001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2013 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.messaging.jmf.codec.std.impl;
022
023 import org.granite.messaging.jmf.JMFEncodingException;
024 import org.granite.messaging.jmf.codec.StandardCodec;
025
026 /**
027 * @author Franck WOLFF
028 */
029 public abstract class AbstractStandardCodec<T> implements StandardCodec<T> {
030
031 protected JMFEncodingException newBadTypeJMFEncodingException(int jmfType, int parameterizedJmfType) {
032 return new JMFEncodingException(
033 "Bad JMF type for " + getClass().getName() + ": " + jmfType +
034 " (parameterized: " + parameterizedJmfType + ")"
035 );
036 }
037
038 protected String escape(String s) {
039 if (s == null || s.length() == 0)
040 return s;
041
042 StringBuilder sb = new StringBuilder(s.length());
043
044 final int max = s.length();
045 for (int i = 0; i < max; i++) {
046 char c = s.charAt(i);
047 escape(c, sb);
048 }
049
050 return sb.toString();
051 }
052
053 protected String escape(char c) {
054 StringBuilder sb = new StringBuilder(6);
055 escape(c, sb);
056 return sb.toString();
057 }
058
059 protected void escape(char c, StringBuilder sb) {
060 if (c >= 0x20 && c <= 0x7F)
061 sb.append(c);
062 else {
063 switch (c) {
064 case '\n': sb.append("\\n"); break;
065 case '\t': sb.append("\\t"); break;
066 case '\r': sb.append("\\r"); break;
067 case '\'': sb.append("\\\'"); break;
068 case '\"': sb.append("\\\""); break;
069 case '\\': sb.append("\\\\"); break;
070 case '\b': sb.append("\\b"); break;
071 case '\f': sb.append("\\f"); break;
072 default: {
073 String hex = Integer.toHexString(c);
074 switch (hex.length()) {
075 case 1: sb.append("\\u000"); break;
076 case 2: sb.append("\\u00"); break;
077 case 3: sb.append("\\u0"); break;
078 default: sb.append("\\u"); break;
079 }
080 sb.append(hex);
081 break;
082 }
083 }
084 }
085 }
086 }