Java tutorial
/* * Copyright 2012 The Netty Project * * The Netty Project 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; import static io.netty.util.internal.ObjectUtil.checkPositive; /** * The {@link RecvByteBufAllocator} that always yields the same buffer * size prediction. This predictor ignores the feed back from the I/O thread. */ public class FixedRecvByteBufAllocator extends DefaultMaxMessagesRecvByteBufAllocator { private final int bufferSize; private final class HandleImpl extends MaxMessageHandle { private final int bufferSize; HandleImpl(int bufferSize) { this.bufferSize = bufferSize; } @Override public int guess() { return bufferSize; } } /** * Creates a new predictor that always returns the same prediction of * the specified buffer size. */ public FixedRecvByteBufAllocator(int bufferSize) { checkPositive(bufferSize, "bufferSize"); this.bufferSize = bufferSize; } @SuppressWarnings("deprecation") @Override public Handle newHandle() { return new HandleImpl(bufferSize); } @Override public FixedRecvByteBufAllocator respectMaybeMoreData(boolean respectMaybeMoreData) { super.respectMaybeMoreData(respectMaybeMoreData); return this; } }