/*
* 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 org.osgi.framework.Bundle;
import org.osgi.framework.ServiceReference;
import org.osgi.service.http.HttpService;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.Properties;
/**
* DOCUMENT ME!
*
* @author Nico Goeminne
*/
public class RMICodeBaseService {
public static final String RMI_SERVER_CODEBASE = "java.rmi.server.codebase";
private static RMICodeBaseService rmiCodeBaseService = null;
private static BundleHttpContext bundleHttpContext = null;
private static HttpService httpService = null;
private static String mountpoint = null;
private static URL codebase = null;
/**
* Creates a new RMICodeBaseService object.
*
* @param mountpoint DOCUMENT ME!
*
* @throws Exception DOCUMENT ME!
*/
private RMICodeBaseService(String mountpoint) throws Exception {
this.mountpoint = mountpoint;
ServiceReference ref = Activator.bc.getServiceReference(
"org.osgi.service.http.HttpService");
httpService = (HttpService) Activator.bc.getService(ref);
if (setCodeBase(prepareCodeBase(ref, httpService, mountpoint))) {
bundleHttpContext = new BundleHttpContext();
try {
httpService.registerResources(mountpoint, "", bundleHttpContext);
} catch (Exception ex) {
Debug.printDebugInfo(10,
"Could not register mointpount " + mountpoint);
throw new Exception("Mountpoint already in use");
}
} else {
Debug.printDebugInfo(10,
"Could not set " + RMI_SERVER_CODEBASE + " property");
throw new Exception("Unable to set " + RMI_SERVER_CODEBASE +
" property");
}
}
/**
* DOCUMENT ME!
*
* @param mountpoint DOCUMENT ME!
*
* @return DOCUMENT ME!
*
* @throws Exception DOCUMENT ME!
*/
public static RMICodeBaseService getRMICodeBaseService(String mountpoint)
throws Exception {
if (rmiCodeBaseService == null) {
rmiCodeBaseService = new RMICodeBaseService(mountpoint);
}
return rmiCodeBaseService;
}
/**
* DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
public static RMICodeBaseService getRMICodeBaseService() {
return rmiCodeBaseService;
}
/**
* DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
public String getCodebase() {
return codebase.toString();
}
/**
* DOCUMENT ME!
*/
public void destroyService() {
httpService.unregister(mountpoint);
rmiCodeBaseService = null;
}
/**
* DOCUMENT ME!
*
* @param b DOCUMENT ME!
*/
public void setCodebaseForBundle(Bundle b) {
bundleHttpContext.ensureCodebaseFor(b);
}
/**
* DOCUMENT ME!
*
* @param b DOCUMENT ME!
*/
public void removeCodebaseForBundle(Bundle b) {
bundleHttpContext.removeCodebaseFor(b);
}
/**
* DOCUMENT ME!
*
* @param codebase DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
private boolean setCodeBase(URL codebase) {
if (codebase == null) {
return false;
}
Properties props = System.getProperties();
if (props.getProperty(RMICodeBaseService.RMI_SERVER_CODEBASE) != null) {
if (!props.getProperty(RMICodeBaseService.RMI_SERVER_CODEBASE)
.equals(codebase.toString())) {
return false;
}
}
this.codebase = codebase;
props.setProperty(RMICodeBaseService.RMI_SERVER_CODEBASE,
codebase.toString());
return true;
}
/**
* DOCUMENT ME!
*
* @param ref DOCUMENT ME!
* @param httpService DOCUMENT ME!
* @param mountpoint DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
private URL prepareCodeBase(ServiceReference ref, HttpService httpService,
String mountpoint) {
String host = null;
try {
host = InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException ex) {
return null;
}
if (httpService == null) {
return null;
}
if (ref == null) {
return null;
}
int port = ((Integer) (ref.getProperty("port"))).intValue();
URL url = null;
try {
url = new URL("http://" + host + ":" + port + mountpoint + "/");
} catch (MalformedURLException ex1) {
return null;
}
return url;
}
}