Example usage for com.amazonaws.services.elasticloadbalancing.model Listener getInstancePort

List of usage examples for com.amazonaws.services.elasticloadbalancing.model Listener getInstancePort

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Introduction

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

Prototype


public Integer getInstancePort()

Source Link

Document

The port on which the instance is listening.

Usage

From source file:com.haskins.cloudtrailviewer.dialog.resourcedetail.detailpanels.ElbDetail.java

License:Open Source License

private void buildUI(DescribeLoadBalancersResult detail) {

    JTabbedPane tabs = new JTabbedPane();

    tabs.add("Load Balancer", primaryScrollPane);

    final JTable healthCheckTable = new JTable(healthCheckTableModel);
    JScrollPane healthCheckScrollPane = new JScrollPane(healthCheckTable);
    tabs.add("Health Check", healthCheckScrollPane);

    final JTable listenersTable = new JTable(listenersTableModel);
    JScrollPane listenersScrollPane = new JScrollPane(listenersTable);
    tabs.add("Listeners", listenersScrollPane);

    this.add(tabs, BorderLayout.CENTER);

    List<LoadBalancerDescription> elbs = detail.getLoadBalancerDescriptions();
    if (!elbs.isEmpty()) {

        LoadBalancerDescription elb = elbs.get(0);

        if (!elb.getAvailabilityZones().isEmpty()) {

            StringBuilder azs = new StringBuilder();
            for (String az : elb.getAvailabilityZones()) {
                azs.append(az).append(", ");
            }//from   w  w  w .  ja v  a 2  s. co  m

            primaryTableModel.addRow(new Object[] { "Availability Zones", azs.toString() });
        }

        if (elb.getCanonicalHostedZoneName() != null) {
            primaryTableModel
                    .addRow(new Object[] { "Canonical Hosted Zone name", elb.getCanonicalHostedZoneName() });
        }
        if (elb.getCanonicalHostedZoneNameID() != null) {
            primaryTableModel.addRow(
                    new Object[] { "Canonical Hosted Zone name Id", elb.getCanonicalHostedZoneNameID() });
        }
        if (elb.getCreatedTime() != null) {
            primaryTableModel.addRow(new Object[] { "Created", elb.getCreatedTime() });
        }
        if (elb.getDNSName() != null) {
            primaryTableModel.addRow(new Object[] { "DNS Name", elb.getDNSName() });
        }

        if (!elb.getInstances().isEmpty()) {

            StringBuilder instances = new StringBuilder();
            for (Instance instance : elb.getInstances()) {
                instances.append(instance.getInstanceId()).append(", ");
            }

            primaryTableModel.addRow(new Object[] { "Instances", instances.toString() });
        }

        if (elb.getLoadBalancerName() != null) {
            primaryTableModel.addRow(new Object[] { "Load Balander Name", elb.getLoadBalancerName() });
        }
        if (elb.getScheme() != null) {
            primaryTableModel.addRow(new Object[] { "Scheme", elb.getScheme() });
        }

        if (!elb.getSecurityGroups().isEmpty()) {

            StringBuilder sgs = new StringBuilder();
            for (String sg : elb.getSecurityGroups()) {
                sgs.append(sg).append(", ");
            }

            primaryTableModel.addRow(new Object[] { "Security Groups", sgs.toString() });
        }

        if (elb.getSourceSecurityGroup() != null) {
            primaryTableModel.addRow(
                    new Object[] { "Source Security Group", elb.getSourceSecurityGroup().getGroupName() });
        }

        if (!elb.getSubnets().isEmpty()) {

            StringBuilder subnets = new StringBuilder();
            for (String subnet : elb.getSubnets()) {
                subnets.append(subnet).append(", ");
            }

            primaryTableModel.addRow(new Object[] { "Subnets", subnets.toString() });
        }

        if (elb.getVPCId() != null) {
            primaryTableModel.addRow(new Object[] { "VPC Id", elb.getVPCId() });
        }

        /**
         * Health Check
         */

        healthCheckTableModel.addColumn("Property");
        healthCheckTableModel.addColumn("Value");

        HealthCheck healthCheck = elb.getHealthCheck();
        if (healthCheck.getHealthyThreshold() != null) {
            healthCheckTableModel.addRow(new Object[] { "Threshold", healthCheck.getHealthyThreshold() });
        }
        if (healthCheck.getInterval() != null) {
            healthCheckTableModel.addRow(new Object[] { "Interval", healthCheck.getInterval() });
        }
        if (healthCheck.getTarget() != null) {
            healthCheckTableModel.addRow(new Object[] { "Target", healthCheck.getTarget() });
        }
        if (healthCheck.getTimeout() != null) {
            healthCheckTableModel.addRow(new Object[] { "Timeout", healthCheck.getTimeout() });
        }
        if (healthCheck.getUnhealthyThreshold() != null) {
            healthCheckTableModel
                    .addRow(new Object[] { "Unhealth Threshold", healthCheck.getUnhealthyThreshold() });
        }

