/*
* Copyright 2012-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not
* use this file except in compliance with the License. A copy of the License is
* located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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 com.amazonaws.services.simpleworkflow.flow.examples.cronwithretry;
import java.util.Random;
import com.amazonaws.services.simpleworkflow.flow.ActivityExecutionContext;
import com.amazonaws.services.simpleworkflow.flow.ActivityExecutionContextProvider;
import com.amazonaws.services.simpleworkflow.flow.ActivityExecutionContextProviderImpl;
import com.amazonaws.services.simpleworkflow.model.ActivityTask;
public class CronExampleActivitiesImpl implements CronWithRetryExampleActivities {
final ActivityExecutionContextProvider contextProvider;
public CronExampleActivitiesImpl() {
this(new ActivityExecutionContextProviderImpl());
}
/**
* Useful for unit testing activities.
*/
public CronExampleActivitiesImpl(ActivityExecutionContextProvider contextProvider) {
this.contextProvider = contextProvider;
}
/**
* Fail in 20% of invocations to demonstrate retry logic
*/
@Override
public void doSomeWork(String parameter) {
Random r = new Random();
if (r.nextInt(100) < 20) {
throw new RuntimeException("simulated exception to force retry");
}
ActivityExecutionContext context = contextProvider.getActivityExecutionContext();
ActivityTask task = context.getTask();
String taskid = task.getActivityId();
System.out.println("Processed activity task with id: " + taskid);
}
}