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.carbondata.core.writer;
  
  import java.io.BufferedWriter;
  import java.io.DataOutputStream;
  import java.io.IOException;
  import java.io.OutputStreamWriter;
  
  import org.apache.carbondata.common.logging.LogServiceFactory;
  import org.apache.carbondata.core.constants.CarbonCommonConstants;
  import org.apache.carbondata.core.datastore.impl.FileFactory;
  import org.apache.carbondata.core.mutate.DeleteDeltaBlockDetails;
  
  import com.google.gson.Gson;
  import org.apache.log4j.Logger;
  
  /**
   * This class is responsible for writing the delete delta file
   */
  public class CarbonDeleteDeltaWriterImpl implements CarbonDeleteDeltaWriter {
  
    /**
     * LOGGER
     */
    private static final Logger LOGGER =
        LogServiceFactory.getLogService(CarbonDeleteDeltaWriterImpl.class.getName());
  
    private String filePath;
  
    private DataOutputStream dataOutStream = null;
  
    /**
     * @param filePath
     */
    public CarbonDeleteDeltaWriterImpl(String filePath) {
      this.filePath = filePath;
  
    }
  
    /**
     * This method will write the deleted records data in the json format.
     * @param deleteDeltaBlockDetails
     * @throws IOException
     */
    @Override
    public void write(DeleteDeltaBlockDetails deleteDeltaBlockDetails) throws IOException {
      BufferedWriter brWriter = null;
      try {
        FileFactory.createNewFile(filePath);
        dataOutStream = FileFactory.getDataOutputStream(filePath);
        Gson gsonObjectToWrite = new Gson();
        brWriter = new BufferedWriter(new OutputStreamWriter(dataOutStream,
            CarbonCommonConstants.DEFAULT_CHARSET));
        String deletedData = gsonObjectToWrite.toJson(deleteDeltaBlockDetails);
        brWriter.write(deletedData);
      } catch (IOException ioe) {
        LOGGER.error("Error message: " + ioe.getLocalizedMessage());
        throw ioe;
      } finally {
        if (null != brWriter) {
          brWriter.flush();
        }
        if (null != dataOutStream) {
          dataOutStream.flush();
        }
        if (null != brWriter) {
          brWriter.close();
        }
      }
  
    }
  }
  