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1
23
24 package org.hammurapi;
25
26 import java.io.File  ;
27 import java.io.FileInputStream ;
28 import java.io.FileNotFoundException ;
29 import java.io.IOException ;
30 import java.io.InputStream ;
31 import java.net.MalformedURLException ;
32 import java.net.URL ;
33
34 import javax.xml.parsers.DocumentBuilderFactory ;
35 import javax.xml.parsers.ParserConfigurationException ;
36 import javax.xml.transform.TransformerException ;
37
38 import org.apache.xpath.XPathAPI;
39 import org.w3c.dom.Document ;
40 import org.w3c.dom.Element ;
41 import org.w3c.dom.traversal.NodeIterator;
42 import org.xml.sax.SAXException ;
43
44 import com.pavelvlasov.config.ConfigurationException;
45
46
51 public class DomInspectorSource implements InspectorSource {
52 private Element holder;
53 private String source;
54
55
56 public DomInspectorSource(Element holder, String source) {
57 this.holder=holder;
58 this.source=source;
59 }
60
61 public DomInspectorSource(InputStream in, String source) throws HammurapiException {
62 load(in);
63 this.source=source;
64 }
65
66 public DomInspectorSource(File f, String source) throws HammurapiException {
67 try {
68 load(new FileInputStream (f));
69 } catch (FileNotFoundException e) {
70 throw new HammurapiException("File not found: "+f.getAbsolutePath(), e);
71 }
72 this.source=source;
73 }
74
75 private void load(InputStream in) throws HammurapiException {
76 try {
77 Document document=DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(in);
78 holder=document.getDocumentElement();
79 } catch (ParserConfigurationException e) {
80 throw new HammurapiException(e.toString(), e);
81 } catch (SAXException e) {
82 throw new HammurapiException(e.toString(), e);
83 } catch (IOException e) {
84 throw new HammurapiException(e.toString(), e);
85 }
86 }
87
88 public void loadInspectors(InspectorSet inspectorSet) throws HammurapiException {
89 if (holder.hasAttribute("base")) {
90 try {
91 URL baseURL=new URL (holder.getAttribute("base"));
92 DomInspectorSource base=new DomInspectorSource(baseURL.openStream(), "URL: "+baseURL);
93 base.loadInspectors(inspectorSet);
94 } catch (MalformedURLException e) {
95 throw new HammurapiException("Malformed base URL: "+e, e);
96 } catch (IOException e) {
97 throw new HammurapiException(e.toString(), e);
98 }
99 }
100
101 try {
102 NodeIterator inspectorsIterator=XPathAPI.selectNodeIterator(holder, "inspector-descriptor");
103 Element inspectorElement;
104 while ((inspectorElement=(Element ) inspectorsIterator.nextNode())!=null) {
105 inspectorSet.addDescriptor(new DomInspectorDescriptor(inspectorElement));
106 }
107 } catch (TransformerException e) {
108 new HammurapiException(e);
109 } catch (ConfigurationException e) {
110 new HammurapiException(e);
111 }
112
113 inspectorSet.addInspectorSourceInfo(new InspectorSourceInfo(holder.getAttribute("name"), source, holder.getAttribute("revision")));
114 }
115 }
116 |
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