Moving 2.x trunk

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@882795 13f79535-47bb-0310-9956-ffa450edef68

11 files changed, 1136 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/LICENSE b/sca-java-2.x/trunk/modules/extensibility-equinox/LICENSE
new file mode 100644
index 0000000000..6e529a25c4
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/LICENSE
@@ -0,0 +1,205 @@
+

+                                 Apache License

+                           Version 2.0, January 2004

+                        http://www.apache.org/licenses/

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+      separable from, or merely link (or bind by name) to the interfaces of,

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+      "Contribution" shall mean any work of authorship, including

+      the original version of the Work and any modifications or additions

+      to that Work or Derivative Works thereof, that is intentionally

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+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable

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+      (except as stated in this section) patent license to make, have made,

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+      where such license applies only to those patent claims licensable

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+      Contribution(s) alone or by combination of their Contribution(s)

+      with the Work to which such Contribution(s) was submitted. If You

+      institute patent litigation against any entity (including a

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+      or a Contribution incorporated within the Work constitutes direct

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+

+   4. Redistribution. You may reproduce and distribute copies of the

+      Work or Derivative Works thereof in any medium, with or without

+      modifications, and in Source or Object form, provided that You

+      meet the following conditions:

+

+      (a) You must give any other recipients of the Work or

+          Derivative Works a copy of this License; and

+

+      (b) You must cause any modified files to carry prominent notices

+          stating that You changed the files; and

+

+      (c) You must retain, in the Source form of any Derivative Works

+          that You distribute, all copyright, patent, trademark, and

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+      reproduction, and distribution of the Work otherwise complies with

+      the conditions stated in this License.

+

+   5. Submission of Contributions. Unless You explicitly state otherwise,

+      any Contribution intentionally submitted for inclusion in the Work

+      by You to the Licensor shall be under the terms and conditions of

+      this License, without any additional terms or conditions.

+      Notwithstanding the above, nothing herein shall supersede or modify

+      the terms of any separate license agreement you may have executed

+      with Licensor regarding such Contributions.

+

+   6. Trademarks. This License does not grant permission to use the trade

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+   Unless required by applicable law or agreed to in writing, software

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+

diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/META-INF/MANIFEST.MF b/sca-java-2.x/trunk/modules/extensibility-equinox/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000..cd34f995f4
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/META-INF/MANIFEST.MF
@@ -0,0 +1,29 @@
+Manifest-Version: 1.0

+Private-Package: org.apache.tuscany.sca.extensibility.equinox;version=

+ "2.0.0"

+Bundle-ActivationPolicy: lazy

+SCA-Version: 1.1

+Bundle-Name: Apache Tuscany SCA Extensibility for Eclipse Equinox

+Bundle-Vendor: The Apache Software Foundation

+Eclipse-LazyStart: true

+Bundle-Version: 2.0.0

+Bundle-Activator: org.apache.tuscany.sca.extensibility.equinox.Equinox

+ ServiceDiscoveryActivator

+Bundle-ManifestVersion: 2

+Bundle-Description: Apache Tuscany SCA Extensibility for Eclipse Equin

+ ox

+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt

+Import-Package: org.apache.tuscany.sca.core;version="2.0.0",

+ org.apache.tuscany.sca.extensibility;version="2.0.0",

+ org.osgi.framework;version="1.4",

+ org.osgi.framework.launch;version="1.0.0";resolution:=optional

+Tuscany-Comment2: The system bundle exports javax.transaction* packages that only

+ contains a subset of the classes

+DynamicImport-Package: org.apache.tuscany.sca.extensibility.equinox,

+ javax.transaction;version="1.1",

+ javax.transaction.xa;version="1.1",

+ * 

+Bundle-SymbolicName: org.apache.tuscany.sca.extensibility.equinox

+Bundle-DocURL: http://www.apache.org/

+Bundle-RequiredExecutionEnvironment: J2SE-1.5,JavaSE-1.6
+Export-Package: org.apache.tuscany.sca.extensibility.equinox;version="2.0.0"

diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/NOTICE b/sca-java-2.x/trunk/modules/extensibility-equinox/NOTICE
new file mode 100644
index 0000000000..db5ab284d5
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/NOTICE
@@ -0,0 +1,5 @@
+Copyright (c) 2005 - 2009 The Apache Software Foundation

+

+This product includes software developed by

+The Apache Software Foundation (http://www.apache.org/).

