42c65cca3a
- Move common methods from ByteBuf to Buf - Rename ensureWritableBytes() to ensureWritable() - Rename readable() to isReadable() - Rename writable() to isWritable() - Add isReadable(int) and isWritable(int) - Add AbstractMessageBuf - Rewrite DefaultMessageBuf and QueueBackedMessageBuf - based on Josh Bloch's public domain ArrayDeque impl
127 lines
2.7 KiB
Java
127 lines
2.7 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.buffer;
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import java.util.Collection;
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import java.util.Iterator;
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import java.util.Queue;
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final class QueueBackedMessageBuf<T> extends AbstractMessageBuf<T> {
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private final Queue<T> queue;
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QueueBackedMessageBuf(Queue<T> queue) {
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super(Integer.MAX_VALUE);
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if (queue == null) {
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throw new NullPointerException("queue");
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}
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this.queue = queue;
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}
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@Override
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public boolean offer(T e) {
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checkUnfreed();
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return isWritable() && queue.offer(e);
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}
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@Override
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public T poll() {
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checkUnfreed();
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return queue.poll();
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}
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@Override
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public T peek() {
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checkUnfreed();
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return queue.peek();
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}
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@Override
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public int size() {
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return queue.size();
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}
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@Override
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public boolean isEmpty() {
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return queue.isEmpty();
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}
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@Override
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public boolean contains(Object o) {
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checkUnfreed();
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return queue.contains(o);
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}
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@Override
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public Iterator<T> iterator() {
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checkUnfreed();
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return queue.iterator();
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}
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@Override
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public Object[] toArray() {
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checkUnfreed();
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return queue.toArray();
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}
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@Override
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public <E> E[] toArray(E[] a) {
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checkUnfreed();
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return queue.toArray(a);
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}
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@Override
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public boolean remove(Object o) {
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checkUnfreed();
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return queue.remove(o);
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}
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@Override
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public boolean containsAll(Collection<?> c) {
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checkUnfreed();
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return queue.containsAll(c);
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}
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@Override
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public boolean addAll(Collection<? extends T> c) {
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checkUnfreed();
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return isWritable(c.size()) && queue.addAll(c);
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}
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@Override
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public boolean removeAll(Collection<?> c) {
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checkUnfreed();
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return queue.removeAll(c);
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}
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@Override
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public boolean retainAll(Collection<?> c) {
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checkUnfreed();
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return queue.retainAll(c);
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}
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@Override
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public void clear() {
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checkUnfreed();
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queue.clear();
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}
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@Override
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protected void doFree() {
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clear();
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}
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}
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