Examples with BatchProgramResult co.cask.cdap.proto.BatchProgramResult used on opensource projects

Example 6 with BatchProgramResult

use of co.cask.cdap.proto.BatchProgramResult in project cdap by caskdata.

the class ProgramLifecycleHttpHandler method startPrograms.

/**
   * Starts all programs that are passed into the data. The data is an array of JSON objects
   * where each object must contain the following three elements: appId, programType, and programId
   * (flow name, service name, etc.). In additional, each object can contain an optional runtimeargs element,
   * which is a map of arguments to start the program with.
   * <p>
   * Example input:
   * <pre><code>
   * [{"appId": "App1", "programType": "Service", "programId": "Service1"},
   * {"appId": "App1", "programType": "Mapreduce", "programId": "MapReduce2", "runtimeargs":{"arg1":"val1"}},
   * {"appId": "App2", "programType": "Flow", "programId": "Flow1"}]
   * </code></pre>
   * </p><p>
   * The response will be an array of JsonObjects each of which will contain the three input parameters
   * as well as a "statusCode" field which maps to the status code for the data in that JsonObjects.
   * </p><p>
   * If an error occurs in the input (for the example above, App2 does not exist), then all JsonObjects for which the
   * parameters have a valid status will have the status field but all JsonObjects for which the parameters do not have
   * a valid status will have an error message and statusCode.
   * </p><p>
   * For example, if there is no App2 in the data above, then the response would be 200 OK with following possible data:
   * </p>
   * <pre><code>
   * [{"appId": "App1", "programType": "Service", "programId": "Service1", "statusCode": 200},
   * {"appId": "App1", "programType": "Mapreduce", "programId": "Mapreduce2", "statusCode": 200},
   * {"appId":"App2", "programType":"Flow", "programId":"Flow1", "statusCode":404, "error": "App: App2 not found"}]
   * </code></pre>
   */
@POST
@Path("/start")
@AuditPolicy({ AuditDetail.REQUEST_BODY, AuditDetail.RESPONSE_BODY })
public void startPrograms(HttpRequest request, HttpResponder responder, @PathParam("namespace-id") String namespaceId) throws Exception {
    List<BatchProgramStart> programs = validateAndGetBatchInput(request, BATCH_STARTS_TYPE);
    List<BatchProgramResult> output = new ArrayList<>(programs.size());
    for (BatchProgramStart program : programs) {
        ProgramId programId = new ProgramId(namespaceId, program.getAppId(), program.getProgramType(), program.getProgramId());
        try {
            ProgramController programController = lifecycleService.start(programId, program.getRuntimeargs(), false);
            output.add(new BatchProgramResult(program, HttpResponseStatus.OK.getCode(), null, programController.getRunId().getId()));
        } catch (NotFoundException e) {
            output.add(new BatchProgramResult(program, HttpResponseStatus.NOT_FOUND.getCode(), e.getMessage()));
        } catch (BadRequestException e) {
            output.add(new BatchProgramResult(program, HttpResponseStatus.BAD_REQUEST.getCode(), e.getMessage()));
        } catch (ConflictException e) {
            output.add(new BatchProgramResult(program, HttpResponseStatus.CONFLICT.getCode(), e.getMessage()));
        }
    }
    responder.sendJson(HttpResponseStatus.OK, output);
}

Example 7 with BatchProgramResult

use of co.cask.cdap.proto.BatchProgramResult in project cdap by caskdata.

the class ProgramLifecycleHttpHandler method stopPrograms.

/**
   * Stops all programs that are passed into the data. The data is an array of JSON objects
   * where each object must contain the following three elements: appId, programType, and programId
   * (flow name, service name, etc.).
   * <p>
   * Example input:
   * <pre><code>
   * [{"appId": "App1", "programType": "Service", "programId": "Service1"},
   * {"appId": "App1", "programType": "Mapreduce", "programId": "MapReduce2"},
   * {"appId": "App2", "programType": "Flow", "programId": "Flow1"}]
   * </code></pre>
   * </p><p>
   * The response will be an array of JsonObjects each of which will contain the three input parameters
   * as well as a "statusCode" field which maps to the status code for the data in that JsonObjects.
   * </p><p>
   * If an error occurs in the input (for the example above, App2 does not exist), then all JsonObjects for which the
   * parameters have a valid status will have the status field but all JsonObjects for which the parameters do not have
   * a valid status will have an error message and statusCode.
   * </p><p>
   * For example, if there is no App2 in the data above, then the response would be 200 OK with following possible data:
   * </p>
   * <pre><code>
   * [{"appId": "App1", "programType": "Service", "programId": "Service1", "statusCode": 200},
   * {"appId": "App1", "programType": "Mapreduce", "programId": "Mapreduce2", "statusCode": 200},
   * {"appId":"App2", "programType":"Flow", "programId":"Flow1", "statusCode":404, "error": "App: App2 not found"}]
   * </code></pre>
   */
@POST
@Path("/stop")
@AuditPolicy({ AuditDetail.REQUEST_BODY, AuditDetail.RESPONSE_BODY })
public void stopPrograms(HttpRequest request, HttpResponder responder, @PathParam("namespace-id") String namespaceId) throws Exception {
    List<BatchProgram> programs = validateAndGetBatchInput(request, BATCH_PROGRAMS_TYPE);
    List<ListenableFuture<BatchProgramResult>> issuedStops = new ArrayList<>(programs.size());
    for (final BatchProgram program : programs) {
        ProgramId programId = new ProgramId(namespaceId, program.getAppId(), program.getProgramType(), program.getProgramId());
        try {
            List<ListenableFuture<ProgramController>> stops = lifecycleService.issueStop(programId, null);
            for (ListenableFuture<ProgramController> stop : stops) {
                ListenableFuture<BatchProgramResult> issuedStop = Futures.transform(stop, new Function<ProgramController, BatchProgramResult>() {

                    @Override
                    public BatchProgramResult apply(ProgramController input) {
                        return new BatchProgramResult(program, HttpResponseStatus.OK.getCode(), null, input.getRunId().getId());
                    }
                });
                issuedStops.add(issuedStop);
            }
        } catch (NotFoundException e) {
            issuedStops.add(Futures.immediateFuture(new BatchProgramResult(program, HttpResponseStatus.NOT_FOUND.getCode(), e.getMessage())));
        } catch (BadRequestException e) {
            issuedStops.add(Futures.immediateFuture(new BatchProgramResult(program, HttpResponseStatus.BAD_REQUEST.getCode(), e.getMessage())));
        }
    }
    List<BatchProgramResult> output = new ArrayList<>(programs.size());
    // need to keep this index in case there is an exception getting the future, since we won't have the program
    // information in that scenario
    int i = 0;
    for (ListenableFuture<BatchProgramResult> issuedStop : issuedStops) {
        try {
            output.add(issuedStop.get());
        } catch (Throwable t) {
            LOG.warn(t.getMessage(), t);
            output.add(new BatchProgramResult(programs.get(i), HttpResponseStatus.INTERNAL_SERVER_ERROR.getCode(), t.getMessage()));
        }
        i++;
    }
    responder.sendJson(HttpResponseStatus.OK, output);
}