[hibernate-commits] Hibernate SVN: r10454 - in trunk/HibernateExt: ejb/src/java/org/hibernate/ejb ejb/src/java/org/hibernate/ejb/util metadata/src/java/org/hibernate/cfg

Author: epbernard Date: 2006-09-05 20:03:49 -0400 (Tue, 05 Sep 2006) New Revision: 10454 Added: trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3ConfigurationObjectFactory.java trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/util/NamingHelper.java Modified: trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3Configuration.java trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/HibernatePersistence.java trunk/HibernateExt/metadata/src/java/org/hibernate/cfg/AnnotationConfiguration.java Log: EJB-160 make Ejb3Configuration and AnnotationConfiguration serializable and allow JNDI reference Modified: trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3Configuration.java =================================================================== --- trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3Configuration.java 2006-09-05 20:38:24 UTC (rev 10453) +++ trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3Configuration.java 2006-09-06 00:03:49 UTC (rev 10454) @@ -2,10 +2,13 @@ package org.hibernate.ejb; import java.io.BufferedInputStream; +import java.io.ByteArrayOutputStream; import java.io.DataInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; +import java.io.ObjectOutput; +import java.io.ObjectOutputStream; import java.io.Serializable; import java.net.URL; import java.util.ArrayList; @@ -19,6 +22,10 @@ import java.util.Properties; import java.util.Set; import java.util.StringTokenizer; +import javax.naming.BinaryRefAddr; +import javax.naming.NamingException; +import javax.naming.Reference; +import javax.naming.Referenceable; import javax.persistence.Embeddable; import javax.persistence.Entity; import javax.persistence.EntityManagerFactory; @@ -39,8 +46,8 @@ import org.hibernate.HibernateException; import org.hibernate.Interceptor; import org.hibernate.MappingException; +import org.hibernate.MappingNotFoundException; import org.hibernate.SessionFactory; -import org.hibernate.MappingNotFoundException; import org.hibernate.cfg.AnnotationConfiguration; import org.hibernate.cfg.Configuration; import org.hibernate.cfg.Environment; @@ -55,6 +62,7 @@ import org.hibernate.ejb.transaction.JoinableCMTTransactionFactory; import org.hibernate.ejb.util.ConfigurationHelper; import org.hibernate.ejb.util.LogHelper; +import org.hibernate.ejb.util.NamingHelper; import org.hibernate.engine.FilterDefinition; import org.hibernate.event.EventListeners; import org.hibernate.mapping.AuxiliaryDatabaseObject; @@ -72,9 +80,23 @@ import org.xml.sax.SAXException; /** + * Allow a fine tuned configuration of an EJB 3.0 EntityManagerFactory + * + * A Ejb3Configuration object is only guaranteed to create one EntityManagerFactory. + * Multiple usage of #buildEntityManagerFactory() is not guaranteed. + * + * After #buildEntityManagerFactory() has been called, you no longer can change the configuration + * state (no class adding, no property change etc) + * + * When serialized / deserialized or retrieved from the JNDI, you no longer can change the + * configuration state (no class adding, no property change etc) + * + * Putting the configuration in the JNDI is an expensive operation that requires a partial + * serialization + * * @author Emmanuel Bernard */ -public class Ejb3Configuration implements Serializable { +public class Ejb3Configuration implements Serializable, Referenceable { private static final String IMPLEMENTATION_NAME = HibernatePersistence.class.getName(); private static final String META_INF_ORM_XML = "META-INF/orm.xml"; private static Log log = LogFactory.getLog( Ejb3Configuration.class ); @@ -85,10 +107,10 @@ private AnnotationConfiguration cfg; private SettingsFactory settingsFactory; - private EventListenerConfigurator listenerConfigurator; + private transient EventListenerConfigurator listenerConfigurator; private PersistenceUnitTransactionType transactionType; private boolean discardOnClose; - private ClassLoader overridenClassLoader; + private transient