| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.beam.runners.gearpump; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.beam.sdk.Pipeline; |
| import org.apache.beam.sdk.PipelineResult; |
| import org.apache.beam.sdk.metrics.MetricResults; |
| |
| import org.apache.gearpump.cluster.ApplicationStatus; |
| import org.apache.gearpump.cluster.MasterToAppMaster.AppMasterData; |
| import org.apache.gearpump.cluster.client.ClientContext; |
| import org.apache.gearpump.cluster.client.RunningApplication; |
| import org.joda.time.Duration; |
| |
| import scala.collection.JavaConverters; |
| import scala.collection.Seq; |
| |
| /** |
| * Result of executing a {@link Pipeline} with Gearpump. |
| */ |
| public class GearpumpPipelineResult implements PipelineResult { |
| |
| private final ClientContext client; |
| private final RunningApplication app; |
| private boolean finished = false; |
| |
| public GearpumpPipelineResult(ClientContext client, RunningApplication app) { |
| this.client = client; |
| this.app = app; |
| } |
| |
| @Override |
| public State getState() { |
| if (!finished) { |
| return getGearpumpState(); |
| } else { |
| return State.DONE; |
| } |
| } |
| |
| @Override |
| public State cancel() throws IOException { |
| if (!finished) { |
| app.shutDown(); |
| finished = true; |
| return State.CANCELLED; |
| } else { |
| return State.DONE; |
| } |
| } |
| |
| @Override |
| public State waitUntilFinish(Duration duration) { |
| return waitUntilFinish(); |
| } |
| |
| @Override |
| public State waitUntilFinish() { |
| if (!finished) { |
| app.waitUntilFinish(); |
| finished = true; |
| } |
| return State.DONE; |
| } |
| |
| @Override |
| public MetricResults metrics() { |
| throw new UnsupportedOperationException( |
| String.format("%s does not support querying metrics", getClass().getSimpleName())); |
| } |
| |
| private State getGearpumpState() { |
| ApplicationStatus status = null; |
| List<AppMasterData> apps = |
| JavaConverters.<AppMasterData>seqAsJavaListConverter( |
| (Seq<AppMasterData>) client.listApps().appMasters()).asJava(); |
| for (AppMasterData appData: apps) { |
| if (appData.appId() == app.appId()) { |
| status = appData.status(); |
| } |
| } |
| if (null == status || status instanceof ApplicationStatus.NONEXIST$) { |
| return State.UNKNOWN; |
| } else if (status instanceof ApplicationStatus.ACTIVE$) { |
| return State.RUNNING; |
| } else if (status instanceof ApplicationStatus.SUCCEEDED$) { |
| return State.DONE; |
| } else { |
| return State.FAILED; |
| } |
| } |
| } |