory")
+public final class MetricsMessageHistoryService extends ServiceSupport implements CamelContextAware,
StaticService, MetricsRegistryMBean {
+
+    private CamelContext camelContext;
+    private MetricRegistry metricsRegistry;
+    private JmxReporter reporter;
+    private boolean useJmx;
+    private String jmxDomain = "org.apache.camel.metrics";
+    private boolean prettyPrint;
+    private TimeUnit rateUnit = TimeUnit.SECONDS;
+    private TimeUnit durationUnit = TimeUnit.MILLISECONDS;
+    private transient ObjectMapper mapper;
+    private transient ObjectMapper secondsMapper;
+
+    public MetricRegistry getMetricsRegistry() {
+        return metricsRegistry;
+    }
+
+    public void setMetricsRegistry(MetricRegistry metricsRegistry) {
+        this.metricsRegistry = metricsRegistry;
+    }
+
+    public CamelContext getCamelContext() {
+        return camelContext;
+    }
+
+    public void setCamelContext(CamelContext camelContext) {
+        this.camelContext = camelContext;
+    }
+
+    public boolean isUseJmx() {
+        return useJmx;
+    }
+
+    public void setUseJmx(boolean useJmx) {
+        this.useJmx = useJmx;
+    }
+
+    public String getJmxDomain() {
+        return jmxDomain;
+    }
+
+    public void setJmxDomain(String jmxDomain) {
+        this.jmxDomain = jmxDomain;
+    }
+
+    public boolean isPrettyPrint() {
+        return prettyPrint;
+    }
+
+    public void setPrettyPrint(boolean prettyPrint) {
+        this.prettyPrint = prettyPrint;
+    }
+
+    public TimeUnit getRateUnit() {
+        return rateUnit;
+    }
+
+    public void setRateUnit(TimeUnit rateUnit) {
+        this.rateUnit = rateUnit;
+    }
+
+    public TimeUnit getDurationUnit() {
+        return durationUnit;
+    }
+
+    public void setDurationUnit(TimeUnit durationUnit) {
+        this.durationUnit = durationUnit;
+    }
+
+    @Override
+    protected void doStart() throws Exception {
+        if (metricsRegistry == null) {
+            Registry camelRegistry = getCamelContext().getRegistry();
+            metricsRegistry = camelRegistry.lookupByNameAndType(MetricsComponent.METRIC_REGISTRY_NAME,
MetricRegistry.class);
+            // create a new metricsRegistry by default
+            if (metricsRegistry == null) {
+                metricsRegistry = new MetricRegistry();
+            }
+        }
+
+        if (useJmx) {
+            ManagementAgent agent = getCamelContext().getManagementStrategy().getManagementAgent();
+            if (agent != null) {
+                MBeanServer server = agent.getMBeanServer();
+                if (server != null) {
+                    reporter = JmxReporter.forRegistry(metricsRegistry).registerWith(server).inDomain(jmxDomain).build();
+                    reporter.start();
+                }
+            } else {
+                throw new IllegalStateException("CamelContext has not enabled JMX");
+            }
+        }
+
+        // json mapper
+        this.mapper = new ObjectMapper().registerModule(new MetricsModule(getRateUnit(),
getDurationUnit(), false));
+        if (getRateUnit() == TimeUnit.SECONDS && getDurationUnit() == TimeUnit.SECONDS)
{
+            // they both use same units so reuse
+            this.secondsMapper = this.mapper;
+        } else {
+            this.secondsMapper = new ObjectMapper().registerModule(new MetricsModule(TimeUnit.SECONDS,
TimeUnit.SECONDS, false));
+        }
+    }
+
+    @Override
+    protected void doStop() throws Exception {
+        if (reporter != null) {
+            reporter.stop();
+            reporter = null;
+        }
+    }
+
+    @Override
+    public String dumpStatisticsAsJson() {
+        ObjectWriter writer = mapper.writer();
+        if (isPrettyPrint()) {
+            writer = writer.withDefaultPrettyPrinter();
+        }
+        try {
+            return writer.writeValueAsString(getMetricsRegistry());
+        } catch (JsonProcessingException e) {
+            throw ObjectHelper.wrapRuntimeCamelException(e);
+        }
+    }
+
+    public String dumpStatisticsAsJsonTimeUnitSeconds() {
+        ObjectWriter writer = secondsMapper.writer();
+        if (isPrettyPrint()) {
+            writer = writer.withDefaultPrettyPrinter();
+        }
+        try {
+            return writer.writeValueAsString(getMetricsRegistry());
+        } catch (JsonProcessingException e) {
+            throw ObjectHelper.wrapRuntimeCamelException(e);
+        }
+    }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRegistryService.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRegistryService.java
b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRegistryService.java
index 6f87a3d..6fe782a 100644
--- a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRegistryService.java
+++ b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRegistryService.java
@@ -108,8 +108,6 @@ public final class MetricsRegistryService extends ServiceSupport implements
Came
     public void setDurationUnit(TimeUnit durationUnit) {
         this.durationUnit = durationUnit;
     }
-    
-    
 
