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1 package org.hibernate.ejb.packaging;
2
3 import java.io.IOException  ;
4 import java.io.InputStream ;
5 import java.net.URL ;
6 import javax.xml.parsers.DocumentBuilder ;
7 import javax.xml.parsers.DocumentBuilderFactory ;
8
9 import org.apache.commons.logging.Log;
10 import org.apache.commons.logging.LogFactory;
11 import org.w3c.dom.Document ;
12 import org.w3c.dom.Element ;
13 import org.w3c.dom.Node ;
14 import org.w3c.dom.NodeList ;
15 import org.xml.sax.InputSource ;
16
17
23 public final class PersistenceXmlLoader {
24 private static Log log = LogFactory.getLog( PersistenceXmlLoader.class );
25
26 private PersistenceXmlLoader() {
27 }
28
29 private static Document loadURL(URL configURL) throws Exception {
30 InputStream is = configURL != null ? configURL.openStream() : null;
31 if ( is == null ) {
32 throw new IOException ( "Failed to obtain InputStream from url: " + configURL );
33 }
34
35 DocumentBuilderFactory docBuilderFactory = null;
36 docBuilderFactory = DocumentBuilderFactory.newInstance();
37 docBuilderFactory.setValidating( false );
38 InputSource source = new InputSource ( is );
39 DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
42 Document doc = docBuilder.parse( source );
45 return doc;
46 }
47
48 public static PersistenceMetadata deploy(URL url) throws Exception {
49 PersistenceMetadata metadata = new PersistenceMetadata();
50 Document doc = loadURL( url );
51 Element top = doc.getDocumentElement();
52 NodeList children = top.getChildNodes();
53 for ( int i = 0 ; i < children.getLength() ; i++ ) {
54 if ( children.item( i ).getNodeType() == Node.ELEMENT_NODE ) {
55 Element element = (Element ) children.item( i );
56 String tag = element.getTagName();
57 if ( tag.equals( "name" ) ) {
58 metadata.setName( XmlHelper.getElementContent( element ) );
59 }
60 else if ( tag.equals( "non-jta-data-source" ) ) {
61 metadata.setDatasource( XmlHelper.getElementContent( element ) );
62 }
63 else if ( tag.equals( "jta-data-source" ) ) {
64 metadata.setJtaDatasource( XmlHelper.getElementContent( element ) );
65 }
66 else if ( tag.equals( "provider" ) ) {
67 metadata.setProvider( XmlHelper.getElementContent( element ) );
68 }
69 else if ( tag.equals( "class" ) ) {
70 metadata.getClasses().add( XmlHelper.getElementContent( element ) );
71 }
72 else if ( tag.equals( "mapping-file" ) ) {
73 metadata.getMappingFiles().add( XmlHelper.getElementContent( element ) );
74 }
75 else if ( tag.equals( "jar-file" ) ) {
76 metadata.getJarFiles().add( XmlHelper.getElementContent( element ) );
77 }
78 else if ( tag.equals( "properties" ) ) {
79 NodeList props = element.getChildNodes();
80 for ( int j = 0 ; j < props.getLength() ; j++ ) {
81 if ( props.item( j ).getNodeType() == Node.ELEMENT_NODE ) {
82 Element propElement = (Element ) props.item( j );
83 if ( !"property".equals( propElement.getTagName() ) ) continue;
84 String propName = propElement.getAttribute( "name" ).trim();
85 String propValue = propElement.getAttribute( "value" ).trim();
86 metadata.getProps().put( propName, propValue );
87 }
88 }
89
90 }
91 }
92 }
93 return metadata;
94 }
95
96 }
97 |
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