Move Tuscany from Incubator to top level.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68

6 files changed, 874 insertions, 0 deletions

diff --git a/sandbox/axis2-1.4/modules/node2-impl/DISCLAIMER b/sandbox/axis2-1.4/modules/node2-impl/DISCLAIMER
new file mode 100644
index 0000000000..8e5c524323
--- /dev/null
+++ b/sandbox/axis2-1.4/modules/node2-impl/DISCLAIMER
@@ -0,0 +1,8 @@
+Apache Tuscany is an effort undergoing incubation at The Apache Software
+Foundation (ASF), sponsored by the Apache Web Services PMC. Incubation is
+required of all newly accepted projects until a further review indicates that
+the infrastructure, communications, and decision making process have stabilized
+in a manner consistent with other successful ASF projects. While incubation
+status is not necessarily a reflection of the completeness or stability of the
+code, it does indicate that the project has yet to be fully endorsed by the ASF.
+
diff --git a/sandbox/axis2-1.4/modules/node2-impl/LICENSE b/sandbox/axis2-1.4/modules/node2-impl/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/sandbox/axis2-1.4/modules/node2-impl/LICENSE
@@ -0,0 +1,205 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
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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
+      submitted to Licensor for inclusion in the Work by the copyright owner
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+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
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+      on behalf of whom a Contribution has been received by Licensor and
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+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      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
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   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
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+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          of the NOTICE file are for informational purposes only and
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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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.
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+   6. Trademarks. This License does not grant permission to use the trade
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diff --git a/sandbox/axis2-1.4/modules/node2-impl/NOTICE b/sandbox/axis2-1.4/modules/node2-impl/NOTICE
new file mode 100644
index 0000000000..fdfa0e9faa
--- /dev/null
+++ b/sandbox/axis2-1.4/modules/node2-impl/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2008 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/sandbox/axis2-1.4/modules/node2-impl/pom.xml b/sandbox/axis2-1.4/modules/node2-impl/pom.xml
new file mode 100644
index 0000000000..0260bbebf0
--- /dev/null
+++ b/sandbox/axis2-1.4/modules/node2-impl/pom.xml
@@ -0,0 +1,100 @@
+<?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-incubating-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <artifactId>tuscany-node2-impl</artifactId>
+    <name>Apache Tuscany SCA Node Implementation</name>
+
+    <dependencies>
+ 
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-assembly</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+        </dependency>
+        
+         <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-contribution</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+        </dependency>  
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-node2-api</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+        </dependency>          
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-node</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-host-embedded</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-assembly-xml</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-implementation-node-xml</artifactId>
+            <version>2.0-incubating-SNAPSHOT</version>
+            <scope>runtime</scope>
+        </dependency>
+        
+    </dependencies>
+
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+
+                <configuration>
+                    <instructions>
+                        <Bundle-Version>${tuscany.version}</Bundle-Version>
+                        <Bundle-SymbolicName>org.apache.tuscany.sca.node2.impl</Bundle-SymbolicName>
+                        <Bundle-Description>${pom.name}</Bundle-Description>
+                        <Export-Package>org.apache.tuscany.sca.node*</Export-Package>
+                    </instructions>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
diff --git a/sandbox/axis2-1.4/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeFactoryImpl.java b/sandbox/axis2-1.4/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeFactoryImpl.java