     @Override
     protected void doStart() throws Exception {
@@ -177,6 +175,5 @@ public final class MetricsRegistryService extends ServiceSupport implements
Came
             throw ObjectHelper.wrapRuntimeCamelException(e);
         }
     }
-    
-   
+
 }

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRoutePolicy.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRoutePolicy.java
b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRoutePolicy.java
index 4269f01..c921e83 100644
--- a/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRoutePolicy.java
+++ b/components/camel-metrics/src/main/java/org/apache/camel/component/metrics/routepolicy/MetricsRoutePolicy.java
@@ -164,7 +164,6 @@ public class MetricsRoutePolicy extends RoutePolicySupport {
         answer = answer.replaceFirst("##name##", name);
         answer = answer.replaceFirst("##routeId##", route.getId());
         answer = answer.replaceFirst("##type##", type);
-        // use dot to separate context from route, and dot for the type name
         return answer;
     }
 

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/ManagedMessageHistoryTest.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/ManagedMessageHistoryTest.java
b/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/ManagedMessageHistoryTest.java
new file mode 100644
index 0000000..76919dc
--- /dev/null
+++ b/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/ManagedMessageHistoryTest.java
@@ -0,0 +1,113 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.camel.component.metrics.messagehistory;
+
+import java.util.Set;
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
+
+import com.codahale.metrics.MetricRegistry;
+import org.apache.camel.CamelContext;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.component.metrics.MetricsComponent;
+import org.apache.camel.impl.JndiRegistry;
+import org.apache.camel.test.junit4.CamelTestSupport;
+import org.junit.Test;
+
+public class ManagedMessageHistoryTest extends CamelTestSupport {
+
+    private MetricRegistry metricRegistry = new MetricRegistry();
+
+    @Override
+    protected boolean useJmx() {
+        return true;
+    }
+
+    protected MBeanServer getMBeanServer() {
+        return context.getManagementStrategy().getManagementAgent().getMBeanServer();
+    }
+    
+    // Setup the common MetricsRegistry for MetricsComponent and MetricsMessageHistoryFactory
to use
+    @Override
+    protected JndiRegistry createRegistry() throws Exception {
+        JndiRegistry registry = super.createRegistry();
+        registry.bind(MetricsComponent.METRIC_REGISTRY_NAME, metricRegistry);
+        return registry;
+    }
+
+    @Override
+    protected CamelContext createCamelContext() throws Exception {
+        CamelContext context = super.createCamelContext();
+
+        MetricsMessageHistoryFactory factory = new MetricsMessageHistoryFactory();
+        factory.setUseJmx(true);
+        factory.setPrettyPrint(true);
+        factory.setMetricsRegistry(metricRegistry);
+        context.setMessageHistoryFactory(factory);
+
+        return context;
+    }
+
+    @Test
+    public void testMetricsRoutePolicy() throws Exception {
+        getMockEndpoint("mock:foo").expectedMessageCount(5);
+        getMockEndpoint("mock:bar").expectedMessageCount(5);
+        getMockEndpoint("mock:baz").expectedMessageCount(5);
+
+        for (int i = 0; i < 10; i++) {
+            if (i % 2 == 0) {
+                template.sendBody("seda:foo", "Hello " + i);
+            } else {
+                template.sendBody("seda:bar", "Hello " + i);
+            }
+        }
+
+        assertMockEndpointsSatisfied();
+
+        // there should be 3 names
+        assertEquals(3, metricRegistry.getNames().size());
+
+        // there should be 3 mbeans
+        Set<ObjectName> set = getMBeanServer().queryNames(new ObjectName("org.apache.camel.metrics:*"),
null);
+        assertEquals(3, set.size());
+
+        String name = String.format("org.apache.camel:context=%s,type=services,name=MetricsMessageHistoryService",
context.getManagementName());
+        ObjectName on = ObjectName.getInstance(name);
+        String json = (String) getMBeanServer().invoke(on, "dumpStatisticsAsJson", null,
null);
+        assertNotNull(json);
+        log.info(json);
+        
+        assertTrue(json.contains("foo.history"));
+        assertTrue(json.contains("bar.history"));
+        assertTrue(json.contains("baz.history"));
+    }
+
+    @Override
+    protected RouteBuilder createRouteBuilder() throws Exception {
+        return new RouteBuilder() {
+            @Override
+            public void configure() throws Exception {
+                from("seda:foo")
+                        .to("mock:foo").id("foo");
+
+                from("seda:bar")
+                        .to("mock:bar").id("bar")
+                        .to("mock:baz").id("baz");
+            }
+        };
+    }
+}

