org.glassfish.osgi.ee.resources.JDBCResourceManager Maven / Gradle / Ivy
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package org.glassfish.osgi.ee.resources;
import com.sun.enterprise.config.serverbeans.*;
import org.jvnet.hk2.component.Habitat;
import org.osgi.service.jdbc.DataSourceFactory;
import org.osgi.framework.BundleContext;
import java.util.*;
/**
* Resource-Manager to export JDBC resources in GlassFish to OSGi's service-registry
*
* @author Jagadish Ramu
*/
public class JDBCResourceManager extends BaseResourceManager implements ResourceManager {
public JDBCResourceManager(Habitat habitat){
super(habitat);
}
public void registerResources(BundleContext context) {
registerJdbcResources(context);
}
/**
* Iterates through all of the configured jdbc-resources
* Exposes them as OSGi service by contract "javax.sql.DataSource"
*/
private void registerJdbcResources(BundleContext context) {
Resources resources = getHabitat().getComponent(Domain.class).getResources();
Collection jdbcResources = resources.getResources(JdbcResource.class);
for (JdbcResource resource : jdbcResources) {
ResourceRef resRef = getResourceHelper().getResourceRef(resource.getJndiName());
registerJdbcResource(resource, resRef, context);
}
}
/**
* {@inheritDoc}
*/
public void registerResource(BindableResource resource, ResourceRef resRef, BundleContext bundleContext) {
registerJdbcResource((JdbcResource) resource, resRef, bundleContext);
}
/**
* Retrieves driver-class-name information so as to register
* the service with parameter osgi.jdbc.driver.class
*
* @param resource jdbc-resource
* @param resRef resource-ref
*/
private void registerJdbcResource(JdbcResource resource, ResourceRef resRef, BundleContext bundleContext) {
if (resource.getEnabled().equalsIgnoreCase("true")) {
if (resRef != null && resRef.getEnabled().equalsIgnoreCase("true")) {
String poolName = resource.getPoolName();
JdbcConnectionPool pool = (JdbcConnectionPool)
getResources().getResourceByName(JdbcConnectionPool.class, poolName);
String className = pool.getDatasourceClassname();
// no need to use res-type to get driver/datasource-classname
// as either datasource-classname or driver-classname must be not null.
if(className == null){
className = pool.getDriverClassname();
}
Class[] intf = new Class[]{javax.sql.DataSource.class, Invalidate.class};
Object proxy = getProxy(resource.getJndiName(), intf, getClassLoader());
Dictionary properties = new Hashtable();
properties.put(DataSourceFactory.OSGI_JDBC_DRIVER_CLASS, className);
properties.put(Constants.JNDI_NAME, resource.getJndiName());
registerResourceAsService(bundleContext, resource, Constants.DS,
properties, proxy);
}
}
}
/**
* {@inheritDoc}
*/
public boolean handlesResource(BindableResource resource) {
return resource instanceof JdbcResource;
}
}