new file mode 100644
index 0000000000..a37009895c
--- /dev/null
+++ b/sandbox/axis2-1.4/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeFactoryImpl.java
@@ -0,0 +1,49 @@
+/*
+ * 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.node.impl;
+
+import org.apache.tuscany.sca.node.SCANode2;
+import org.apache.tuscany.sca.node.SCANode2Factory;
+
+/**
+ * Default implementation of an SCA node factory.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class NodeFactoryImpl extends SCANode2Factory {
+    
+    public NodeFactoryImpl() {
+    }
+
+    @Override
+    public SCANode2 createSCANode(String configurationURI) {
+        return new NodeImpl(configurationURI);
+    }
+    
+    @Override
+    public SCANode2 createSCANode(String compositeURI, SCAContribution... contributions) {
+        return new NodeImpl(compositeURI, contributions);
+    }
+
+    @Override
+    public SCANode2 createSCANode(String compositeURI, String compositeContent, SCAContribution... contributions) {
+        return new NodeImpl(compositeURI, compositeContent, contributions);
+    }
+}
diff --git a/sandbox/axis2-1.4/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java b/sandbox/axis2-1.4/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java
new file mode 100644
index 0000000000..65ee89253a
--- /dev/null
+++ b/sandbox/axis2-1.4/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java
@@ -0,0 +1,506 @@
+ /*
+ * 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.node.impl;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.InputStream;
+import java.io.StringReader;
+import java.net.URI;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.CompositeService;
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.ContributionFactory;
+import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint;
+import org.apache.tuscany.sca.contribution.service.ContributionService;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.assembly.ActivationException;
+import org.apache.tuscany.sca.core.assembly.CompositeActivator;
+import org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime;
+import org.apache.tuscany.sca.implementation.node.ConfiguredNodeImplementation;
+import org.apache.tuscany.sca.implementation.node.NodeImplementationFactory;
+import org.apache.tuscany.sca.node.SCAClient;
+import org.apache.tuscany.sca.node.SCANode2;
+import org.apache.tuscany.sca.node.SCANode2Factory.SCAContribution;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentContext;
+import org.osoa.sca.CallableReference;
+import org.osoa.sca.ServiceReference;
+import org.osoa.sca.ServiceRuntimeException;
+
+/**
+ * A local representation of the SCADomain running on a single node
+ * 
+ * @version $Rev$ $Date$
+ */
+public class NodeImpl implements SCANode2, SCAClient {
+	
+    private static final Logger logger = Logger.getLogger(NodeImpl.class.getName());
+	     
+    // The node configuration name, used for logging
+    private String configurationName;
+    
+    // The Tuscany runtime that does the hard work
+    private ReallySmallRuntime runtime;
+    private CompositeActivator compositeActivator;
+    private XMLInputFactory inputFactory;
+    private ModelFactoryExtensionPoint modelFactories;
+    private StAXArtifactProcessorExtensionPoint artifactProcessors;
+
+    // The composite loaded into this node
+    private Composite composite; 
+    
+    /** 
+     * Constructs a new SCA node.
+     *  
+     * @param configuration the the node configuration information.
+     */
+    NodeImpl(ConfiguredNodeImplementation configuration) {
+        configurationName = configuration.getURI();
+        logger.log(Level.INFO, "Creating node: " + configuration.getURI());               
+
+        try {
+            // Initialize the runtime
+            initRuntime();
+            
+            URL configurationURL = new URL(configuration.getURI());
+
+            // Resolve contribution URLs
+            for (Contribution contribution: configuration.getContributions()) {
+                URL contributionURL = new URL(configurationURL, contribution.getLocation());
+                contribution.setLocation(contributionURL.toString());
+            }
+            
+            // Resolve composite URL
+            URL compositeURL = new URL(configurationURL, configuration.getComposite().getURI());
+            configuration.getComposite().setURI(compositeURL.toString());
+
+            // Configure the node
+            configureNode(configuration);
+
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }        
+    }
+
+    /** 
+     * Constructs a new SCA node.
+     *  
+     * @param configurationURI the URI of the node configuration information.
