content: /**
   * 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.apex.malhar.flume.storage;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.flume.Context;
  import org.apache.flume.conf.Configurable;
  
  import com.datatorrent.api.Component;
  import com.datatorrent.netlet.util.Slice;
  
  /**
   * <p>DebugWrapper class.</p>
   *
   * @since 0.9.4
   */
  public class DebugWrapper implements Storage, Configurable, Component<com.datatorrent.api.Context>
  {
    HDFSStorage storage = new HDFSStorage();
  
    @Override
    public byte[] store(Slice bytes)
    {
      byte[] ret = null;
  
      try {
        ret = storage.store(bytes);
      } finally {
        logger.debug("storage.store(new byte[]{{}});", bytes);
      }
  
      return ret;
    }
  
    @Override
    public byte[] retrieve(byte[] identifier)
    {
      byte[] ret = null;
  
      try {
        ret = storage.retrieve(identifier);
      } finally {
        logger.debug("storage.retrieve(new byte[]{{}});", identifier);
      }
  
      return ret;
    }
  
    @Override
    public byte[] retrieveNext()
    {
      byte[] ret = null;
      try {
        ret = storage.retrieveNext();
      } finally {
        logger.debug("storage.retrieveNext();");
      }
  
      return ret;
    }
  
    @Override
    public void clean(byte[] identifier)
    {
      try {
        storage.clean(identifier);
      } finally {
        logger.debug("storage.clean(new byte[]{{}});", identifier);
      }
    }
  
    @Override
    public void flush()
    {
      try {
        storage.flush();
      } finally {
        logger.debug("storage.flush();");
      }
    }
  
    @Override
    public void configure(Context cntxt)
    {
      try {
        storage.configure(cntxt);
      } finally {
        logger.debug("storage.configure({});", cntxt);
      }
    }
  
    @Override
    public void setup(com.datatorrent.api.Context t1)
    {
      try {
        storage.setup(t1);
      } finally {
        logger.debug("storage.setup({});", t1);
      }
  
    }
  
    @Override
    public void teardown()
    {
      try {
        storage.teardown();
      } finally {
        logger.debug("storage.teardown();");
      }
    }
  
    private static final Logger logger = LoggerFactory.getLogger(DebugWrapper.class);
  }
  