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/*
* 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 sample;
import org.oasisopen.sca.ComponentContext;
import org.oasisopen.sca.ServiceReference;
import org.oasisopen.sca.annotation.Callback;
import org.oasisopen.sca.annotation.Context;
import org.oasisopen.sca.annotation.Service;
@Service(sample.Service.class)
public class ServiceImpl implements sample.Service {
public static final String MESSAGE_RECEIVED = "ServiceImpl - Received message: ";
@Context
protected ComponentContext componentContext;
@Callback
protected ServiceReference<CallBack> callbackRef;
/**
* This function gets an object of ServiceImpl by calling
* getCallBackInterface function and calls the callBackMessage function.
*
* @param aString String passed by a function call
*/
public void knockKnock(String aString) {
System.out.println(MESSAGE_RECEIVED + aString);
CallBack callback = this.getCallBackFromComponentContext();
callback.callBackMessage("Who's There");
}
/**
* This function calls the callBackMessage function. The reference to this
* function is received from the callback reference to the Service class.
*
* @param aString String passed by a function call
*/
public void knockKnockByRef(String aString) {
System.out.println(MESSAGE_RECEIVED + aString);
callbackRef.getService().callBackMessage("Who's There");
}
/**
* This function gets an object of ServiceImpl by calling
* getCallBackInterface function. This function then places multiple
* callbacks using the callbackIncrement function defined in the callback
* implementation.
*
* @param aString String passed by a function call
*/
public void multiCallBack(String aString) {
CallBack callback = this.getCallBackFromComponentContext();
System.out.println(MESSAGE_RECEIVED + aString);
callback.callBackIncrement();
callback.callBackIncrement();
callback.callBackIncrement();
}
/**
* This function does not callBack any function.
*
* @param aString String passed by a function call
*/
public void noCallBack(String aString) {
System.out.println(MESSAGE_RECEIVED + aString);
}
/**
* This function gets an object of ServiceImpl from the present
* componentContext.
*
* @return the callback
*/
private CallBack getCallBackFromComponentContext() {
return componentContext.getRequestContext().getCallback();
}
}
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