2011-09-26 14:51:15 +02:00
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/*
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2012-06-04 22:31:44 +02:00
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* Copyright 2012 The Netty Project
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2011-09-26 14:51:15 +02:00
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*
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2011-12-09 06:18:34 +01:00
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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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2011-09-26 14:51:15 +02:00
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*
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2012-06-04 22:31:44 +02:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2011-09-26 14:51:15 +02:00
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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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2011-12-09 06:18:34 +01:00
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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2011-09-26 14:51:15 +02:00
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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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2011-12-09 04:38:59 +01:00
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package io.netty.handler.codec.http.websocketx;
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2011-09-26 14:51:15 +02:00
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2012-06-10 04:08:43 +02:00
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import io.netty.buffer.ByteBuf;
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2012-06-11 10:02:00 +02:00
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import io.netty.buffer.Unpooled;
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2012-04-09 06:33:45 +02:00
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import io.netty.util.CharsetUtil;
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2011-09-26 14:51:15 +02:00
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/**
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* Web Socket Frame for closing the connection
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*/
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public class CloseWebSocketFrame extends WebSocketFrame {
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2011-12-15 12:25:40 +01:00
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/**
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* Creates a new empty close frame.
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*/
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public CloseWebSocketFrame() {
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2012-06-11 10:02:00 +02:00
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setBinaryData(Unpooled.EMPTY_BUFFER);
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2011-12-15 12:25:40 +01:00
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}
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2011-10-16 08:01:24 +02:00
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2011-12-15 12:25:40 +01:00
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/**
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2012-04-09 06:33:45 +02:00
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* Creates a new empty close frame with closing status code and reason text
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2012-05-31 21:03:01 +02:00
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*
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2012-04-09 06:33:45 +02:00
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* @param statusCode
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* Integer status code as per <a href="http://tools.ietf.org/html/rfc6455#section-7.4">RFC 6455</a>. For
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* example, <tt>1000</tt> indicates normal closure.
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* @param reasonText
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* Reason text. Set to null if no text.
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*/
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public CloseWebSocketFrame(int statusCode, String reasonText) {
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this(true, 0, statusCode, reasonText);
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}
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/**
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* Creates a new close frame with no losing status code and no reason text
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2012-05-31 21:03:01 +02:00
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*
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2011-12-15 12:25:40 +01:00
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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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*/
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public CloseWebSocketFrame(boolean finalFragment, int rsv) {
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2012-04-09 06:33:45 +02:00
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this(finalFragment, rsv, null);
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}
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/**
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* Creates a new close frame with closing status code and reason text
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2012-05-31 21:03:01 +02:00
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*
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2012-04-09 06:33:45 +02:00
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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 statusCode
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* Integer status code as per <a href="http://tools.ietf.org/html/rfc6455#section-7.4">RFC 6455</a>. For
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* example, <tt>1000</tt> indicates normal closure.
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* @param reasonText
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* Reason text. Set to null if no text.
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*/
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public CloseWebSocketFrame(boolean finalFragment, int rsv, int statusCode, String reasonText) {
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setFinalFragment(finalFragment);
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setRsv(rsv);
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byte[] reasonBytes = new byte[0];
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if (reasonText != null) {
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reasonBytes = reasonText.getBytes(CharsetUtil.UTF_8);
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}
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2012-06-11 10:02:00 +02:00
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ByteBuf binaryData = Unpooled.buffer(2 + reasonBytes.length);
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2012-04-09 06:33:45 +02:00
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binaryData.writeShort(statusCode);
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if (reasonBytes.length > 0) {
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binaryData.writeBytes(reasonBytes);
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}
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binaryData.readerIndex(0);
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setBinaryData(binaryData);
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}
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/**
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* Creates a new close frame
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2012-05-31 21:03:01 +02:00
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*
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2012-04-09 06:33:45 +02:00
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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 2 byte integer followed by optional UTF-8 encoded string.
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*/
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2012-06-10 04:08:43 +02:00
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public CloseWebSocketFrame(boolean finalFragment, int rsv, ByteBuf binaryData) {
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2012-01-19 05:12:45 +01:00
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setFinalFragment(finalFragment);
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setRsv(rsv);
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2012-04-09 06:33:45 +02:00
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if (binaryData == null) {
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2012-06-11 10:02:00 +02:00
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setBinaryData(Unpooled.EMPTY_BUFFER);
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2012-04-09 06:33:45 +02:00
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} else {
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setBinaryData(binaryData);
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}
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}
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/**
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* Returns the closing status code as per <a href="http://tools.ietf.org/html/rfc6455#section-7.4">RFC 6455</a>. If
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* a status code is set, -1 is returned.
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*/
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public int getStatusCode() {
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2012-06-10 04:08:43 +02:00
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ByteBuf binaryData = getBinaryData();
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2012-04-09 06:33:45 +02:00
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if (binaryData == null || binaryData.capacity() == 0) {
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return -1;
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}
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binaryData.readerIndex(0);
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int statusCode = binaryData.readShort();
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binaryData.readerIndex(0);
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return statusCode;
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}
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/**
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* Returns the reason text as per <a href="http://tools.ietf.org/html/rfc6455#section-7.4">RFC 6455</a> If a reason
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* text is not supplied, an empty string is returned.
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*/
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public String getReasonText() {
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2012-06-10 04:08:43 +02:00
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ByteBuf binaryData = getBinaryData();
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2012-04-09 06:33:45 +02:00
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if (binaryData == null || binaryData.capacity() <= 2) {
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return "";
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}
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binaryData.readerIndex(2);
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String reasonText = binaryData.toString(CharsetUtil.UTF_8);
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binaryData.readerIndex(0);
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return reasonText;
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2011-12-15 12:25:40 +01:00
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}
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2011-11-04 19:28:15 +01:00
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2011-12-15 12:25:40 +01:00
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@Override
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public String toString() {
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return getClass().getSimpleName();
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}
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2011-09-26 14:51:15 +02:00
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}
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