/*
* Copyright (c) 2003-2004, KNOPFLERFISH project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* - Neither the name of the KNOPFLERFISH project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.knopflerfish.bundle.jini;
import net.jini.core.lookup.ServiceItem;
import net.jini.lookup.ServiceDiscoveryEvent;
import net.jini.lookup.ServiceDiscoveryListener;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.jini.JiniDriver;
import java.util.Hashtable;
/**
* DOCUMENT ME!
*
* @author Nico Goeminne
*/
class Listener implements ServiceDiscoveryListener {
Hashtable services = new Hashtable();
Class[] clazzes = null;
/**
* Creates a new Listener object.
*
* @param clazz DOCUMENT ME!
*/
public Listener(Class clazz) {
this(new Class[] { clazz });
}
/**
* Creates a new Listener object.
*
* @param clazzes DOCUMENT ME!
*/
public Listener(Class[] clazzes) {
this.clazzes = clazzes;
}
/**
* DOCUMENT ME!
*
* @param event DOCUMENT ME!
*/
public void serviceAdded(ServiceDiscoveryEvent event) {
ServiceItem item = event.getPostEventServiceItem();
Object service = item.service;
Hashtable prop = new Hashtable();
prop.put(JiniDriver.ENTRIES, item.attributeSets);
prop.put(JiniDriver.SERVICE_ID, item.serviceID.toString());
Debug.printDebugInfo(10,
"Registering Jini Service in OSGi Framework " +
item.serviceID.toString());
ServiceRegistration reg = Activator.bc.registerService(toStrings(),
service, prop);
services.put(service, reg);
Debug.printDebugInfo(10,
"Registering Jini Service in OSGi Framework Completed " +
item.serviceID.toString());
}
/**
* DOCUMENT ME!
*
* @param event DOCUMENT ME!
*/
public void serviceChanged(ServiceDiscoveryEvent event) {
ServiceItem item = event.getPostEventServiceItem();
Object service = item.service;
Hashtable prop = new Hashtable();
prop.put(JiniDriver.ENTRIES, item.attributeSets);
prop.put(JiniDriver.SERVICE_ID, item.serviceID.toString());
Debug.printDebugInfo(10,
"Changing Jini Service properties in OSGi Framework " +
item.serviceID.toString());
ServiceRegistration reg = (ServiceRegistration) services.get(service);
if (reg != null) {
reg.setProperties(prop);
} else {
Debug.printDebugInfo(10, "Service is no longer in OSGi Framework");
}
Debug.printDebugInfo(10,
"Changing Jini Service properties in OSGi Framework Completed" +
item.serviceID.toString());
}
/**
* DOCUMENT ME!
*
* @param event DOCUMENT ME!
*/
public void serviceRemoved(ServiceDiscoveryEvent event) {
ServiceItem item = event.getPreEventServiceItem();
Object service = item.service;
Debug.printDebugInfo(10,
"Unregistering Jini Service in OSGi Framework " +
item.serviceID.toString());
ServiceRegistration reg = (ServiceRegistration) services.remove(service);
if (reg != null) {
reg.unregister();
} else {
Debug.printDebugInfo(10,
"Service Already Unregistered out OSGi Framework");
}
Debug.printDebugInfo(10,
"Unregistering Jini Service in OSGi Framework Completed " +
item.serviceID.toString());
}
/**
* DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
private String[] toStrings() {
String[] cl = new String[clazzes.length];
for (int i = 0; i < cl.length; i++) {
cl[i] = clazzes[i].getName();
}
return cl;
}
}