1 files changed, 115 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java b/sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java
new file mode 100644
index 0000000000..06786ca76d
--- /dev/null
+++ b/sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java
@@ -0,0 +1,115 @@
+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  Licensed 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.binding.celtix.handler;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.core.context.Context;
+import org.apache.tuscany.core.context.ExternalServiceContext;
+import org.apache.tuscany.core.context.QualifiedName;
+import org.apache.tuscany.core.context.ScopeContext;
+import org.apache.tuscany.core.context.TargetException;
+import org.apache.tuscany.core.message.Message;
+import org.apache.tuscany.core.wire.Interceptor;
+import org.apache.tuscany.core.wire.TargetInvoker;
+
+
+/**
+ * Responsible for invoking an external web service
+ *
+ * @version $Rev$ $Date$
+ */
+public class ExternalWebServiceTargetInvoker implements TargetInvoker {
+
+    private QualifiedName serviceName;
+    private String esName;
+    private Method method;
+    private ScopeContext container;
+
+    private ExternalServiceContext context;
+
+    /**
+     * Constructs a new ExternalWebServiceTargetInvoker.
+     */
+    public ExternalWebServiceTargetInvoker(QualifiedName servicename,
+                                           Method meth,
+                                           ScopeContext cont) {
+        assert servicename != null : "No service name specified";
+        assert meth != null : "No method specified";
+        assert cont != null : "No scope container specified";
+        this.serviceName = servicename;
+        this.esName = serviceName.getPartName();
+        this.method = meth;
+        this.container = cont;
+    }
+
+    public Object invokeTarget(Object payload) throws InvocationTargetException {
+        if (context == null) {
+            Context iContext = container.getContext(esName);
+            if (!(iContext instanceof ExternalServiceContext)) {
+                TargetException te = new TargetException("Unexpected target context type");
+                te.setIdentifier(iContext.getClass().getName());
+                te.addContextName(iContext.getName());
+                throw te;
+            }
+            context = (ExternalServiceContext)iContext;
+        }
+        ExternalWebServiceClient client = (ExternalWebServiceClient)context.getHandler();
+        if (payload != null) {
+            return client.invoke(method.getName(), (Object[])payload);
+        } else {
+            return client.invoke(method.getName(), new Object[0]);
+        }
+    }
+
+    public boolean isCacheable() {
+        return false;
+    }
+
+    public Message invoke(Message msg) {
+        try {
+            Object resp = invokeTarget(msg.getBody());
+            msg.setBody(resp);
+        } catch (InvocationTargetException e) {
+            msg.setBody(e.getCause());
+        } catch (Throwable e) {
+            msg.setBody(e);
+        }
+        return msg;
+    }
+
+    public void setNext(Interceptor next) {
+        throw new UnsupportedOperationException();
+    }
+
+    public Object clone() throws CloneNotSupportedException {
+        try {
+            ExternalWebServiceTargetInvoker invoker = (ExternalWebServiceTargetInvoker)super.clone();
+            invoker.container = container;
+            invoker.context = this.context;
+            invoker.esName = this.esName;
+            invoker.method = this.method;
+            invoker.serviceName = this.serviceName;
+            return invoker;
+        } catch (CloneNotSupportedException e) {
+            // will not happen
+            return null;
+        }
+    }
+
+}