+     */
+    NodeImpl(String configurationURI) {
+        configurationName = configurationURI;
+        logger.log(Level.INFO, "Creating node: " + configurationName);               
+
+        try {
+            // Initialize the runtime
+            initRuntime();
+            
+            // Read the node configuration feed
+            StAXArtifactProcessor<ConfiguredNodeImplementation> configurationProcessor = artifactProcessors.getProcessor(ConfiguredNodeImplementation.class);
+            URL configurationURL = new URL(configurationURI);
+            InputStream is = configurationURL.openStream();
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(is);
+            reader.nextTag();
+            ConfiguredNodeImplementation configuration = configurationProcessor.read(reader);
+            is.close();
+            
+            // Resolve contribution URLs
+            for (Contribution contribution: configuration.getContributions()) {
+                URL contributionURL = new URL(configurationURL, contribution.getLocation());
+                contribution.setLocation(contributionURL.toString());
+            }
+            
+            // Resolve composite URL
+            URL compositeURL = new URL(configurationURL, configuration.getComposite().getURI());
+            configuration.getComposite().setURI(compositeURL.toString());
+
+            // Configure the node
+            configureNode(configuration);
+
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }        
+    }
+    
+    /** 
+     * Constructs a new SCA node.
+     *  
+     * @param compositeURI
+     * @param contributions
+     */
+    NodeImpl(String compositeURI, SCAContribution[] contributions) {
+        configurationName = compositeURI;
+        logger.log(Level.INFO, "Creating node: " + configurationName);               
+
+        try {
+            // Initialize the runtime
+            initRuntime();
+            
+            // Create a node configuration
+            NodeImplementationFactory nodeImplementationFactory = modelFactories.getFactory(NodeImplementationFactory.class);
+            ConfiguredNodeImplementation configuration = nodeImplementationFactory.createConfiguredNodeImplementation();
+            
+            // Create composite model
+            AssemblyFactory assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+            Composite composite = assemblyFactory.createComposite();
+            composite.setURI(compositeURI);
+            composite.setUnresolved(true);
+            configuration.setComposite(composite);
+            
+            // Create contribution models
+            ContributionFactory contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+            for (SCAContribution c: contributions) {
+                Contribution contribution = contributionFactory.createContribution();
+                contribution.setURI(c.getURI());
+                contribution.setLocation(c.getLocation());
+                contribution.setUnresolved(true);
+                configuration.getContributions().add(contribution);
+            }
+
+            // Configure the node
+            configureNode(configuration);
+
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }        
+    }
+    
+    /** 
+     * Constructs a new SCA node.
+     *  
+     * @param compositeURI
+     * @param compositeContent
+     * @param contributions
+     */
+    NodeImpl(String compositeURI, String compositeContent, SCAContribution[] contributions) {
+        configurationName = compositeURI;
+        logger.log(Level.INFO, "Creating node: " + configurationName);               
+
+        try {
+            // Initialize the runtime
+            initRuntime();
+            
+            // Create a node configuration
+            NodeImplementationFactory nodeImplementationFactory = modelFactories.getFactory(NodeImplementationFactory.class);
+            ConfiguredNodeImplementation configuration = nodeImplementationFactory.createConfiguredNodeImplementation();
+            
+            // Read the composite model
+            StAXArtifactProcessor<Composite> compositeProcessor = artifactProcessors.getProcessor(Composite.class);
+            URL compositeURL = new URL(compositeURI);
+            logger.log(Level.INFO, "Loading composite: " + compositeURL);
+            InputStream is = new ByteArrayInputStream(compositeContent.getBytes());
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(compositeContent));
+            Composite composite = compositeProcessor.read(reader);
+            configuration.setComposite(composite);
+            
+            // Create contribution models
+            ContributionFactory contributionFactory = modelFactories.getFactory(ContributionFactory.class);
+            for (SCAContribution c: contributions) {
+                Contribution contribution = contributionFactory.createContribution();
+                contribution.setURI(c.getURI());
+                contribution.setLocation(c.getLocation());
+                contribution.setUnresolved(true);
+                configuration.getContributions().add(contribution);
+            }
+
+            // Configure the node
+            configureNode(configuration);
+
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }        
+    }
+    
+    /**
+     * Initialize the Tuscany runtime.