ClassLoader overridenClassLoader; public Ejb3Configuration() { @@ -660,12 +682,13 @@ thread.setContextClassLoader( overridenClassLoader ); } try { + NamingHelper.bind(this); return new EntityManagerFactoryImpl( cfg.buildSessionFactory(), transactionType, discardOnClose ); - } + } catch (HibernateException e) { throw new PersistenceException( e ); } @@ -676,6 +699,32 @@ } } + public Reference getReference() throws NamingException { + log.debug("Returning a Reference to the Ejb3Configuration"); + ByteArrayOutputStream stream = new ByteArrayOutputStream(); + ObjectOutput out = null; + byte[] serialized; + try { + out = new ObjectOutputStream( stream ); + out.writeObject( this ); + out.close(); + serialized = stream.toByteArray(); + stream.close(); + } + catch (IOException e) { + NamingException namingException = new NamingException( "Unable to serialize Ejb3Configuration" ); + namingException.setRootCause( e ); + throw namingException; + } + + return new Reference( + Ejb3Configuration.class.getName(), + new BinaryRefAddr("object", serialized ), + Ejb3ConfigurationObjectFactory.class.getName(), + null + ); + } + /** * create a factory from a canonical workingVars map and the overriden properties * Added: trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3ConfigurationObjectFactory.java =================================================================== --- trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3ConfigurationObjectFactory.java 2006-09-05 20:38:24 UTC (rev 10453) +++ trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/Ejb3ConfigurationObjectFactory.java 2006-09-06 00:03:49 UTC (rev 10454) @@ -0,0 +1,27 @@ +//$Id: $ +package org.hibernate.ejb; + +import java.io.ByteArrayInputStream; +import java.io.ObjectInputStream; +import java.util.Hashtable; +import javax.naming.Context; +import javax.naming.Name; +import javax.naming.Reference; +import javax.naming.spi.ObjectFactory; + +/** + * @author Emmanuel Bernard + */ +public class Ejb3ConfigurationObjectFactory implements ObjectFactory { + public Object getObjectInstance( + Object reference, Name name, Context nameCtx, Hashtable<?, ?> environment + ) throws Exception { + byte[] serialized = (byte[]) ( (Reference) reference ).get(0).getContent(); + ByteArrayInputStream byteIn = new ByteArrayInputStream( serialized ); + ObjectInputStream in = new ObjectInputStream( byteIn ); + Ejb3Configuration cfg = (Ejb3Configuration) in.readObject(); + in.close(); + byteIn.close(); + return cfg; + } +} Modified: trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/HibernatePersistence.java =================================================================== --- trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/HibernatePersistence.java 2006-09-05 20:38:24 UTC (rev 10453) +++ trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/HibernatePersistence.java 2006-09-06 00:03:49 UTC (rev 10454) @@ -34,21 +34,6 @@ */ public static final String AUTODETECTION = "hibernate.archive.autodetection"; /** - * List of classes names - * Internal use only - */ - public static final String CLASS_NAMES = "hibernate.ejb.classes"; - /** - * List of annotated packages - * Internal use only - */ - public static final String PACKAGE_NAMES = "hibernate.ejb.packages"; - /** - * List of classes names - * Internal use only - */ - public static final String XML_FILE_NAMES = "hibernate.ejb.xml_files"; - /** * cfg.xml configuration file used */ public static final String CFG_FILE = "hibernate.ejb.cfgfile"; @@ -86,12 +71,33 @@ * The EJB3 compliant and default choice is false */ public static final String DISCARD_PC_ON_CLOSE = "hibernate.ejb.discard_pc_on_close"; + /** + * Consider this as experimental + * It is not recommended to set up this property, the configuration is stored + * in the JNDI in a serialized form + */ + public static final String CONFIGURATION_JNDI_NAME = "hibernate.ejb.configuration_jndi_name"; //The following properties are for Internal use only /** * link to the alternative Hibernate configuration file * Internal use only */ + /** + * List of classes names + * Internal use only + */ + public