        /**
         * Listeners
         */

        listenersTableModel.addColumn("Instance Port");
        listenersTableModel.addColumn("Instance Protocol");
        listenersTableModel.addColumn("Load Balancer Port");
        listenersTableModel.addColumn("Load Balancer Protocol");
        listenersTableModel.addColumn("SSL Certificate Id");

        List<ListenerDescription> listenerDescriptions = elb.getListenerDescriptions();
        for (ListenerDescription description : listenerDescriptions) {

            Listener listener = description.getListener();

            String ssl = "";
            if (listener.getSSLCertificateId() != null) {
                ssl = listener.getSSLCertificateId();
            }

            listenersTableModel
                    .addRow(new Object[] { listener.getInstancePort(), listener.getInstanceProtocol(),
                            listener.getLoadBalancerPort(), listener.getProtocol(), ssl });
        }
    }
}

From source file:com.netflix.spinnaker.clouddriver.aws.deploy.handlers.MigrateLoadBalancerStrategy.java

License:Apache License

/**
 * Creates the app specific security group, or returns the ID of one if it already exists
 *
 * @param appGroups               list of existing security groups in which to look for existing app security group
 * @param elbGroup                the elb specific security group, which will allow ingress permission from the
 *                                app specific security group
 *//*w w w .j  a  v  a 2 s. c  om*/
protected void buildApplicationSecurityGroup(LoadBalancerDescription sourceDescription,
        List<SecurityGroup> appGroups, MigrateSecurityGroupResult elbGroup) {
    if (getDeployDefaults().getAddAppGroupToServerGroup()) {
        AmazonEC2 targetAmazonEC2 = getAmazonClientProvider().getAmazonEC2(target.getCredentials(),
                target.getRegion(), true);
        Optional<SecurityGroup> existing = appGroups.stream().filter(isAppSecurityGroup()).findFirst();
        MigrateSecurityGroupReference appGroupReference = new MigrateSecurityGroupReference();
        appGroupReference.setAccountId(target.getCredentials().getAccountId());
        appGroupReference.setVpcId(target.getVpcId());
        appGroupReference.setTargetName(applicationName);
        if (existing.isPresent()) {
            elbGroup.getReused().add(appGroupReference);
        } else {
            elbGroup.getCreated().add(appGroupReference);
            if (!dryRun) {
                UpsertSecurityGroupDescription upsertDescription = new UpsertSecurityGroupDescription();
                upsertDescription.setDescription("Application security group for " + applicationName);
                upsertDescription.setName(applicationName);
                upsertDescription.setVpcId(target.getVpcId());
                upsertDescription.setRegion(target.getRegion());
                upsertDescription.setCredentials(target.getCredentials());
                getTask().updateStatus(LoadBalancerMigrator.BASE_PHASE,
                        "Creating security group " + upsertDescription.getName() + " in "
                                + target.getCredentialAccount() + "/" + target.getRegion() + "/"
                                + target.getVpcId());
                String newGroupId = targetLookup.createSecurityGroup(upsertDescription).getSecurityGroup()
                        .getGroupId();
                // After the create request completes, there is a brief period where the security group might not be
                // available and subsequent operations on it will fail, so make sure it's there
                OperationPoller.retryWithBackoff(o -> appGroups.addAll(targetAmazonEC2
                        .describeSecurityGroups(new DescribeSecurityGroupsRequest().withGroupIds(newGroupId))
                        .getSecurityGroups()), 200, 5);
            }
        }
        if (!dryRun) {
            String elbGroupId = elbGroup.getTarget().getTargetId();
            SecurityGroup appGroup = appGroups.stream().filter(isAppSecurityGroup()).findFirst().get();
            if (allowIngressFromClassic) {
                addClassicLinkIngress(targetLookup, getDeployDefaults().getClassicLinkSecurityGroupName(),
                        appGroup.getGroupId(), target.getCredentials(), target.getVpcId());
            }
            boolean hasElbIngressPermission = appGroup.getIpPermissions().stream().anyMatch(
                    p -> p.getUserIdGroupPairs().stream().anyMatch(u -> u.getGroupId().equals(elbGroupId)));
            if (!hasElbIngressPermission) {
                sourceDescription.getListenerDescriptions().forEach(l -> {
                    Listener listener = l.getListener();
                    IpPermission newPermission = new IpPermission().withIpProtocol("tcp")
                            .withFromPort(listener.getInstancePort()).withToPort(listener.getInstancePort())
                            .withUserIdGroupPairs(
                                    new UserIdGroupPair().withGroupId(elbGroupId).withVpcId(target.getVpcId()));
                    targetAmazonEC2.authorizeSecurityGroupIngress(new AuthorizeSecurityGroupIngressRequest()
                            .withGroupId(appGroup.getGroupId()).withIpPermissions(newPermission));
                });
            }
        }
    }
}

