diff options
Diffstat (limited to 'sca-java-2.x/trunk/samples/sca-features/async/sample-contribution-implementation-java-calculator-async/src/main/java/calculator/CalculatorServiceProxyImpl.java')
-rw-r--r-- | sca-java-2.x/trunk/samples/sca-features/async/sample-contribution-implementation-java-calculator-async/src/main/java/calculator/CalculatorServiceProxyImpl.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/sca-java-2.x/trunk/samples/sca-features/async/sample-contribution-implementation-java-calculator-async/src/main/java/calculator/CalculatorServiceProxyImpl.java b/sca-java-2.x/trunk/samples/sca-features/async/sample-contribution-implementation-java-calculator-async/src/main/java/calculator/CalculatorServiceProxyImpl.java new file mode 100644 index 0000000000..69c96fe892 --- /dev/null +++ b/sca-java-2.x/trunk/samples/sca-features/async/sample-contribution-implementation-java-calculator-async/src/main/java/calculator/CalculatorServiceProxyImpl.java @@ -0,0 +1,89 @@ +/* + * 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 calculator; + +import java.util.concurrent.ExecutionException; +import java.util.concurrent.Future; + +import org.oasisopen.sca.annotation.Reference; + +/** + * An implementation of the Calculator service which just proxies + * to sync and asyn versions of the calculator service. This proxy + * exercises the various async interface alternatives + */ +public class CalculatorServiceProxyImpl implements CalculatorService { + + @Reference + protected CalculateViaAsyncRef calculatorServiceRefSync; + + @Reference + protected CalculateViaAsyncRef calculatorServiceRefAsync; + + @Override + public String calculate(Integer n1) { + String result = null; + + // calculate using a sync service + System.out.println("Calling sync service"); + result = calculate(calculatorServiceRefSync, n1); + + // calculate using an aycn service + System.out.println("Calling async service"); + result += calculate(calculatorServiceRefAsync, n1); + + return result; + } + + // exercise sync and async versions of a service interface method + private String calculate(CalculateViaAsyncRef calculatorRef, Integer n1) { + + // sync + String result = calculatorRef.calculate(1); + System.out.println("Sync client patern: result = " + result); + + // async poll + Future<String> future = calculatorRef.calculateAsync(20); + + while (!future.isDone()){ + System.out.println("Waiting for poll"); + } + + try { + result = future.get(); + System.out.println("Async client poll patern: result = " + result); + } catch (InterruptedException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (ExecutionException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + + // async callback + CalculatorAsyncHandler handler = new CalculatorAsyncHandler(); + future = calculatorRef.calculateAsync(3, handler); + + while (!future.isDone()){ + System.out.println("Waiting for callback"); + } + + return result; + } +} |