| /* |
| * 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.IOException; |
| import java.io.OutputStream; |
| import java.nio.ByteBuffer; |
| |
| public interface TsFileOutput { |
| |
| /** |
| * Writes <code>b.length</code> bytes from the specified byte array to this output at the current |
| * position. |
| * |
| * @param b the data. |
| * @throws IOException if an I/O error occurs. |
| */ |
| void write(byte[] b) throws IOException; |
| |
| /** |
| * Writes 1 byte to this output at the current position. |
| * |
| * @param b the data. |
| * @throws IOException if an I/O error occurs. |
| */ |
| void write(byte b) throws IOException; |
| |
| /** |
| * Writes <code>b.remaining()</code> bytes from the specified byte array to this output at the |
| * current position. |
| * |
| * @param b the data. |
| * @throws IOException if an I/O error occurs. |
| */ |
| void write(ByteBuffer b) throws IOException; |
| |
| /** |
| * gets the current position of the Output. This method is usually used for recording where the |
| * data is. <br> |
| * For example, if the Output is a fileOutputStream, then getPosition returns its file position. |
| * |
| * @return current position |
| * @throws java.io.IOException if an I/O error occurs. |
| */ |
| long getPosition() throws IOException; |
| |
| /** |
| * close the output. |
| * |
| * @throws IOException if an I/O error occurs. |
| */ |
| void close() throws IOException; |
| |
| /** |
| * convert this TsFileOutput as a outputstream. |
| * |
| * @return an output stream whose position is the same with this Output |
| * @throws IOException if an I/O error occurs. |
| */ |
| OutputStream wrapAsStream() throws IOException; |
| |
| /** |
| * the same with {@link OutputStream#flush()}. |
| * |
| * @throws IOException if an I/O error occurs. |
| */ |
| void flush() throws IOException; |
| |
| /** |
| * The same with {@link java.nio.channels.FileChannel#truncate(long)}. |
| * |
| * @param size size The new size, a non-negative byte count |
| */ |
| void truncate(long size) throws IOException; |
| |
| /** Make sure that the data in the buffer is flushed to disk */ |
| void force() throws IOException; |
| } |