| /** |
| * Copyright (c) 2016 DataTorrent, Inc. ALL Rights Reserved. |
| * |
| * Licensed 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 com.datatorrent.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> |
| * |
| * @author Chetan Narsude <chetan@datatorrent.com> |
| * @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); |
| } |