Example usage for com.amazonaws.services.elasticmapreduce.model ListClustersResult getClusters

Introduction

In this page you can find the example usage for com.amazonaws.services.elasticmapreduce.model ListClustersResult getClusters.

Prototype

public java.util.List<ClusterSummary> getClusters() 

Source Link

Document

The list of clusters for the account based on the given filters.

Usage

From source file:org.finra.dm.dao.impl.EmrDaoImpl.java

License:Apache License

/**
 * Get an Active EMR cluster by the cluster name. Cluster only in following states are returned: ClusterState.BOOTSTRAPPING, ClusterState.RUNNING,
 * ClusterState.STARTING, ClusterState.WAITING
 *
 * @param awsParams AWS related parameters for access/secret keys and proxy details.
 * @param clusterName the cluster name value.
 *
 * @return the ClusterSummary object.//from   www  .  jav  a 2  s  .c  om
 */
@Override
public ClusterSummary getActiveEmrClusterByName(String clusterName, AwsParamsDto awsParams) {
    if (StringUtils.isNotBlank(clusterName)) {
        /**
         * Call AWSOperations for ListClusters API. Need to list all the active clusters that are in
         * BOOTSTRAPPING/RUNNING/STARTING/WAITING states
         */
        ListClustersRequest listClustersRequest = new ListClustersRequest()
                .withClusterStates(getActiveEmrClusterStates());

        /**
         * ListClusterRequest returns only 50 clusters at a time. However, this returns a marker
         * that can be used for subsequent calls to listClusters to get all the clusters
         */
        String markerForListClusters = listClustersRequest.getMarker();

        // Loop through all the available clusters and look for the given cluster id
        do {
            /**
             * Call AWSOperations for ListClusters API.
             * Need to include the Marker returned by the previous iteration
             */
            ListClustersResult clusterResult = emrOperations.listEmrClusters(getEmrClient(awsParams),
                    listClustersRequest.withMarker(markerForListClusters));

            // Loop through all the active clusters returned by AWS
            for (ClusterSummary clusterInstance : clusterResult.getClusters()) {
                // If the cluster name matches, then return the status
                if (StringUtils.isNotBlank(clusterInstance.getName())
                        && clusterInstance.getName().equalsIgnoreCase(clusterName)) {
                    return clusterInstance;
                }
            }
            markerForListClusters = clusterResult.getMarker();
        } while (markerForListClusters != null);
    }

    return null;
}

---

From source file:org.finra.herd.dao.impl.EmrDaoImpl.java

License:Apache License

@Override
public ClusterSummary getActiveEmrClusterByName(String clusterName, AwsParamsDto awsParams) {
    if (StringUtils.isNotBlank(clusterName)) {
        /**/*from  w  w  w . j a  v a 2  s.  co  m*/
         * Call AWSOperations for ListClusters API. Need to list all the active clusters that are in
         * BOOTSTRAPPING/RUNNING/STARTING/WAITING states
         */
        ListClustersRequest listClustersRequest = new ListClustersRequest()
                .withClusterStates(getActiveEmrClusterStates());

        /**
         * ListClusterRequest returns only 50 clusters at a time. However, this returns a marker
         * that can be used for subsequent calls to listClusters to get all the clusters
         */
        String markerForListClusters = listClustersRequest.getMarker();

        // Loop through all the available clusters and look for the given cluster id
        do {
            /**
             * Call AWSOperations for ListClusters API.
             * Need to include the Marker returned by the previous iteration
             */
            ListClustersResult clusterResult = emrOperations.listEmrClusters(getEmrClient(awsParams),
                    listClustersRequest.withMarker(markerForListClusters));

            // Loop through all the active clusters returned by AWS
            for (ClusterSummary clusterInstance : clusterResult.getClusters()) {
                // If the cluster name matches, then return the status
                if (StringUtils.isNotBlank(clusterInstance.getName())
                        && clusterInstance.getName().equalsIgnoreCase(clusterName)) {
                    return clusterInstance;
                }
            }
            markerForListClusters = clusterResult.getMarker();
        } while (markerForListClusters != null);
    }

    return null;
}

---

From source file:rollsPOC2.util.AWSHelper.java

public static ClusterSummary findCluster(String clusterName, AmazonElasticMapReduce emr) {
    ListClustersResult clusters = emr.listClusters();

    for (ClusterSummary clusterSummary : clusters.getClusters()) {
        if (clusterSummary.getName().equals(clusterName)) {
            return clusterSummary;
        }/* w  w w . j a  va2s  . c o m*/
    }

    return null;
}

---