1 files changed, 236 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M3-RC5/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java b/tags/java/sca/2.0-M3-RC5/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java
new file mode 100644
index 0000000000..6737a16d3a
--- /dev/null
+++ b/tags/java/sca/2.0-M3-RC5/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java
@@ -0,0 +1,236 @@
+/*
+ * 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.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+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.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.core.assembly.ActivationException;
+import org.apache.tuscany.sca.core.assembly.CompositeActivator;
+import org.apache.tuscany.sca.core.invocation.ProxyFactory;
+import org.apache.tuscany.sca.node.Client;
+import org.apache.tuscany.sca.node.Node;
+import org.apache.tuscany.sca.node.NodeFinder;
+import org.apache.tuscany.sca.node.configuration.NodeConfiguration;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentContext;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+import org.oasisopen.sca.CallableReference;
+import org.oasisopen.sca.ServiceReference;
+import org.oasisopen.sca.ServiceRuntimeException;
+import org.oasisopen.sca.ServiceUnavailableException;
+
+/**
+ * An SCA Node that is managed by the NodeManager
+ */
+public class NodeImpl implements Node, Client {
+    private static final Logger logger = Logger.getLogger(NodeImpl.class.getName());
+    private ProxyFactory proxyFactory;
+    private CompositeActivator compositeActivator;
+    private NodeConfiguration configuration;
+    private NodeFactoryImpl manager;
+
+    public NodeImpl(NodeFactoryImpl manager, NodeConfiguration configuration) {
+        super();
+        this.configuration = configuration;
+        this.manager = manager;
+    }
+
+    public void destroy() {
+    }
+
+    public Node start() {
+        logger.log(Level.INFO, "Starting node: " + configuration.getURI());
+
+        manager.init();
+        manager.addNode(configuration, this);
+        this.proxyFactory = manager.proxyFactory;
+        this.compositeActivator =
+            manager.extensionPoints.getExtensionPoint(UtilityExtensionPoint.class).getUtility(CompositeActivator.class,
+                                                                                              true);
+        try {
+
+            compositeActivator.setDomainComposite(manager.configureNode(configuration));
+            for (Composite composite : compositeActivator.getDomainComposite().getIncludes()) {
+                // Activate the composite
+                compositeActivator.activate(composite);
+
+                // Start the composite
+                compositeActivator.start(composite);
+            }
+
+            NodeFinder.addNode(NodeUtil.createURI(configuration.getDomainURI()), this);
+
+            return this;
+
+        } catch (Exception e) {
+            throw new IllegalStateException(e);
+        }
+
+    }
+
+    public void stop() {
+        logger.log(Level.INFO, "Stopping node: " + configuration.getURI());
+
+        try {
+            if (compositeActivator == null) {
+                return;
+            }
+            NodeFinder.removeNode(this);
+            if( compositeActivator.getDomainComposite() != null ) {
+	            List<Composite> composites = compositeActivator.getDomainComposite().getIncludes();
+	            for (Composite composite : composites) {
+
+	                // Stop the composite
+	                compositeActivator.stop(composite);
+
+	                // Deactivate the composite
+	                compositeActivator.deactivate(composite);
+
+	            } // end for
+	            composites.clear();
+            } // end if
+
+            manager.removeNode(configuration);
+            this.compositeActivator = null;
+            this.proxyFactory = null;
+
+        } catch (ActivationException e) {
+            throw new IllegalStateException(e);
+        }
+
+    }
+
+    @SuppressWarnings("unchecked")
+    public <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException {
+        return (R)proxyFactory.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 (Composite composite : compositeActivator.getDomainComposite().getIncludes()) {
+            for (Component compositeComponent : composite.getComponents()) {
+                if (compositeComponent.getName().equals(componentName)) {
+                    component = compositeComponent;
+                }
+            }
+        }
+
+        if (component == null) {
+            throw new ServiceUnavailableException("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) {
+                        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);
+            }
+        }
+    }
+
+    public NodeConfiguration getConfiguration() {
+        return configuration;
+    }
+
+    public ExtensionPointRegistry getExtensionPoints() {
+        return manager.getExtensionPoints();
+    }
+
+    /**
+     * Get the service endpoints in this Node
+     * TODO: needs review, works for the very simple testcase but i expect there are
+     *    other endpoints to be included
+     */
+    public List<Endpoint> getServiceEndpoints() {
+        List<Endpoint> endpoints = new ArrayList<Endpoint>();
+        if (compositeActivator != null) {
+            Composite domainComposite = compositeActivator.getDomainComposite();
+            if (domainComposite != null) {
+                for (Composite composite : domainComposite.getIncludes()) {
+                    for (Component component : composite.getComponents()) {
+                        for (Service service : component.getServices()) {
+                               // MJE 28/05/2009 - changed to RuntimeComponentService from RuntimeComponentServiceImpl
+                               // - no need to access the Impl directly here
+                            if (service instanceof RuntimeComponentService) {
+                                endpoints.addAll(((RuntimeComponentService)service).getEndpoints());
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return endpoints;
+    }
+}