netty5/src/main/java/io/netty/channel/FixedReceiveBufferSizePredictor.java
2011-12-09 12:46:59 +09:00

53 lines
1.6 KiB
Java

/*
* Copyright 2009 Red Hat, Inc.
*
* Red Hat 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 io.netty.channel;
/**
* The {@link ReceiveBufferSizePredictor} that always yields the same buffer
* size prediction. This predictor ignores the feed back from the I/O thread.
*
* @author <a href="http://netty.io/">The Netty Project</a>
* @author <a href="http://gleamynode.net/">Trustin Lee</a>
*/
public class FixedReceiveBufferSizePredictor implements
ReceiveBufferSizePredictor {
private final int bufferSize;
/**
* Creates a new predictor that always returns the same prediction of
* the specified buffer size.
*/
public FixedReceiveBufferSizePredictor(int bufferSize) {
if (bufferSize <= 0) {
throw new IllegalArgumentException(
"bufferSize must greater than 0: " + bufferSize);
}
this.bufferSize = bufferSize;
}
@Override
public int nextReceiveBufferSize() {
return bufferSize;
}
@Override
public void previousReceiveBufferSize(int previousReceiveBufferSize) {
// Ignore
}
}