Examples with StringRepresentation org.restlet.representation.StringRepresentation used on opensource projects

Example 31 with StringRepresentation

use of org.restlet.representation.StringRepresentation in project helix by apache.

the class JobQueuesResource method get.

/**
 * List all job queues
 * <p>
 * Usage: <code>curl http://{host:port}/clusters/{clusterName}/jobQueues
 */
@Override
public Representation get() {
    StringRepresentation presentation = null;
    try {
        String clusterName = ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.CLUSTER_NAME);
        presentation = getHostedEntitiesRepresentation(clusterName);
    } catch (Exception e) {
        String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
        presentation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
        LOG.error("Fail to get all job queues", e);
    }
    return presentation;
}

Example 32 with StringRepresentation

use of org.restlet.representation.StringRepresentation in project helix by apache.

the class JobResource method getHostedEntitiesRepresentation.

StringRepresentation getHostedEntitiesRepresentation(String clusterName, String jobQueueName, String jobName) throws Exception {
    ZkClient zkClient = ResourceUtil.getAttributeFromCtx(getContext(), ResourceUtil.ContextKey.ZKCLIENT);
    HelixDataAccessor accessor = ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);
    PropertyKey.Builder keyBuilder = accessor.keyBuilder();
    // Get job queue config
    String namespacedJobName = TaskUtil.getNamespacedJobName(jobQueueName, jobName);
    HelixProperty jobConfig = accessor.getProperty(keyBuilder.resourceConfig(namespacedJobName));
    TaskDriver taskDriver = new TaskDriver(zkClient, clusterName);
    // Get job queue context
    JobContext ctx = taskDriver.getJobContext(namespacedJobName);
    // Create the result
    ZNRecord hostedEntitiesRecord = new ZNRecord(namespacedJobName);
    if (jobConfig != null) {
        hostedEntitiesRecord.merge(jobConfig.getRecord());
    }
    if (ctx != null) {
        hostedEntitiesRecord.merge(ctx.getRecord());
    }
    StringRepresentation representation = new StringRepresentation(ClusterRepresentationUtil.ZNRecordToJson(hostedEntitiesRecord), MediaType.APPLICATION_JSON);
    return representation;
}

Example 33 with StringRepresentation

use of org.restlet.representation.StringRepresentation in project helix by apache.

the class JobResource method delete.

@Override
public Representation delete() {
    StringRepresentation representation = null;
    String clusterName = ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.CLUSTER_NAME);
    String jobQueueName = ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.JOB_QUEUE);
    String jobName = ResourceUtil.getAttributeFromRequest(getRequest(), ResourceUtil.RequestKey.JOB);
    ZkClient zkClient = ResourceUtil.getAttributeFromCtx(getContext(), ResourceUtil.ContextKey.ZKCLIENT);
    TaskDriver driver = new TaskDriver(zkClient, clusterName);
    try {
        driver.deleteJob(jobQueueName, jobName);
        getResponse().setStatus(Status.SUCCESS_NO_CONTENT);
    } catch (Exception e) {
        String error = ClusterRepresentationUtil.getErrorAsJsonStringFromException(e);
        representation = new StringRepresentation(error, MediaType.APPLICATION_JSON);
        LOG.error("Fail to delete job: " + jobName, e);
    }
    return representation;
}

Example 34 with StringRepresentation

use of org.restlet.representation.StringRepresentation in project helix by apache.

the class SchedulerTasksResource method getSchedulerTasksRepresentation.

StringRepresentation getSchedulerTasksRepresentation() throws JsonGenerationException, JsonMappingException, IOException {
    String clusterName = (String) getRequest().getAttributes().get("clusterName");
    String instanceName = (String) getRequest().getAttributes().get("instanceName");
    ZkClient zkClient = (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
    ClusterSetup setupTool = new ClusterSetup(zkClient);
    List<String> instances = setupTool.getClusterManagementTool().getInstancesInCluster(clusterName);
    HelixDataAccessor accessor = ClusterRepresentationUtil.getClusterDataAccessor(zkClient, clusterName);
    LiveInstance liveInstance = accessor.getProperty(accessor.keyBuilder().liveInstance(instanceName));
    String sessionId = liveInstance.getSessionId();
    // (ClusterRepresentationUtil.ObjectToJson(instanceConfigs),
    StringRepresentation representation = new StringRepresentation("");
    return representation;
}

Example 35 with StringRepresentation

use of org.restlet.representation.StringRepresentation in project helix by apache.

the class StateModelResource method getStateModelRepresentation.

StringRepresentation getStateModelRepresentation(String clusterName, String modelName) throws JsonGenerationException, JsonMappingException, IOException {
    Builder keyBuilder = new PropertyKey.Builder(clusterName);
    ZkClient zkClient = (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
    String message = ClusterRepresentationUtil.getClusterPropertyAsString(zkClient, clusterName, keyBuilder.stateModelDef(modelName), MediaType.APPLICATION_JSON);
    StringRepresentation representation = new StringRepresentation(message, MediaType.APPLICATION_JSON);
    return representation;
}