com.eucalyptus.cloudformation.workflow.WorkflowClientManager.java Source code

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Here is the source code for com.eucalyptus.cloudformation.workflow.WorkflowClientManager.java

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/*************************************************************************
 * Copyright 2009-2015 Eucalyptus Systems, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/.
 *
 * Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
 * CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
 * additional information or have any questions.
 ************************************************************************/
package com.eucalyptus.cloudformation.workflow;

import static com.eucalyptus.cloudformation.config.CloudFormationProperties.*;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.simpleworkflow.AmazonSimpleWorkflow;
import com.amazonaws.services.simpleworkflow.AmazonSimpleWorkflowClient;
import com.eucalyptus.cloudformation.CloudFormation;
import com.eucalyptus.cloudformation.bootstrap.CloudFormationAWSCredentialsProvider;
import com.eucalyptus.simpleworkflow.common.client.Config;
import com.eucalyptus.simpleworkflow.common.client.WorkflowClient;

/**
 *
 */
public class WorkflowClientManager {

    private static volatile WorkflowClient workflowClient;

    public static synchronized AmazonSimpleWorkflow getSimpleWorkflowClient() {
        return workflowClient.getAmazonSimpleWorkflow();
    }

    public static void start() throws Exception {
        final AmazonSimpleWorkflow simpleWorkflowClient;
        if (USE_AWS_SWF) {
            System.setProperty("com.amazonaws.sdk.disableCertChecking", "true");
            final BasicAWSCredentials creds = new BasicAWSCredentials(AWS_ACCESS_KEY, AWS_SECRET_KEY);
            simpleWorkflowClient = new AmazonSimpleWorkflowClient(creds);
            simpleWorkflowClient.setRegion(Region.getRegion(Regions.US_EAST_1));

        } else {
            simpleWorkflowClient = Config.buildClient(
                    CloudFormationAWSCredentialsProvider.CloudFormationUserSupplier.INSTANCE, SWF_CLIENT_CONFIG);
        }

        workflowClient = new WorkflowClient(CloudFormation.class, simpleWorkflowClient, SWF_DOMAIN, SWF_TASKLIST,
                SWF_WORKFLOW_WORKER_CONFIG, SWF_ACTIVITY_WORKER_CONFIG);

        workflowClient.start();

    }

    public static void stop() throws Exception {
        if (workflowClient != null) {
            workflowClient.stop();
        }
    }
}