Examples of com.amazonaws.services.ec2.AmazonEC2

com.amazonaws.services.ec2.model.Instance
Interface for accessing AmazonEC2. 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.

    }


    @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
                List<String> groupNames = reservation.getGroupNames();
                if (bindAnyGroup) {
                    if (Collections.disjoint(groups, groupNames)) {

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    private Instance describeInstance(AmazonEC2Client ec2, String ec2InstanceId) {
        Instance ec2Instance = null;
        {
            DescribeInstancesRequest request = new DescribeInstancesRequest();
            request.setInstanceIds(Collections.singletonList(ec2InstanceId));
            DescribeInstancesResult response = ec2.describeInstances(request);


            List<Reservation> reservations = response.getReservations();
            for (Reservation reservation : reservations) {
                for (Instance i : reservation.getInstances()) {
                    if (ec2Instance != null) {
                        throw new IllegalStateException();
                    }

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     */
    try {
      /*
       * Get current key pair in Amazon
       */
      DescribeKeyPairsRequest describeKeyPairsRequest = new DescribeKeyPairsRequest();
      ec2.describeKeyPairs(describeKeyPairsRequest.withKeyNames(KEY_PAIR_NAME));


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

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        }


        /* Generate key pair in Amazon if necessary */
        try {
            /* Get current key pair in Amazon */
            DescribeKeyPairsRequest describeKeyPairsRequest = new DescribeKeyPairsRequest();
            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);

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   * 
   * @return list of keypairs
   */
  public static List<String> loadKeypairs(){
    List<String> resultList = new ArrayList<String>();
    DescribeKeyPairsResult results = getEC2Client().describeKeyPairs();
    for (KeyPairInfo key : results.getKeyPairs()) {
      resultList.add(key.getKeyName());
    }
    return resultList;
  }

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       */


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


    } catch (AmazonServiceException ase) {
      /*
       * Key doesn't exists, import new key.
       */
      if(ase.getErrorCode().equals("InvalidKeyPair.NotFound")){      
        ImportKeyPairRequest importKeyPairRequest = new ImportKeyPairRequest(KEY_PAIR_NAME, encodedPublicKey);
        ec2.importKeyPair(importKeyPairRequest);
      }else{
        throw ase;
      }
    }

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            /* 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);
            }


        } catch (AmazonServiceException ase) {
            /* Key doesn't exists, import new key. */
            if (ase.getErrorCode().equals("InvalidKeyPair.NotFound")) {
                ImportKeyPairRequest importKeyPairRequest = new ImportKeyPairRequest(keyPairName, encodedPublicKey);
                ec2.importKeyPair(importKeyPairRequest);
            } else {
                throw ase;
            }
        }

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    }
  }


  private boolean anyInstancesStateEqual(List<Instance> instances, InstanceStateName name) {
    for (Iterator<Instance> iterator = instances.iterator(); iterator.hasNext();) {
      Instance instance = (Instance) iterator.next();


      // if one of instance is not running, return false
      if (InstanceStateName.fromValue(instance.getState().getName()) == name) {
        return true;
      }
    }
    return false;
  }

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    return false;
  }


  private boolean allInstancesStateEqual(List<Instance> instances, InstanceStateName name) {
    for (Iterator<Instance> iterator = instances.iterator(); iterator.hasNext();) {
      Instance instance = (Instance) iterator.next();


      // if one of instance is not running, return false
      if (InstanceStateName.fromValue(instance.getState().getName()) != name) {
        return false;
      }
    }
    return true;
  }

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  }


  private List<String> getInstanceIDs(List<Instance> instances) {
    List<String> ret = new ArrayList<String>();
    for (Iterator<Instance> iterator = instances.iterator(); iterator.hasNext();) {
      Instance instance = (Instance) iterator.next();
      ret.add(instance.getInstanceId());
    }
    return ret;
  }

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