Examples with BatchProgramCount io.cdap.cdap.proto.BatchProgramCount used on opensource projects

Example 1 with BatchProgramCount

use of io.cdap.cdap.proto.BatchProgramCount in project cdap by caskdata.

the class ProgramLifecycleHttpHandler method getRunCounts.

/**
 * Returns the run counts for all program runnables 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.
 * The max number of programs in the request is 100.
 * <p>
 * Example input:
 * <pre><code>
 * [{"appId": "App1", "programType": "Service", "programId": "Service1"},
 *  {"appId": "App1", "programType": "Workflow", "programId": "testWorkflow"},
 *  {"appId": "App2", "programType": "Workflow", "programId": "DataPipelineWorkflow"}]
 * </code></pre>
 * </p><p>
 * </p><p>
 * The response will be an array of JsonObjects each of which will contain the three input parameters
 * as well as 2 fields, "runCount" which maps to the count of the program and "statusCode" 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, workflow in app1 does not exist),
 * then all JsonObjects for which the parameters have a valid status will have the count 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 workflow in App1 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, "runCount": 20},
 * {"appId": "App1", "programType": "Workflow", "programId": "testWorkflow", "statusCode": 404,
 * "error": "Program 'testWorkflow' is not found"},
 *  {"appId": "App2", "programType": "Workflow", "programId": "DataPipelineWorkflow",
 *  "statusCode": 200, "runCount": 300}]
 * </code></pre>
 */
@POST
@Path("/runcount")
public void getRunCounts(FullHttpRequest request, HttpResponder responder, @PathParam("namespace-id") String namespaceId) throws Exception {
    List<BatchProgram> programs = validateAndGetBatchInput(request, BATCH_PROGRAMS_TYPE);
    if (programs.size() > 100) {
        throw new BadRequestException(String.format("%d programs found in the request, the maximum number " + "supported is 100", programs.size()));
    }
    List<ProgramId> programIds = programs.stream().map(batchProgram -> new ProgramId(namespaceId, batchProgram.getAppId(), batchProgram.getProgramType(), batchProgram.getProgramId())).collect(Collectors.toList());
    List<BatchProgramCount> counts = new ArrayList<>(programs.size());
    for (RunCountResult runCountResult : lifecycleService.getProgramRunCounts(programIds)) {
        ProgramId programId = runCountResult.getProgramId();
        Exception exception = runCountResult.getException();
        if (exception == null) {
            counts.add(new BatchProgramCount(programId, HttpResponseStatus.OK.code(), null, runCountResult.getCount()));
        } else if (exception instanceof NotFoundException) {
            counts.add(new BatchProgramCount(programId, HttpResponseStatus.NOT_FOUND.code(), exception.getMessage(), null));
        } else if (exception instanceof UnauthorizedException) {
            counts.add(new BatchProgramCount(programId, HttpResponseStatus.FORBIDDEN.code(), exception.getMessage(), null));
        } else {
            counts.add(new BatchProgramCount(programId, HttpResponseStatus.INTERNAL_SERVER_ERROR.code(), exception.getMessage(), null));
        }
    }
    responder.sendJson(HttpResponseStatus.OK, GSON.toJson(counts));
}