001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.messaging.jmf.codec.std.impl;
023
024 import org.granite.messaging.jmf.JMFEncodingException;
025 import org.granite.messaging.jmf.codec.StandardCodec;
026
027 /**
028 * @author Franck WOLFF
029 */
030 public abstract class AbstractStandardCodec<T> implements StandardCodec<T> {
031
032 protected JMFEncodingException newBadTypeJMFEncodingException(int jmfType, int parameterizedJmfType) {
033 return new JMFEncodingException(
034 "Bad JMF type for " + getClass().getName() + ": " + jmfType +
035 " (parameterized: " + parameterizedJmfType + ")"
036 );
037 }
038
039 protected String escape(String s) {
040 if (s == null || s.length() == 0)
041 return s;
042
043 StringBuilder sb = new StringBuilder(s.length());
044
045 final int max = s.length();
046 for (int i = 0; i < max; i++) {
047 char c = s.charAt(i);
048 escape(c, sb);
049 }
050
051 return sb.toString();
052 }
053
054 protected String escape(char c) {
055 StringBuilder sb = new StringBuilder(6);
056 escape(c, sb);
057 return sb.toString();
058 }
059
060 protected void escape(char c, StringBuilder sb) {
061 if (c >= 0x20 && c <= 0x7F)
062 sb.append(c);
063 else {
064 switch (c) {
065 case '\n': sb.append("\\n"); break;
066 case '\t': sb.append("\\t"); break;
067 case '\r': sb.append("\\r"); break;
068 case '\'': sb.append("\\\'"); break;
069 case '\"': sb.append("\\\""); break;
070 case '\\': sb.append("\\\\"); break;
071 case '\b': sb.append("\\b"); break;
072 case '\f': sb.append("\\f"); break;
073 default: {
074 String hex = Integer.toHexString(c);
075 switch (hex.length()) {
076 case 1: sb.append("\\u000"); break;
077 case 2: sb.append("\\u00"); break;
078 case 3: sb.append("\\u0"); break;
079 default: sb.append("\\u"); break;
080 }
081 sb.append(hex);
082 break;
083 }
084 }
085 }
086 }
087 }