+

diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/pom.xml b/sca-java-2.x/trunk/modules/extensibility-equinox/pom.xml
new file mode 100644
index 0000000000..6643dd01d6
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/pom.xml
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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>
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.tuscany.sca</groupId>
+        <artifactId>tuscany-modules</artifactId>
+        <version>2.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>tuscany-extensibility-equinox</artifactId>
+    <name>Apache Tuscany SCA Extensibility for Eclipse Equinox</name>
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-extensibility</artifactId>
+            <version>2.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.eclipse</groupId>
+            <artifactId>osgi</artifactId>
+            <version>3.5.0-v20090520</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <version>2.0</version>
+                <executions>
+                    <execution>
+                        <id>copy-dependencies</id>
+                        <phase>process-test-resources</phase>
+                        <goals>
+                            <goal>copy-dependencies</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>${project.build.directory}/bundles</outputDirectory>
+                            <excludeArtifactIds>osgi,junit,easymock,tuscany-extensibility</excludeArtifactIds>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java b/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java
new file mode 100644
index 0000000000..31a3ae3b9c
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoverer.java
@@ -0,0 +1,354 @@
+/*
+ * 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.tuscany.sca.extensibility.equinox;
+
+import static org.apache.tuscany.sca.extensibility.ServiceDeclarationParser.parseDeclaration;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscoverer;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.BundleException;
+import org.osgi.framework.Constants;
+import org.osgi.framework.Version;
+
+/**
+ * A ServiceDiscoverer that find META-INF/services/... in installed bundles
+ *
+ * @version $Rev$ $Date$
+ */
+public class EquinoxServiceDiscoverer implements ServiceDiscoverer {
+    private static final Logger logger = Logger.getLogger(EquinoxServiceDiscoverer.class.getName());
+
+    private BundleContext context;
+    private Version version;
+
+    public EquinoxServiceDiscoverer(BundleContext context) {
+        this.context = context;
+        Bundle bundle = context.getBundle();
+        this.version = getSCAVersion(bundle);
+    }
+
+    private Version getSCAVersion(Bundle bundle) {
+        Version scaVersion = Version.emptyVersion;
+        String header = (String)bundle.getHeaders().get("SCA-Version");
+        if (header == null) {
+            scaVersion = Version.parseVersion("1.1");
+        } else {
+            header = header.trim();
+            if (header.equals("")) {
+                header = "1.1";
+            }
+            scaVersion = Version.parseVersion(header);
+        }
+        return scaVersion;
+    }
+
+    public static class ServiceDeclarationImpl implements ServiceDeclaration {
+        private Bundle bundle;
+        private URL url;
+        private String className;
+        private Class<?> javaClass;
+        private Map<String, String> attributes;
+
+        public ServiceDeclarationImpl(Bundle bundle, URL url, String className, Map<String, String> attributes) {
+            super();
+            this.bundle = bundle;
+            this.url = url;
+            this.className = className;
+            this.attributes = attributes;
+        }
+
+        public Map<String, String> getAttributes() {
+            return attributes;
+        }
+
+        public String getClassName() {
+            return className;
+        }
+
+        public Class<?> loadClass() throws ClassNotFoundException {
+            if (className == null) {
+                return null;
+            }
+            if (javaClass == null) {
+                javaClass = loadClass(className);
+            }
+            return javaClass;
+        }
+
+        public Class<?> loadClass(String className) throws ClassNotFoundException {
+            return bundle.loadClass(className);
+        }
+
+        public URL getLocation() {
+            return url;
+        }
+
+        public URL getResource(final String name) {
+            return AccessController.doPrivileged(new PrivilegedAction<URL>() {
+                public URL run() {
+                    return bundle.getResource(name);
+                }
+            });
+        }
+
+        @Override
+        public String toString() {
+            StringBuffer sb = new StringBuffer();
