Initial checkin of org.eclipse.ecf.tutorial.distribution.common bundle

14 files changed, 449 insertions, 0 deletions

diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.classpath b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.classpath
new file mode 100644
index 000000000..64c5e31b7
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.classpath
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.project b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.project
new file mode 100644
index 000000000..fec50e277
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.project
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.eclipse.ecf.tutorial.distribution.common</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.api.tools.apiAnalysisBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.api.tools.apiAnalysisNature</nature>
+	</natures>
+</projectDescription>
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.settings/org.eclipse.jdt.core.prefs b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 000000000..32972a074
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,8 @@
+#Thu Mar 19 19:49:20 PDT 2009
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
+org.eclipse.jdt.core.compiler.compliance=1.5
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.5
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.settings/org.eclipse.pde.core.prefs b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.settings/org.eclipse.pde.core.prefs
new file mode 100644
index 000000000..a3e341ad2
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/.settings/org.eclipse.pde.core.prefs
@@ -0,0 +1,4 @@
+#Thu Mar 19 19:49:20 PDT 2009
+eclipse.preferences.version=1
+pluginProject.extensions=false
+resolve.requirebundle=false
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/META-INF/MANIFEST.MF b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/META-INF/MANIFEST.MF
new file mode 100644
index 000000000..ccc681050
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/META-INF/MANIFEST.MF
@@ -0,0 +1,14 @@
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: ECF EclipseCon 2009 Tutorial Common
+Bundle-SymbolicName: org.eclipse.ecf.tutorial.distribution.common
+Bundle-Version: 1.0.0
+Bundle-Vendor: Eclipse.org
+Bundle-RequiredExecutionEnvironment: J2SE-1.5
+Import-Package: org.eclipse.osgi.service.environment,
+ org.osgi.framework,
+ org.osgi.util.tracker
+Export-Package: org.eclipse.ecf.tutorial.distribution.common.complextypes,
+ org.eclipse.ecf.tutorial.distribution.common.environmentinfo,
+ org.eclipse.ecf.tutorial.distribution.common.hello,
+ org.eclipse.ecf.tutorial.internal.distribution.common;x-internal:=true
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/build.properties b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/build.properties
new file mode 100644
index 000000000..34d2e4d2d
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/build.properties
@@ -0,0 +1,4 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/ComplexTypesImpl.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/ComplexTypesImpl.java
new file mode 100644
index 000000000..125f158a2
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/ComplexTypesImpl.java
@@ -0,0 +1,24 @@
+/*******************************************************************************
+* Copyright (c) 2009 EclipseSource and others. All rights reserved. This
+* program and the accompanying materials are made available under the terms of
+* the Eclipse Public License v1.0 which accompanies this distribution, and is
+* available at http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*   EclipseSource - initial API and implementation
+******************************************************************************/
+package org.eclipse.ecf.tutorial.distribution.common.complextypes;
+
+public class ComplexTypesImpl implements IComplexTypes {
+
+	private MyComplexData data = new MyComplexData("host1","host2");
+	
+	public MyComplexData get() {
+		return data;
+	}
+
+	public void set(MyComplexData complex) {
+		data = complex;
+	}
+
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/IComplexTypes.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/IComplexTypes.java
new file mode 100644
index 000000000..88cce17b7
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/IComplexTypes.java
@@ -0,0 +1,19 @@
+/*******************************************************************************
+* Copyright (c) 2009 EclipseSource and others. All rights reserved. This
+* program and the accompanying materials are made available under the terms of
+* the Eclipse Public License v1.0 which accompanies this distribution, and is
+* available at http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*   EclipseSource - initial API and implementation
+******************************************************************************/
+package org.eclipse.ecf.tutorial.distribution.common.complextypes;
+
+public interface IComplexTypes {
+
+	public void set(MyComplexData complex);
+	
+	public MyComplexData get();
+	
+	
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/MyComplexData.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/MyComplexData.java
new file mode 100644
index 000000000..fa6576470
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/complextypes/MyComplexData.java
@@ -0,0 +1,38 @@
+/*******************************************************************************
+* Copyright (c) 2009 EclipseSource and others. All rights reserved. This
+* program and the accompanying materials are made available under the terms of
+* the Eclipse Public License v1.0 which accompanies this distribution, and is
+* available at http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*   EclipseSource - initial API and implementation
+******************************************************************************/
+package org.eclipse.ecf.tutorial.distribution.common.complextypes;
+
+import java.io.Serializable;
+
+public class MyComplexData implements Serializable {
+
+	private static final long serialVersionUID = -7599059139426924939L;
+
+	private String str1;
+	private String str2;
+	
+	public MyComplexData(String str1, String str2) {
+		this.str1 = str1;
+		this.str2 = str2;
+	}
+	
+	public String getStr1() {
+		return str1;
+	}
+	
+	public String getStr2() {
+		return str2;
+	}
+
+	public String toString() {
+		return "MyComplexData [str1=" + str1 + ", str2=" + str2 + "]";
+	}
+	
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/environmentinfo/IRemoteEnvironmentInfo.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/environmentinfo/IRemoteEnvironmentInfo.java
new file mode 100644
index 000000000..0fc89ad6d
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/environmentinfo/IRemoteEnvironmentInfo.java
@@ -0,0 +1,99 @@
+/****************************************************************************
+ * Copyright (c) 2008 Composent, Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Composent, Inc. - initial API and implementation
+ *****************************************************************************/
+
+package org.eclipse.ecf.tutorial.distribution.common.environmentinfo;
+
+/**
+ *
+ */
+public interface IRemoteEnvironmentInfo {
+
+	/**
+	 * Returns all command line arguments specified when the running framework was started.
