diff options
Diffstat (limited to 'sca-java-1.x/tags/1.6/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringInvoker.java')
-rw-r--r-- | sca-java-1.x/tags/1.6/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringInvoker.java | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringInvoker.java b/sca-java-1.x/tags/1.6/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringInvoker.java new file mode 100644 index 0000000000..3bf68a689c --- /dev/null +++ b/sca-java-1.x/tags/1.6/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/invocation/SpringInvoker.java @@ -0,0 +1,124 @@ +/*
+ * 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.implementation.spring.invocation;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.sca.implementation.spring.SpringBeanElement;
+import org.apache.tuscany.sca.implementation.spring.SpringImplementation;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ * Initial implementation of a Spring bean invoker
+ * @version $Rev: 511195 $ $Date: 2007-02-24 02:29:46 +0000 (Sat, 24 Feb 2007) $
+ */
+public class SpringInvoker implements Invoker {
+
+ private Method theMethod = null;
+ private Object bean;
+ private SpringBeanElement beanElement;
+ private boolean badInvoker = false;
+
+ private SpringContextStub springContext;
+ private Operation operation;
+
+ /**
+ * SpringInvoker constructor
+ * @param component - the Spring component to invoke
+ * @param service - the service to invoke
+ * @param operation - the operation to invoke
+ */
+ public SpringInvoker(RuntimeComponent component,
+ SpringContextStub springContext,
+ RuntimeComponentService service,
+ Operation operation) {
+
+ this.springContext = springContext;
+ this.operation = operation;
+
+ // From the component and the service, identify the Spring Bean which is the target
+ SpringImplementation theImplementation = (SpringImplementation)component.getImplementation();
+ beanElement = theImplementation.getBeanFromService(service.getService());
+
+ if (beanElement == null) {
+ badInvoker = true;
+ return;
+ }
+
+ } // end constructor SpringInvoker
+
+ // Lazy-load the method to avoid timing problems with the Spring Context
+ private void setupMethod() throws SpringInvocationException{
+ try {
+ bean = springContext.getBean(beanElement.getId());
+ Class<?> beanClass = bean.getClass();
+ theMethod = JavaInterfaceUtil.findMethod(beanClass, operation);
+ //System.out.println("SpringInvoker - found method " + theMethod.getName() );
+ } catch (NoSuchMethodException e) {
+ throw new SpringInvocationException(e);
+ }
+ }
+
+ private Object doInvoke(Object payload) throws SpringInvocationException {
+ if (theMethod == null)
+ setupMethod();
+
+ if (badInvoker)
+ throw new SpringInvocationException("Spring invoker incorrectly configured");
+ // Invoke the method on the Spring bean using the payload, returning the results
+ try {
+ Object ret;
+
+ if (payload != null && !payload.getClass().isArray()) {
+ ret = theMethod.invoke(bean, payload);
+ } else {
+ ret = theMethod.invoke(bean, (Object[])payload);
+ }
+ return ret;
+ } catch (InvocationTargetException e) {
+ throw new SpringInvocationException("Spring invoker invoke method '"+ theMethod.getName()+"' error.",e.getCause());
+ } catch (Exception e) {
+ throw new SpringInvocationException("Spring invoker invoke method '"+ theMethod.getName()+"' error.",e);
+ }
+
+ } // end method doInvoke
+
+ /**
+ * @param msg the message to invoke on the target bean
+ */
+ public Message invoke(Message msg) {
+ try {
+ Object resp = doInvoke(msg.getBody());
+ msg.setBody(resp);
+ } catch (SpringInvocationException e) {
+ msg.setFaultBody(e.getCause());
+ }catch (Throwable e) {
+ msg.setFaultBody(e);
+ }
+ //System.out.println("Spring Invoker - invoke called");
+ return msg;
+ } // end method invoke
+
+} // end class SpringInvoker
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