+     * 
+     * @throws Exception
+     */
+    private void initRuntime() throws Exception {
+
+        // Create a node runtime
+        runtime = new ReallySmallRuntime(Thread.currentThread().getContextClassLoader());
+        runtime.start();
+        
+        // Get the various factories we need
+        ExtensionPointRegistry registry = runtime.getExtensionPointRegistry();
+        modelFactories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class);
+        inputFactory = modelFactories.getFactory(XMLInputFactory.class);
+
+        // Create the required artifact processors
+        artifactProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
+        
+        // Save the composite activator
+        compositeActivator = runtime.getCompositeActivator();
+    }
+    
+    private void configureNode(ConfiguredNodeImplementation configuration) throws Exception {
+
+        // Find if any contribution JARs already available locally on the classpath
+        Map<String, URL> localContributions = localContributions();
+
+        // Load the specified contributions
+        ContributionService contributionService = runtime.getContributionService();
+        List<Contribution> contributions = new ArrayList<Contribution>();
+        for (Contribution contribution: configuration.getContributions()) {
+            URI uri = URI.create(contribution.getLocation());
+            if (uri.getScheme() == null) {
+                uri = new File(contribution.getLocation()).toURI();
+            }
+            URL contributionURL = uri.toURL();
+
+            // Extract contribution file name
+            String file =contributionURL.getPath();
+            int i = file.lastIndexOf('/');
+            if (i != -1 && i < file.length() -1 ) {
+                file = file.substring(i +1);
+                
+                // If we find the local contribution file on the classpath, use it in
+                // place of the original contribution URL
+                URL localContributionURL = localContributions.get(file);
+                if (localContributionURL != null) {
+                    contributionURL = localContributionURL;
+                }
+            }
+            
+            // Load the contribution
+            logger.log(Level.INFO, "Loading contribution: " + contributionURL);
+            contributions.add(contributionService.contribute(contribution.getURI(), contributionURL, false));
+        }
+        
+        // Load the specified composite
+        StAXArtifactProcessor<Composite> compositeProcessor = artifactProcessors.getProcessor(Composite.class);
+        if (configuration.getComposite().getName() == null) {
+            URI uri = URI.create(configuration.getComposite().getURI());
+            if (uri.getScheme() == null) {
+                uri = new File(configuration.getComposite().getURI()).toURI();
+            }
+            URL compositeURL = uri.toURL();
+            logger.log(Level.INFO, "Loading composite: " + compositeURL);
+            InputStream is = compositeURL.openStream();
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(is);
+            composite = compositeProcessor.read(reader);
+        } else {
+            composite = configuration.getComposite();
+        }
+        
+        // Resolve it within the context of the first contribution
+        Contribution mainContribution = contributions.get(contributions.size()-1);
+        compositeProcessor.resolve(composite, mainContribution.getModelResolver());
+            
+        // Create a top level composite to host our composite
+        // This is temporary to make the activator happy
+        AssemblyFactory assemblyFactory = runtime.getAssemblyFactory();
+        Composite tempComposite = assemblyFactory.createComposite();
+        tempComposite.setName(new QName("http://tempuri.org", "temp"));
+        tempComposite.setURI("http://tempuri.org");
+        
+        // Include the node composite in the top-level composite 
+        tempComposite.getIncludes().add(composite);
+        
+        // set the top level composite on the composite activator as 
+        // logic in callable reference resolution relies on this being 
+        // available
+        compositeActivator.setDomainComposite(tempComposite);
+        
+        // Build the composite
+        runtime.buildComposite(composite);
+    }
+    
+    public void start() {
+        logger.log(Level.INFO, "Starting node: " + configurationName);               
+        
+        try {
+            
+            // Activate the composite
+            compositeActivator.activate(composite);
+            
+            // Start the composite
+            compositeActivator.start(composite);
+            
+        } catch (ActivationException e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+    
+    public void stop() {
+        logger.log(Level.INFO, "Stopping node: " + configurationName);               
+        
+        try {
+            
+            // Stop the composite
+            compositeActivator.stop(composite);