From source file:com.proofpoint.discovery.elb.ElasticLoadBalancerUpdater.java

License:Apache License

private static boolean serviceExistsForListener(Listener listener, Map<String, String> properties) {
    String protocol = listener.getInstanceProtocol().toLowerCase();
    if ((!protocol.equals("http")) && (!protocol.equals("https"))) {
        return false;
    }//from ww w.  j av a  2  s  .  c  om
    URI uri = extractUri(properties.get(protocol));
    return (uri != null) && (uri.getPort() == listener.getInstancePort());
}

From source file:fr.xebia.demo.amazon.aws.PetclinicInfrastructureEnforcer.java

License:Apache License

/**
 * /*from  w  w  w  . j  a  v a2 s .c  om*/
 * @param healthCheckUri
 *            start with slash. E.g. "/myapp/healthcheck.jsp
 * @param applicationIdentifier
 *            used to name the load balancer and to filter the instances on
 *            their "Role" tag.
 * @return created load balancer description
 */
@Nonnull
public LoadBalancerDescription createOrUpdateElasticLoadBalancer(@Nonnull String healthCheckUri,
        @Nonnull String applicationIdentifier) {
    LOGGER.info("ENFORCE LOAD BALANCER");

    DescribeInstancesRequest describeInstancesWithRoleRequest = new DescribeInstancesRequest(). //
            withFilters(new Filter("tag:Role", Arrays.asList(applicationIdentifier)));
    DescribeInstancesResult describeInstancesResult = ec2.describeInstances(describeInstancesWithRoleRequest);

    Iterable<Instance> expectedEc2Instances = toEc2Instances(describeInstancesResult.getReservations());

    Set<String> expectedAvailabilityZones = Sets
            .newHashSet(Iterables.transform(expectedEc2Instances, EC2_INSTANCE_TO_AVAILABILITY_ZONE));
    Listener expectedListener = new Listener("HTTP", 80, 8080);

    String loadBalancerName = applicationIdentifier;

    LoadBalancerDescription actualLoadBalancerDescription;
    try {
        DescribeLoadBalancersResult describeLoadBalancers = elb
                .describeLoadBalancers(new DescribeLoadBalancersRequest(Arrays.asList(loadBalancerName)));
        if (describeLoadBalancers.getLoadBalancerDescriptions().isEmpty()) {
            // unexpected, this should have been a
            // LoadBalancerNotFoundException
            actualLoadBalancerDescription = null;
        } else {
            // re-query to get updated config

            actualLoadBalancerDescription = Iterables
                    .getFirst(describeLoadBalancers.getLoadBalancerDescriptions(), null);
        }
    } catch (LoadBalancerNotFoundException e) {
        actualLoadBalancerDescription = null;
    }

    Set<String> actualAvailabilityZones;
    Set<String> actualInstanceIds;
    Policies actualPolicies;
    HealthCheck actualHealthCheck;
    ListenerDescription actualListenerDescription = null;
    if (actualLoadBalancerDescription == null) {
        CreateLoadBalancerRequest createLoadBalancerRequest = new CreateLoadBalancerRequest() //
                .withLoadBalancerName(loadBalancerName) //
                .withAvailabilityZones(expectedAvailabilityZones) //
                .withListeners(expectedListener);
        elb.createLoadBalancer(createLoadBalancerRequest);

        actualListenerDescription = new ListenerDescription().withListener(expectedListener);
        actualAvailabilityZones = expectedAvailabilityZones;
        actualInstanceIds = Collections.emptySet();
        actualHealthCheck = new HealthCheck();
        actualPolicies = new Policies();
    } else {
        // check listeners
        List<ListenerDescription> actualListenerDescriptions = actualLoadBalancerDescription
                .getListenerDescriptions();
        boolean loadBalancerMustBeRecreated;

