Add the remoteEndpoints configuration for node.xml to define statically-configured remote endpoints

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1366125 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 134 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/configuration/xml/RemoteEndpointsProcessor.java b/sca-java-2.x/trunk/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/configuration/xml/RemoteEndpointsProcessor.java
new file mode 100644
index 0000000000..dc4b79e099
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/configuration/xml/RemoteEndpointsProcessor.java
@@ -0,0 +1,134 @@
+/*
+ * 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.configuration.xml;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+import org.apache.tuscany.sca.assembly.Binding;
+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.Endpoint;
+import org.apache.tuscany.sca.assembly.xml.BaseAssemblyProcessor;
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessor;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * A StaX processor for remote endpoints
+ */
+public class RemoteEndpointsProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor<RemoteEndpoints> {
+    private final static String ENDPOINT = "remoteEndpoints";
+    private final static QName ENDPOINT_QNAME = new QName(Constants.SCA11_TUSCANY_NS, ENDPOINT);
+
+    private ExtensionPointRegistry registry;
+
+    public RemoteEndpointsProcessor(ExtensionPointRegistry registry,
+                                    StAXArtifactProcessor extensionProcessor,
+                                    StAXAttributeProcessor extensionAttributeProcessor) {
+
+        super(modelFactories(registry), extensionProcessor);
+        this.registry = registry;
+    }
+
+    /**
+     * Returns the model factory extension point to use.
+     *
+     * @param extensionPoints
+     * @return
+     */
+    private static FactoryExtensionPoint modelFactories(ExtensionPointRegistry extensionPoints) {
+        return extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+    }
+
+    public QName getArtifactType() {
+        return ENDPOINT_QNAME;
+    }
+
+    public RemoteEndpoints read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException,
+        XMLStreamException {
+        RemoteEndpoints endpoints = new RemoteEndpoints();
+        if (reader.getEventType() == XMLStreamConstants.START_DOCUMENT) {
+            reader.nextTag();
+        }
+        if (reader.getEventType() == XMLStreamConstants.START_ELEMENT && ENDPOINT_QNAME.equals(reader.getName())) {
+            // Skip the "endpoint" element wrapper
+            reader.nextTag();
+        }
+        Object model = extensionProcessor.read(reader, context);
+        if (model instanceof Composite) {
+            Composite composite = (Composite)model;
+            for (Component component : composite.getComponents()) {
+                if (component.getURI() == null) {
+                    // Default to the component name as the uri
+                    component.setURI(component.getName());
+                }
+                for (ComponentService service : component.getServices()) {
+                    for (Binding binding : service.getBindings()) {
+                        Endpoint endpoint = assemblyFactory.createEndpoint();
+                        endpoint.setComponent(component);
+                        endpoint.setService(service);
+                        endpoint.setBinding(binding);
+
+                        // retrieve the stash of intents and policy sets from the component
+                        endpoint.getRequiredIntents().addAll(component.getRequiredIntents());
+                        endpoint.getPolicySets().addAll(component.getPolicySets());
+
+                        endpoints.add(endpoint);
+                    }
+                }
+            }
+        }
+        return endpoints;
+    }
+
+    public void write(RemoteEndpoints model, XMLStreamWriter writer, ProcessorContext context)
+        throws ContributionWriteException, XMLStreamException {
+
+    }
+
+    public Class<RemoteEndpoints> getModelType() {
+        return RemoteEndpoints.class;
+    }
+
+    public void resolve(RemoteEndpoints model, ModelResolver resolver, ProcessorContext context)
+        throws ContributionResolveException {
+        // the only thing we'll resolve here is the policy model as the endpoint 
+        // matching algorithm needs to look inside the policy model
+
+        for (Endpoint endpoint : model) {
+            for (PolicySet policySet : endpoint.getPolicySets()) {
+                extensionProcessor.resolve(policySet, resolver, context);
+            }
+        }
+    }
+}