+            sb.append("Bundle: ").append(EquinoxServiceDiscoverer.toString(bundle));
+            sb.append(" Resource: ").append(url);
+            sb.append(" Attributes: ").append(attributes);
+            return sb.toString();
+        }
+
+        public Bundle getBundle() {
+            return bundle;
+        }
+
+        public boolean isAssignableTo(Class<?> serviceType) {
+            try {
+                loadClass();
+            } catch (ClassNotFoundException e) {
+                // Ignore 
+            }
+            return (javaClass != null && serviceType.isAssignableFrom(javaClass));
+        }
+
+    }
+
+    /**
+     * Empty static method to trigger the activation of this bundle.
+     */
+    public static void init() {
+    }
+
+    private static String toString(Bundle b) {
+        StringBuffer sb = new StringBuffer();
+        sb.append(b.getBundleId()).append(" ").append(b.getSymbolicName());
+        int s = b.getState();
+        if ((s & Bundle.UNINSTALLED) != 0) {
+            sb.append(" UNINSTALLED");
+        }
+        if ((s & Bundle.INSTALLED) != 0) {
+            sb.append(" INSTALLED");
+        }
+        if ((s & Bundle.RESOLVED) != 0) {
+            sb.append(" RESOLVED");
+        }
+        if ((s & Bundle.STARTING) != 0) {
+            sb.append(" STARTING");
+        }
+        if ((s & Bundle.STOPPING) != 0) {
+            sb.append(" STOPPING");
+        }
+        if ((s & Bundle.ACTIVE) != 0) {
+            sb.append(" ACTIVE");
+        }
+        return sb.toString();
+
+    }
+
+
+    public ServiceDeclaration getServiceDeclaration(String name) throws IOException {
+        Collection<ServiceDeclaration> declarations = getServiceDeclarations(name);
+        if (declarations.isEmpty()) {
+            return null;
+        } else {
+            return declarations.iterator().next();
+        }
+    }
+    
+    private boolean isProviderBundle(Bundle bundle) {
+        if (bundle.getBundleId() == 0 || bundle.getSymbolicName().startsWith("1.x-osgi-bundle")
+            || bundle.getHeaders().get(Constants.FRAGMENT_HOST) != null) {
+            // Skip system bundle as it has access to the application classloader
+            // Skip the 1.x runtime bundle as this has 1.x services in it
+            //    For testing running 1.x and 2.x in same VM. 
+            //    Don't know what final form will be yet.
+            // Skip bundle fragments too
+            return false;
+        }
+        if (bundle.getSymbolicName().startsWith("org.apache.tuscany.sca.")) {
+            Version scaVersion = getSCAVersion(bundle);
+            return scaVersion.compareTo(version) >= 0;
+        }
+        return true;
+    }
+
+    public Collection<ServiceDeclaration> getServiceDeclarations(String serviceName) throws IOException {
+        boolean debug = logger.isLoggable(Level.FINE);
+        Collection<ServiceDeclaration> descriptors = new HashSet<ServiceDeclaration>();
+
+        // http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/xpath/XPathFactory.html
+        boolean isPropertyFile = "javax.xml.xpath.XPathFactory".equals(serviceName);
+        serviceName = "META-INF/services/" + serviceName;
+
+        Set<URL> visited = new HashSet<URL>();
+        //System.out.println(">>>> getServiceDeclarations()");
+        for (Bundle bundle : context.getBundles()) {
+            if (!isProviderBundle(bundle)) {
+                continue;
+            }
+            Enumeration<URL> urls = null;
+            try {
+                // Use getResources to find resources on the classpath of the bundle
+                // Please note there are cases that getResources will return null even
+                // the bundle containing such entries:
+                // 1. There is a match on Import-Package or DynamicImport-Package, and another
+                // bundle exports the resource package, there is a possiblity that it doesn't
+                // find the containing entry
+                // 2. The bundle cannot be resolved, then getResources will return null
+                urls = bundle.getResources(serviceName);
+                if (urls == null) {
+                    URL entry = bundle.getEntry(serviceName);
+                    if (entry != null) {
+                        logger.warning("Unresolved resource " + serviceName + " found in " + toString(bundle));
+                        try {
+                            bundle.start();
+                        } catch (BundleException e) {
+                            logger.log(Level.SEVERE, e.getMessage(), e);
+                        }
+                        // urls = Collections.enumeration(Arrays.asList(entry));
+                    }
+                }
+            } catch (IOException e) {
