| /* |
| * 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.iotdb.tsfile.write.writer; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * a TsFileOutput implementation with FileOutputStream. If the file is not existed, it will be |
| * created. Otherwise the file will be written from position 0. |
| */ |
| public class LocalTsFileOutput extends OutputStream implements TsFileOutput { |
| |
| private FileOutputStream outputStream; |
| private BufferedOutputStream bufferedStream; |
| private long position; |
| |
| public LocalTsFileOutput(FileOutputStream outputStream) { |
| this.outputStream = outputStream; |
| this.bufferedStream = new BufferedOutputStream(outputStream); |
| position = 0; |
| } |
| |
| @Override |
| public void write(int b) throws IOException { |
| bufferedStream.write(b); |
| position++; |
| } |
| |
| @Override |
| public void write(byte[] b) throws IOException { |
| bufferedStream.write(b); |
| position += b.length; |
| } |
| |
| @Override |
| public void write(byte b) throws IOException { |
| bufferedStream.write(b); |
| position++; |
| } |
| |
| @Override |
| public void write(byte[] buf, int start, int offset) throws IOException { |
| bufferedStream.write(buf, start, offset); |
| position += offset; |
| } |
| |
| @Override |
| public void write(ByteBuffer b) throws IOException { |
| bufferedStream.write(b.array()); |
| position += b.array().length; |
| } |
| |
| @Override |
| public long getPosition() { |
| return position; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| bufferedStream.close(); |
| outputStream.close(); |
| } |
| |
| @Override |
| public OutputStream wrapAsStream() { |
| return this; |
| } |
| |
| @Override |
| public void flush() throws IOException { |
| this.bufferedStream.flush(); |
| } |
| |
| @Override |
| public void truncate(long size) throws IOException { |
| bufferedStream.flush(); |
| outputStream.getChannel().truncate(size); |
| position = outputStream.getChannel().position(); |
| } |
| |
| @Override |
| public void force() throws IOException { |
| flush(); |
| outputStream.getFD().sync(); |
| } |
| } |