Author: rmannibucau
Date: Mon Aug 12 10:57:22 2013
New Revision: 1513101
URL: http://svn.apache.org/r1513101
Log:
adding session listener to monitor sessions
Added:
commons/sandbox/monitoring/trunk/src/site/markdown/web.md
- copied, changed from r1513099,
commons/sandbox/monitoring/trunk/src/site/markdown/reporting.md
commons/sandbox/monitoring/trunk/web/src/main/java/org/apache/commons/monitoring/web/session/
commons/sandbox/monitoring/trunk/web/src/main/java/org/apache/commons/monitoring/web/session/MonitoringSessionListener.java
Modified:
commons/sandbox/monitoring/trunk/src/site/site.xml
Copied: commons/sandbox/monitoring/trunk/src/site/markdown/web.md (from
r1513099, commons/sandbox/monitoring/trunk/src/site/markdown/reporting.md)
URL:
http://svn.apache.org/viewvc/commons/sandbox/monitoring/trunk/src/site/markdown/web.md?p2=commons/sandbox/monitoring/trunk/src/site/markdown/web.md&p1=commons/sandbox/monitoring/trunk/src/site/markdown/reporting.md&r1=1513099&r2=1513101&rev=1513101&view=diff
==============================================================================
--- commons/sandbox/monitoring/trunk/src/site/markdown/reporting.md (original)
+++ commons/sandbox/monitoring/trunk/src/site/markdown/web.md Mon Aug 12
10:57:22 2013
@@ -16,69 +16,36 @@ KIND, either express or implied. See th
specific language governing permissions and limitations
under the License.
-->
-## Reporting module
+## Web module
-Reporting module provides a lightweight GUI to visualize monitoring
information.
+Reporting module provides web listener to monitor servlet containers.
## Installation
-### The webapp
-commons-monitoring-reporting is available as a webapp (.war) so you can just
drop it in your servlet container.
+Add commons-monitoring-web to your webapp.
-Note 1: commons-monitoring-core is not provided and should be in the container.
-Note 2: if you use commons-monitoring-jdbc put it in the container too.
+## Monitor requests
-### Embeded in your web application
+Simply add the filter
`org.apache.commons.monitoring.web.servlet.MonitoringFilter`:
-Just adding commons-monitoring-reporting jar (classifier `classes` if you use
maven) in your application
-you can embed it. You'll need to update your web.xml to declare the monitoring
filter:
+ <filter>
+ <filter-name>monitoring-request</filter-name>
+
<filter-class>org.apache.commons.monitoring.web.servlet.MonitoringFilter</filter-class>
+ </filter>
+ <filter-mapping>
+ <filter-name>monitoring-request</filter-name>
+ <url-pattern>/*</url-pattern>
+ </filter-mapping>
- <web-app xmlns="http://java.sun.com/xml/ns/javaee";
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
- xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
- version="2.5">
+## Monitor sessions
- <listener>
-
<listener-class>org.apache.commons.monitoring.reporting.web.listener.MonitoringListener</listener-class>
- </listener>
+Simply add the listener
`org.apache.commons.monitoring.web.servlet.MonitoringFilter`:
- <filter>
- <filter-name>Monitoring</filter-name>
-
<filter-class>org.apache.commons.monitoring.reporting.web.MonitoringController</filter-class>
- <init-param> <!-- should match your filter mapping base -->
- <param-name>monitoring-mapping</param-name>
- <param-value>/monitoring/</param-value>
- </init-param>
- </filter>
+ <listener>
+
<listener-class>org.apache.commons.monitoring.web.servlet.MonitoringFilter</listener-class>
+ </listener>
- <filter-mapping>
- <filter-name>Monitoring</filter-name>
- <url-pattern>/monitoring/*</url-pattern>
- </filter-mapping>
- </web-app>
+## Accessing results
-## Usage
-
-Once started you'll arrive on the home page which should look like:
-
-
-
-By default you have three activated plugins:
-
-* Report: view to work with counter data
-* JMX: access to MBeans (read attribute, invoke operations)
-* JVM: basic measure of CPU and used heap memory
-
-### Report
-
-
-
-### JMX
-
-
-
-
-### JVM
-
-
+If you installed the reporting webapp you should be able to get the result
under the report tab.
\ No newline at end of file
Modified: commons/sandbox/monitoring/trunk/src/site/site.xml
URL:
http://svn.apache.org/viewvc/commons/sandbox/monitoring/trunk/src/site/site.xml?rev=1513101&r1=1513100&r2=1513101&view=diff
==============================================================================
--- commons/sandbox/monitoring/trunk/src/site/site.xml (original)
+++ commons/sandbox/monitoring/trunk/src/site/site.xml Mon Aug 12 10:57:22 2013
@@ -51,6 +51,7 @@
<item name="Reporting" href="/reporting.html"/>
<item name="Plugins" href="/plugins.html"/>
<item name="JTA" href="/jta.html"/>
+ <item name="Web" href="/web.html"/>
</menu>
</body>
</project>
Added:
commons/sandbox/monitoring/trunk/web/src/main/java/org/apache/commons/monitoring/web/session/MonitoringSessionListener.java
URL:
http://svn.apache.org/viewvc/commons/sandbox/monitoring/trunk/web/src/main/java/org/apache/commons/monitoring/web/session/MonitoringSessionListener.java?rev=1513101&view=auto
==============================================================================
---
commons/sandbox/monitoring/trunk/web/src/main/java/org/apache/commons/monitoring/web/session/MonitoringSessionListener.java
(added)
+++
commons/sandbox/monitoring/trunk/web/src/main/java/org/apache/commons/monitoring/web/session/MonitoringSessionListener.java
Mon Aug 12 10:57:22 2013
@@ -0,0 +1,52 @@
+/*
+ * 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.commons.monitoring.web.session;
+
+import org.apache.commons.monitoring.Role;
+import org.apache.commons.monitoring.counters.Counter;
+import org.apache.commons.monitoring.counters.Unit;
+import org.apache.commons.monitoring.repositories.Repository;
+import org.apache.commons.monitoring.stopwatches.StopWatch;
+
+import javax.servlet.http.HttpSessionEvent;
+import javax.servlet.http.HttpSessionListener;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class MonitoringSessionListener implements HttpSessionListener {
+ private final Map<String, StopWatch> watches = new
ConcurrentHashMap<String, StopWatch>();
+
+ private final Counter counter;
+
+ public MonitoringSessionListener() {
+ counter = Repository.INSTANCE.getCounter(new Counter.Key(new
Role("session", Unit.UNARY), "session"));
+ }
+
+ @Override
+ public void sessionCreated(final HttpSessionEvent httpSessionEvent) {
+ final StopWatch watch = Repository.INSTANCE.start(counter);
+ watches.put(httpSessionEvent.getSession().getId(), watch);
+ }
+
+ @Override
+ public void sessionDestroyed(final HttpSessionEvent httpSessionEvent) {
+ final StopWatch watch =
watches.remove(httpSessionEvent.getSession().getId());
+ if (watch != null) {
+ watch.stop();
+ }
+ }
+}