        if (actualListenerDescriptions.size() == 1) {
            actualListenerDescription = Iterables.getOnlyElement(actualListenerDescriptions);
            Listener actualListener = actualListenerDescription.getListener();
            if (ObjectUtils.equals(expectedListener.getProtocol(), actualListener.getProtocol()) && //
                    ObjectUtils.equals(expectedListener.getLoadBalancerPort(),
                            actualListener.getLoadBalancerPort())
                    && //
                    ObjectUtils.equals(expectedListener.getInstancePort(), actualListener.getInstancePort())) {
                loadBalancerMustBeRecreated = false;
            } else {
                loadBalancerMustBeRecreated = true;
            }
        } else {
            loadBalancerMustBeRecreated = true;
        }

        if (loadBalancerMustBeRecreated) {
            LOGGER.info("Recreate miss configured load balancer actualListeners:{}, expectedListener:{}",
                    actualListenerDescriptions, expectedListener);
            elb.deleteLoadBalancer(new DeleteLoadBalancerRequest(loadBalancerName));
            return createOrUpdateElasticLoadBalancer(healthCheckUri, applicationIdentifier);
        }

        //
        actualAvailabilityZones = Sets.newHashSet(actualLoadBalancerDescription.getAvailabilityZones());
        actualInstanceIds = Sets.newHashSet(
                Iterables.transform(actualLoadBalancerDescription.getInstances(), ELB_INSTANCE_TO_INSTANCE_ID));

        actualHealthCheck = actualLoadBalancerDescription.getHealthCheck();

        actualPolicies = actualLoadBalancerDescription.getPolicies();
    }

    // HEALTH CHECK
    if (!healthCheckUri.startsWith("/")) {
        healthCheckUri = "/" + healthCheckUri;
    }

    HealthCheck expectedHealthCheck = new HealthCheck() //
            .withTarget("HTTP:8080" + healthCheckUri) //
            .withHealthyThreshold(2) //
            .withUnhealthyThreshold(2) //
            .withInterval(30) //
            .withTimeout(2);
    if (Objects.equal(expectedHealthCheck.getTarget(), actualHealthCheck.getTarget()) && //
            Objects.equal(expectedHealthCheck.getHealthyThreshold(), actualHealthCheck.getHealthyThreshold()) && //
            Objects.equal(expectedHealthCheck.getInterval(), actualHealthCheck.getInterval()) && //
            Objects.equal(expectedHealthCheck.getTimeout(), actualHealthCheck.getTimeout()) && //
            Objects.equal(expectedHealthCheck.getUnhealthyThreshold(),
                    actualHealthCheck.getHealthyThreshold())) {
        // health check is ok
    } else {
        LOGGER.info("Set Healthcheck: {}", expectedHealthCheck);
        elb.configureHealthCheck(new ConfigureHealthCheckRequest(loadBalancerName, expectedHealthCheck));
    }

    // AVAILABILITY ZONES
    // enable
    Iterable<String> availabilityZonesToEnable = Sets.difference(expectedAvailabilityZones,
            actualAvailabilityZones);
    LOGGER.info("Enable availability zones: {}", availabilityZonesToEnable);
    if (!Iterables.isEmpty(availabilityZonesToEnable)) {
        elb.enableAvailabilityZonesForLoadBalancer(new EnableAvailabilityZonesForLoadBalancerRequest(
                loadBalancerName, Lists.newArrayList(availabilityZonesToEnable)));
    }

    // disable
    Iterable<String> availabilityZonesToDisable = Sets.difference(actualAvailabilityZones,
            expectedAvailabilityZones);
    LOGGER.info("Disable availability zones: {}", availabilityZonesToDisable);
    if (!Iterables.isEmpty(availabilityZonesToDisable)) {
        elb.disableAvailabilityZonesForLoadBalancer(new DisableAvailabilityZonesForLoadBalancerRequest(
                loadBalancerName, Lists.newArrayList(availabilityZonesToDisable)));
    }

    // STICKINESS
    List<AppCookieStickinessPolicy> appCookieStickinessPoliciesToDelete = actualPolicies
            .getAppCookieStickinessPolicies();
    LOGGER.info("Delete app cookie stickiness policies: {}", appCookieStickinessPoliciesToDelete);
    for (AppCookieStickinessPolicy appCookieStickinessPolicyToDelete : appCookieStickinessPoliciesToDelete) {
        elb.deleteLoadBalancerPolicy(new DeleteLoadBalancerPolicyRequest(loadBalancerName,
                appCookieStickinessPolicyToDelete.getPolicyName()));
    }

