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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* yyyymmdd bug Email and other contact information
* -------- -------- -----------------------------------------------------------
* 20060317 127456 cbrealey@ca.ibm.com - Chris Brealey
*******************************************************************************/
package org.eclipse.jst.ws.internal.axis.consumption.core.locator;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.IJavaModel;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.ITypeHierarchy;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.wst.ws.internal.wsfinder.AbstractWebServiceLocator;
import org.eclipse.wst.ws.internal.wsrt.WebServiceClientInfo;
/**
* @author cbrealey
* The Axis Web service locator plugs itself into the
* Web Services Finder framework and does the job of
* locating Axis clients and services.
*/
public class AxisWebServiceLocator extends AbstractWebServiceLocator
{
private String AXIS_STUB = "org.apache.axis.client.Stub";
/**
* Searches the workspace for Axis clients as
* identified by non-stub classes that implement
* SEIs that are implemented by stubs that implement
* org.apache.axis.client.Stub.
* @param monitor A progress monitor, possibly null.
* @return A possibly empty list of WebServiceClientInfo objects.
*/
public List getWebServiceClients (IProgressMonitor monitor)
{
List list = new LinkedList();
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
IJavaModel javaModel = JavaCore.create(root);
try
{
javaModel.open(monitor);
IJavaProject[] javaProjects = javaModel.getJavaProjects();
for (int i=0; i<javaProjects.length; i++)
{
// We're only interested in Java projects within which
// the Axis runtime's client "Stub" class is loadable:
IType axisStub = javaProjects[i].findType(AXIS_STUB);
if (axisStub != null)
{
// Find "Proxy" classes in the project and add to the list.
addAxisProxies(javaProjects[i],axisStub,list,monitor);
}
}
javaModel.close();
}
catch (Exception e)
{
// Fall thru and return an empty list.
}
return list;
}
/**
* Tries to find Axis "Proxy" classes related the given Stub.
* @param axisStub The Axis client "Stub" from which to search.
* @param list A list to which we'll add and WebServiceClientInfo
* objects for "Proxy" classes we find in the search.
*/
private void addAxisProxies (IJavaProject javaProject, IType axisStub, List list, IProgressMonitor monitor)
{
try
{
// Compute a hierarchy to help us find all the
// generated Stub subclasses of the Axis "Stub"
// class across the entire workspace:
ITypeHierarchy axisStubHierarchy = axisStub.newTypeHierarchy(javaProject,monitor);
IType[] stubs = axisStubHierarchy.getSubtypes(axisStub);
for (int s=0; s<stubs.length; s++)
{
// For each stub, find all its super-interfaces of which
// there should be one, namely the generated SEI:
IType seis[] = axisStubHierarchy.getSuperInterfaces(stubs[s]);
for (int i=0; i<seis.length; i++)
{
try
{
// Compute a hierarchy to help us find all the
// generated classes that implement the SEI
// confined to the current project:
ITypeHierarchy seiHierarchy = seis[i].newTypeHierarchy(javaProject,monitor);
IType[] proxies = seiHierarchy.getSubtypes(seis[i]);
for (int p=0; p<proxies.length; p++)
{
// Under normal circumstances we should find two subclasses:
// 1. The generated stub that got us here (two loops above).
// 2. The generated "Proxy" that we're looking for.
// Skip #1 and capture #2:
if (!proxies[p].getFullyQualifiedName().equals(stubs[s].getFullyQualifiedName()))
{
WebServiceClientInfo wscInfo = newWebServiceClientInfo(proxies[p]);
if (wscInfo != null)
{
list.add(wscInfo);
}
}
}
}
catch (Exception e)
{
// We'll land here if the JDT was unable to compute
// a type hierarchy for the current SEI.
// This should never happen, but if it does,
// there's not much we can do except bypass the SEI
// and loop on to the next one.
}
}
}
}
catch (Exception e)
{
// We'll land here if JDT was unable to compute
// a type hierarchy for the Axis client "Stub" class.
// This should never happen, but if it does,
// there's not much we can do except bail out, having
// added nothing to the list.
}
}
/**
* Creates a new WebServiceClientInfo object for a
* JDT IType object representing a generated Proxy.
* @param axisProxy The IType of the generated Proxy.
* @return A new WebServiceClientInfo object describing the Proxy,
* or null if the IType does not appear to describe a normal Proxy.
*/
private WebServiceClientInfo newWebServiceClientInfo (IType axisProxy)
{
WebServiceClientInfo wscInfo = null;
try
{
IResource resource = axisProxy.getUnderlyingResource();
if (resource != null)
{
IPath proxyPath = resource.getLocation();
if (proxyPath != null)
{
String proxyURL = proxyPath.toFile().toURL().toString();
wscInfo = new WebServiceClientInfo();
wscInfo.setImplURL(proxyURL);
}
}
}
catch (Exception e)
{
// We'll land here if we could not convert the IType
// into an IResource, or if we could not compute a URL
// from that resource. Either way, it definitely isn't
// a normal generated Proxy, so get out and return null.
}
return wscInfo;
}
/**
* Searches the workspace for Axis services as
* identified by deploy.wsdd <service> elements
* in projects with an Axis servlet registered
* in the web.xml descriptor.
* @param monitor A progress monitor, possibly null.
* @return A possibly empty list of WebServiceInfo objects.
*/
public List getWebServices (IProgressMonitor monitor)
{
return super.getWebServices(monitor);
}
}
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