|
1
21 package oracle.toplink.essentials.internal.ejb.cmp3.xml.parser;
23
24 import org.xml.sax.Locator  ;
25 import org.xml.sax.SAXException ;
26 import org.xml.sax.Attributes ;
27 import org.xml.sax.ContentHandler ;
28
29 import java.net.URL ;
30 import java.net.MalformedURLException ;
31 import java.util.Vector ;
32 import javax.persistence.spi.PersistenceUnitTransactionType;
33
34 import oracle.toplink.essentials.ejb.cmp3.persistence.SEPersistenceUnitInfo;
35 import oracle.toplink.essentials.internal.ejb.cmp3.jdbc.base.DataSourceImpl;
36 import oracle.toplink.essentials.logging.AbstractSessionLog;
37
38 public class PersistenceContentHandler implements ContentHandler {
39 private static final String NAMESPACE_URI = "http://java.sun.com/xml/ns/persistence";
40 private static final String ELEMENT_PERSISTENCE_UNIT = "persistence-unit";
41 private static final String ELEMENT_PROVIDER = "provider";
42 private static final String ELEMENT_JTA_DATA_SOURCE = "jta-data-source";
43 private static final String ELEMENT_NON_JTA_DATA_SOURCE = "non-jta-data-source";
44 private static final String ELEMENT_MAPPING_FILE = "mapping-file";
45 private static final String ELEMENT_JAR_FILE = "jar-file";
46 private static final String ELEMENT_CLASS = "class";
47 private static final String ELEMENT_EXCLUDE_UNLISTED_CLASSES = "exclude-unlisted-classes";
48 private static final String ELEMENT_PROPERTY = "property";
49 private static final String ATTRIBUTE_NAME = "name";
50 private static final String ATTRIBUTE_VALUE = "value";
51 private static final String ATTRIBUTE_TRANSACTION_TYPE = "transaction-type";
52
53 private SEPersistenceUnitInfo persistenceUnitInfo;
54 private Vector <SEPersistenceUnitInfo> persistenceUnits;
55 private StringBuffer stringBuffer;
56 private boolean readCharacters = false;
57
58 public PersistenceContentHandler() {
59 super();
60 stringBuffer = new StringBuffer ();
61 persistenceUnits = new Vector ();
62 }
63
64 public Vector <SEPersistenceUnitInfo> getPersistenceUnits() {
65 return persistenceUnits;
66 }
67
68 public void setDocumentLocator(Locator locator) {
69 }
70
71 public void startDocument() throws SAXException {
72 }
73
74 public void endDocument() throws SAXException {
75 }
76
77 public void startPrefixMapping(String prefix, String uri) throws SAXException {
78 }
79
80 public void endPrefixMapping(String prefix) throws SAXException {
81 }
82
83 public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
84 if (NAMESPACE_URI.equals(namespaceURI)) {
85 if (ELEMENT_PERSISTENCE_UNIT.equals(localName)) {
86 persistenceUnitInfo = new SEPersistenceUnitInfo();
87 persistenceUnitInfo.setPersistenceUnitName(atts.getValue(ATTRIBUTE_NAME));
88 String transactionType = atts.getValue(ATTRIBUTE_TRANSACTION_TYPE);
89 if(transactionType != null) {
90 persistenceUnitInfo.setTransactionType(PersistenceUnitTransactionType.valueOf(transactionType));
91 }
92 return;
93 } else if (ELEMENT_PROPERTY.equals(localName)) {
94 String name = atts.getValue(ATTRIBUTE_NAME);
95 String value = atts.getValue(ATTRIBUTE_VALUE);
96 persistenceUnitInfo.getProperties().setProperty(name, value);
97 } else if (ELEMENT_PROVIDER.equals(localName)) {
98 readCharacters = true;
99 return;
100 } else if (ELEMENT_JTA_DATA_SOURCE.equals(localName)) {
101 readCharacters = true;
102 return;
103 } else if (ELEMENT_NON_JTA_DATA_SOURCE.equals(localName)) {
104 readCharacters = true;
105 return;
106 } else if (ELEMENT_MAPPING_FILE.equals(localName)) {
107 readCharacters = true;
108 return;
109 } else if (ELEMENT_JAR_FILE.equals(localName)) {
110 readCharacters = true;
111 return;
112 } else if (ELEMENT_EXCLUDE_UNLISTED_CLASSES.equals(localName)) {
113 readCharacters = true;
114 return;
115 } else if (ELEMENT_CLASS.equals(localName)) {
116 readCharacters = true;
117 return;
118 }
119 }
120 }
121
122 public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
123 String string = stringBuffer.toString().trim();
124 stringBuffer.delete(0, stringBuffer.length());
125 readCharacters = false;
126
127 if (NAMESPACE_URI.equals(namespaceURI)) {
128 if (ELEMENT_PROVIDER.equals(localName)) {
129 persistenceUnitInfo.setPersistenceProviderClassName(string);
130 return;
131 } else if (ELEMENT_JTA_DATA_SOURCE.equals(localName)) {
132 persistenceUnitInfo.setJtaDataSource(
133 new DataSourceImpl(string, null, null, null));
136 return;
137 } else if (ELEMENT_NON_JTA_DATA_SOURCE.equals(localName)) {
138 persistenceUnitInfo.setNonJtaDataSource(
139 new DataSourceImpl(string, null, null, null));
142 return;
143 } else if (ELEMENT_MAPPING_FILE.equals(localName)) {
144 persistenceUnitInfo.getMappingFileNames().add(string);
145 return;
146 } else if (ELEMENT_JAR_FILE.equals(localName)) {
147 URL url = null;
148 try{
149 url = new URL (string);
150 } catch (MalformedURLException exc){
151 try{
152 url = new URL ("file:///" + string);
153 } catch (MalformedURLException exception){
154 AbstractSessionLog.getLog().log(AbstractSessionLog.INFO, "jar_file_url_exception", exception);
155 }
156 }
157 persistenceUnitInfo.getJarFileUrls().add(url);
158 return;
159 } else if (ELEMENT_CLASS.equals(localName)) {
160 persistenceUnitInfo.getManagedClassNames().add(string);
161 return;
162 } else if (ELEMENT_EXCLUDE_UNLISTED_CLASSES.equals(localName)) {
163 if (string.equals("true") || string.equals("1")){
164 persistenceUnitInfo.setExcludeUnlistedClasses(true);
165 } else {
166 persistenceUnitInfo.setExcludeUnlistedClasses(false);
167 }
168 return;
169 } else if (ELEMENT_PERSISTENCE_UNIT.equals(localName)) {
170 if (persistenceUnitInfo != null){
171 persistenceUnits.add(persistenceUnitInfo);
172 persistenceUnitInfo = null;
173 }
174 }
175 }
176 }
177
178 public void characters(char[] ch, int start, int length) throws SAXException {
179 if (readCharacters) {
180 stringBuffer.append(ch, start, length);
181 }
182 }
183
184 public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
185 }
186
187 public void processingInstruction(String target, String data) throws SAXException {
188 }
189
190 public void skippedEntity(String name) throws SAXException {
191 }
192 }
193 |
Popular Tags |
Java API By Example, From Geeks To Geeks.