    final LBCookieStickinessPolicy expectedLbCookieStickinessPolicy = new LBCookieStickinessPolicy(
            applicationIdentifier + "-stickiness-policy", null);
    Predicate<LBCookieStickinessPolicy> isExpectedPolicyPredicate = new Predicate<LBCookieStickinessPolicy>() {
        @Override
        public boolean apply(LBCookieStickinessPolicy lbCookieStickinessPolicy) {
            return Objects.equal(expectedLbCookieStickinessPolicy.getPolicyName(),
                    lbCookieStickinessPolicy.getPolicyName()) && //
            Objects.equal(expectedLbCookieStickinessPolicy.getCookieExpirationPeriod(),
                    lbCookieStickinessPolicy.getCookieExpirationPeriod());
        }
    };
    Collection<LBCookieStickinessPolicy> lbCookieStickinessPoliciesToDelete = Collections2
            .filter(actualPolicies.getLBCookieStickinessPolicies(), Predicates.not(isExpectedPolicyPredicate));
    LOGGER.info("Delete lb cookie stickiness policies: {}", lbCookieStickinessPoliciesToDelete);
    for (LBCookieStickinessPolicy lbCookieStickinessPolicy : lbCookieStickinessPoliciesToDelete) {
        elb.deleteLoadBalancerPolicy(new DeleteLoadBalancerPolicyRequest(loadBalancerName,
                lbCookieStickinessPolicy.getPolicyName()));
    }

    Collection<LBCookieStickinessPolicy> matchingLbCookieStyckinessPolicy = Collections2
            .filter(actualPolicies.getLBCookieStickinessPolicies(), isExpectedPolicyPredicate);
    if (matchingLbCookieStyckinessPolicy.isEmpty()) {
        // COOKIE STICKINESS
        CreateLBCookieStickinessPolicyRequest createLbCookieStickinessPolicy = new CreateLBCookieStickinessPolicyRequest() //
                .withLoadBalancerName(loadBalancerName) //
                .withPolicyName(expectedLbCookieStickinessPolicy.getPolicyName())
                //
                .withCookieExpirationPeriod(expectedLbCookieStickinessPolicy.getCookieExpirationPeriod());
        LOGGER.info("Create LBCookieStickinessPolicy: {}", createLbCookieStickinessPolicy);
        elb.createLBCookieStickinessPolicy(createLbCookieStickinessPolicy);

    } else {
        // what ?
    }

    // TODO verify load balancer policy is associated with the listener
    List<String> expectedListenerDescriptionPolicyNames = Lists
            .newArrayList(expectedLbCookieStickinessPolicy.getPolicyName());

    boolean mustOverWriteListenerPolicy = !ObjectUtils.equals(expectedListenerDescriptionPolicyNames,
            actualListenerDescription.getPolicyNames());

    if (mustOverWriteListenerPolicy) {

        SetLoadBalancerPoliciesOfListenerRequest setLoadBalancerPoliciesOfListenerRequest = new SetLoadBalancerPoliciesOfListenerRequest() //
                .withLoadBalancerName(loadBalancerName) //
                .withLoadBalancerPort(expectedListener.getLoadBalancerPort()) //
                .withPolicyNames(expectedLbCookieStickinessPolicy.getPolicyName());
        LOGGER.debug("setLoadBalancerPoliciesOfListener: {}", setLoadBalancerPoliciesOfListenerRequest);
        elb.setLoadBalancerPoliciesOfListener(setLoadBalancerPoliciesOfListenerRequest);
    }

    // INSTANCES
    Set<String> expectedEc2InstanceIds = Sets
            .newHashSet(Iterables.transform(expectedEc2Instances, EC2_INSTANCE_TO_INSTANCE_ID));
    // register
    Iterable<String> instanceIdsToRegister = Sets.difference(expectedEc2InstanceIds, actualInstanceIds);
    LOGGER.info("Register {} instances: {}", applicationIdentifier, instanceIdsToRegister);
    if (!Iterables.isEmpty(instanceIdsToRegister)) {
        elb.registerInstancesWithLoadBalancer(new RegisterInstancesWithLoadBalancerRequest(loadBalancerName,
                Lists.newArrayList(Iterables.transform(instanceIdsToRegister, INSTANCE_ID_TO_ELB_INSTANCE))));
    }

    // deregister
    Iterable<String> instanceIdsToDeregister = Sets.difference(actualInstanceIds, expectedEc2InstanceIds);
    LOGGER.info("Deregister {} instances: {}", applicationIdentifier, instanceIdsToDeregister);
    if (!Iterables.isEmpty(instanceIdsToDeregister)) {
        elb.deregisterInstancesFromLoadBalancer(new DeregisterInstancesFromLoadBalancerRequest(loadBalancerName,
                Lists.newArrayList(Iterables.transform(instanceIdsToDeregister, INSTANCE_ID_TO_ELB_INSTANCE))));
    }