static final String CLASS_NAMES = "hibernate.ejb.classes"; + /** + * List of annotated packages + * Internal use only + */ + public static final String PACKAGE_NAMES = "hibernate.ejb.packages"; + /** + * List of classes names + * Internal use only + */ + public static final String XML_FILE_NAMES = "hibernate.ejb.xml_files"; public static final String HBXML_FILES = "hibernate.hbmxml.files"; public static final String LOADED_CLASSES = "hibernate.ejb.loaded.classes"; public static final String JACC_CONTEXT_ID = "hibernate.jacc.ctx.id"; Added: trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/util/NamingHelper.java =================================================================== --- trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/util/NamingHelper.java 2006-09-05 20:38:24 UTC (rev 10453) +++ trunk/HibernateExt/ejb/src/java/org/hibernate/ejb/util/NamingHelper.java 2006-09-06 00:03:49 UTC (rev 10454) @@ -0,0 +1,74 @@ +//$Id: $ +package org.hibernate.ejb.util; + +import javax.naming.Context; +import javax.naming.InvalidNameException; +import javax.naming.NamingException; +import javax.naming.event.EventContext; +import javax.naming.event.NamespaceChangeListener; +import javax.naming.event.NamingEvent; +import javax.naming.event.NamingExceptionEvent; +import javax.naming.event.NamingListener; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.hibernate.ejb.Ejb3Configuration; +import org.hibernate.ejb.HibernatePersistence; + +/** + * @author Emmanuel Bernard + */ +public class NamingHelper { + private NamingHelper() {}; + + private static Log log = LogFactory.getLog( NamingHelper.class ); + + /** bind the configuration to the JNDI */ + public static void bind(Ejb3Configuration cfg) { + String name = cfg.getHibernateConfiguration().getProperty( HibernatePersistence.CONFIGURATION_JNDI_NAME ); + if ( name == null ) { + log.debug( "Not Ejb3Configuration to JNDI, no JNDI name configured" ); + } + else { + log.info( "Ejb3Configuration name: " + name ); + + try { + Context ctx = org.hibernate.util.NamingHelper.getInitialContext( cfg.getProperties() ); + org.hibernate.util.NamingHelper.bind( ctx, name, cfg ); + log.info( "Bound Ejb3Configuration to JNDI name: " + name ); + ( (EventContext) ctx ).addNamingListener( name, EventContext.OBJECT_SCOPE, LISTENER ); + } + catch (InvalidNameException ine) { + log.error( "Invalid JNDI name: " + name, ine ); + } + catch (NamingException ne) { + log.warn( "Could not bind Ejb3Configuration to JNDI", ne ); + } + catch (ClassCastException cce) { + log.warn( "InitialContext did not implement EventContext" ); + } + } + } + + private static final NamingListener LISTENER = new NamespaceChangeListener() { + public void objectAdded(NamingEvent evt) { + log.debug( "An Ejb3Configuration was successfully bound to name: " + evt.getNewBinding().getName() ); + } + + public void objectRemoved(NamingEvent evt) { + String name = evt.getOldBinding().getName(); + log.info( "An Ejb3Configuration was unbound from name: " + name ); + } + + public void objectRenamed(NamingEvent evt) { + String name = evt.getOldBinding().getName(); + log.info( "An Ejb3Configuration was renamed from name: " + name ); + } + + public void namingExceptionThrown(NamingExceptionEvent evt) { + log.warn( "Naming exception occurred accessing Ejb3Configuration: " + evt.getException() ); + } + }; + + +} Modified: trunk/HibernateExt/metadata/src/java/org/hibernate/cfg/AnnotationConfiguration.java =================================================================== --- trunk/HibernateExt/metadata/src/java/org/hibernate/cfg/AnnotationConfiguration.java 2006-09-05 20:38:24 UTC (rev 10453) +++ trunk/HibernateExt/metadata/src/java/org/hibernate/cfg/AnnotationConfiguration.java 2006-09-06 00:03:49 UTC (rev 10454) @@ -80,7 +80,7 @@ private List<Document> hbmDocuments; //user ordering matters, hence the list private String precedence = null; private boolean inSecondPass = false; - private ReflectionManager reflectionManager; + private transient ReflectionManager reflectionManager; private boolean isDefaultProcessed = false; public AnnotationConfiguration() {