| /* |
| * 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.hudi.integ.testsuite.dag.nodes; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.UUID; |
| import org.apache.hudi.integ.testsuite.configuration.DeltaConfig.Config; |
| import org.apache.hudi.integ.testsuite.dag.ExecutionContext; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Base abstraction of an compute node in the DAG of operations for a workflow. |
| */ |
| public abstract class DagNode<O> implements Comparable<DagNode<O>> { |
| |
| protected static Logger log = LoggerFactory.getLogger(DagNode.class); |
| |
| protected List<DagNode<O>> childNodes; |
| protected List<DagNode<O>> parentNodes; |
| protected O result; |
| protected Config config; |
| private boolean isCompleted; |
| |
| public DagNode<O> addChildNode(DagNode childNode) { |
| childNode.getParentNodes().add(this); |
| getChildNodes().add(childNode); |
| return this; |
| } |
| |
| public DagNode<O> addParentNode(DagNode parentNode) { |
| if (!this.getParentNodes().contains(parentNode)) { |
| this.getParentNodes().add(parentNode); |
| } |
| return this; |
| } |
| |
| public O getResult() { |
| return result; |
| } |
| |
| public List<DagNode<O>> getChildNodes() { |
| if (childNodes == null) { |
| childNodes = new LinkedList<>(); |
| } |
| return childNodes; |
| } |
| |
| public List<DagNode<O>> getParentNodes() { |
| if (parentNodes == null) { |
| this.parentNodes = new ArrayList<>(); |
| } |
| return this.parentNodes; |
| } |
| |
| public void setParentNodes(List<DagNode<O>> parentNodes) { |
| this.parentNodes = parentNodes; |
| } |
| |
| /** |
| * Execute the {@link DagNode}. |
| * |
| * @param context The context needed for an execution of a node. |
| * @throws Exception Thrown if the execution failed. |
| */ |
| public abstract void execute(ExecutionContext context) throws Exception; |
| |
| public boolean isCompleted() { |
| return isCompleted; |
| } |
| |
| public void setCompleted(boolean completed) { |
| isCompleted = completed; |
| } |
| |
| public Config getConfig() { |
| return config; |
| } |
| |
| public String getName() { |
| Object name = this.config.getOtherConfigs().get(Config.NODE_NAME); |
| if (name == null) { |
| String randomName = UUID.randomUUID().toString(); |
| this.config.getOtherConfigs().put(Config.NODE_NAME, randomName); |
| return randomName; |
| } |
| return name.toString(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| DagNode<?> dagNode = (DagNode<?>) o; |
| return getName() == dagNode.getName(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(getName()); |
| } |
| |
| @Override |
| public int compareTo(DagNode<O> thatNode) { |
| return this.hashCode() - thatNode.hashCode(); |
| } |
| |
| } |