core/src/test/java/org/apache/hadoop/chukwa/validationframework/interceptor/SetupTestClasses.java

/*
 * 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.chukwa.validationframework.interceptor;


import java.lang.reflect.Field;
import org.apache.hadoop.chukwa.datacollection.ChunkQueue;
import org.apache.hadoop.chukwa.datacollection.DataFactory;

public class SetupTestClasses {
  public static void setupClasses() throws Throwable {
    setupChunkQueueInterceptor();
  }

  static protected void setupChunkQueueInterceptor() throws Throwable {
    DataFactory da = DataFactory.getInstance();
    ChunkQueue chunkQueue = da.getEventQueue();

    final Field fields[] = DataFactory.class.getDeclaredFields();
    for (int i = 0; i < fields.length; ++i) {
      if ("chunkQueue".equals(fields[i].getName())) {
        Field f = fields[i];
        f.setAccessible(true);
        ChunkQueue ci = new ChunkQueueInterceptor(chunkQueue);
        f.set(da, ci);
        System.out.println("Adding QueueInterceptor");
        break;
      }
    }
  }
}