+	 * 
+	 * @return the array of command line arguments.
+	 */
+	public String[] getCommandLineArgs();
+
+	/**
+	 * Returns the arguments consumed by the framework implementation itself.  Which
+	 * arguments are consumed is implementation specific.
+	 * 
+	 * @return the array of command line arguments consumed by the framework.
+	 */
+	public String[] getFrameworkArgs();
+
+	/**
+	 * Returns the arguments not consumed by the framework implementation itself.  Which
+	 * arguments are consumed is implementation specific.
+	 * 
+	 * @return the array of command line arguments not consumed by the framework.
+	 */
+	public String[] getNonFrameworkArgs();
+
+	/**
+	 * Returns the string name of the current system architecture.  
+	 * The value is a user-defined string if the architecture is 
+	 * specified on the command line, otherwise it is the value 
+	 * returned by <code>java.lang.System.getProperty("os.arch")</code>.
+	 * 
+	 * @return the string name of the current system architecture
+	 */
+	public String getOSArch();
+
+	/**
+	 * Returns the string name of the current locale for use in finding files
+	 * whose path starts with <code>$nl$</code>.
+	 *
+	 * @return the string name of the current locale
+	 */
+	public String getNL();
+
+	/**
+	 * Returns the string name of the current operating system for use in finding
+	 * files whose path starts with <code>$os$</code>.  Return "unknown" 
+	 * if the operating system cannot be determined.
+	 * <p>  
+	 * The value may indicate one of the operating systems known to the platform
+	 * (as specified in <code>org.eclipse.core.runtime.Platform#knownOSValues</code>) 
+	 * or a user-defined string if the operating system name is specified on the command line.
+	 * </p>
+	 *
+	 * @return the string name of the current operating system
+	 */
+	public String getOS();
+
+	/**
+	 * Returns the string name of the current window system for use in finding files
+	 * whose path starts with <code>$ws$</code>.  Return <code>null</code>
+	 * if the window system cannot be determined.
+	 *
+	 * @return the string name of the current window system or <code>null</code>
+	 */
+	public String getWS();
+
+	/**
+	 * Returns <code>true</code> if the framework is in debug mode and
+	 * <code>false</code> otherwise.
+	 * 
+	 * @return whether or not the framework is in debug mode
+	 */
+	public Boolean inDebugMode();
+
+	/**
+	 * Returns <code>true</code> if the framework is in development mode
+	 * and <code>false</code> otherwise.
