| /** |
| * 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.hadoop.mapreduce.v2.app.webapp; |
| |
| import java.util.Set; |
| import java.util.HashSet; |
| import java.util.Arrays; |
| |
| import com.sun.jersey.api.json.JSONConfiguration; |
| import com.sun.jersey.api.json.JSONJAXBContext; |
| import com.google.inject.Singleton; |
| |
| import javax.ws.rs.ext.ContextResolver; |
| import javax.ws.rs.ext.Provider; |
| import javax.xml.bind.JAXBContext; |
| |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AMAttemptInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AMAttemptsInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.AppInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ConfEntryInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.CounterGroupInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.CounterInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobCounterInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobsInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskAttemptCounterInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.JobTaskCounterInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.ReduceTaskAttemptInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptsInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskCounterGroupInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskCounterInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskInfo; |
| import org.apache.hadoop.mapreduce.v2.app.webapp.dao.TasksInfo; |
| import org.apache.hadoop.yarn.webapp.RemoteExceptionData; |
| |
| @Singleton |
| @Provider |
| public class JAXBContextResolver implements ContextResolver<JAXBContext> { |
| |
| private JAXBContext context; |
| private final Set<Class> types; |
| |
| // you have to specify all the dao classes here |
| private final Class[] cTypes = {AMAttemptInfo.class, AMAttemptsInfo.class, |
| AppInfo.class, CounterInfo.class, JobTaskAttemptCounterInfo.class, |
| JobTaskCounterInfo.class, TaskCounterGroupInfo.class, ConfInfo.class, |
| JobCounterInfo.class, TaskCounterInfo.class, CounterGroupInfo.class, |
| JobInfo.class, JobsInfo.class, ReduceTaskAttemptInfo.class, |
| TaskAttemptInfo.class, TaskInfo.class, TasksInfo.class, |
| TaskAttemptsInfo.class, ConfEntryInfo.class, RemoteExceptionData.class}; |
| |
| public JAXBContextResolver() throws Exception { |
| this.types = new HashSet<Class>(Arrays.asList(cTypes)); |
| this.context = new JSONJAXBContext(JSONConfiguration.natural(). |
| rootUnwrapping(false).build(), cTypes); |
| } |
| |
| @Override |
| public JAXBContext getContext(Class<?> objectType) { |
| return (types.contains(objectType)) ? context : null; |
| } |
| } |