| package org.apache.bookkeeper.bookie; |
| |
| /* |
| * |
| * 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. |
| * |
| */ |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.ByteBufAllocator; |
| import java.io.IOException; |
| import java.nio.channels.FileChannel; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Strictly for testing. |
| * Have to be alongside with prod code for Journal to inject in tests. |
| */ |
| public class SlowBufferedChannel extends BufferedChannel { |
| public volatile long getDelay = 0; |
| public volatile long addDelay = 0; |
| public volatile long flushDelay = 0; |
| |
| public SlowBufferedChannel(ByteBufAllocator allocator, FileChannel fc, int capacity) throws IOException { |
| super(allocator, fc, capacity); |
| } |
| |
| public SlowBufferedChannel(ByteBufAllocator allocator, FileChannel fc, int writeCapacity, int readCapacity) |
| throws IOException { |
| super(allocator, fc, writeCapacity, readCapacity); |
| } |
| |
| public void setAddDelay(long delay) { |
| addDelay = delay; |
| } |
| |
| public void setGetDelay(long delay) { |
| getDelay = delay; |
| } |
| |
| public void setFlushDelay(long delay) { |
| flushDelay = delay; |
| } |
| |
| @Override |
| public synchronized void write(ByteBuf src) throws IOException { |
| delayMs(addDelay); |
| super.write(src); |
| } |
| |
| @Override |
| public void flush() throws IOException { |
| delayMs(flushDelay); |
| super.flush(); |
| } |
| |
| @Override |
| public long forceWrite(boolean forceMetadata) throws IOException { |
| delayMs(flushDelay); |
| return super.forceWrite(forceMetadata); |
| } |
| |
| @Override |
| public synchronized int read(ByteBuf dest, long pos) throws IOException { |
| delayMs(getDelay); |
| return super.read(dest, pos); |
| } |
| |
| private static void delayMs(long delay) { |
| if (delay < 1) { |
| return; |
| } |
| try { |
| TimeUnit.MILLISECONDS.sleep(delay); |
| } catch (InterruptedException e) { |
| //noop |
| } |
| } |
| } |