310f31b392
Motivation: We need to update to a new checkstyle plugin to allow the usage of lambdas. Modifications: - Update to new plugin version. - Fix checkstyle problems. Result: Be able to use checkstyle plugin which supports new Java syntax.
59 lines
2.1 KiB
Java
59 lines
2.1 KiB
Java
/*
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* Copyright 2014 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.handler.codec.http.websocketx.extensions.compression;
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import io.netty.handler.codec.http.websocketx.BinaryWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.ContinuationWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
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import io.netty.handler.codec.http.websocketx.WebSocketFrame;
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import io.netty.handler.codec.http.websocketx.extensions.WebSocketExtension;
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/**
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* Per-frame implementation of deflate compressor.
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*/
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class PerFrameDeflateEncoder extends DeflateEncoder {
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/**
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* Constructor
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* @param compressionLevel compression level of the compressor.
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* @param windowSize maximum size of the window compressor buffer.
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* @param noContext true to disable context takeover.
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*/
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PerFrameDeflateEncoder(int compressionLevel, int windowSize, boolean noContext) {
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super(compressionLevel, windowSize, noContext);
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}
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@Override
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public boolean acceptOutboundMessage(Object msg) throws Exception {
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return (msg instanceof TextWebSocketFrame ||
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msg instanceof BinaryWebSocketFrame ||
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msg instanceof ContinuationWebSocketFrame) &&
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((WebSocketFrame) msg).content().readableBytes() > 0 &&
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(((WebSocketFrame) msg).rsv() & WebSocketExtension.RSV1) == 0;
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}
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@Override
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protected int rsv(WebSocketFrame msg) {
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return msg.rsv() | WebSocketExtension.RSV1;
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}
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@Override
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protected boolean removeFrameTail(WebSocketFrame msg) {
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return true;
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}
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}
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