netty5/codec-http/src/main/java/io/netty/handler/codec/http/websocketx/TextWebSocketFrame.java
Trustin Lee 1e0c83db23 Introduce AddressedEnvelope message type for generic representation of an addressed message
- Fixes #1282 (not perfectly, but to the extent it's possible with the current API)
- Add AddressedEnvelope and DefaultAddressedEnvelope
- Make DatagramPacket extend DefaultAddressedEnvelope<ByteBuf, InetSocketAddress>
- Rename ByteBufHolder.data() to content() so that a message can implement both AddressedEnvelope and ByteBufHolder (DatagramPacket does) without introducing two getter methods for the content
- Datagram channel implementations now understand ByteBuf and ByteBufHolder as a message with unspecified remote address.
2013-05-01 17:04:43 +09:00

114 lines
3.3 KiB
Java

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