Source Code Cross Referenced for PersistenceXmlFileAnalyzer.java in  » J2EE » ow2-easybeans » org » ow2 » easybeans » persistence » xml » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » J2EE » ow2 easybeans » org.ow2.easybeans.persistence.xml 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * EasyBeans
003:         * Copyright (C) 2006 Bull S.A.S.
004:         * Contact: easybeans@ow2.org
005:         *
006:         * This library is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU Lesser General Public
008:         * License as published by the Free Software Foundation; either
009:         * version 2.1 of the License, or any later version.
010:         *
011:         * This library is distributed in the hope that it will be useful,
012:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         * Lesser General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU Lesser General Public
017:         * License along with this library; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
019:         * USA
020:         *
021:         * --------------------------------------------------------------------------
022:         * $Id:PersistenceXmlFileAnalyzer.java 1537 2007-07-08 15:31:22Z benoitf $
023:         * --------------------------------------------------------------------------
024:         */package org.ow2.easybeans.persistence.xml;
025:
026:        import java.net.URL;
027:
028:        import javax.persistence.spi.PersistenceProvider;
029:
030:        import org.ow2.easybeans.persistence.PersistenceUnitManager;
031:        import org.ow2.util.ee.deploy.api.archive.ArchiveException;
032:        import org.ow2.util.ee.deploy.api.archive.IArchive;
033:        import org.ow2.util.log.Log;
034:        import org.ow2.util.log.LogFactory;
035:
036:        /**
037:         * Class used to analyze a given archive (by analyzing the persistence.xml file
038:         * if any).
039:         * @author Florent Benoit
040:         */
041:        public final class PersistenceXmlFileAnalyzer {
042:
043:            /**
044:             * Directory where persistence.xml file should be.
045:             */
046:            private static final String DIRECTORY_PERSISTENCE_XML_FILE = "META-INF";
047:
048:            /**
049:             * Name of the persistence.xml file.
050:             */
051:            private static final String PERSISTENCE_XML_FILE = "persistence.xml";
052:
053:            /**
054:             * Logger.
055:             */
056:            private static Log logger = LogFactory
057:                    .getLog(PersistenceXmlFileAnalyzer.class);
058:
059:            /**
060:             * Utility class, no public constructor.
061:             */
062:            private PersistenceXmlFileAnalyzer() {
063:
064:            }
065:
066:            /**
067:             * Detects and analyze the META-INF/persistence.xml file.
068:             * @param archive the file to analyze (or directory) in order to find a
069:             *        persistence.xml file.
070:             * @param classLoader the classloader used to load the persistence provider
071:             *        class.
072:             * @return a persistence unit manager (which can manage the peristence
073:             *         contexts).
074:             * @throws PersistenceXmlFileAnalyzerException if detection or analyze
075:             *         fails.
076:             */
077:            public static PersistenceUnitManager analyzePersistenceXmlFile(
078:                    final IArchive archive, final ClassLoader classLoader)
079:                    throws PersistenceXmlFileAnalyzerException {
080:                URL persistenceXmlURL = null;
081:                try {
082:                    persistenceXmlURL = archive
083:                            .getResource(DIRECTORY_PERSISTENCE_XML_FILE + '/'
084:                                    + PERSISTENCE_XML_FILE);
085:                } catch (ArchiveException e) {
086:                    throw new PersistenceXmlFileAnalyzerException(
087:                            "Cannot check if entry '"
088:                                    + DIRECTORY_PERSISTENCE_XML_FILE + '/'
089:                                    + PERSISTENCE_XML_FILE
090:                                    + "' is present on the file '"
091:                                    + archive.getName() + "'.", e);
092:                }
093:
094:                // Now, do the parsing and fill the structure.
095:                JPersistenceUnitInfo[] persistenceUnitInfos = null;
096:                if (persistenceXmlURL != null) {
097:                    try {
098:                        persistenceUnitInfos = JPersistenceUnitInfoHelper
099:                                .getPersistenceUnitInfo(persistenceXmlURL);
100:                    } catch (JPersistenceUnitInfoException e) {
101:                        throw new PersistenceXmlFileAnalyzerException(
102:                                "Cannot parse the URL '" + persistenceXmlURL
103:                                        + "'.", e);
104:                    }
105:
106:                    for (JPersistenceUnitInfo persistenceUnitInfo : persistenceUnitInfos) {
107:                        try {
108:                            // sets the archive
109:                            persistenceUnitInfo.addJarFile(archive.getURL());
110:
111:                            // Set the root url
112:                            persistenceUnitInfo
113:                                    .setPersistenceUnitRootUrl(archive.getURL());
114:                        } catch (ArchiveException e) {
115:                            throw new PersistenceXmlFileAnalyzerException(
116:                                    "Cannot get the URL on the jar file '"
117:                                            + archive.getName() + "'.", e);
118:                        }
119:
120:                        // sets the classloader
121:                        persistenceUnitInfo.setClassLoader(classLoader);
122:
123:                        if (persistenceUnitInfo
124:                                .getPersistenceProviderClassName() == null) {
125:                            throw new PersistenceXmlFileAnalyzerException(
126:                                    "No Persistence provider has been set");
127:                        }
128:
129:                        // instantiate persistence provider
130:                        Class persistenceProviderClass;
131:                        try {
132:                            ClassLoader ctxLoader = Thread.currentThread()
133:                                    .getContextClassLoader();
134:                            persistenceProviderClass = ctxLoader
135:                                    .loadClass(persistenceUnitInfo
136:                                            .getPersistenceProviderClassName());
137:                        } catch (ClassNotFoundException e) {
138:                            throw new PersistenceXmlFileAnalyzerException(
139:                                    "Cannot load the persistence provider class '"
140:                                            + persistenceUnitInfo
141:                                                    .getPersistenceProviderClassName()
142:                                            + "'.");
143:                        }
144:                        PersistenceProvider persistenceProvider;
145:                        try {
146:                            persistenceProvider = (PersistenceProvider) persistenceProviderClass
147:                                    .newInstance();
148:                        } catch (InstantiationException e) {
149:                            throw new PersistenceXmlFileAnalyzerException(
150:                                    "Cannot instantiate the persistence provider class '"
151:                                            + persistenceUnitInfo
152:                                                    .getPersistenceProviderClassName()
153:                                            + "'.", e);
154:                        } catch (IllegalAccessException e) {
155:                            throw new PersistenceXmlFileAnalyzerException(
156:                                    "Cannot instantiate the persistence provider class '"
157:                                            + persistenceUnitInfo
158:                                                    .getPersistenceProviderClassName()
159:                                            + "'.", e);
160:                        }
161:
162:                        // Set persistence provider
163:                        persistenceUnitInfo
164:                                .setPersistenceProvider(persistenceProvider);
165:
166:                    }
167:
168:                    // create persistence unit manager
169:                    return new PersistenceUnitManager(persistenceUnitInfos);
170:                }
171:                // nothing found, return nothing(null)
172:                return null;
173:            }
174:
175:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.