    // QUERY TO GET UP TO DATE LOAD BALANCER DESCRIPTION
    LoadBalancerDescription elasticLoadBalancerDescription = Iterables.getOnlyElement(
            elb.describeLoadBalancers(new DescribeLoadBalancersRequest(Arrays.asList(loadBalancerName)))
                    .getLoadBalancerDescriptions());

    return elasticLoadBalancerDescription;
}

From source file:fr.xebia.workshop.infrastructureascode.AmazonAwsPetclinicInfrastructureEnforcer.java

License:Apache License

/**
 * // www  .j  ava 2  s.c om
 * @param healthCheckUri
 *            start with slash. E.g. "/myapp/healthcheck.jsp
 * @param applicationIdentifier
 *            used to name the load balancer and to filter the instances on
 *            their "Role" tag.
 * @return created load balancer description
 */
@Nonnull
public LoadBalancerDescription createOrUpdateElasticLoadBalancer(@Nonnull String healthCheckUri,
        @Nonnull String applicationIdentifier) {
    logger.info("ENFORCE LOAD BALANCER");

    DescribeInstancesRequest describeInstancesWithRoleRequest = new DescribeInstancesRequest(). //
            withFilters(new Filter("tag:Role", Arrays.asList(applicationIdentifier)));
    DescribeInstancesResult describeInstancesResult = ec2.describeInstances(describeInstancesWithRoleRequest);

    Iterable<Instance> expectedEc2Instances = toEc2Instances(describeInstancesResult.getReservations());

    Set<String> expectedAvailabilityZones = Sets
            .newHashSet(Iterables.transform(expectedEc2Instances, EC2_INSTANCE_TO_AVAILABILITY_ZONE));
    Listener expectedListener = new Listener("HTTP", 80, 8080);

    String loadBalancerName = applicationIdentifier;

    LoadBalancerDescription actualLoadBalancerDescription;
    try {
        DescribeLoadBalancersResult describeLoadBalancers = elb
                .describeLoadBalancers(new DescribeLoadBalancersRequest(Arrays.asList(loadBalancerName)));
        if (describeLoadBalancers.getLoadBalancerDescriptions().isEmpty()) {
            // unexpected, this should have been a
            // LoadBalancerNotFoundException
            actualLoadBalancerDescription = null;
        } else {
            // re-query to get updated config

            actualLoadBalancerDescription = Iterables
                    .getFirst(describeLoadBalancers.getLoadBalancerDescriptions(), null);
        }
    } catch (LoadBalancerNotFoundException e) {
        actualLoadBalancerDescription = null;
    }

    Set<String> actualAvailabilityZones;
    Set<String> actualInstanceIds;
    Policies actualPolicies;
    HealthCheck actualHealthCheck;
    ListenerDescription actualListenerDescription = null;
    if (actualLoadBalancerDescription == null) {
        CreateLoadBalancerRequest createLoadBalancerRequest = new CreateLoadBalancerRequest() //
                .withLoadBalancerName(loadBalancerName) //
                .withAvailabilityZones(expectedAvailabilityZones) //
                .withListeners(expectedListener);
        elb.createLoadBalancer(createLoadBalancerRequest);

        actualListenerDescription = new ListenerDescription().withListener(expectedListener);
        actualAvailabilityZones = expectedAvailabilityZones;
        actualInstanceIds = Collections.emptySet();
        actualHealthCheck = new HealthCheck();
        actualPolicies = new Policies();
    } else {
        // check listeners
        List<ListenerDescription> actualListenerDescriptions = actualLoadBalancerDescription
                .getListenerDescriptions();
        boolean loadBalancerMustBeRecreated;

        if (actualListenerDescriptions.size() == 1) {
            actualListenerDescription = Iterables.getOnlyElement(actualListenerDescriptions);
            Listener actualListener = actualListenerDescription.getListener();
            if (ObjectUtils.equals(expectedListener.getProtocol(), actualListener.getProtocol()) && //
                    ObjectUtils.equals(expectedListener.getLoadBalancerPort(),
                            actualListener.getLoadBalancerPort())
                    && //
                    ObjectUtils.equals(expectedListener.getInstancePort(), actualListener.getInstancePort())) {
                loadBalancerMustBeRecreated = false;
            } else {
                loadBalancerMustBeRecreated = true;
            }
        } else {
            loadBalancerMustBeRecreated = true;
        }

        if (loadBalancerMustBeRecreated) {
            logger.info("Recreate miss configured load balancer actualListeners:{}, expectedListener:{}",
                    actualListenerDescriptions, expectedListener);
            elb.deleteLoadBalancer(new DeleteLoadBalancerRequest(loadBalancerName));
            return createOrUpdateElasticLoadBalancer(healthCheckUri, applicationIdentifier);
        }

