|
1
23 package com.sun.enterprise.diagnostics.util;
24
25 import java.io.File  ;
26 import java.io.FileInputStream ;
27 import java.io.FileWriter ;
28 import java.io.IOException ;
29 import java.util.List ;
30 import java.util.ArrayList ;
31
32 import javax.xml.parsers.DocumentBuilderFactory ;
33 import javax.xml.parsers.DocumentBuilder ;
34 import javax.xml.parsers.ParserConfigurationException ;
35 import javax.xml.transform.Transformer ;
36 import javax.xml.transform.TransformerFactory ;
37 import javax.xml.transform.TransformerException ;
38 import javax.xml.transform.TransformerConfigurationException ;
39 import javax.xml.transform.dom.DOMSource ;
40 import javax.xml.transform.stream.StreamResult ;
41 import java.util.logging.Level ;
42 import java.util.logging.Logger ;
43
44 import org.w3c.dom.*;
45 import org.xml.sax.SAXException ;
46 import org.xml.sax.helpers.DefaultHandler ;
47 import org.xml.sax.InputSource ;
48
49 import com.sun.logging.LogDomains;
50
51
55 public class XmlUtils {
56
57
64 public static Document loadXML(String srcXmlFile, String dtdFileName)
65 throws SAXException , IOException , ParserConfigurationException {
66 Document doc = null;
67 FileInputStream in = null;
68
69 in = new FileInputStream (srcXmlFile);
70 DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().
71 newDocumentBuilder();
72 docBuilder.setEntityResolver(new NOOPHandler(dtdFileName));
73 doc = docBuilder.parse( in );
74 if(in!=null)
75 in.close();
76 return doc;
77 }
78
79 public static void getAttributes(Node element, String srchStr,
80 List list) {
81
82 if(element != null && srchStr != null) {
83 if(list == null)
84 list = new ArrayList (5);
85 NodeList children = element.getChildNodes();
86 int noOfChildren = children.getLength();
87
88 for (int i = 0; i < noOfChildren; i++) {
89 Node child = children.item(i);
90 String childName = child.getLocalName();
91 NamedNodeMap attrs = null;
92 attrs = child.getAttributes();
93 if (attrs != null) {
94 for (int j=0; j<attrs.getLength(); j++) {
95 Attr attr = (Attr)attrs.item(j);
96 if (attr.getName().toLowerCase().indexOf(srchStr) != -1) {
97 String attrName =getParentNodeName(child);
98 list.add( attrName + File.separator + attr);
99 }
100 } }
103 getAttributes(child,srchStr,list);
104 }
105 }
106 }
107
108 private static String getParentNodeName(Node child) {
109 if(child != null) {
110 String name = child.getNodeName() ;
111 Node parent = child.getParentNode();
113 if(parent != null && (parent.getNodeType() == Node.ELEMENT_NODE))
114 name = getParentNodeName(parent) + File.separator+ name ;
115 NamedNodeMap attrs = child.getAttributes();
116 if (attrs != null) {
117 String nameAttribute = null;
118 for (int j=0; j<attrs.getLength(); j++) {
119 Attr attr = (Attr)attrs.item(j);
120 if(attr.getName().toLowerCase().indexOf("name") != -1) {
121 nameAttribute = attr.getValue();
122 continue;
123 }
124 }
125 if (nameAttribute != null)
126 name = name + "=" + nameAttribute ;
127 }
128 return name;
129 }
130 return "";
131 }
132
140 public static void attrSearchReplace(Document doc, String srchStr,
141 String rplStr){
142 Node m_root = null;
143 Node child = null;
144 m_root = doc.getDocumentElement();
145 child = m_root.getFirstChild();
146 while (child != null) {
147 NamedNodeMap attrs = null;
148 attrs = child.getAttributes();
149 if (attrs != null)
150 for (int j=0; j<attrs.getLength(); j++) {
151 Attr attr = (Attr)attrs.item(j);
152 if (attr.getName().toLowerCase().indexOf(srchStr) != -1)
153 attr.setValue(rplStr);
154 }
155 child = child.getNextSibling();
156 }
157 }
158
159
160
168 public static void attrSearchReplace(Node element, String srchStr,
169 String replaceString) {
170 if (element != null) {
171 NodeList children = element.getChildNodes();
172 int noOfChildren = children.getLength();
173
174 for (int i = 0; i < noOfChildren; i++) {
175 Node child = children.item(i);
176
177 NamedNodeMap attrs = null;
178 attrs = child.getAttributes();
179 if (attrs != null) {
180 for (int j=0; j<attrs.getLength(); j++) {
181 Attr attr = (Attr)attrs.item(j);
182 if (attr.getName().toLowerCase().indexOf(srchStr) != -1)
183 attr.setValue(replaceString);
184 } }
187 attrSearchReplace(child,srchStr,replaceString);
188 } } }
191
192
193
200 public static void copyXMLFile(Document srcDoc, String destFile)
201 throws IOException , TransformerConfigurationException , TransformerException {
202 TransformerFactory tFactory =
204 TransformerFactory.newInstance();
205 Transformer transformer = tFactory.newTransformer();
206
207 DOMSource source = new DOMSource (srcDoc);
208 File destFileObj = new File (destFile);
209 if(!destFileObj.getParentFile().exists())
210 destFileObj.getParentFile().mkdirs();
211 FileWriter destFileWriter = new FileWriter (destFile);
212 StreamResult result = new StreamResult (destFileWriter);
213 transformer.transform(source, result);
214 }
215 }
216
217 class NOOPHandler extends DefaultHandler {
218
219 static String _dtdFileName;
220 private static Logger logger =
221 LogDomains.getLogger(LogDomains.ADMIN_LOGGER);
222 NOOPHandler(String dtdFileName) {
223 super();
224 _dtdFileName = dtdFileName;
225 }
228
229 public InputSource resolveEntity(String publicId,
230 String systemId) throws SAXException
231 {
232 InputSource is = null;
233 try {
234 is = new InputSource (new FileInputStream (_dtdFileName));
235 } catch(Exception e) {
236 throw new SAXException ("cannot resolve dtd", e);
237 }
238 return is;
239 }
240
241 }
242
243
244 |
Popular Tags |
Java API By Example, From Geeks To Geeks.