/*
 * Copyright 2012-2013 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.periodicworkflow;

import java.util.Random;

import com.amazonaws.services.simpleworkflow.flow.ActivityExecutionContextProvider;
import com.amazonaws.services.simpleworkflow.flow.ActivityExecutionContextProviderImpl;

public class PeriodicWorkflowActivitiesImpl implements PeriodicWorkflowActivities {

    private final ActivityExecutionContextProvider contextProvider;

    public PeriodicWorkflowActivitiesImpl() {
        this.contextProvider = new ActivityExecutionContextProviderImpl();
    }
    
    /**
     * For unit testing or IoC
     */
    public PeriodicWorkflowActivitiesImpl(ActivityExecutionContextProvider contextProvider) {
        this.contextProvider = contextProvider;
    }

	@Override
    // Activity takes random time to execute to show that it is waited if workflow parameter waitForActivityCompletion
    // is set to true
    public void doSomeWork(String parameter) {
        String runId = contextProvider.getActivityExecutionContext().getTask().getWorkflowExecution().getRunId();
        Random r = new Random();
        long delay = r.nextInt(3000);
        System.out.println("Run Id: " + runId + ", Do some periodic task here for " + delay + " milliseconds with parameter="
                + parameter);
        try {
            Thread.sleep(delay);
        }
        catch (InterruptedException e) {
        }

    }

}