+	 * 
+	 * @return whether or not the framework is in development mode
+	 */
+	public Boolean inDevelopmentMode();
+
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/environmentinfo/RemoteEnvironmentInfoImpl.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/environmentinfo/RemoteEnvironmentInfoImpl.java
new file mode 100644
index 000000000..1c4af9089
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/environmentinfo/RemoteEnvironmentInfoImpl.java
@@ -0,0 +1,107 @@
+/****************************************************************************
+ * Copyright (c) 2008 Composent, Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Composent, Inc. - initial API and implementation
+ *****************************************************************************/
+
+package org.eclipse.ecf.tutorial.distribution.common.environmentinfo;
+
+import org.eclipse.ecf.tutorial.internal.distribution.common.Activator;
+import org.eclipse.osgi.service.environment.EnvironmentInfo;
+
+/**
+ *
+ */
+public class RemoteEnvironmentInfoImpl implements IRemoteEnvironmentInfo {
+
+	private EnvironmentInfo getEnvironmentInfo() {
+		return Activator.getDefault().getEnvironmentInfo();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getCommandLineArgs()
+	 */
+	public String[] getCommandLineArgs() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getCommandLineArgs()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getCommandLineArgs();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getFrameworkArgs()
+	 */
+	public String[] getFrameworkArgs() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getFrameworkArgs()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getFrameworkArgs();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getNL()
+	 */
+	public String getNL() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getNL()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getNL();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getNonFrameworkArgs()
+	 */
+	public String[] getNonFrameworkArgs() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getNonFrameworkArgs()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getNonFrameworkArgs();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getOS()
+	 */
+	public String getOS() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getOS()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getOS();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getOSArch()
+	 */
+	public String getOSArch() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getOSArch()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getOSArch();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#getWS()
+	 */
+	public String getWS() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("getWS()"); //$NON-NLS-1$
+		return (ei == null) ? null : ei.getWS();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#inDebugMode()
+	 */
+	public Boolean inDebugMode() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("inDebugMode()"); //$NON-NLS-1$
+		return (ei == null) ? null : new Boolean(ei.inDebugMode());
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo#inDevelopmentMode()
+	 */
+	public Boolean inDevelopmentMode() {
+		final EnvironmentInfo ei = getEnvironmentInfo();
+		System.out.println("inDevelopmentMode()"); //$NON-NLS-1$
+		return (ei == null) ? null : new Boolean(ei.inDevelopmentMode());
+	}
+
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/hello/HelloImpl.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/hello/HelloImpl.java
new file mode 100644
index 000000000..a959c134e
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/hello/HelloImpl.java
@@ -0,0 +1,24 @@
+/*******************************************************************************
+* Copyright (c) 2009 EclipseSource and others. All rights reserved. This
+* program and the accompanying materials are made available under the terms of
+* the Eclipse Public License v1.0 which accompanies this distribution, and is
+* available at http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*   EclipseSource - initial API and implementation
+******************************************************************************/
+package org.eclipse.ecf.tutorial.distribution.common.hello;
+
+public class HelloImpl implements IHello {
+
+	public void hello() {
+		System.out.println("Somebody just called hello.");
+	}
+
+	public String helloThere(String from) {
+		String response = from + " just called helloThere";
+		System.out.println(response);
+		return response;
+	}
+
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/hello/IHello.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/hello/IHello.java
new file mode 100644
index 000000000..9899cdd33
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/distribution/common/hello/IHello.java
@@ -0,0 +1,18 @@
+/*******************************************************************************
+* Copyright (c) 2009 EclipseSource and others. All rights reserved. This
+* program and the accompanying materials are made available under the terms of
+* the Eclipse Public License v1.0 which accompanies this distribution, and is
+* available at http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*   EclipseSource - initial API and implementation
+******************************************************************************/
+package org.eclipse.ecf.tutorial.distribution.common.hello;
+
+public interface IHello {
+
+	public void hello();
+	
+	public String helloThere(String from);
+	
+}
diff --git a/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/internal/distribution/common/Activator.java b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/internal/distribution/common/Activator.java
new file mode 100644
index 000000000..d21d64473
--- /dev/null
+++ b/doc/tutorials/EclipseCON 2009/bundles/org.eclipse.ecf.tutorial.distribution.common/src/org/eclipse/ecf/tutorial/internal/distribution/common/Activator.java
@@ -0,0 +1,49 @@
+/*******************************************************************************
+* Copyright (c) 2009 EclipseSource and others. All rights reserved. This
+* program and the accompanying materials are made available under the terms of
+* the Eclipse Public License v1.0 which accompanies this distribution, and is
+* available at http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*   EclipseSource - initial API and implementation
+******************************************************************************/
+package org.eclipse.ecf.tutorial.internal.distribution.common;
+
+import org.eclipse.osgi.service.environment.EnvironmentInfo;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.util.tracker.ServiceTracker;
+
+public class Activator implements BundleActivator {
+
+	private static Activator activator;
+	
+	private BundleContext context;
+	
+	private ServiceTracker environmentInfoServiceTracker;
+	
+	public static Activator getDefault() {
+		return activator;
+	}
+	
+	public void start(BundleContext context) throws Exception {
+		activator = this;
+		this.context = context;
+	}
+
+	public void stop(BundleContext context) throws Exception {
+		if (environmentInfoServiceTracker != null) {
+			environmentInfoServiceTracker.close();
+			environmentInfoServiceTracker = null;
+		}
+		this.context = null;
+	}
+
+	public EnvironmentInfo getEnvironmentInfo() {
+		if (environmentInfoServiceTracker == null) {
+			environmentInfoServiceTracker = new ServiceTracker(context,EnvironmentInfo.class.getName(),null);
+			environmentInfoServiceTracker.open();
+		}
+		return (EnvironmentInfo) environmentInfoServiceTracker.getService();
+	}
+}