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Diffstat (limited to 'branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider')
3 files changed, 0 insertions, 219 deletions
diff --git a/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java b/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java deleted file mode 100644 index 87333c61f6..0000000000 --- a/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationInvoker.java +++ /dev/null @@ -1,68 +0,0 @@ -/* - * 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 pojo.provider; - -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; - -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.invocation.Message; -import org.osoa.sca.ServiceRuntimeException; - -/** - * Implements an invoker for POJO component implementations. - * - * The invoker is responsible for handling invocations of a business operation. - * Input business data is passed to the invoke method in a Message object. - * The invoke method is responsible for handling the invocation and returning a Message with - * the output business data. - * - * In this example we are simply delegating the operation invocations to the - * corresponding methods on the POJO implementation class using Java reflection. - * - * Depending on the type of implementation being handled, more sophisticated invokers can - * use other techniques to delegate the invocation to the implementation artifact directly, call a - * runtime engine like a BPEL engine or an XQuery engine (this is what the Tuscany - * implementation-bpel and implementation-xquery extensions do) or just completely handle the - * invocation in the invoker itself if the implementation has a fixed behavior for example. - */ -class POJOImplementationInvoker implements Invoker { - - private Object pojoInstance; - private Method method; - - POJOImplementationInvoker(Object pojoInstance, Operation operation, Method method) { - this.pojoInstance = pojoInstance; - this.method = method; - } - - public Message invoke(Message msg) { - try { - msg.setBody(method.invoke(pojoInstance, (Object[])msg.getBody())); - } catch (InvocationTargetException e) { - msg.setFaultBody(e); - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } - return msg; - } - -} diff --git a/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationProvider.java b/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationProvider.java deleted file mode 100644 index 73a0d22493..0000000000 --- a/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationProvider.java +++ /dev/null @@ -1,106 +0,0 @@ -/* - * 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 pojo.provider; - -import java.lang.reflect.Method; - -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.provider.ImplementationProvider; -import org.apache.tuscany.sca.runtime.RuntimeComponent; -import org.apache.tuscany.sca.runtime.RuntimeComponentService; -import org.osoa.sca.ServiceRuntimeException; - -import pojo.POJOImplementation; - -/** - * An implementation provider for sample CRUD implementations. - * - * The implementation provider is responsible for handling the lifecycle of a component - * implementation and creating operation invokers for the service operations provided - * by the implementation. - * - * The start() and stop() methods are called when a component is started - * and stopped. In this example we are using that opportunity to call init and destroy methods - * on the POJO instance if these methods exist. - * - * The createInvoker method is called for each operation provided by the component - * implementation. The implementation provider can create an invoker and initialize it - * at that time to minimize the amount of work to be performed on each invocation. - * - * For example here we are looking up the Java method corresponding to the service operation - * at passing it to the invoker constructor. This way the invoker won't have to lookup the Java - * method on each invocation. - */ -class POJOImplementationProvider implements ImplementationProvider { - - private POJOImplementation implementation; - private Object pojoInstance; - - /** - * Constructs a new CRUD implementation. - */ - POJOImplementationProvider(RuntimeComponent component, POJOImplementation implementation) { - this.implementation = implementation; - - // Create a new instance of the POJO - try { - pojoInstance = implementation.getPOJOClass().newInstance(); - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } - } - - public void start() { - try { - // Invoke the POJO's init method - Method initMethod = implementation.getMethods().get("init"); - if (initMethod != null) { - initMethod.invoke(pojoInstance); - } - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } - } - - public void stop() { - try { - // Invoke the POJO's destroy method - Method destroyMethod = implementation.getMethods().get("destroy"); - if (destroyMethod != null) { - destroyMethod.invoke(pojoInstance); - } - } catch (Exception e) { - throw new ServiceRuntimeException(e); - } finally { - pojoInstance = null; - } - } - - public Invoker createInvoker(RuntimeComponentService service, Operation operation) { - Method method = implementation.getMethods().get(operation.getName()); - POJOImplementationInvoker invoker = new POJOImplementationInvoker(pojoInstance, operation, method); - return invoker; - } - - public boolean supportsOneWayInvocation() { - return false; - } - -} diff --git a/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationProviderFactory.java b/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationProviderFactory.java deleted file mode 100644 index 22f2be09e9..0000000000 --- a/branches/sca-java-1.4/samples/implementation-pojo-extension/src/main/java/pojo/provider/POJOImplementationProviderFactory.java +++ /dev/null @@ -1,45 +0,0 @@ -/* - * 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 pojo.provider; - -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.provider.ImplementationProvider; -import org.apache.tuscany.sca.provider.ImplementationProviderFactory; -import org.apache.tuscany.sca.runtime.RuntimeComponent; - -import pojo.POJOImplementation; - -/** - * A factory for POJO implementation providers. - */ -public class POJOImplementationProviderFactory implements ImplementationProviderFactory<POJOImplementation> { - - public POJOImplementationProviderFactory(ExtensionPointRegistry registry) { - } - - public Class<POJOImplementation> getModelType() { - // Returns the type of model processed by this processor - return POJOImplementation.class; - } - - public ImplementationProvider createImplementationProvider(RuntimeComponent component, POJOImplementation implementation) { - return new POJOImplementationProvider(component, implementation); - } - -} |