Author: donsez
Date: Tue Jan 15 15:05:25 2008
New Revision: 612292
URL: http://svn.apache.org/viewvc?rev=612292&view=rev
Log:
creation of the "Fictive Measurement Producer" bundle : a Producer example that
poll Measurement objects according to a function sin().
Added:
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/pom.xml
(with props)
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/Configuration.java
(with props)
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/UnitUtil.java
(with props)
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/fictivemeasurementproducer/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/fictivemeasurementproducer/MeasurementProducer.java
(with props)
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/resources/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/resources/config.properties
(with props)
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/site/
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/site/readme.html
(with props)
Added: felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/pom.xml
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/pom.xml?rev=612292&view=auto
==============================================================================
--- felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/pom.xml
(added)
+++ felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/pom.xml
Tue Jan 15 15:05:25 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>a example of a producer for the Wire Admin
service.</description>
+ </properties>
+
+ <modelVersion>4.0.0</modelVersion>
+ <packaging>bundle</packaging>
+ <name>Fictive Measurement Producer</name>
+ <description>${description}</description>
+ <groupId>org.apache.felix.sandbox</groupId>
+ <version>0.1.0-SNAPSHOT</version>
+ <artifactId>wireadmin.sample.fictivemeasurementproducer</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}.MeasurementProducer</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.fictivemeasurementproducer/pom.xml
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/Configuration.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/Configuration.java?rev=612292&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/Configuration.java
(added)
+++
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/Configuration.java
Tue Jan 15 15:05:25 2008
@@ -0,0 +1,217 @@
+/*
+ * 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.config;
+
+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;
+
+/**
+ * configuration utility
+ *
+ * @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
+ *
+ * @param filename
+ * the properties file name
+ * @return the properties
+ */
+ public static Properties loadProperties(String filename) {
+ if (filename == null) {
+ filename = System.getProperty(
+
"org.apache.felix.sandbox.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
+ *
+ * @param in
+ * the imput stream
+ * @return 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>
+ *
+ * @param props
+ * the properties
+ * @param keyListPropertyName
+ * the property name of the key list (separed by ;)
+ * @return 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>
+ *
+ * @param props
+ * the properties
+ * @param keyListPropertyName
+ * the property name of the key list (separed by ;)
+ * @return 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>
+ *
+ * @param props
+ * the properties
+ * @param vectorPropertyName
+ * the property name of the key list (separed by ;)
+ * @return 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.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/config/Configuration.java
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/UnitUtil.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/UnitUtil.java?rev=612292&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/UnitUtil.java
(added)
+++
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/UnitUtil.java
Tue Jan 15 15:05:25 2008
@@ -0,0 +1,79 @@
+/*
+ * 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.measurement;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import org.osgi.util.measurement.Unit;
+
+/**
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ */
+
+public class UnitUtil {
+
+ private static Map mapString2Unit = new HashMap();
+ static {
+ mapString2Unit.put("A", Unit.A);
+ mapString2Unit.put("C", Unit.C);
+ mapString2Unit.put("cd", Unit.cd);
+ mapString2Unit.put("F", Unit.F);
+ mapString2Unit.put("Gy", Unit.Gy);
+ mapString2Unit.put("Hz", Unit.Hz);
+ mapString2Unit.put("J", Unit.J);
+ mapString2Unit.put("K", Unit.K);
+ mapString2Unit.put("kat", Unit.kat);
+ mapString2Unit.put("kg", Unit.kg);
+ mapString2Unit.put("lx", Unit.lx);