+                logger.log(Level.SEVERE, e.getMessage(), e);
+            }
+            if (urls == null) {
+                continue;
+            }
+            while (urls.hasMoreElements()) {
+                final URL url = urls.nextElement();
+
+                if (!visited.add(url)) {
+                    // The URL has already been processed
+                    continue;
+                }
+
+                if (debug) {
+                    logger.fine("Reading service provider file: " + url.toExternalForm());
+                }
+                try {
+                    // Allow privileged access to open URL stream. Add FilePermission to added to security
+                    // policy file.
+                    InputStream is;
+                    try {
+                        is = AccessController.doPrivileged(new PrivilegedExceptionAction<InputStream>() {
+                            public InputStream run() throws IOException {
+                                return url.openStream();
+                            }
+                        });
+                    } catch (PrivilegedActionException e) {
+                        throw (IOException)e.getException();
+                    }
+                    if (isPropertyFile) {
+                        // Load as a property file
+                        Properties props = new Properties();
+                        props.load(is);
+                        is.close();
+                        for (Map.Entry<Object, Object> e : props.entrySet()) {
+                            Map<String, String> attributes = new HashMap<String, String>();
+                            String key = (String)e.getKey();
+                            String value = (String)e.getValue();
+                            // Unfortunately, the xalan file only has the classname
+                            if ("".equals(value)) {
+                                value = key;
+                                key = "";
+                            }
+                            if (!"".equals(key)) {
+                                attributes.put(key, value);
+                                attributes.put("uri", key);
+                            }
+                            attributes.putAll(parseDeclaration(value));
+                            ServiceDeclarationImpl descriptor = new ServiceDeclarationImpl(bundle, url, value, attributes);
+                            descriptors.add(descriptor);
+                        }
+                        continue;
+                    }
+                    BufferedReader reader = null;
+                    try {
+                        reader = new BufferedReader(new InputStreamReader(is));
+                        int count = 0;
+                        while (true) {
+                            String line = reader.readLine();
+                            if (line == null)
+                                break;
+                            line = line.trim();
+                            if (!line.startsWith("#") && !"".equals(line)) {
+                                String reg = line.trim();
+                                if (debug) {
+                                    logger.fine("Registering service provider: " + reg);
+                                }
+
+                                Map<String, String> attributes = parseDeclaration(reg);
+                                String className = attributes.get("class");
+                                if (className == null) {
+                                    // Add a unique class name to prevent equals() from returning true
+                                    className = "_class_" + count;
+                                    count++;
+                                }
+                                ServiceDeclarationImpl descriptor =
+                                    new ServiceDeclarationImpl(bundle, url, className, attributes);
+                                descriptors.add(descriptor);
+                            }
+                        }
+                    } finally {
+                        if (reader != null) {
+                            try {
+                                reader.close();
+                            } catch (IOException e) {
+                                // Ignore
+                            }
+                        }
+                    }
+                } catch (IOException e) {
+                    logger.log(Level.SEVERE, e.getMessage(), e);
+                }
+            }
+        }
+        return descriptors;
+    }
+    
+    public ClassLoader getContextClassLoader() {
+        // Get the bundle classloader for the extensibility bundle that has DynamicImport-Package *
+        return getClass().getClassLoader();
