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Diffstat (limited to 'branches/sca-android-r643746/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java')
-rw-r--r-- | branches/sca-android-r643746/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/branches/sca-android-r643746/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java b/branches/sca-android-r643746/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java new file mode 100644 index 0000000000..40ee01a434 --- /dev/null +++ b/branches/sca-android-r643746/modules/core/src/main/java/org/apache/tuscany/sca/core/invocation/CallbackInterfaceInterceptor.java @@ -0,0 +1,57 @@ +/*
+ * 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.core.invocation;
+
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.ReferenceParameters;
+import org.osoa.sca.NoRegisteredCallbackException;
+
+/**
+ * An interceptor applied to the forward direction of a wire that ensures the callback target implements the required
+ * service contract. This is required as callback targets may be set dynamically by service implementations.
+ *
+ * @version $Rev: 608822 $ $Date: 2008-01-04 04:59:56 -0800 (Fri, 04 Jan 2008) $
+ */
+public class CallbackInterfaceInterceptor implements Interceptor {
+ private Invoker next;
+
+ public CallbackInterfaceInterceptor() {
+ }
+
+ public Message invoke(Message msg) {
+ ReferenceParameters parameters = msg.getFrom().getReferenceParameters();
+ if (parameters.getCallbackObjectID() != null || parameters.getCallbackReference() != msg.getFrom()
+ .getCallbackEndpoint()) {
+ return next.invoke(msg);
+ } else {
+ throw new NoRegisteredCallbackException("Callback target does not implement the callback interface");
+ }
+ }
+
+ public void setNext(Invoker next) {
+ this.next = next;
+ }
+
+ public Invoker getNext() {
+ return next;
+ }
+
+}
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