1 files changed, 126 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6-TUSCANY-3909/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/NotificationReferenceBindingInvoker.java b/sca-java-1.x/tags/1.6-TUSCANY-3909/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/NotificationReferenceBindingInvoker.java
new file mode 100644
index 0000000000..8980fa26ff
--- /dev/null
+++ b/sca-java-1.x/tags/1.6-TUSCANY-3909/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/NotificationReferenceBindingInvoker.java
@@ -0,0 +1,126 @@
+/*
+ * 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.notification;
+
+import java.io.OutputStream;
+import java.util.HashMap;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.tuscany.sca.binding.notification.NotificationReferenceBindingProvider.SubscriberInfo;
+import org.apache.tuscany.sca.binding.notification.encoding.Constants;
+import org.apache.tuscany.sca.binding.notification.util.IOUtils;
+import org.apache.tuscany.sca.binding.notification.util.IOUtils.IOUtilsException;
+import org.apache.tuscany.sca.binding.notification.util.IOUtils.Writeable;
+import org.apache.tuscany.sca.implementation.notification.ImmutableMessage;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+
+/**
+ * Turns invoke into remote message fan-out
+ *
+ * @version $Rev$ $Date$
+ */
+public class NotificationReferenceBindingInvoker implements Invoker {
+
+    private static final Message RESPONSE = new ImmutableMessage();
+    private Operation operation;
+    
+    private NotificationReferenceBindingProvider notificationReferenceBindingProvider;
+
+    public NotificationReferenceBindingInvoker(Operation operation,
+                                               NotificationReferenceBindingProvider notificationReferenceBindingProvider) {
+        this.operation = operation;
+        this.notificationReferenceBindingProvider = notificationReferenceBindingProvider;
+    }
+    
+    public Message invoke(Message msg) {
+        Object payload = msg.getBody();
+        if (payload == null) {
+            throw new RuntimeException("Message body is null");
+        }
+        Writeable writeable = null;
+        String incomingBrokerID = null;
+        if (payload.getClass().isArray()) {
+            Object[] bodyArray = (Object[])payload;
+            if (bodyArray.length == 3) {
+                writeable = getWriteableFromByteArray((byte[])bodyArray[1]);
+                incomingBrokerID = (String)bodyArray[2];
+            } else if (bodyArray.length == 1) {
+                writeable = getWriteableFromPayload(bodyArray[0]);
+            } else {
+                throw new RuntimeException("Invalid body array size");
+            }
+        } else {
+            writeable = getWriteableFromPayload(payload);
+        }
+
+        try {
+            for (SubscriberInfo subscriber : notificationReferenceBindingProvider.getSubscribers()) {
+                // check for each subscriber's broker id and skip if equal
+                if (incomingBrokerID != null && subscriber.brokerID != null && incomingBrokerID.equals(subscriber.brokerID)) {
+                    continue;
+                }
+                HashMap<String, String> headers = new HashMap<String, String>();
+                headers.put(IOUtils.Notification_Operation, operation.getName());
+                String brokerID = notificationReferenceBindingProvider.getBrokerID();
+                if (brokerID != null) {
+                    headers.put(Constants.Broker_ID, brokerID);
+                }
+                IOUtils.sendHttpRequest(subscriber.address, headers, writeable, null);
+            }
+        } catch(Exception e) {
+            e.printStackTrace();
+            throw new RuntimeException("Sender caught exception", e);
+        }
+        return RESPONSE;
+    }
+    
+    private Writeable getWriteableFromPayload(Object payload) throws RuntimeException {
+        if (!(payload instanceof OMElement)) {
+            throw new RuntimeException("payload not OMElement");
+        }
+        final OMElement element = (OMElement)payload;
+        Writeable writeable = new Writeable() {
+            public void write(OutputStream os) throws IOUtilsException {
+                try {
+                    element.serialize(os);
+                    os.flush();
+                } catch(Exception e) {
+                    throw new IOUtilsException(e);
+                }
+            }
+        };
+        return writeable;
+    }
+
+    private Writeable getWriteableFromByteArray(final byte[] payload) {
+        Writeable writeable = new Writeable() {
+            public void write(OutputStream os) throws IOUtilsException {
+                try {
+                    os.write(payload);
+                    os.flush();
+                } catch(Exception e) {
+                    throw new IOUtilsException(e);
+                }
+            }
+        };
+        return writeable;
+    }
+}