Example usage for com.amazonaws.services.elasticloadbalancing.model CreateLoadBalancerRequest setSubnets

Introduction

In this page you can find the example usage for com.amazonaws.services.elasticloadbalancing.model CreateLoadBalancerRequest setSubnets.

Prototype

public void setSubnets(java.util.Collection<String> subnets) 

Source Link

Document

The IDs of the subnets in your VPC to attach to the load balancer.

Usage

From source file:org.apache.stratos.aws.extension.AWSHelper.java

License:Apache License

/**
 * Creates a load balancer and returns its DNS name. Useful when a new
 * cluster is added.//  w  w w.j  ava2 s .c om
 *
 * @param name      of the load balancer to be created
 * @param listeners to be attached to the load balancer
 * @param region    in which the load balancer needs to be created
 * @return DNS name of newly created load balancer
 * @throws LoadBalancerExtensionException
 */
public String createLoadBalancer(String name, List<Listener> listeners, String region,
        Set<String> availabilityZones, boolean inVPC) throws LoadBalancerExtensionException {

    log.info("Creating load balancer " + name);

    CreateLoadBalancerRequest createLoadBalancerRequest = new CreateLoadBalancerRequest(name);

    createLoadBalancerRequest.setListeners(listeners);

    // don't need this now since we are anyway updating zone according to the member
    //      Set<String> availabilityZones = new HashSet<String>();
    //      availabilityZones.add(getAvailabilityZoneFromRegion(region));
    //
    //      createLoadBalancerRequest.setAvailabilityZones(availabilityZones);

    try {
        if (inVPC) {

            List<String> securityGroups = new ArrayList<String>();
            if (!vpcIds.isEmpty()) {
                for (String vpcId : vpcIds) {
                    String securityGroupId = getSecurityGroupIdForRegion(region, vpcId);
                    securityGroups.add(securityGroupId);
                }
            } else {
                String securityGroupId = getSecurityGroupIdForRegion(region, null);
                securityGroups.add(securityGroupId);
            }

            createLoadBalancerRequest.setSecurityGroups(securityGroups);

            // set subnet ids
            if (!getSubnetIds().isEmpty()) {
                createLoadBalancerRequest.setSubnets(subnetIds);
            }

            // set scheme to 'internal' if specified
            if (getLbScheme() != null && getLbScheme().equals(Constants.LB_SCHEME_INTERNAL)) {
                createLoadBalancerRequest.setScheme(getLbScheme());
            }
        } else {
            // set initial availability zones
            createLoadBalancerRequest.setAvailabilityZones(availabilityZones);
        }

        elbClient.setEndpoint(String.format(Constants.ELB_ENDPOINT_URL_FORMAT, region));

        CreateLoadBalancerResult clbResult = elbClient.createLoadBalancer(createLoadBalancerRequest);

        return clbResult.getDNSName();

    } catch (AmazonClientException e) {
        String errorMsg = "Could not create load balancer " + name;
        log.error(errorMsg, e);
        throw new LoadBalancerExtensionException(errorMsg, e);
    }
}

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