| /* |
| * 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.pig.backend.hadoop.executionengine.spark; |
| |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.pig.backend.hadoop.executionengine.spark.plan.SparkOpPlanVisitor; |
| import org.apache.pig.backend.hadoop.executionengine.spark.plan.SparkOperPlan; |
| import org.apache.pig.backend.hadoop.executionengine.spark.plan.SparkOperator; |
| import org.apache.pig.impl.PigContext; |
| import org.apache.pig.impl.plan.DependencyOrderWalker; |
| import org.apache.pig.impl.plan.VisitorException; |
| import org.apache.pig.impl.util.JarManager; |
| |
| //find udf jars which will be downloaded with spark job on every nodes |
| public class UDFJarsFinder extends SparkOpPlanVisitor { |
| private PigContext pigContext = null; |
| private Set<String> udfJars = new HashSet(); |
| |
| public UDFJarsFinder(SparkOperPlan plan, PigContext pigContext) { |
| super(plan, new DependencyOrderWalker(plan)); |
| this.pigContext = pigContext; |
| } |
| |
| public void visitSparkOp(SparkOperator sparkOp) |
| throws VisitorException { |
| for (String udf : sparkOp.UDFs) { |
| try { |
| Class clazz = this.pigContext.getClassForAlias(udf); |
| if (clazz != null) { |
| String jar = JarManager.findContainingJar(clazz); |
| if (jar != null) { |
| this.udfJars.add(jar); |
| } |
| } |
| } catch (IOException e) { |
| throw new VisitorException(e); |
| } |
| } |
| } |
| |
| public Set<String> getUdfJars() { |
| return this.udfJars; |
| } |
| } |