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1
37
38 package org.htmlcleaner;
39
40 import java.io.BufferedWriter  ;
41 import java.io.IOException ;
42 import java.io.Writer ;
43 import java.util.Iterator ;
44 import java.util.List ;
45 import java.util.Map ;
46
47
53 public abstract class XmlSerializer {
54
55 protected final String XML_DECLARATION = "<?xml version=\"1.0\"?>";
56
57 protected HtmlCleaner htmlCleaner;
58 protected BufferedWriter writer;
59
60 protected XmlSerializer() {
61 }
62
63 protected XmlSerializer(Writer writer, HtmlCleaner htmlCleaner) {
64 this.writer = new BufferedWriter (writer);
65 this.htmlCleaner = htmlCleaner;
66 }
67
68 protected void createXml(TagNode tagNode) throws IOException {
69 if ( !htmlCleaner.isOmitXmlDeclaration() ) {
70 writer.write(XML_DECLARATION + "\n");
71 }
72
73 if ( !htmlCleaner.isOmitDoctypeDeclaration() ) {
74 DoctypeToken doctypeToken = htmlCleaner.getDoctype();
75 if ( doctypeToken != null ) {
76 doctypeToken.serialize(this);
77 }
78 }
79
80 serialize(tagNode);
81
82 writer.flush();
83 writer.close();
84 }
85
86 protected String escapeXml(String xmlContent) {
87 return Utils.escapeXml(
88 xmlContent,
89 htmlCleaner.isAdvancedXmlEscape(),
90 htmlCleaner.isRecognizeUnicodeChars(),
91 htmlCleaner.isTranslateSpecialEntities()
92 );
93 }
94
95 protected boolean dontEscape(TagNode tagNode) {
96 String tagName = tagNode.getName();
97 return htmlCleaner.isUseCdataForScriptAndStyle() && ("script".equalsIgnoreCase(tagName) || "style".equalsIgnoreCase(tagName));
98 }
99
100 protected boolean isScriptOrStyle(TagNode tagNode) {
101 String tagName = tagNode.getName();
102 return "script".equalsIgnoreCase(tagName) || "style".equalsIgnoreCase(tagName);
103 }
104
105 protected void serializeOpenTag(TagNode tagNode, boolean newLine) throws IOException {
106 String tagName = tagNode.getName();
107 Map tagAtttributes = tagNode.getAttributes();
108 List tagChildren = tagNode.getChildren();
109
110 writer.write("<" + tagName);
111 Iterator it = tagAtttributes.keySet().iterator();
112 while (it.hasNext()) {
113 String attName = (String ) it.next();
114 String attValue = (String ) tagAtttributes.get(attName);
115
116 if ( htmlCleaner.isOmitXmlnsAttributes() && "xmlns".equals(attName) ) {
117 continue;
118 }
119
120 writer.write(" " + attName + "=\"" + escapeXml(attValue) + "\"");
121 }
122
123 if ( tagChildren.size() == 0 ) {
124 writer.write("/>");
125 if (newLine) {
126 writer.write("\n");
127 }
128 } else if (dontEscape(tagNode)) {
129 writer.write("><![CDATA[");
130 } else {
131 writer.write(">");
132 }
133 }
134
135 protected void serializeOpenTag(TagNode tagNode) throws IOException {
136 serializeOpenTag(tagNode, true);
137 }
138
139 protected void serializeEndTag(TagNode tagNode, boolean newLine) throws IOException {
140 String tagName = tagNode.getName();
141
142 if (dontEscape(tagNode)) {
143 writer.write("]]>");
144 }
145
146 writer.write( "</" + tagName + ">" );
147
148 if (newLine) {
149 writer.write("\n");
150 }
151 }
152
153 Writer getWriter() {
154 return writer;
155 }
156
157 protected void serializeEndTag(TagNode tagNode) throws IOException {
158 serializeEndTag(tagNode, true);
159 }
160
161
162 protected abstract void serialize(TagNode tagNode) throws IOException ;
163
164 } |
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