Author: donsez
Date: Tue Jan 15 06:22:23 2008
New Revision: 612122
URL: http://svn.apache.org/viewvc?rev=612122&view=rev
Log:
creation of the "VM Free Memory Producer" bundle : a sample Producer that poll
objects containing the VM free memory
Added:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/pom.xml (with
props)
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/Configuration.java
(with props)
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/VMFreeMemoryProducer.java
(with props)
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/config.properties
(with props)
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/site/
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/site/readme.html
(with props)
Added: felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/pom.xml
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/pom.xml?rev=612122&view=auto
==============================================================================
--- felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/pom.xml (added)
+++ felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/pom.xml Tue Jan 15
06:22:23 2008
@@ -0,0 +1,72 @@
+<!--
+ 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.
+-->
+<project>
+ <properties>
+
<repositoryLocation>http://people.apache.org/~donsez/dev/felix/sandbox/</repositoryLocation>
+ <description>VM free memory producer : a example for the Wire
Admin service.</description>
+ </properties>
+
+ <modelVersion>4.0.0</modelVersion>
+ <packaging>bundle</packaging>
+ <name>VM Free Memory Producer</name>
+ <description>${description}</description>
+ <groupId>org.apache.felix.sandbox</groupId>
+ <version>0.1.0-SNAPSHOT</version>
+ <artifactId>wireadmin.sample.vmfreememproducer</artifactId>
+
+ <dependencies>
+
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.osgi.core</artifactId>
+ <version>1.1.0-SNAPSHOT</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.osgi.compendium</artifactId>
+ <version>0.9.0-SNAPSHOT</version>
+ </dependency>
+
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-bundle-plugin</artifactId>
+ <extensions>true</extensions>
+ <configuration>
+ <instructions>
+ <Import-Package>*</Import-Package>
+ <Private-Package>
+ ${pom.groupId}.${pom.artifactId},
+ ${pom.groupId}.util
+ </Private-Package>
+
<Bundle-Activator>${pom.groupId}.${pom.artifactId}.VMFreeMemoryProducer</Bundle-Activator>
+
+ <!-- docs in
http://cwiki.apache.org/FELIX/bundle-plugin-for-maven-bnd.html and
http://cwiki.apache.org/FELIX/osgi-plugin-for-maven-2.html -->
+
<Export-Service>org.osgi.service.wireadmin.Producer</Export-Service>
+
+ </instructions>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+</project>
Propchange: felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/pom.xml
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/Configuration.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/Configuration.java?rev=612122&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/Configuration.java
(added)
+++
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/Configuration.java
Tue Jan 15 06:22:23 2008
@@ -0,0 +1,194 @@
+/*
+ * 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.felix.sandbox.util;
+
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.util.Hashtable;
+import java.util.Map;
+import java.util.Properties;
+import java.util.StringTokenizer;
+import java.util.Vector;
+
+/**
+ * this class provides utilities methods for bundle configuration.
