/*
* 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 crud.provider;
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 crud.CRUDImplementation;
import crud.backend.ResourceManager;
/**
* 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.
*
* 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.
*/
class CRUDImplementationProvider implements ImplementationProvider {
private RuntimeComponent component;
private CRUDImplementation implementation;
/**
* Constructs a new CRUD implementation.
*/
CRUDImplementationProvider(RuntimeComponent component, CRUDImplementation implementation) {
this.component = component;
this.implementation = implementation;
}
public Invoker createInvoker(RuntimeComponentService service, Operation operation) {
CRUDImplementationInvoker invoker = new CRUDImplementationInvoker(operation, new ResourceManager(implementation.getDirectory()));
return invoker;
}
public boolean supportsOneWayInvocation() {
return false;
}
public void start() {
System.out.println("Starting " + component.getName());
}
public void stop() {
System.out.println("Stopping " + component.getName());
}
}