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoveryActivator.java b/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoveryActivator.java
new file mode 100644
index 0000000000..4ccaf57c19
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscoveryActivator.java
@@ -0,0 +1,44 @@
+/*
+ * 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.tuscany.sca.extensibility.equinox;
+
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+
+/**
+ * The Bundle Activator that creates the Equinox-based service discoverer 
+ *
+ * @version $Rev$ $Date$
+ */
+public class EquinoxServiceDiscoveryActivator implements BundleActivator {
+    // private static final Logger logger = Logger.getLogger(EquinoxServiceDiscoveryActivator.class.getName());
+
+    public void start(BundleContext context) throws Exception {
+        EquinoxServiceDiscoverer discoverer = new EquinoxServiceDiscoverer(context);
+        ServiceDiscovery.getInstance().setServiceDiscoverer(discoverer);
+        // logger.info("Equinox-based service discoverer is now configured.");
+    }
+
+    public void stop(BundleContext context) throws Exception {
+        ServiceDiscovery.getInstance().setServiceDiscoverer(null);
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/OSGiExtensionPointRegistry.java b/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/OSGiExtensionPointRegistry.java
new file mode 100644
index 0000000000..4b5fffff01
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/main/java/org/apache/tuscany/sca/extensibility/equinox/OSGiExtensionPointRegistry.java
@@ -0,0 +1,106 @@
+/*
+ * 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.tuscany.sca.extensibility.equinox;
+
+import java.util.Dictionary;
+import java.util.Hashtable;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.BundleException;
+import org.osgi.framework.ServiceReference;
+import org.osgi.framework.ServiceRegistration;
+
+/**
+ * OSGi ServiceRegistry based extension point registry
+ */
+public class OSGiExtensionPointRegistry extends DefaultExtensionPointRegistry {
+    private Map<Class<?>, ServiceRegistration> registrations = new ConcurrentHashMap<Class<?>, ServiceRegistration>();
+    private BundleContext bundleContext;
+
+    public OSGiExtensionPointRegistry(BundleContext bundleContext) {
+        super(ServiceDiscovery.getInstance(new EquinoxServiceDiscoverer(bundleContext)));
+        this.bundleContext = bundleContext;
+    }
+
+    @Override
+    protected void registerExtensionPoint(Class<?> extensionPointType,
+                                          Object extensionPoint,
+                                          ServiceDeclaration declaration) {
+        BundleContext context = bundleContext;
+        if (declaration instanceof EquinoxServiceDiscoverer.ServiceDeclarationImpl) {
+            EquinoxServiceDiscoverer.ServiceDeclarationImpl declarationImpl =
+                (EquinoxServiceDiscoverer.ServiceDeclarationImpl)declaration;
+            Bundle bundle = declarationImpl.getBundle();
+            /**
+             * If this bundle is not in the STARTING, ACTIVE, or STOPPING states or this bundle
+             * is a fragment bundle, then this bundle has no valid BundleContext. This method will
+             * return null if this bundle has no valid BundleContext
+             */
+            if ((bundle.getState() & (Bundle.ACTIVE | Bundle.STARTING)) == 0) {
+                try {
+                    bundle.start();
+                } catch (BundleException e) {
+                    throw new IllegalStateException(e);
+                }
+            }
+            context = bundle.getBundleContext();
+        }
+        Dictionary<Object, Object> props = new Hashtable<Object, Object>();
+        ServiceRegistration registration = context.registerService(extensionPointType.getName(), extensionPoint, props);
+        registrations.put(extensionPointType, registration);
+        super.registerExtensionPoint(extensionPointType, extensionPoint, declaration);
+    }
+
+    @Override
+    protected void unregisterExtensionPoint(Class<?> i) {
+        ServiceRegistration registration = registrations.remove(i);
+        if (registration != null) {
+            try {
+                registration.unregister();
+            } catch (IllegalStateException e) {
+                // The service has been unregistered, ignore it
+            }        
+        }
+        super.unregisterExtensionPoint(i);
+    }
+
+    @Override
+    public synchronized void stop() {
+        for (ServiceRegistration reg : registrations.values()) {
+            try {
+                ServiceReference ref = reg.getReference();
+                if (ref != null) {
+                    reg.unregister();
+                }
+            } catch (IllegalStateException e) {
+                // Ignore it, the service has been unregistered when the owning bundle stops