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ */
+public class Configuration {
+ static String DEFAULT_PROPERTIES_FILE = "config.properties";
+
+
+ /**
+ * loads properties from a file
+ *
+ [EMAIL PROTECTED] filename the properties file name
+ [EMAIL PROTECTED] the properties
+ */
+ public static Properties loadProperties(String filename) {
+ if (filename == null) {
+ filename =
System.getProperty("fr.imag.adele.bundle.util.configuration.file",
DEFAULT_PROPERTIES_FILE);
+ }
+ try {
+ return loadProperties(new FileInputStream(filename));
+ } catch (Exception ex) {
+ ex.printStackTrace();
+ return null;
+ }
+ }
+
+
+ /**
+ * loads properties from a input stream
+ *
+ [EMAIL PROTECTED] in the imput stream
+ [EMAIL PROTECTED] the properties
+ */
+ public static Properties loadProperties(InputStream in) {
+ Properties prop = new Properties();
+ try {
+ prop.load(in);
+ } catch (Exception ex) {
+ ex.printStackTrace();
+ return null;
+ }
+ return prop;
+ }
+
+ /**
+ * builds a map from properties. the key list is in the property
keyListPropertyName
+ * <br>Example getMap(props,"keylist") returns a hashtable with 3
key-value entry
+ * <pre>
+ * keylist=bar;bubba;foo
+ * bar=BAR
+ * foo=1.5;float
+ * bubba=100;int
+ * </pre>
+ *
+ [EMAIL PROTECTED] props the properties
+ [EMAIL PROTECTED] keyListPropertyName the property name of the key
list (separed by ;)
+ [EMAIL PROTECTED] The map
+ */
+ public static Map getMap(Properties props, String keyListPropertyName) {
+ return getHashtable(props, keyListPropertyName);
+ }
+
+ /**
+ * builds a hashtable from properties. the key list is in the property
keyListPropertyName
+ * <br>Example getHashtable(props,"keylist") returns a hashtable with 3
key-value entry
+ * <pre>
+ * keylist=bar;bubba;foo
+ * bar=BAR
+ * foo=1.5;float
+ * bubba=100;int
+ * </pre>
+ *
+ [EMAIL PROTECTED] props the properties
+ [EMAIL PROTECTED] keyListPropertyName the property name of the key
list (separed by ;)
+ [EMAIL PROTECTED] The hashtable
+ */
+ public static Hashtable getHashtable(Properties props, String
keyListPropertyName) {
+
+ StringTokenizer st = new
StringTokenizer(props.getProperty(keyListPropertyName), ";");
+ Hashtable map = new Hashtable();
+
+ while (st.hasMoreTokens()) {
+ String key = st.nextToken();
+ StringTokenizer stvaluetype = new
StringTokenizer(props.getProperty(key), ";");
+ Object obj = null;
+ if (stvaluetype.hasMoreTokens()) {
+ String value = stvaluetype.nextToken();
+ if (stvaluetype.hasMoreTokens()) {
+ String type = stvaluetype.nextToken();
+ if (type.equals("int")) {
+ obj = new Integer(value);
+ } else if (type.equals("long")) {
+ obj = new Long(value);
+ } else if (type.equals("float")) {
+ obj = new Float(value);
+ } else if (type.equals("double")) {
+ obj = new Double(value);
+ } else if (type.equals("string")) {
+ obj = value;
+ } else {
+ // default : string
+ obj = value;
+ }
+ } else {
+ // no type means String
+ obj = value;
+ }
+
+ }
+ map.put(key, obj);
+ }
+ return map;
+ }
+
+ /**
+ * builds a (ordered) vector from properties. the index list is in the
property keyListPropertyName
+ * <br>Example getVector(props,"tab") returns a 4 elements vector
(tab.5 is ignored since tab.4 does not exist)
+ * <pre>
+ * tab.0=bar
+ * tab.1=foo
+ * tab.2=1.5;float
+ * tab.3=100;int
+ * tab.5=10000;long
+ * </pre>
+ [EMAIL PROTECTED] props the properties
+ [EMAIL PROTECTED] vectorPropertyName the property name of the key
list (separed by ;)
+ [EMAIL PROTECTED] The vector
+ */
+ public static Vector getVector(Properties props, String
vectorPropertyName) {
+
+ Vector vect = new Vector();
+
+ for(int i=0;true;i++) {
+ String valuetype =