        //
        actualAvailabilityZones = Sets.newHashSet(actualLoadBalancerDescription.getAvailabilityZones());
        actualInstanceIds = Sets.newHashSet(
                Iterables.transform(actualLoadBalancerDescription.getInstances(), ELB_INSTANCE_TO_INSTANCE_ID));

        actualHealthCheck = actualLoadBalancerDescription.getHealthCheck();

        actualPolicies = actualLoadBalancerDescription.getPolicies();
    }

    // HEALTH CHECK
    if (!healthCheckUri.startsWith("/")) {
        healthCheckUri = "/" + healthCheckUri;
    }

    HealthCheck expectedHealthCheck = new HealthCheck() //
            .withTarget("HTTP:8080" + healthCheckUri) //
            .withHealthyThreshold(2) //
            .withUnhealthyThreshold(2) //
            .withInterval(30) //
            .withTimeout(2);
    if (Objects.equal(expectedHealthCheck.getTarget(), actualHealthCheck.getTarget()) && //
            Objects.equal(expectedHealthCheck.getHealthyThreshold(), actualHealthCheck.getHealthyThreshold()) && //
            Objects.equal(expectedHealthCheck.getInterval(), actualHealthCheck.getInterval()) && //
            Objects.equal(expectedHealthCheck.getTimeout(), actualHealthCheck.getTimeout()) && //
            Objects.equal(expectedHealthCheck.getUnhealthyThreshold(),
                    actualHealthCheck.getHealthyThreshold())) {
        // health check is ok
    } else {
        logger.info("Set Healthcheck: " + expectedHealthCheck);
        elb.configureHealthCheck(new ConfigureHealthCheckRequest(loadBalancerName, expectedHealthCheck));
    }

    // AVAILABILITY ZONES
    // enable
    Iterable<String> availabilityZonesToEnable = Sets.difference(expectedAvailabilityZones,
            actualAvailabilityZones);
    logger.info("Enable availability zones: " + availabilityZonesToEnable);
    if (!Iterables.isEmpty(availabilityZonesToEnable)) {
        elb.enableAvailabilityZonesForLoadBalancer(new EnableAvailabilityZonesForLoadBalancerRequest(
                loadBalancerName, Lists.newArrayList(availabilityZonesToEnable)));
    }

    // disable
    Iterable<String> availabilityZonesToDisable = Sets.difference(actualAvailabilityZones,
            expectedAvailabilityZones);
    logger.info("Disable availability zones: " + availabilityZonesToDisable);
    if (!Iterables.isEmpty(availabilityZonesToDisable)) {
        elb.disableAvailabilityZonesForLoadBalancer(new DisableAvailabilityZonesForLoadBalancerRequest(
                loadBalancerName, Lists.newArrayList(availabilityZonesToDisable)));
    }

    // STICKINESS
    List<AppCookieStickinessPolicy> appCookieStickinessPoliciesToDelete = actualPolicies
            .getAppCookieStickinessPolicies();
    logger.info("Delete app cookie stickiness policies:" + appCookieStickinessPoliciesToDelete);
    for (AppCookieStickinessPolicy appCookieStickinessPolicyToDelete : appCookieStickinessPoliciesToDelete) {
        elb.deleteLoadBalancerPolicy(new DeleteLoadBalancerPolicyRequest(loadBalancerName,
                appCookieStickinessPolicyToDelete.getPolicyName()));
    }

    final LBCookieStickinessPolicy expectedLbCookieStickinessPolicy = new LBCookieStickinessPolicy(
            applicationIdentifier + "-stickiness-policy", null);
    Predicate<LBCookieStickinessPolicy> isExpectedPolicyPredicate = new Predicate<LBCookieStickinessPolicy>() {
        @Override
        public boolean apply(LBCookieStickinessPolicy lbCookieStickinessPolicy) {
            return Objects.equal(expectedLbCookieStickinessPolicy.getPolicyName(),
                    lbCookieStickinessPolicy.getPolicyName()) && //
            Objects.equal(expectedLbCookieStickinessPolicy.getCookieExpirationPeriod(),
                    lbCookieStickinessPolicy.getCookieExpirationPeriod());
        }
    };
    Collection<LBCookieStickinessPolicy> lbCookieStickinessPoliciesToDelete = Collections2
            .filter(actualPolicies.getLBCookieStickinessPolicies(), Predicates.not(isExpectedPolicyPredicate));
    logger.info("Delete lb cookie stickiness policies: " + lbCookieStickinessPoliciesToDelete);
    for (LBCookieStickinessPolicy lbCookieStickinessPolicy : lbCookieStickinessPoliciesToDelete) {
        elb.deleteLoadBalancerPolicy(new DeleteLoadBalancerPolicyRequest(loadBalancerName,
                lbCookieStickinessPolicy.getPolicyName()));
    }

