/*
* 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.axis;
import java.io.ByteArrayInputStream;
import java.util.Hashtable;
import javax.xml.namespace.QName;
import org.apache.axis.AxisFault;
import org.apache.axis.MessageContext;
import org.apache.axis.WSDDEngineConfiguration;
import org.apache.axis.components.logger.LogFactory;
import org.apache.axis.deployment.wsdd.WSDDDeployment;
import org.apache.axis.deployment.wsdd.WSDDDocument;
import org.apache.axis.deployment.wsdd.WSDDService;
import org.apache.axis.description.ServiceDesc;
import org.apache.axis.enum.Scope;
import org.apache.axis.handlers.BasicHandler;
import org.apache.axis.handlers.soap.SOAPService;
import org.apache.axis.transport.http.HTTPConstants;
import org.apache.axis.utils.XMLUtils;
import org.apache.commons.logging.Log;
import org.osgi.framework.*;
/** An <code>OSGiServiceHandler</code> attempts to find the referenced service
* in the OSGi registry, and dynamically define a corresponding SOAP service.
*
* @author Lasse Helander (lars-erik.helander@home.se)
*/
public class OSGiServiceHandler
extends BasicHandler {
protected static Log log = LogFactory.getLog(OSGiServiceHandler.class.getName());
public void generateWSDL(MessageContext msgContext)
throws AxisFault {
invoke(msgContext);
}
public void invoke(MessageContext msgContext)
throws AxisFault {
log.debug("Enter: OSGiServiceHandler::invoke");
// If there's already a targetService then just return.
if (msgContext.getService() != null)
return;
String path = (String) msgContext.getProperty(
HTTPConstants.MC_HTTP_SERVLETPATHINFO);
int osgiSRindex = path.indexOf("osgi-sr/");
// If there's no "osgi-sr" in the path then just return.
if (osgiSRindex < 0)
return;
try {
String filter = path.substring(osgiSRindex + 8);
String serviceName = "OSGi-SR:" + filter;
WSDDEngineConfiguration config = (WSDDEngineConfiguration) msgContext.getAxisEngine()
.getConfig();
WSDDDeployment deployment = config.getDeployment();
WSDDService ws = findService(deployment, serviceName);
SOAPService service = null;
if (ws == null) {
BundleContext bContext = org.knopflerfish.bundle.axis.Activator.axisBundle;
Object serviceObject = null;
String sfilter = "(" + filter + ")";
ServiceReference[] srs = bContext.getServiceReferences(null,
sfilter);
serviceObject = bContext.getService(srs[0]);
String addDoc = deploymentWSDD(serviceWSDD(serviceName,
serviceObject.getClass().getName()));
WSDDDocument doc = new WSDDDocument(XMLUtils.newDocument(new ByteArrayInputStream(addDoc.getBytes())));
doc.deploy(deployment);
msgContext.getAxisEngine().refreshGlobalOptions();
deployment = config.getDeployment();
ws = findService(deployment, serviceName);
service = deployment.getService(ws.getQName());
// service.setOption("scope", Scope.APPLICATION_STR);
msgContext.getAxisEngine().getApplicationSession().set(serviceName,
serviceObject);
}
service = deployment.getService(ws.getQName());
msgContext.setService(service);
} catch (Exception e) {
e.printStackTrace();
throw AxisFault.makeFault(e);
}
log.debug("Exit: OSGiServiceHandler::invoke");
}
private String deploymentWSDD(String body) {
return "<deployment" + " xmlns=\"http://xml.apache.org/axis/wsdd/\"" +
" xmlns:java=\"http://xml.apache.org/axis/wsdd/providers/java\">" +
body + "</deployment>";
}
private WSDDService findService(WSDDDeployment deployment, String name) {
WSDDService[] ws = deployment.getServices();
for (int i = 0; i < ws.length; i++) {
WSDDService s = ws[i];
if (ws[i].getServiceDesc().getName().equals(name))
return ws[i];
}
return null;
}
private String serviceWSDD(String serviceName, String className) {
return "<service name=\"" + serviceName + "\" provider=\"java:RPC\">" +
"<parameter name=\"allowedMethods\" value=\"*\"/>" +
"<parameter name=\"className\" value=\"" + className + "\"/>" +
"<parameter name=\"scope\" value=\"Application\"/>" +
"</service>";
}
}