props.getProperty(vectorPropertyName)+"."+i;
+ if(valuetype==null) break;
+ StringTokenizer stvaluetype = new
StringTokenizer(valuetype, ";");
+ Object obj = null;
+ if (stvaluetype.hasMoreTokens()) {
+ String value = stvaluetype.nextToken();
+ if (stvaluetype.hasMoreTokens()) {
+ String type = stvaluetype.nextToken();
+ if (type.equals("int")) {
+ obj = new Integer(value);
+ } else if (type.equals("long")) {
+ obj = new Long(value);
+ } else if (type.equals("float")) {
+ obj = new Float(value);
+ } else if (type.equals("double")) {
+ obj = new Double(value);
+ } else if (type.equals("string")) {
+ obj = value;
+ } else {
+ // default : string
+ obj = value;
+ }
+ } else {
+ // no type means String
+ obj = value;
+ }
+
+ }
+ vect.addElement(obj);
+ }
+ return vect;
+ }
+}
Propchange:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/util/Configuration.java
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/VMFreeMemoryProducer.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/VMFreeMemoryProducer.java?rev=612122&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/VMFreeMemoryProducer.java
(added)
+++
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/VMFreeMemoryProducer.java
Tue Jan 15 06:22:23 2008
@@ -0,0 +1,252 @@
+/*
+ * 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.felix.sandbox.wireadmin.sample.vmfreememproducer;
+
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.Dictionary;
+import java.util.Enumeration;
+import java.util.Hashtable;
+import java.util.Properties;
+
+import org.apache.felix.sandbox.util.Configuration;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+import org.osgi.service.cm.ConfigurationException;
+import org.osgi.service.cm.ManagedService;
+import org.osgi.service.wireadmin.Producer;
+import org.osgi.service.wireadmin.Wire;
+import org.osgi.util.measurement.Measurement;
+import org.osgi.util.measurement.Unit;
+
+/**
+ * The class provides a producer on free memory amount of the JVM
+ * It's a sample for the Wire Admin service
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ * TODO check synchroniztions on wires[]
+ */
+public class VMFreeMemoryProducer implements Producer, Runnable,
BundleActivator, ManagedService {
+
+ private static final String CONFIGFILE = "/config.properties";
+ private static final String PRODUCER_PID =
"org.apache.felix.sandbox.wireadmin.sample.vmfreememory";
+
+ private BundleContext bundleContext;
+ private Wire wires[];
+ private ServiceRegistration serviceRegistration;
+
+ private PrintStream traceout = null;
+ private int pollDelay = 1000;
+ private boolean quit=false;
+ private boolean pause=true;
+
+
+ /**
+ * set the new set of Wires connected to this producers. This method is
invoked by the WireAdmin service each time a wire is created or removed
+ * @see
org.osgi.service.wireadmin.Producer#consumersConnected(org.osgi.service.wireadmin.Wire[])
+ */
+ public synchronized void consumersConnected(Wire wires[]) {
+ this.wires = wires;
+ if(wires==null || wires.length==0){
+ pause=true;
+ } else {
+ pause=false;
+ }
+ }
+
+ /**
+ * @param wire
+ * @return
+ * @see
org.osgi.service.wireadmin.Producer#polled(org.osgi.service.wireadmin.Wire)
+ */
+ public Object polled(Wire wire) {
+ long freemem = Runtime.getRuntime().freeMemory();
+ return polled(wire, freemem, System.currentTimeMillis());
+ }
+
+ /**
+ * Method producing a Object according to the consumer flavor priority
+ * @param wire
+ * @param freemem
+ * @param currentTimeMillis
+ * @return
+ */
+ private Object polled(Wire wire, long freemem, long currentTimeMillis) {
+ if(wire.isConnected() && wire.isValid()) {
+ Class clazzes[] = wire.getFlavors();