+            }
+        }
+        registrations.clear();
+        super.stop();
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxHostTestCase.java b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxHostTestCase.java
new file mode 100644
index 0000000000..aa9cd50abc
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxHostTestCase.java
@@ -0,0 +1,95 @@
+/*
+ * 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.tuscany.sca.extensibility.equinox;
+
+import java.util.Dictionary;
+import java.util.Enumeration;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+
+/**
+ * Test start/stop the Equinox runtime.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class EquinoxHostTestCase {
+    @Test
+    public void testStartThenStop() {
+        TestEquinoxHost host = new TestEquinoxHost();
+        BundleContext context = host.start();
+        Assert.assertNotNull(context);
+        for (Bundle b : context.getBundles()) {
+            System.out.println(toString(b, false));
+        }
+        host.stop();
+    }
+
+    @Test
+    public void testStartTwice() {
+        TestEquinoxHost host = new TestEquinoxHost();
+        host.start();
+        try {
+            host.start();
+            Assert.fail();
+        } catch (IllegalStateException e) {
+            Assert.assertTrue(IllegalStateException.class.isInstance(e.getCause()));
+        } finally {
+            host.stop();
+        }
+    }
+
+    public static String toString(Bundle b, boolean verbose) {
+        StringBuffer sb = new StringBuffer();
+        sb.append(b.getBundleId()).append(" ").append(b.getSymbolicName());
+        int s = b.getState();
+        if ((s & Bundle.UNINSTALLED) != 0) {
+            sb.append(" UNINSTALLED");
+        }
+        if ((s & Bundle.INSTALLED) != 0) {
+            sb.append(" INSTALLED");
+        }
+        if ((s & Bundle.RESOLVED) != 0) {
+            sb.append(" RESOLVED");
+        }
+        if ((s & Bundle.STARTING) != 0) {
+            sb.append(" STARTING");
+        }
+        if ((s & Bundle.STOPPING) != 0) {
+            sb.append(" STOPPING");
+        }
+        if ((s & Bundle.ACTIVE) != 0) {
+            sb.append(" ACTIVE");
+        }
+
+        sb.append(" ").append(b.getLocation());
+        if (verbose) {
+            Dictionary<Object, Object> dict = b.getHeaders();
+            Enumeration<Object> keys = dict.keys();
+            while (keys.hasMoreElements()) {
+                Object key = keys.nextElement();
+                sb.append(" ").append(key).append("=").append(dict.get(key));
+            }
+        }
+        return sb.toString();
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscovererTestCase.java b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscovererTestCase.java
new file mode 100644
index 0000000000..deb4221f4f
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/EquinoxServiceDiscovererTestCase.java
@@ -0,0 +1,155 @@
+/*
+ * 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.tuscany.sca.extensibility.equinox;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.jar.JarInputStream;
+import java.util.jar.Manifest;
+
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+
+/**
+ * Test the Equinox service discoverer.
+ *
+ * @version $Rev$ $Date$
+ */
+public class EquinoxServiceDiscovererTestCase {
+    private static EquinoxServiceDiscoverer discoverer;
+    private static Bundle testBundle;
+    private static TestEquinoxHost host;
+
+    private static String getState(Bundle b) {
+        StringBuffer sb = new StringBuffer();
+        int s = b.getState();
+        if ((s & Bundle.UNINSTALLED) != 0) {
+            sb.append("UNINSTALLED ");
+        }
+        if ((s & Bundle.INSTALLED) != 0) {
+            sb.append("INSTALLED ");
+        }
+        if ((s & Bundle.RESOLVED) != 0) {
+            sb.append("RESOLVED ");
+        }
+        if ((s & Bundle.STARTING) != 0) {
+            sb.append("STARTING ");
+        }
+        if ((s & Bundle.STOPPING) != 0) {
+            sb.append("STOPPING ");
+        }
+        if ((s & Bundle.ACTIVE) != 0) {
+            sb.append("ACTIVE ");
+        }
+        return sb.toString();
+
+    }
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        host = new TestEquinoxHost();
+        BundleContext context = host.start();
+
+        InputStream is = EquinoxServiceDiscovererTestCase.class.getResourceAsStream("/test-bundle.jar");
+        testBundle = context.installBundle("test-bundle", is);
+        is.close();
+        discoverer = new EquinoxServiceDiscoverer(context);
+        File dep = new File("target/bundles");
+        List<Bundle> bundles = new ArrayList<Bundle>();
+        if(dep.isDirectory()) {
+        for (File f : dep.listFiles()) {
+                BufferedInputStream bis = new BufferedInputStream(new FileInputStream(f));
