102 lines
3.1 KiB
Java
102 lines
3.1 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.handler.codec.http.websocketx;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.Unpooled;
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import io.netty.util.CharsetUtil;
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/**
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* Web Socket text frame with assumed UTF-8 encoding
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*/
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public class TextWebSocketFrame extends WebSocketFrame {
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/**
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* Creates a new empty text frame.
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*/
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public TextWebSocketFrame() {
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super(Unpooled.buffer(0));
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}
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/**
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* Creates a new text frame with the specified text string. The final fragment flag is set to true.
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*
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* @param text
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* String to put in the frame
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*/
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public TextWebSocketFrame(String text) {
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super(fromText(text));
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}
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/**
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* Creates a new text frame with the specified binary data. The final fragment flag is set to true.
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*
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* @param binaryData
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* the content of the frame. Must be UTF-8 encoded
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*/
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public TextWebSocketFrame(ByteBuf binaryData) {
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super(binaryData);
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}
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/**
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* Creates a new text frame with the specified text string. The final fragment flag is set to true.
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*
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* @param finalFragment
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* flag indicating if this frame is the final fragment
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* @param rsv
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* reserved bits used for protocol extensions
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* @param text
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* String to put in the frame
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*/
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public TextWebSocketFrame(boolean finalFragment, int rsv, String text) {
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super(finalFragment, rsv, fromText(text));
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}
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private static ByteBuf fromText(String text) {
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if (text == null || text.isEmpty()) {
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return Unpooled.EMPTY_BUFFER;
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} else {
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return Unpooled.copiedBuffer(text, CharsetUtil.UTF_8);
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}
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}
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/**
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* Creates a new text frame with the specified binary data. The final fragment flag is set to true.
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*
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* @param finalFragment
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* flag indicating if this frame is the final fragment
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* @param rsv
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* reserved bits used for protocol extensions
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* @param binaryData
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* the content of the frame. Must be UTF-8 encoded
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*/
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public TextWebSocketFrame(boolean finalFragment, int rsv, ByteBuf binaryData) {
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super(finalFragment, rsv, binaryData);
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}
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/**
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* Returns the text data in this frame
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*/
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public String text() {
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return data().toString(CharsetUtil.UTF_8);
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}
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@Override
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public TextWebSocketFrame copy() {
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return new TextWebSocketFrame(isFinalFragment(), rsv(), data().copy());
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}
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}
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