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package com.sun.enterprise.server;
import com.sun.enterprise.deployment.*;
import com.sun.enterprise.loader.InstrumentableClassLoader;
import com.sun.logging.LogDomains;
import javax.persistence.EntityManagerFactory;
import javax.persistence.spi.PersistenceProvider;
import javax.persistence.spi.PersistenceUnitInfo;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.*;
/**
* {@inheritDoc}
*
* @author Sanjeeb.Sahoo@Sun.COM
*/
public class PersistenceUnitLoaderImpl implements PersistenceUnitLoader {
/**
* logger to log loader messages
*/
private static Logger logger = LogDomains.getLogger(
LogDomains.LOADER_LOGGER);
private String applicationLocation;
private InstrumentableClassLoader classLoader;
private Application application;
private static Map<String, String> integrationProperties;
/**
* {@inheritDoc}
*/
public void load(ApplicationInfo appInfo) {
application = appInfo.getApplication();
applicationLocation = appInfo.getApplicationLocation();
classLoader = appInfo.getClassLoader();
if(logger.isLoggable(Level.FINE)) {
logger.fine("Loading persistence units for application: " +
applicationLocation);
}
for(PersistenceUnitDescriptor pu : appInfo.getReferencedPUs()) {
load(pu);
}
if(logger.isLoggable(Level.FINE)) {
logger.fine("Finished loading persistence units for application: " +
applicationLocation);
}
}
/**
* {@inheritDoc}
*/
public void unload(ApplicationInfo appInfo) {
application = appInfo.getApplication();
applicationLocation = appInfo.getApplicationLocation();
classLoader = appInfo.getClassLoader();
final boolean fineMsgLoggable = logger.isLoggable(Level.FINE);
if(fineMsgLoggable) {
logger.fine("Unloading persistence units for application: " + // NOI18N
applicationLocation);
}
closeEMFs(appInfo.getEntityManagerFactories());
if(fineMsgLoggable) {
logger.fine("Finished unloading persistence units for application: " + // NOI18N
applicationLocation);
}
}
/**
* Loads an individual PersistenceUnitDescriptor and registers the
* EntityManagerFactory in appropriate DOL structure.
*
* @param pud PersistenceUnitDescriptor to be loaded.
*/
private void load(PersistenceUnitDescriptor pud) {
if(logger.isLoggable(Level.FINE)) {
logger.fine("loading pud " + pud.getPuRoot()); // NOI18N
}
PersistenceUnitInfo pInfo = new PersistenceUnitInfoImpl(
pud,
applicationLocation,
classLoader);
if(logger.isLoggable(Level.FINE)) {
logger.fine("PersistenceInfo for this pud is :\n" + pInfo); // NOI18N
}
PersistenceProvider provider;
try {
// See we use application CL as opposed to system CL to load
// provider. This allows user to get hold of provider specific
// implementation classes in their code. But this also means
// provider must not use appserver implementation classes directly
// because once we implement isolation in our class loader hierarchy
// the only classes available to application class loader would be
// our appserver interface classes. By Sahoo
provider =
PersistenceProvider.class.cast(
ClassLoader.class.cast(classLoader)
.loadClass(pInfo.getPersistenceProviderClassName())
.newInstance());
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
} catch (InstantiationException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
EntityManagerFactory emf = provider.createContainerEntityManagerFactory(
pInfo, integrationProperties);
logger.logp(Level.FINE, "PersistenceUnitLoaderImpl", "load", // NOI18N
"emf = {0}", emf); // NOI18N
RootDeploymentDescriptor rootDD = pud.getParent().getParent();
if (rootDD.isApplication()) {
Application.class.cast(rootDD).addEntityManagerFactory(
pInfo.getPersistenceUnitName(), pud.getPuRoot(), emf);
} else {
BundleDescriptor.class.cast(rootDD).addEntityManagerFactory(
pInfo.getPersistenceUnitName(), emf);
}
}
private void closeEMFs(
Collection<? extends EntityManagerFactory> entityManagerFactories) {
logger.logp(Level.FINE, "PersistenceUnitLoaderImpl", "closeEMFs", // NOI18N
"entityManagerFactories.size() = {0}", // NOI18N
entityManagerFactories.size());
for (EntityManagerFactory emf : entityManagerFactories) {
try {
logger.logp(Level.FINE, "PersistenceUnitLoaderImpl",
"closeEMFs", "emf = {0}", emf);
emf.close();
} catch (Exception e) {
logger.log(Level.WARNING, e.getMessage(), e);
}
}
}
static {
/*
* We set all the provider specific integration level properties here.
* It knows about all the integration level properties that
* are needed to integrate a provider with our container. When we add
* support for other containers, we should modify this code so that user
* does not have to specify such properties in their persistence.xml file.
* These properties can be overriden by persistence.xml as per
* the spec. Before applying default values for properties, this method
* first checks if the properties have been set in the system
* (typically done using -D option in domain.xml).
*
*/
Map<String, String> props = new HashMap<String, String>();
// TopLink specific properties:
// See https://glassfish.dev.java.net/issues/show_bug.cgi?id=249
final String TOPLINK_SERVER_PLATFORM_CLASS_NAME_PROPERTY =
"toplink.target-server"; // NOI18N
props.put(TOPLINK_SERVER_PLATFORM_CLASS_NAME_PROPERTY,
System.getProperty(TOPLINK_SERVER_PLATFORM_CLASS_NAME_PROPERTY,
"oracle.toplink.essentials.platform.server.sunas.SunAS9ServerPlatform")); // NOI18N
// These constants are defined in the entity-persistence module. Redefining them for now.
final String TOPLINK_DDL_GENERATION_MODE_PROPERTY =
"toplink.ddl-generation.output-mode"; // NOI18N
props.put(TOPLINK_DDL_GENERATION_MODE_PROPERTY,
System.getProperty(TOPLINK_DDL_GENERATION_MODE_PROPERTY,
"none")); // NOI18N
// Hibernate specific properties:
final String HIBERNATE_TRANSACTION_MANAGER_LOOKUP_CLASS_PROPERTY =
"hibernate.transaction.manager_lookup_class"; // NOI18N
props.put(HIBERNATE_TRANSACTION_MANAGER_LOOKUP_CLASS_PROPERTY,
System.getProperty(HIBERNATE_TRANSACTION_MANAGER_LOOKUP_CLASS_PROPERTY,
"org.hibernate.transaction.SunONETransactionManagerLookup")); // NOI18N
// use an unmodifiable map as we pass this to provider and we don't
// provider to change this.
integrationProperties = Collections.unmodifiableMap(props);
}
}
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