/*
* 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.deployment;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import com.amazonaws.services.simpleworkflow.flow.ActivitySchedulingOptions;
import com.amazonaws.services.simpleworkflow.flow.core.Promise;
public class LoadBalancer extends DeployableBase {
private List<WebServer> webServers;
@Autowired
private DeploymentActivitiesClient activities;
public List<WebServer> getWebServers() {
return webServers;
}
public void setWebServers(List<WebServer> webServers) {
this.webServers = webServers;
}
@PostConstruct
public void init() {
addDependsOn(webServers);
}
@Override
protected Promise<String> deploySelf() {
List<String> urls = new ArrayList<String>();
for (WebServer webServer : webServers) {
// It is safe to call Promise.get() here as deploySelf is called after
// all components WebServer depends on are already deployed
urls.add(webServer.getUrl().get());
}
// Use host name as taskList to route request to appropriate host
ActivitySchedulingOptions options = new ActivitySchedulingOptions();
options.setTaskList(getHost());
return activities.deployLoadBalancer(urls, options);
}
}