    Collection<LBCookieStickinessPolicy> matchingLbCookieStyckinessPolicy = Collections2
            .filter(actualPolicies.getLBCookieStickinessPolicies(), isExpectedPolicyPredicate);
    if (matchingLbCookieStyckinessPolicy.isEmpty()) {
        // COOKIE STICKINESS
        CreateLBCookieStickinessPolicyRequest createLbCookieStickinessPolicy = new CreateLBCookieStickinessPolicyRequest() //
                .withLoadBalancerName(loadBalancerName) //
                .withPolicyName(expectedLbCookieStickinessPolicy.getPolicyName()) //
                .withCookieExpirationPeriod(expectedLbCookieStickinessPolicy.getCookieExpirationPeriod());
        logger.info("Create LBCookieStickinessPolicy: " + createLbCookieStickinessPolicy);
        elb.createLBCookieStickinessPolicy(createLbCookieStickinessPolicy);

    } else {
        // what ?
    }

    // TODO verify load balancer policy is associated with the listener
    List<String> expectedListenerDescriptionPolicyNames = Lists
            .newArrayList(expectedLbCookieStickinessPolicy.getPolicyName());

    boolean mustOverWriteListenerPolicy = !ObjectUtils.equals(expectedListenerDescriptionPolicyNames,
            actualListenerDescription.getPolicyNames());

    if (mustOverWriteListenerPolicy) {

        SetLoadBalancerPoliciesOfListenerRequest setLoadBalancerPoliciesOfListenerRequest = new SetLoadBalancerPoliciesOfListenerRequest() //
                .withLoadBalancerName(loadBalancerName) //
                .withLoadBalancerPort(expectedListener.getLoadBalancerPort()) //
                .withPolicyNames(expectedLbCookieStickinessPolicy.getPolicyName());
        logger.debug("setLoadBalancerPoliciesOfListener: {}", setLoadBalancerPoliciesOfListenerRequest);
        elb.setLoadBalancerPoliciesOfListener(setLoadBalancerPoliciesOfListenerRequest);
    }

    // INSTANCES
    Set<String> expectedEc2InstanceIds = Sets
            .newHashSet(Iterables.transform(expectedEc2Instances, EC2_INSTANCE_TO_INSTANCE_ID));
    // register
    Iterable<String> instanceIdsToRegister = Sets.difference(expectedEc2InstanceIds, actualInstanceIds);
    logger.info("Register " + applicationIdentifier + " instances: " + instanceIdsToRegister);
    if (!Iterables.isEmpty(instanceIdsToRegister)) {
        elb.registerInstancesWithLoadBalancer(new RegisterInstancesWithLoadBalancerRequest(loadBalancerName,
                Lists.newArrayList(Iterables.transform(instanceIdsToRegister, INSTANCE_ID_TO_ELB_INSTANCE))));
    }

    // deregister
    Iterable<String> instanceIdsToDeregister = Sets.difference(actualInstanceIds, expectedEc2InstanceIds);
    logger.info("Deregister " + applicationIdentifier + " instances: " + instanceIdsToDeregister);
    if (!Iterables.isEmpty(instanceIdsToDeregister)) {
        elb.deregisterInstancesFromLoadBalancer(new DeregisterInstancesFromLoadBalancerRequest(loadBalancerName,
                Lists.newArrayList(Iterables.transform(instanceIdsToDeregister, INSTANCE_ID_TO_ELB_INSTANCE))));
    }

    // QUERY TO GET UP TO DATE LOAD BALANCER DESCRIPTION
    LoadBalancerDescription elasticLoadBalancerDescription = Iterables.getOnlyElement(
            elb.describeLoadBalancers(new DescribeLoadBalancersRequest(Arrays.asList(loadBalancerName)))
                    .getLoadBalancerDescriptions());

    return elasticLoadBalancerDescription;
}

From source file:web.component.impl.aws.model.LoadBalancerListenerImpl.java

private Listener copyElbListener(Listener source) {

    return new Listener().withInstancePort(source.getInstancePort())
            .withInstanceProtocol(source.getInstanceProtocol())
            .withLoadBalancerPort(source.getLoadBalancerPort()).withProtocol(source.getProtocol())
            .withSSLCertificateId(source.getSSLCertificateId());
}