Examples of co.cask.cdap.api.flow.FlowSpecification

co.cask.cdap.api.flow.FlowSpecification

This class provides the specification of a Flow. Instances of this class should be created through the {@link Builder} class by invoking the {@link Builder#with()} method.

Example FlowSpecification:

  public class PurchaseFlow implements Flow { {@literal @}Override public FlowSpecification configure() { return FlowSpecification.Builder.with() .setName("PurchaseFlow") .setDescription("Reads user and purchase information and stores in dataset") .withFlowlets() .add("reader", new PurchaseStreamReader()) .add("collector", new PurchaseStore()) .connect() .fromStream("purchaseStream").to("reader") .from("reader").to("collector") .build(); } }

See the Cask DAP Developer Guide and the CDAP instance example applications. @see co.cask.cdap.api.flow.flowlet.Flowlet Flowlet

            responder.sendJson(HttpResponseStatus.BAD_REQUEST, "Must provide a string runnableId for flows/services");
            return;
          }
          runnableId = requestedObj.getRunnableId();
          if (programType == ProgramType.FLOW) {
            FlowSpecification flowSpec = spec.getFlows().get(programId);
            if (flowSpec != null) {
              Map<String, FlowletDefinition> flowletSpecs = flowSpec.getFlowlets();
              if (flowletSpecs != null && flowletSpecs.containsKey(runnableId)) {
                requested = flowletSpecs.get(runnableId).getInstances();
              } else {
                addCodeError(requestedObj, HttpResponseStatus.NOT_FOUND.getCode(),
                             "Flowlet: " + runnableId + " not found");

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co.cask.cdap.app.DefaultAppConfigurer

co.cask.cdap.gateway.handlers.AppFabricHttpHandler

co.cask.cdap.internal.app.deploy.pipeline.DeletedProgramHandlerStage

co.cask.cdap.internal.app.runtime.distributed.DistributedFlowProgramRunner

co.cask.cdap.internal.app.runtime.distributed.DistributedProgramRuntimeService

co.cask.cdap.internal.app.runtime.flow.FlowletProgramRunner

co.cask.cdap.internal.app.runtime.flow.FlowProgramRunner

co.cask.cdap.internal.app.store.DefaultStore

co.cask.cdap.internal.flow.DefaultFlowSpecification

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