| /* |
| * 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.test; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.pig.builtin.PigStorage; |
| import org.apache.pig.impl.PigContext; |
| import org.apache.pig.impl.util.UDFContext; |
| |
| import java.io.IOException; |
| import java.util.Properties; |
| |
| /** |
| * Please see {@link TestRegisteredJarVisibility} for information about this class. |
| */ |
| public class RegisteredJarVisibilityLoader extends PigStorage { |
| private static final Log LOG = LogFactory.getLog(RegisteredJarVisibilityLoader.class); |
| private static final String REGISTERED_JAR_VISIBILITY_SCHEMA = "registered.jar.visibility.schema"; |
| |
| public RegisteredJarVisibilityLoader() throws IOException, ClassNotFoundException { |
| // make sure classes that were visible here and through current |
| // PigContext are the same |
| Class<?> clazz = ClassLoaderSanityCheck.class; |
| Class<?> loadedClass = Class.forName(clazz.getName(), true, PigContext.getClassLoader()); |
| if (!clazz.equals(loadedClass)) { |
| throw new RuntimeException("class loader sanity check failed. " |
| + "please make sure jar registration does not result in " |
| + "multiple instances of same classes"); |
| } |
| } |
| |
| @Override |
| public void setLocation(String location, Job job) throws IOException { |
| UDFContext udfContext = UDFContext.getUDFContext(); |
| Properties properties = udfContext.getUDFProperties(RegisteredJarVisibilityLoader.class); |
| |
| if (!properties.containsKey(REGISTERED_JAR_VISIBILITY_SCHEMA)) { |
| LOG.info("Storing " + RegisteredJarVisibilitySchema.class.getName() + " in UDFContext."); |
| properties.put(REGISTERED_JAR_VISIBILITY_SCHEMA, new RegisteredJarVisibilitySchema()); |
| LOG.info("Stored " + RegisteredJarVisibilitySchema.class.getName() + " in UDFContext."); |
| } else { |
| LOG.info("Retrieving " + REGISTERED_JAR_VISIBILITY_SCHEMA + " from UDFContext."); |
| RegisteredJarVisibilitySchema registeredJarVisibilitySchema = |
| (RegisteredJarVisibilitySchema) properties.get(REGISTERED_JAR_VISIBILITY_SCHEMA); |
| LOG.info("Retrieved " + REGISTERED_JAR_VISIBILITY_SCHEMA + " from UDFContext."); |
| } |
| |
| super.setLocation(location, job); |
| } |
| } |