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1
52
53 package freemarker.ext.xml;
54
55 import java.io.StringWriter  ;
56 import java.util.Iterator ;
57 import java.util.List ;
58
59 import freemarker.template.TemplateModelException;
60
61 import org.dom4j.Attribute;
62 import org.dom4j.Branch;
63 import org.dom4j.Document;
64 import org.dom4j.DocumentType;
65 import org.dom4j.Element;
66 import org.dom4j.Node;
67 import org.dom4j.ProcessingInstruction;
68 import org.dom4j.tree.DefaultAttribute;
69 import org.jaxen.Context;
70 import org.jaxen.NamespaceContext;
71 import org.jaxen.dom4j.Dom4jXPath;
72
73
77 class Dom4jNavigator extends Navigator {
78
79 Dom4jNavigator() {
80 }
81
82 void getAsString(Object node, StringWriter sw) {
83 sw.getBuffer().append(((Node)node).asXML());
84 }
85
86 void getChildren(Object node, String localName, String namespaceUri, List result) {
87 if(node instanceof Element) {
88 Element e = (Element)node;
89 if(localName == null) {
90 result.addAll(e.elements());
91 }
92 else {
93 result.addAll(e.elements(e.getQName().getDocumentFactory().createQName(localName, "", namespaceUri)));
94 }
95 }
96 else if(node instanceof Document) {
97 Element root = ((Document)node).getRootElement();
98 if(localName == null || (equal(root.getName(), localName) && equal(root.getNamespaceURI(), namespaceUri))) {
99 result.add(root);
100 }
101 }
102 }
103
104 void getAttributes(Object node, String localName, String namespaceUri, List result) {
105 if(node instanceof Element) {
106 Element e = (Element)node;
107 if(localName == null) {
108 result.addAll(e.attributes());
109 }
110 else {
111 Attribute attr = e.attribute(e.getQName().getDocumentFactory().createQName(localName, "", namespaceUri));
112 if(attr != null) {
113 result.add(attr);
114 }
115 }
116 }
117 else if (node instanceof ProcessingInstruction) {
118 ProcessingInstruction pi = (ProcessingInstruction)node;
119 if ("target".equals(localName)) {
120 result.add(new DefaultAttribute("target", pi.getTarget()));
121 }
122 else if ("data".equals(localName)) {
123 result.add(new DefaultAttribute("data", pi.getText()));
124 }
125 else {
126 result.add(new DefaultAttribute(localName, pi.getValue(localName)));
127 }
128 } else if (node instanceof DocumentType) {
129 DocumentType doctype = (DocumentType)node;
130 if ("publicId".equals(localName)) {
131 result.add(new DefaultAttribute("publicId", doctype.getPublicID()));
132 }
133 else if ("systemId".equals(localName)) {
134 result.add(new DefaultAttribute("systemId", doctype.getSystemID()));
135 }
136 else if ("elementName".equals(localName)) {
137 result.add(new DefaultAttribute("elementName", doctype.getElementName()));
138 }
139 }
140 }
141
142 void getDescendants(Object node, List result) {
143 if(node instanceof Branch) {
144 getDescendants((Branch)node, result);
145 }
146 }
147
148 private void getDescendants(Branch node, List result) {
149 List content = node.content();
150 for (Iterator iter = content.iterator(); iter.hasNext();) {
151 Node subnode = (Node) iter.next();
152 if(subnode instanceof Element) {
153 result.add(subnode);
154 getDescendants(subnode, result);
155 }
156 }
157 }
158
159 Object getParent(Object node) {
160 return ((Node)node).getParent();
161 }
162
163 Object getDocument(Object node) {
164 return ((Node)node).getDocument();
165 }
166
167 Object getDocumentType(Object node) {
168 return
169 node instanceof Document
170 ? ((Document)node).getDocType()
171 : null;
172 }
173
174 void getContent(Object node, List result) {
175 if(node instanceof Branch) {
176 result.addAll(((Branch)node).content());
177 }
178 }
179
180 String getText(Object node) {
181 return ((Node)node).getText();
182 }
183
184 String getLocalName(Object node) {
185 return ((Node)node).getName();
186 }
187
188 String getNamespacePrefix(Object node) {
189 if(node instanceof Element) {
190 return ((Element)node).getNamespacePrefix();
191 }
192 if(node instanceof Attribute) {
193 return ((Attribute)node).getNamespacePrefix();
194 }
195 return null;
196 }
197
198 String getNamespaceUri(Object node) {
199 if(node instanceof Element) {
200 return ((Element)node).getNamespaceURI();
201 }
202 if(node instanceof Attribute) {
203 return ((Attribute)node).getNamespaceURI();
204 }
205 return null;
206 }
207
208 String getType(Object node) {
209 switch(((Node)node).getNodeType()) {
210 case Node.ATTRIBUTE_NODE: {
211 return "attribute";
212 }
213 case Node.CDATA_SECTION_NODE: {
214 return "cdata";
215 }
216 case Node.COMMENT_NODE: {
217 return "comment";
218 }
219 case Node.DOCUMENT_NODE: {
220 return "document";
221 }
222 case Node.DOCUMENT_TYPE_NODE: {
223 return "documentType";
224 }
225 case Node.ELEMENT_NODE: {
226 return "element";
227 }
228 case Node.ENTITY_REFERENCE_NODE: {
229 return "entityReference";
230 }
231 case Node.NAMESPACE_NODE: {
232 return "namespace";
233 }
234 case Node.PROCESSING_INSTRUCTION_NODE: {
235 return "processingInstruction";
236 }
237 case Node.TEXT_NODE: {
238 return "text";
239 }
240 }
241 return "unknown";
242 }
243
244 XPathEx createXPathEx(String xpathString) throws TemplateModelException
245 {
246 try {
247 return new Dom4jXPathEx(xpathString);
248 }
249 catch(Exception e) {
250 throw new TemplateModelException(e);
251 }
252 }
253
254 private static final class Dom4jXPathEx
255 extends
256 Dom4jXPath
257 implements
258 XPathEx
259 {
260 Dom4jXPathEx(String path)
261 throws
262 Exception
263 {
264 super(path);
265 }
266
267 public List selectNodes(Object object, NamespaceContext namespaces)
268 throws
269 TemplateModelException
270 {
271 Context context = getContext(object);
272 context.getContextSupport().setNamespaceContext(namespaces);
273 try {
274 return selectNodesForContext(context);
275 }
276 catch(Exception e) {
277 throw new TemplateModelException(e);
278 }
279 }
280 }
281 }
282 |
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