+                JarInputStream jis = new JarInputStream(bis);
+                Manifest manifest = jis.getManifest();
+                if (manifest == null || manifest.getMainAttributes().getValue("Bundle-Name") == null) {
+                    bis.close();
+                    continue;
+                }
+                bis.close();
+                bis = new BufferedInputStream(new FileInputStream(f));
+                Bundle b = context.installBundle(f.getName(), bis);
+                System.out.println("Installed " + b.getSymbolicName() + " [" + getState(b) + "]");
+                bundles.add(b);
+                bis.close();
+            }
+        }
+        for (Bundle b : bundles) {
+            b.start();
+            System.out.println("Started "+b.getSymbolicName() + " [" + getState(b) + "]");
+            /*
+            // Get the Platform.getExtensionRegistry()
+            if ("org.eclipse.core.runtime".equals(b.getSymbolicName())) {
+                // The Platform class loaded by the bundle is different that the one
+                // on the classpath
+                Class<?> cls = b.loadClass("org.eclipse.core.runtime.Platform");
+                Method m = cls.getMethod("getExtensionRegistry");
+                Object reg = m.invoke(cls);
+                System.out.println(reg);
+            }
+            */
+        }
+    }
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @AfterClass
+    public static void tearDownAfterClass() throws Exception {
+        if (testBundle != null) {
+            // Uninstall the bundle to clean up the cache
+            testBundle.uninstall();
+        }
+        host.stop();
+        System.out.println("Done");
+    }
+
+    @Test
+    public void testDiscovery() throws IOException {
+        Collection<ServiceDeclaration> descriptors = discoverer.getServiceDeclarations("test.TestService");
+        Assert.assertEquals(1, descriptors.size());
+        descriptors = discoverer.getServiceDeclarations("notthere");
+        Assert.assertEquals(0, descriptors.size());
+    }
+
+    @Test
+    public void testDiscoveryFirst() throws IOException {
+        ServiceDeclaration descriptor = discoverer.getServiceDeclaration("test.TestService");
+        Assert.assertNotNull(descriptor);
+        descriptor = discoverer.getServiceDeclaration("notthere");
+        Assert.assertNull(descriptor);
+    }
+
+
+}
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/TestEquinoxHost.java b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/TestEquinoxHost.java
new file mode 100644
index 0000000000..566cd6e1a5
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/java/org/apache/tuscany/sca/extensibility/equinox/TestEquinoxHost.java
@@ -0,0 +1,77 @@
+/*
+ * 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.tuscany.sca.extensibility.equinox;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
+import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.launch.Framework;
+import org.osgi.framework.launch.FrameworkFactory;
+
+/**
+ * A test host that starts/stops Equinox.
+ *
+ * @version $Rev$ $Date$
+ */
+public class TestEquinoxHost {
+    private Framework framework;
+
+    private BundleContext init() throws Exception {
+        if (framework != null) {
+            throw new IllegalStateException("The framework is started already");
+        }
+        ServiceDeclaration sd = ServiceDiscovery.getInstance().getServiceDeclaration(FrameworkFactory.class.getName());
+        Class<?> factoryCls = sd.loadClass();
+        FrameworkFactory factory = (FrameworkFactory)factoryCls.newInstance();
+        Map<Object, Object> props = new HashMap<Object, Object>();
+        props.put("osgi.clean", "true");
+        props.put("osgi.instance.area", new File("target/workspace").toURI().toString());
+        props.put("osgi.install.area", new File("target/eclipse").toURI().toString());
+        props.put("osgi.configuration.area", new File("target/eclipse").toURI().toString());
+        framework = factory.newFramework(props);
+        framework.start();
+        return framework.getBundleContext();
+    }
+
+    public BundleContext start() {
+        try {
+            return init();
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public void stop() {
+        try {
+            if (framework != null) {
+                framework.stop();
+                framework.waitForStop(2000);
+                framework = null;
+            }
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/resources/test-bundle.jar b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/resources/test-bundle.jar
new file mode 100644
index 0000000000..afee051f61
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/extensibility-equinox/src/test/resources/test-bundle.jar