| /* |
| * 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.ignite.internal.processors.hadoop.impl.igfs; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.ignite.internal.igfs.common.IgfsLogger; |
| |
| /** |
| * Secondary Hadoop file system output stream wrapper. |
| */ |
| public class HadoopIgfsProxyOutputStream extends OutputStream { |
| /** Actual output stream. */ |
| private FSDataOutputStream os; |
| |
| /** Client logger. */ |
| private final IgfsLogger clientLog; |
| |
| /** Log stream ID. */ |
| private final long logStreamId; |
| |
| /** Read time. */ |
| private long writeTime; |
| |
| /** User time. */ |
| private long userTime; |
| |
| /** Last timestamp. */ |
| private long lastTs; |
| |
| /** Amount of written bytes. */ |
| private long total; |
| |
| /** Closed flag. */ |
| private boolean closed; |
| |
| /** |
| * Constructor. |
| * |
| * @param os Actual output stream. |
| * @param clientLog Client logger. |
| * @param logStreamId Log stream ID. |
| */ |
| public HadoopIgfsProxyOutputStream(FSDataOutputStream os, IgfsLogger clientLog, long logStreamId) { |
| assert os != null; |
| assert clientLog != null; |
| |
| this.os = os; |
| this.clientLog = clientLog; |
| this.logStreamId = logStreamId; |
| |
| lastTs = System.nanoTime(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public synchronized void write(int b) throws IOException { |
| writeStart(); |
| |
| try { |
| os.write(b); |
| } |
| finally { |
| writeEnd(); |
| } |
| |
| total++; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public synchronized void write(byte[] b) throws IOException { |
| writeStart(); |
| |
| try { |
| os.write(b); |
| } |
| finally { |
| writeEnd(); |
| } |
| |
| total += b.length; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public synchronized void write(byte[] b, int off, int len) throws IOException { |
| writeStart(); |
| |
| try { |
| os.write(b, off, len); |
| } |
| finally { |
| writeEnd(); |
| } |
| |
| total += len; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public synchronized void flush() throws IOException { |
| writeStart(); |
| |
| try { |
| os.flush(); |
| } |
| finally { |
| writeEnd(); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public synchronized void close() throws IOException { |
| if (!closed) { |
| closed = true; |
| |
| writeStart(); |
| |
| try { |
| os.close(); |
| } |
| finally { |
| writeEnd(); |
| } |
| |
| if (clientLog.isLogEnabled()) |
| clientLog.logCloseOut(logStreamId, userTime, writeTime, total); |
| } |
| } |
| |
| /** |
| * Read start. |
| */ |
| private void writeStart() { |
| long now = System.nanoTime(); |
| |
| userTime += now - lastTs; |
| |
| lastTs = now; |
| } |
| |
| /** |
| * Read end. |
| */ |
| private void writeEnd() { |
| long now = System.nanoTime(); |
| |
| writeTime += now - lastTs; |
| |
| lastTs = now; |
| } |
| } |