+ for (int i = 0; i < clazzes.length; i++) {
+ Class clazz = clazzes[i];
+ if (clazz.isAssignableFrom(Long.class))
+ return new Long(freemem);
+ if (clazz.isAssignableFrom(Measurement.class))
+ return new Measurement((double)
freemem, 0.0, Unit.unity, currentTimeMillis);
+ if (clazz.isAssignableFrom(String.class))
+ return new Long(freemem).toString();
+ }
+ }
+ return null;
+ }
+
+ /**
+ * update the values of the configuration properties
+ * @see org.osgi.service.cm.ManagedService#updated(java.util.Dictionary)
+ */
+ public void updated(Dictionary properties) throws
ConfigurationException {
+ String ptraceout = (String) properties.get("traceout");
+ PrintStream traceout = null;
+ if (ptraceout != null) {
+ if (ptraceout.equals("System.out")) {
+ traceout = System.out;
+ } else if (ptraceout.equals("System.err")) {
+ traceout = System.err;
+ } else {
+ // TODO instanciante the class with the name
+ System.err.println("custom trace is not
implemented !");
+ }
+ }
+
+ String polldelayprops = (String) properties.get("poll.delay");
+ if (polldelayprops != null) {
+ pollDelay = Integer.parseInt(polldelayprops);
+ }
+ }
+
+
+ /**
+ * Called upon starting of the bundle. This method invokes configure()
which
+ * load the configuration file, registers the services
+ *
+ * @param bundleContext The bundle bundleContext passed by the
framework
+ * @exception Exception
+ * @see
org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+ */
+ public void start(BundleContext context) throws Exception {
+ this.bundleContext = context;
+ configure();
+
+ // register the producer service
+ Hashtable registrationProperties = new Hashtable();
+ registrationProperties.put(
+
org.osgi.service.wireadmin.WireConstants.WIREADMIN_PRODUCER_FLAVORS,
+ new Class[] { Long.class, Measurement.class,
String.class });
+ registrationProperties.put(
+ org.osgi.framework.Constants.SERVICE_PID,
+ PRODUCER_PID);
+ registrationProperties.put(
+ org.osgi.framework.Constants.SERVICE_DESCRIPTION,
+ "a simple Producer that poll objects containing the VM
free memory");
+
+ serviceRegistration=context.registerService(new
String[]{Producer.class.getName(),ManagedService.class.getName()}, this,
registrationProperties);
+
+ // start the thread
+ quit = false;
+ new Thread(this).start();
+ }
+
+ /**
+ * load the configuration properties and set them
+ */
+ private void configure() throws Exception {
+
+ if (bundleContext == null)
+ return;
+
+ // Get the Config-Location value from the manifest
+
+ String configLocation = null;
+ Dictionary dict = bundleContext.getBundle().getHeaders();
+ Enumeration enumeration = dict.keys();
+ while (enumeration.hasMoreElements()) {
+ Object nextKey = enumeration.nextElement();
+ Object nextElem = dict.get(nextKey);
+ if (nextKey.equals("Config-Location")) {
+ configLocation = nextElem.toString();
+ break;
+ }
+ }
+ if (configLocation == null) {
+ configLocation = CONFIGFILE;
+ }
+
+
+ // Load properties from configLocation file
+ InputStream is = getClass().getResourceAsStream(configLocation);
+ Properties props = Configuration.loadProperties(is);
+
+ updated(props);
+ }
+
+ /**
+ * this thread run() method pushed the new value each pollDelay !
+ * @see java.lang.Runnable#run()
+ * TODO the thread could be "paused" until wires.lenght > 0
+ */
+ public synchronized void run() {
+ while (!quit)
+ try {
+ long freemem =
Runtime.getRuntime().freeMemory(); // consumers will received the same value
for free memory
+ long currentTimeMillis =
System.currentTimeMillis(); // and the same timestamp
+ for (int i = 0; wires != null && i <
wires.length; i++) {
+ Wire wire = wires[i];
+ // check if wire is valid and connected
?
