1 files changed, 127 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/domain-hazelcast/src/main/java/org/apache/tuscany/sca/binding/hazelcast/ReferenceInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/domain-hazelcast/src/main/java/org/apache/tuscany/sca/binding/hazelcast/ReferenceInvoker.java
new file mode 100644
index 0000000000..1585684691
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/domain-hazelcast/src/main/java/org/apache/tuscany/sca/binding/hazelcast/ReferenceInvoker.java
@@ -0,0 +1,127 @@
+/*
+ * 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 javax.xml.namespace.QName;
+
+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.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.util.FaultException;
+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.registry.hazelcast.HazelcastDomainRegistry;
+import org.apache.tuscany.sca.runtime.DomainRegistryFactory;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+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 {
+
+    HazelcastDomainRegistry 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 (DomainRegistry r : domainRegistryFactory.getEndpointRegistries()) {
+            if (r instanceof HazelcastDomainRegistry) {
+                hzRegistry = (HazelcastDomainRegistry)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);
+        if (owningMember == null) {
+            throw new ServiceRuntimeException("service not found: " + serviceURI);
+        }
+        String requestXML = getRequestXML(msg);
+        Callable<String> callable = new ServiceInvoker(serviceURI, operation.getName(), requestXML);
+        FutureTask<String> task = new DistributedTask<String>(callable, owningMember);
+        ExecutorService executorService = getExecutorService();
+        executorService.execute(task);
+        try {
+            return getResponseNode(task.get());
+        } catch (Exception e) {
+            throw new ServiceRuntimeException(e);
+        }
+    }
+
+    /**
+     * Hazelcast ExecutorService can't nest invocations so use a separate ExecutorService
+     * for nested calls. See http://groups.google.com/group/hazelcast/browse_thread/thread/1cc0b943716476e9
+     */
+    private ExecutorService getExecutorService() {
+        String threadName = Thread.currentThread().getName();
+        if (!threadName.startsWith("hz.executor.") || threadName.indexOf("binding.sca.") == -1) {
+            return hzRegistry.getHazelcastInstance().getExecutorService("binding.sca.1");
+        } else {
+            String oldName = threadName.substring(threadName.lastIndexOf("binding.sca."), threadName.lastIndexOf(".thread-"));
+            int x = Integer.parseInt(oldName.substring(oldName.lastIndexOf('.') + 1));
+            return hzRegistry.getHazelcastInstance().getExecutorService(oldName.substring(0, 12) + (x + 1));
+        }
+    }
+
+    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 {
+        Message msg = messageFactory.createMessage();
+        if (responseXML.startsWith("DECLAREDEXCEPTION:")) {
+            Document responseDOM = domHelper.load(responseXML.substring(18));
+            FaultException e = new FaultException("remote exception", responseDOM);
+            Node node = ((Node)responseDOM).getFirstChild();
+            e.setFaultName(new QName(node.getNamespaceURI(), node.getLocalName()));
+            msg.setFaultBody(e);
+        } else if (responseXML.startsWith("EXCEPTION:")) {
+            throw new ServiceRuntimeException("Remote exception:" + responseXML.substring(10));
+        } else {
+            Document responseDOM = domHelper.load(responseXML);
+            msg.setBody(responseDOM);
+        }
+        return msg;
+    }
+
+}