1 /* 2 * Copyright 2009 Red Hat, Inc. 3 * 4 * Red Hat licenses this file to you under the Apache License, version 2.0 5 * (the "License"); you may not use this file except in compliance with the 6 * License. You may obtain a copy of the License at: 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations 14 * under the License. 15 */ 16 package org.jboss.netty.handler.codec.frame; 17 18 import org.jboss.netty.buffer.ChannelBuffer; 19 import org.jboss.netty.buffer.ChannelBuffers; 20 21 /** 22 * A set of commonly used delimiters for {@link DelimiterBasedFrameDecoder}. 23 * 24 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a> 25 * @author <a href="http://gleamynode.net/">Trustin Lee</a> 26 * 27 * @version $Rev:231 $, $Date:2008-06-12 16:44:50 +0900 (목, 12 6월 2008) $ 28 * 29 */ 30 public class Delimiters { 31 32 /** 33 * Returns a {@code NUL (0x00)} delimiter, which could be used for 34 * Flash XML socket or any similar protocols. 35 */ 36 public static ChannelBuffer[] nulDelimiter() { 37 return new ChannelBuffer[] { 38 ChannelBuffers.wrappedBuffer(new byte[] { 0 }) }; 39 } 40 41 /** 42 * Returns {@code CR ('\r')} and {@code LF ('\n')} delimiters, which could 43 * be used for text-based line protocols. 44 */ 45 public static ChannelBuffer[] lineDelimiter() { 46 return new ChannelBuffer[] { 47 ChannelBuffers.wrappedBuffer(new byte[] { '\r', '\n' }), 48 ChannelBuffers.wrappedBuffer(new byte[] { '\n' }), 49 }; 50 } 51 52 private Delimiters() { 53 // Unused 54 } 55 }