+ if (!wire.isConnected() ||
!wire.isValid())
+ continue;
+
wire.update(polled(wire,freemem,currentTimeMillis));
+ }
+ Thread.sleep(pollDelay);
+ } catch (InterruptedException ie) {
+ /* will recheck quit */
+ }
+ }
+
+
+ /**
+ * Called upon stopping of the bundle. This method unregisters the
registered services
+ * @param bundleContext The bundle bundleContext passed by the
framework
+ * @exception Exception
+ * @see
org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+ */
+ public void stop(BundleContext bundleContext) throws Exception {
+ //stop the thread
+ quit = true;
+
+ serviceRegistration.unregister();
+ }
+ /**
+ * print a trace
+ * @param message message to trace
+ */
+ private void traceln(String message) {
+ if (traceout != null) {
+ trace(message);
+ trace("\n");
+ }
+ }
+
+ /**
+ * print a trace
+ * @param message message to trace
+ */
+ private void trace(String message) {
+ if (traceout != null) {
+ traceout.print(message);
+ }
+ }
+
+}
\ No newline at end of file
Propchange:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/vmfreememproducer/VMFreeMemoryProducer.java
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/config.properties
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/config.properties?rev=612122&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/config.properties
(added)
+++
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/config.properties
Tue Jan 15 06:22:23 2008
@@ -0,0 +1,3 @@
+
+# poll delay
+poll.delay=5000
Propchange:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/main/resources/config.properties
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/site/readme.html
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/site/readme.html?rev=612122&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/site/readme.html
(added)
+++
felix/sandbox/donsez/wireadmin.sample.freevmmemproducer/src/site/readme.html
Tue Jan 15 06:22:23 2008
@@ -0,0 +1,85 @@
+<html>
+<head>
+<title>VM Free Memory Producer</title>
+</head>
+<body>
+
+<!-- Start of Felix Bundle Documentation -->
+<hr width="100%" size="2">
+<h1><i><a name="wireadmin.sample.vmfreememproducer"></a><font
color="#0000aa">VM Free Memory Producer</font></i></h1>
+
+<p>
+<b>Description</b><br>
+This bundle provides a simple Producer service which poll the amount of the VM
free memory
+</p>
+
+<p>
+<b>Contributors</b><br>
+<ul>
+<li>Author:<a href="[EMAIL PROTECTED]">Felix Project Team</a></li>
+</ul>
+</p>
+
+<p>
+<b>License</b><br>
+ASL2
+</p>
+
+<p>
+<b>Services</b><br>
+<code>org.osgi.service.wireadmin.Producer</code>
+</p>
+
+<p>
+<b>Properties</b><br>
+<ul>
+<li><code>service.pid=org.apache.felix.wireadmin.sample.vmfreememory</code></li>
+<li><code>wireadmin.producer.flavors=[class java.lang.Long,class
org.osgi.util.measurement.Measurement,class java.lang.String]</code><li>
+</ul>
+</p>
+
+<p><b>Requirements</b><br>
+<ul>
+<li><code>org.osgi.service.wireadmin; specification-version=1.0.0</code></li>
+<li><code>org.osgi.util.measurement; specification-version=1.0.0</code></li>
+</ul>
+</p>
+
+
+<!-- End of Felix Bundle Documentation -->
+
+<hr width="100%" size="2">
+
+<!-- Start of extra information -->
+
+<p>
+<b>Build</b><br>
+<ol>
+<li>setup the properties in src/main/resources/config.properties</li>
+<li>build with <code>mvn clean install</code></li>
+</ol>
+</p>
+
+<b>Test</b><br>
+Launch commands in <a
href="http://www.apache.org/~donsez/dev/osgi/script/wa.txt";>http://www.apache.org/~donsez/dev/osgi/script/wa.txt</a>
+</p>
+
+<p id="gateways">
+<b>Tested gateways</b><br>
+<ul>
+<li><a href="http//oscar.objectweb.org/">OSCAR</a> (done)</li>
+<li><a href="http://cwiki.apache.org/FELIX/";>Felix</a> (done)</li>
+<li><a href="http://www.knopflerfish.org";>Knopflerfish OSGi</a> (to do)</li>
+<li>Equinox (to do)</li>
+<li>Prosyst mbs pro(to do)</li>
+</ul>
+</p>
+
+<p>
+<b>TODO (contributions are welcome)</b><br>
+<ul>
+</ul>
+</p>
+
+</body>
+</html>
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