Start of a binding that uses Hazelcast. The idea is that it would be used for the sca binding and use the Hazelcast based endpoint registry with Hazelcast handling all the remote communications. This avoids all the issues other bindings have with working out what the remote endpoint address is.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@924789 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 96 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/binding-hazelcast-runtime/src/main/java/org/apache/tuscany/sca/binding/hazelcast/ReferenceInvoker.java b/sca-java-2.x/trunk/modules/binding-hazelcast-runtime/src/main/java/org/apache/tuscany/sca/binding/hazelcast/ReferenceInvoker.java
new file mode 100644
index 0000000000..c96616d132
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/binding-hazelcast-runtime/src/main/java/org/apache/tuscany/sca/binding/hazelcast/ReferenceInvoker.java
@@ -0,0 +1,96 @@
+/*

+ * 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.binding.hazelcast;

+

+import java.io.IOException;

+import java.util.concurrent.Callable;

+import java.util.concurrent.ExecutorService;

+import java.util.concurrent.FutureTask;

+

+import org.apache.tuscany.sca.common.xml.dom.DOMHelper;

+import org.apache.tuscany.sca.core.ExtensionPointRegistry;

+import org.apache.tuscany.sca.core.FactoryExtensionPoint;

+import org.apache.tuscany.sca.endpoint.hazelcast.HazelcastEndpointRegistry;

+import org.apache.tuscany.sca.interfacedef.Operation;

+import org.apache.tuscany.sca.invocation.Invoker;

+import org.apache.tuscany.sca.invocation.Message;

+import org.apache.tuscany.sca.invocation.MessageFactory;

+import org.apache.tuscany.sca.runtime.DomainRegistryFactory;

+import org.apache.tuscany.sca.runtime.EndpointRegistry;

+import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory;

+import org.oasisopen.sca.ServiceRuntimeException;

+import org.w3c.dom.Document;

+import org.w3c.dom.Node;

+import org.xml.sax.SAXException;

+

+import com.hazelcast.core.DistributedTask;

+import com.hazelcast.core.Member;

+

+public class ReferenceInvoker implements Invoker {

+

+    HazelcastEndpointRegistry hzRegistry;

+    DOMHelper domHelper;

+    String serviceURI;

+    private Operation operation;

+    MessageFactory messageFactory;

+

+    public ReferenceInvoker(ExtensionPointRegistry extensionsRegistry, String serviceURI, Operation operation) {

+        this.serviceURI = serviceURI;

+        this.operation = operation;

+        DomainRegistryFactory domainRegistryFactory = ExtensibleDomainRegistryFactory.getInstance(extensionsRegistry);

+        for (EndpointRegistry r : domainRegistryFactory.getEndpointRegistries()) {

+            if (r instanceof HazelcastEndpointRegistry) {

+                hzRegistry = (HazelcastEndpointRegistry)r;

+                break;

+            }

+        }

+        this.domHelper = DOMHelper.getInstance(extensionsRegistry);

+        FactoryExtensionPoint modelFactories = extensionsRegistry.getExtensionPoint(FactoryExtensionPoint.class);

+        this.messageFactory = modelFactories.getFactory(MessageFactory.class);

+    }

+

+    public Message invoke(Message msg) {

+        Member owningMember = hzRegistry.getOwningMember(serviceURI);

+        String requestXML = getRequestXML(msg);

+        Callable<String> callable = new ServiceInvoker(serviceURI, operation.getName(), requestXML);

+        FutureTask<String> task = new DistributedTask<String>(callable, owningMember);

+        ExecutorService executorService = hzRegistry.getHazelcastInstance().getExecutorService();

+        executorService.execute(task);

+        try {

+            return getResponseNode(task.get());

+        } catch (Exception e) {

+            throw new ServiceRuntimeException(e);

+        }

+    }

+

+    private String getRequestXML(Message msg) {

+        Object[] args = msg.getBody();

+        String msgXML = domHelper.saveAsString((Node)args[0]);

+        return msgXML;

+    }

+

+    private Message getResponseNode(String responseXML) throws IOException, SAXException {

+        Document responseDOM = domHelper.load(responseXML);

+        Message msg = messageFactory.createMessage();

+        msg.setBody(responseDOM);

+        return msg;

+    }

+

+}