| /** |
| * 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.physicalLayer.plans; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.pig.LoadFunc; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLoad; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POStore; |
| import org.apache.pig.impl.PigContext; |
| import org.apache.pig.impl.plan.DepthFirstWalker; |
| import org.apache.pig.impl.plan.VisitorException; |
| |
| public class UdfCacheShipFilesVisitor extends PhyPlanVisitor { |
| private Set<String> cacheFiles = new HashSet<String>(); |
| private Set<String> shipFiles = new HashSet<String>(); |
| |
| public UdfCacheShipFilesVisitor(PhysicalPlan plan) { |
| super(plan, new DepthFirstWalker<PhysicalOperator, PhysicalPlan>(plan)); |
| } |
| |
| @Override |
| public void visitLoad(POLoad ld) throws VisitorException { |
| if (ld.getCacheFiles() != null) { |
| cacheFiles.addAll(ld.getCacheFiles()); |
| } |
| if (ld.getShipFiles() != null) { |
| shipFiles.addAll(ld.getShipFiles()); |
| } |
| } |
| |
| @Override |
| public void visitStore(POStore st) throws VisitorException { |
| if (st.getCacheFiles() != null) { |
| cacheFiles.addAll(st.getCacheFiles()); |
| } |
| if (st.getShipFiles() != null) { |
| shipFiles.addAll(st.getShipFiles()); |
| } |
| } |
| |
| public void visitUserFunc(POUserFunc udf) throws VisitorException { |
| if (udf.getCacheFiles() != null) { |
| cacheFiles.addAll(udf.getCacheFiles()); |
| } |
| if (udf.getShipFiles() != null) { |
| shipFiles.addAll(udf.getShipFiles()); |
| } |
| } |
| |
| @Override |
| public void visitCast(POCast cast) { |
| if (cast.getFuncSpec()!=null) { |
| Object obj = PigContext.instantiateFuncFromSpec(cast.getFuncSpec()); |
| if (obj instanceof LoadFunc) { |
| LoadFunc loadFunc = (LoadFunc)obj; |
| if (loadFunc.getCacheFiles()!=null) { |
| cacheFiles.addAll(loadFunc.getCacheFiles()); |
| } |
| if (loadFunc.getShipFiles()!=null) { |
| shipFiles.addAll(loadFunc.getShipFiles()); |
| } |
| } |
| } |
| } |
| |
| public Set<String> getCacheFiles() { |
| return cacheFiles; |
| } |
| |
| public Set<String> getShipFiles() { |
| return shipFiles; |
| } |
| } |