+ mapString2Unit.put("m", Unit.m);
+ mapString2Unit.put("m2", Unit.m2);
+ mapString2Unit.put("m3", Unit.m3);
+ mapString2Unit.put("m_s", Unit.m_s);
+ mapString2Unit.put("m_s2", Unit.m_s2);
+ mapString2Unit.put("mol", Unit.mol);
+ mapString2Unit.put("N", Unit.N);
+ mapString2Unit.put("Ohm", Unit.Ohm);
+ mapString2Unit.put("Pa", Unit.Pa);
+ mapString2Unit.put("rad", Unit.rad);
+ mapString2Unit.put("S", Unit.S);
+ mapString2Unit.put("s", Unit.s);
+ mapString2Unit.put("T", Unit.T);
+ mapString2Unit.put("unity", Unit.unity);
+ mapString2Unit.put("V", Unit.V);
+ mapString2Unit.put("W", Unit.W);
+ mapString2Unit.put("Wb", Unit.Wb);
+ }
+
+ public static Unit getUnitFromString(String str){
+ return (Unit) mapString2Unit.get(str);
+ }
+
+ public static String getStringFromUnit(Unit unit){
+ Iterator iter=mapString2Unit.entrySet().iterator();
+ while(iter.hasNext()){
+ Map.Entry mapEntry=(Map.Entry)iter.next();
+ if(unit.equals(mapEntry.getValue()))
+ return (String) mapEntry.getKey();
+ }
+ return null;
+ }
+
+}
Propchange:
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/util/measurement/UnitUtil.java
------------------------------------------------------------------------------
svn:eol-style = native
Added:
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/fictivemeasurementproducer/MeasurementProducer.java
URL:
http://svn.apache.org/viewvc/felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/fictivemeasurementproducer/MeasurementProducer.java?rev=612292&view=auto
==============================================================================
---
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/fictivemeasurementproducer/MeasurementProducer.java
(added)
+++
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/java/org/apache/felix/sandbox/wireadmin/sample/fictivemeasurementproducer/MeasurementProducer.java
Tue Jan 15 15:05:25 2008
@@ -0,0 +1,244 @@
+/*
+ * 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.fictivemeasurementproducer;
+
+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.config.Configuration;
+import org.apache.felix.sandbox.util.measurement.UnitUtil;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+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 of random measurements
+ * It's a sample for the Wire Admin service
+ * @author <a href="mailto:[EMAIL PROTECTED]">Felix Project Team</a>
+ * TODO check synchronizations on wires[]
+ * TODO takes into account wireadmin.filter
http://www2.osgi.org/javadoc/r4/org/osgi/service/wireadmin/WireConstants.html#WIREADMIN_FILTER
+ * TODO add pause when no wires are created, connected or valid
+ */
+public class MeasurementProducer implements Producer, Runnable,
BundleActivator {
+
+ private Wire wires[];
+ private ServiceRegistration serviceRegistration;
+
+ private int pollDelay;
+ private double max;
+ private double min;
+ private Unit unit;
+ private double error;
+ private long period;
+ private PrintStream traceout;
+
+ private boolean quit;
+
+ private static final String CONFIGFILE = "/config.properties";
+
+ protected BundleContext bundleContext = null;
+
+ /**
+ * Load the configuration properties and register e new service
+ */
+ private void configure() throws Exception {
+
+ // 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);
+
+ String ptraceout = props.getProperty("traceout");
+ 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 !");
+ }
+ } else {
+ traceout = null;
+ }
+
+ String polldelayprops = props.getProperty("poll.delay");
+ pollDelay = 1000; // default 1000 millisec
+ if (polldelayprops != null) {
+ pollDelay = Integer.parseInt(polldelayprops);
+ }
+
+ String propsmin = props.getProperty("measurement.min");
+ min = 273.0;
+ if (propsmin != null) {
+ min = Double.parseDouble(propsmin);
+ }
+
+ String propmax = props.getProperty("measurement.max");
+ max = 293.0;
+ if (propmax != null) {
+ max = Double.parseDouble(propmax);
+ }
+
+ String propserror = props.getProperty("measurement.error");
+ error = 0.5;
+ if (propsmin != null) {
+ error = Double.parseDouble(propserror);
+ }
+ String propsunit = props.getProperty("measurement.unit");
+ if(propsunit==null){
+ unit=Unit.K;
+ } else {
+ unit = UnitUtil.getUnitFromString(propsunit);
+ }
+
+ String periodprops =
props.getProperty("measurement.sinusperiod");
+ pollDelay = 120000; // default 1000 millisec
+ if (periodprops != null) {
+ period = Long.parseLong(periodprops);
+ }
+
+
+ }
+
+
+
+ /**
+ * @see java.lang.Runnable#run()
+ */
+ public synchronized void run() {
+ while (!quit){
+ try {
+ Measurement measurement = getMeasurement();
+ 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;
+ Object obj=polled(wire,measurement);
