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
023 package org.granite.generator.gsp;
024
025 import java.util.List;
026
027 import org.granite.generator.gsp.token.Comment;
028 import org.granite.generator.gsp.token.Expression;
029 import org.granite.generator.gsp.token.Scriplet;
030 import org.granite.generator.gsp.token.TemplateText;
031 import org.granite.generator.gsp.token.Token;
032
033 /**
034 * @author Franck WOLFF
035 */
036 public class GroovyRenderer implements Renderer {
037
038 private String source = null;
039
040 @Override
041 public String renderSource(List<Token> tokens) {
042 return renderSource(tokens, null);
043 }
044
045 @Override
046 public String renderSource(List<Token> tokens, String out) {
047 StringBuilder sb = new StringBuilder(1024);
048
049 for (Token token : tokens) {
050 if (token instanceof TemplateText) {
051 String content = token.getContent();
052
053 if (content.length() > 0) {
054 int iLast = content.length() - 1;
055 sb.append("print(\"");
056
057 for (int i = 0; i < content.length(); i++) {
058 char c = content.charAt(i);
059
060 switch (c) {
061 case '\\':
062 sb.append("\\\\");
063 break;
064 case '"' :
065 sb.append("\\\"");
066 break;
067 case '\n':
068 sb.append("\\n\");\n");
069 if (i < iLast)
070 sb.append("print(\"");
071 break;
072 case '\f':
073 sb.append("\\f");
074 break;
075 default :
076 sb.append(c);
077 break;
078 }
079 }
080
081 if (content.charAt(iLast) != '\n')
082 sb.append("\");\n");
083 }
084 }
085 else if (token instanceof Expression)
086 sb.append("print(").append(token.getContent()).append(");\n");
087 else if (token instanceof Scriplet)
088 sb.append(token.getContent()).append('\n');
089 else if (!(token instanceof Comment))
090 throw new UnsupportedOperationException("Unsupported token (not implemented): " + token);
091 }
092
093 source = sb.toString();
094
095 return source;
096 }
097
098 @Override
099 public String getSource() {
100 return source;
101 }
102 }