Examples of com.amazonaws.services.ec2.AmazonEC2AsyncClient

com.amazonaws.services.ec2.model.DescribeInstancesRequest
Asynchronous client for accessing AmazonEC2. All asynchronous calls made using this client are non-blocking. Callers could either process the result and handle the exceptions in the worker thread by providing a callback handler when making the call, or use the returned Future object to check the result of the call in the calling thread. Amazon Elastic Compute Cloud
Amazon Elastic Compute Cloud (Amazon EC2) provides resizable computing capacity in the Amazon Web Services (AWS) cloud. Using Amazon EC2 eliminates your need to invest in hardware up front, so you can develop and deploy applications faster.

       * If key exists and new key is created, delete old key and replace
       * with new one. Else, do nothing
       */


      if (newKey) {
        DeleteKeyPairRequest deleteKeyPairRequest = new DeleteKeyPairRequest(KEY_PAIR_NAME);
        ec2.deleteKeyPair(deleteKeyPairRequest);
        ImportKeyPairRequest importKeyPairRequest = new ImportKeyPairRequest(KEY_PAIR_NAME, encodedPublicKey);
        ec2.importKeyPair(importKeyPairRequest);
      }

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            ec2.describeKeyPairs(describeKeyPairsRequest.withKeyNames(keyPairName));


            /* If key exists and new key is created, delete old key and replace
             * with new one. Else, do nothing */
            if (newKey) {
                DeleteKeyPairRequest deleteKeyPairRequest = new DeleteKeyPairRequest(keyPairName);
                ec2.deleteKeyPair(deleteKeyPairRequest);
                ImportKeyPairRequest importKeyPairRequest = new ImportKeyPairRequest(keyPairName, encodedPublicKey);
                ec2.importKeyPair(importKeyPairRequest);
            }

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            ec2.describeKeyPairs(describeKeyPairsRequest.withKeyNames(keyPairName));


            /* If key exists and new key is created, delete old key and replace
             * with new one. Else, do nothing */
            if (newKey) {
                DeleteKeyPairRequest deleteKeyPairRequest = new DeleteKeyPairRequest(keyPairName);
                ec2.deleteKeyPair(deleteKeyPairRequest);
                ImportKeyPairRequest importKeyPairRequest = new ImportKeyPairRequest(keyPairName, encodedPublicKey);
                ec2.importKeyPair(importKeyPairRequest);
            }

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  }


  public void tagDelete(final String resourceId, final String key,
      final String value) {


    final DeleteTagsRequest request = new DeleteTagsRequest();


    final Collection<String> resourceList = new ArrayList<String>(1);
    resourceList.add(resourceId);


    final Collection<Tag> tagList = new ArrayList<Tag>(1);
    tagList.add(new Tag(key, value));


    request.setResources(resourceList);
    request.setTags(tagList);


    logger.info("tag delete request=" + request);


    amazonClient.deleteTags(request);

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             * computing capacity in AWS datacenters.
             *
             * In this sample, we use the EC2 client to list the availability zones
             * in a region, and then list the instances running in those zones.
             */
            DescribeAvailabilityZonesResult availabilityZonesResult = ec2.describeAvailabilityZones();
            List<AvailabilityZone> availabilityZones = availabilityZonesResult.getAvailabilityZones();
            System.out.println("You have access to " + availabilityZones.size() + " availability zones:");
            for (AvailabilityZone zone : availabilityZones) {
                System.out.println(" - " + zone.getZoneName() + " (" + zone.getRegionName() + ")");
            }

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    final long timeStart = System.currentTimeMillis();


    final List<String> imageIds = new ArrayList<String>();
    imageIds.add(imageId);


    final DescribeImagesRequest request = new DescribeImagesRequest();
    request.setImageIds(imageIds);


    while (true) {


      final DescribeImagesResult result = amazonClient
          .describeImages(request);

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    final DescribeImagesRequest request = new DescribeImagesRequest();
    request.setImageIds(imageIds);


    while (true) {


      final DescribeImagesResult result = amazonClient
          .describeImages(request);


      final List<Image> imageList = result.getImages();


      final Image image;


      if (isTimeoutPending(timeStart)) {
        image = newImageWithStatus(State.UNKNOWN.value, "timeout",

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      if (ami_id != null)
        this.instance = startInstances(ec2client, ami_id, ins_type, invocationContext.getExecutionContext().getNotificationService()).get(0);
      else {


        // already running instance
        DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest();
        DescribeInstancesResult describeInstancesResult = ec2client.describeInstances(describeInstancesRequest.withInstanceIds(ins_id));


        if (describeInstancesResult.getReservations().size() == 0 || describeInstancesResult.getReservations().get(0).getInstances().size() == 0) {
          throw new GfacException("Instance not found:" + ins_id, FaultCode.InvalidRequest);
        }

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        Thread.sleep(SLEEP_TIME_SECOND * 1000l);
      } catch (Exception ex) {
        // no op
      }


      DescribeInstancesRequest describeInstancesRequest = new DescribeInstancesRequest();
      describeInstancesRequest.setInstanceIds(getInstanceIDs(instances));


      DescribeInstancesResult describeInstancesResult = ec2.describeInstances(describeInstancesRequest);
      instances = describeInstancesResult.getReservations().get(0).getInstances();
    }

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    }


    @Override public List<DiscoveryNode> buildDynamicNodes() {
        List<DiscoveryNode> discoNodes = Lists.newArrayList();


        DescribeInstancesResult descInstances = client.describeInstances(new DescribeInstancesRequest());


        logger.trace("building dynamic unicast discovery nodes...");
        for (Reservation reservation : descInstances.getReservations()) {
            if (!groups.isEmpty()) {
                // lets see if we can filter based on groups

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