+            
+            // Deactivate the composite
+            compositeActivator.deactivate(composite);
+            
+        } catch (ActivationException e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+    
+    public <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException {
+        return (R)runtime.getProxyFactory().cast(target);
+    }
+    
+    public <B> B getService(Class<B> businessInterface, String serviceName) {
+        
+        ServiceReference<B> serviceReference = getServiceReference(businessInterface, serviceName);
+        if (serviceReference == null) {
+            throw new ServiceRuntimeException("Service not found: " + serviceName);
+        }
+        return serviceReference.getService();
+    }
+
+    public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String name) {
+        
+        // Extract the component name
+        String componentName;
+        String serviceName;
+        int i = name.indexOf('/');
+        if (i != -1) {
+            componentName = name.substring(0, i);
+            serviceName = name.substring(i + 1);
+
+        } else {
+            componentName = name;
+            serviceName = null;
+        }
+
+        // Lookup the component 
+        Component component = null;
+         
+        for (Component compositeComponent: composite.getComponents()) {
+            if (compositeComponent.getName().equals(componentName)) {
+                component = compositeComponent;
+            }
+        }
+       
+        if (component == null) {
+            throw new ServiceRuntimeException("The service " + name + " has not been contributed to the domain");
+        }
+        RuntimeComponentContext componentContext = null;
+
+        // If the component is a composite, then we need to find the
+        // non-composite component that provides the requested service
+        if (component.getImplementation() instanceof Composite) {
+            for (ComponentService componentService : component.getServices()) {
+                if (serviceName == null || serviceName.equals(componentService.getName())) {
+                    CompositeService compositeService = (CompositeService)componentService.getService();
+                    if (compositeService != null) {
+                        if (serviceName != null) {
+                            serviceName = "$promoted$." + serviceName;
+                        }
+                        componentContext =
+                            ((RuntimeComponent)compositeService.getPromotedComponent()).getComponentContext();
+                        return componentContext.createSelfReference(businessInterface, compositeService.getPromotedService());
+                    }
+                    break;
+                }
+            }
+            // No matching service found
+            throw new ServiceRuntimeException("Composite service not found: " + name);
+        } else {
+            componentContext = ((RuntimeComponent)component).getComponentContext();
+            if (serviceName != null) {
+                return componentContext.createSelfReference(businessInterface, serviceName);
+            } else {
+                return componentContext.createSelfReference(businessInterface);
+            }
+        }
+    }    
+
+    /**
+     * Returns the extension point registry used by this node.
+     * 
+     * @return
+     */
+    public ExtensionPointRegistry getExtensionPointRegistry() {
+        return runtime.getExtensionPointRegistry();
+    }
+    
+    /**
+     * Returns the composite being run by this node.
+     * 
+     * @return
+     */
+    public Composite getComposite() {
+        return composite;
+    }    
+
+    /**
+     * Returns contribution JARs available on the classpath.
+     * 
+     * @return
+     */
+    private static Map<String, URL> localContributions () {
+        Map<String, URL> localContributions = new HashMap<String, URL>();
+        collectJARs(localContributions, Thread.currentThread().getContextClassLoader());
+        return localContributions;
+    }
+    
+    /**
+     * Collect JARs on the classpath of a URLClassLoader
+     * @param urls
+     * @param cl
+     */
+    private static void collectJARs(Map<String, URL> urls, ClassLoader cl) {
+        if (cl == null) {
+            return;
+        }
+        
+        // Collect JARs from the URLClassLoader's classpath
+        if (cl instanceof URLClassLoader) {
+            URL[] jarURLs = ((URLClassLoader)cl).getURLs();
+            if (jarURLs != null) {
+                for (URL jarURL: jarURLs) {
+                    String file =jarURL.getPath();
+                    int i = file.lastIndexOf('/');
+                    if (i != -1 && i < file.length() -1 ) {
+                        file = file.substring(i +1);
+                        urls.put(file, jarURL);
+                    }
+                }
+            }
+        }
+        
+        // Collect JARs from the parent ClassLoader
+        collectJARs(urls, cl.getParent());
+    }
+}