http://git-wip-us.apache.org/repos/asf/camel/blob/0b00fda9/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryTest.java
----------------------------------------------------------------------
diff --git a/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryTest.java
b/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryTest.java
new file mode 100644
index 0000000..17279c6
--- /dev/null
+++ b/components/camel-metrics/src/test/java/org/apache/camel/component/metrics/messagehistory/MetricsMessageHistoryTest.java
@@ -0,0 +1,75 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.camel.component.metrics.messagehistory;
+
+import com.codahale.metrics.MetricRegistry;
+import org.apache.camel.CamelContext;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.test.junit4.CamelTestSupport;
+import org.junit.Test;
+
+public class MetricsMessageHistoryTest extends CamelTestSupport {
+
+    private MetricRegistry registry = new MetricRegistry();
+
+    @Override
+    protected CamelContext createCamelContext() throws Exception {
+        CamelContext context = super.createCamelContext();
+
+        MetricsMessageHistoryFactory factory = new MetricsMessageHistoryFactory();
+        factory.setUseJmx(false);
+        factory.setMetricsRegistry(registry);
+        context.setMessageHistoryFactory(factory);
+
+        return context;
+    }
+
+    @Test
+    public void testMetricsRoutePolicy() throws Exception {
+        getMockEndpoint("mock:foo").expectedMessageCount(5);
+        getMockEndpoint("mock:bar").expectedMessageCount(5);
+        getMockEndpoint("mock:baz").expectedMessageCount(5);
+
+        for (int i = 0; i < 10; i++) {
+            if (i % 2 == 0) {
+                template.sendBody("seda:foo", "Hello " + i);
+            } else {
+                template.sendBody("seda:bar", "Hello " + i);
+            }
+        }
+
+        assertMockEndpointsSatisfied();
+
+        // there should be 3 names
+        assertEquals(3, registry.getNames().size());
+    }
+
+    @Override
+    protected RouteBuilder createRouteBuilder() throws Exception {
+        return new RouteBuilder() {
+            @Override
+            public void configure() throws Exception {
+                from("seda:foo")
+                    .to("mock:foo");
+
+                from("seda:bar")
+                    .to("mock:bar")
+                    .to("mock:baz");
+            }
+        };
+    }
+}


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