+ // TODO : respect the control flow
specified by the consumer
+ if(obj!=null) wire.update(obj);
+ }
+ Thread.sleep(pollDelay);
+ } catch (InterruptedException ie) {
+ /* will recheck quit */
+ }
+ }
+ }
+
+ /**
+ * @see
org.osgi.service.wireadmin.Producer#consumersConnected(org.osgi.service.wireadmin.Wire[])
+ */
+ public synchronized void consumersConnected(Wire wires[]) {
+ this.wires = wires;
+ }
+
+ /**
+ * @see
org.osgi.service.wireadmin.Producer#polled(org.osgi.service.wireadmin.Wire)
+ */
+ public Object polled(Wire wire) {
+ return polled(wire,getMeasurement());
+ }
+
+ private Object polled(Wire wire,Measurement measurement) {
+ Class clazzes[] = wire.getFlavors();
+ for (int i = 0; i < clazzes.length; i++) {
+ Class clazz = clazzes[i];
+ if (clazz.isAssignableFrom(Measurement.class))
+ return measurement;
+ if (clazz.isAssignableFrom(Double.class))
+ return new Double(measurement.getValue());
+ if (clazz.isAssignableFrom(String.class))
+ return measurement.toString();
+ }
+ return null;
+ }
+
+ /**
+ * generate a random Measurement
+ * @return
+ */
+ private Measurement getMeasurement() {
+ long date=System.currentTimeMillis();
+ double value = min + ((max - min) * Math.sin((Math.PI*(date %
period))/period));
+ return new Measurement(value, error, unit, date);
+ }
+
+ /**
+ * @see
org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
+ */
+ public void start(BundleContext bundleContext) throws Exception {
+ this.bundleContext=bundleContext;
+
+ configure();
+
+ Hashtable registrationProperties = new Hashtable();
+ registrationProperties.put(
+
org.osgi.service.wireadmin.WireConstants.WIREADMIN_PRODUCER_FLAVORS,
+ new Class[] { Measurement.class, Double.class,
String.class });
+ registrationProperties.put(
+ org.osgi.framework.Constants.SERVICE_PID,
+ this.getClass().getPackage().getName());
+ registrationProperties.put(
+ Unit.class.getName(),
+ UnitUtil.getStringFromUnit(unit));
+ registrationProperties.put(
+
org.osgi.framework.Constants.SERVICE_DESCRIPTION,
+ "a simple Producer that poll Measurement
objects");
+
+
serviceRegistration=bundleContext.registerService(Producer.class.getName(),
this, registrationProperties);
+
+ quit = false;
+ new Thread(this).start();
+ }
+
+ /**
+ * @see
org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
+ */
+ public void stop(BundleContext bundleContext) throws Exception {
+ this.quit = true;
+ serviceRegistration.unregister();
+ }
+}
\ No newline at end of file
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+++
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/main/resources/config.properties
Tue Jan 15 15:05:25 2008
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+
+# poll delay
+poll.delay=5000
+
+# measurement parameter for generation
+measurement.max=283.0
+measurement.min=273.0
+measurement.error=0.25
+measurement.unit=K
+
+# period in millisec for sinusoïdal curve
+measurement.sinusperiod=120000
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felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/site/readme.html
(added)
+++
felix/sandbox/donsez/wireadmin.sample.fictivemeasurementproducer/src/site/readme.html
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+<html>
+<head>
+<title>Fictive Measurement Producer</title>
+</head>
+<body>
+
+<hr width="100%" size="2">
+<h1><i><a
name="org.apache.felix.sandbox.wireadmin.sample.fictivemeasurementproducer"></a><font
color="#0000aa">Fictive Measurement Producer</font></i></h1>
+
+<p>
+<b>Description</b><br>
+This bundle provides a simple Producer service which poll fictive Measurement
objects (according a function sine)
+</p>
+
+<p>
+<b>Contributors</b><br>
+Apache Project Team
+</p>
+
+<p>
+<b>License</b><br>
+ASL2<br>
+</p>
+
+<p>
+<b>Services</b><br>
+<code>org.osgi.service.wireadmin.Producer</code>
+</p>
+
+<p>
+<b>Properties</b><br>
+service.pid=org.apache.felix.sandbox.wireadmin.sample.fictivemeasurementproducer<br>
+wireadmin.producer.flavors=class org.osgi.util.measurement.Measurement,class
java.lang.String<br>
+<br>
+</p>
+
+<p><b>Requirements</b><br>
+<ul>
+<li>org.osgi.service.wireadmin; version=1.0</li>
+<li>org.osgi.util.measurement; version=1.0</li>
+</ul>
+</p>
+
+
+<hr width="100%" size="2">
+
+
+<p>
+<b>Build</b><br>
+<ol>
+<li>setup the properties in src/main/resources/config.properties</li>
+<li>then build with Maven 2: <code>mvn clean install</code></li>
+</ol>
+</p>
+
+
+<p>
+<b>Tested gateways</b><br>
+<ul>
+<li>Objectweb Oscar (done)</li>
+<li>Apache Felix (done)</li>
+</ul>
+</p>
+
+<p>
+<b>TODO (contributions are welcome)</b><br>
+<ul>
+</ul>
+</p>
+
+</body>
+</html>
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