| /* |
| * 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.wayang.core.plan.executionplan; |
| |
| import org.apache.commons.lang3.Validate; |
| import org.apache.wayang.core.platform.Platform; |
| |
| import java.util.Collection; |
| import java.util.LinkedList; |
| import java.util.Set; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Complete data flow on a single platform, that consists of multiple {@link ExecutionStage}s. |
| */ |
| public class PlatformExecution { |
| |
| private static final AtomicInteger SEQUENCE_NUMBER_GENERATOR = new AtomicInteger(0); |
| |
| private final int sequenceNumber; |
| |
| private Collection<ExecutionStage> stages = new LinkedList<>(); |
| |
| private final Platform platform; |
| |
| public PlatformExecution(Platform platform) { |
| this.platform = platform; |
| this.sequenceNumber = SEQUENCE_NUMBER_GENERATOR.getAndIncrement(); |
| } |
| |
| void addStage(ExecutionStage stage) { |
| Validate.isTrue(stage.getPlatformExecution() == this); |
| this.stages.add(stage); |
| } |
| |
| public Collection<ExecutionStage> getStages() { |
| return this.stages; |
| } |
| |
| public Platform getPlatform() { |
| return this.platform; |
| } |
| |
| public ExecutionStage createStage(ExecutionStageLoop executionStageLoop, int sequenceNumber) { |
| return new ExecutionStage(this, executionStageLoop, sequenceNumber); |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("%s[%s]", this.getClass().getSimpleName(), this.platform); |
| } |
| |
| int getSequenceNumber() { |
| return this.sequenceNumber; |
| } |
| |
| public void retain(Set<ExecutionStage> retainableStages) { |
| this.stages.retainAll(retainableStages); |
| } |
| } |