/*******************************************************************************
* Copyright (c) 2009 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
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.debug.core.sourcelookup;
import java.util.HashMap;
import java.util.Map.Entry;
import java.util.Set;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.internal.filesystem.local.LocalFile;
import org.eclipse.core.internal.resources.LinkDescription;
import org.eclipse.core.internal.resources.Project;
import org.eclipse.core.internal.resources.ProjectDescription;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.core.model.IStackFrame;
import org.eclipse.debug.core.sourcelookup.AbstractSourceLookupDirector;
import org.eclipse.debug.core.sourcelookup.ISourceLookupParticipant;
import org.eclipse.debug.internal.ui.views.launch.SourceNotFoundEditorInput;
import org.eclipse.php.internal.debug.core.IPHPDebugConstants;
import org.eclipse.php.internal.debug.core.zend.model.PHPDebugTarget;
/**
* PHP source lookup director. For PHP source lookup there is one source lookup
* participant.
*/
public class PHPSourceLookupDirector extends AbstractSourceLookupDirector {
/*
* (non-Javadoc)
*
* @seeorg.eclipse.debug.internal.core.sourcelookup.ISourceLookupDirector#
* initializeParticipants()
*/
public void initializeParticipants() {
addParticipants(new ISourceLookupParticipant[] { new PHPSourceLookupParticipant() });
}
public Object getSourceElement(Object element) {
Object obj = super.getSourceElement(element);
if (obj == null) {
if (element instanceof IStackFrame) {
obj = new SourceNotFoundEditorInput((IStackFrame) element);
}
}
if (obj instanceof LocalFile && element instanceof IStackFrame) {
IStackFrame stackFrame = (IStackFrame) element;
LocalFile localFile = (LocalFile) obj;
IProject project = null;
try {
if (stackFrame.getLaunch() != null
&& stackFrame.getLaunch().getLaunchConfiguration() != null) {
String file = stackFrame
.getLaunch()
.getLaunchConfiguration()
.getAttribute(IPHPDebugConstants.ATTR_FILE,
(String) null);
if (file != null) {
IWorkspaceRoot workspaceRoot = ResourcesPlugin
.getWorkspace().getRoot();
IResource resource = workspaceRoot.findMember(file);
if (resource != null) {
project = resource.getProject();
}
}
}
} catch (CoreException e1) {
}
if (project != null) {
IDebugTarget debugTarget = (IDebugTarget) stackFrame
.getDebugTarget();
try {
ProjectDescription desc = ((Project) project)
.internalGetDescription();
if (desc != null) {
HashMap links = desc.getLinks();
if (links != null) {
for (Entry entry : (Set<Entry>) links.entrySet()) {
IPath relativePath = (IPath) entry.getKey();
LinkDescription linkDescription = (LinkDescription) entry
.getValue();
IPath linkPath = new Path(linkDescription
.getLocationURI().getPath());
IPath filePath = new Path(localFile
.toLocalFile(EFS.NONE, null)
.getAbsolutePath());
if (linkPath.isPrefixOf(filePath)) {
filePath = filePath.removeFirstSegments(
linkPath.segmentCount()).setDevice(
null);
relativePath = relativePath
.append(filePath);
IFile file = null;
if (debugTarget instanceof PHPDebugTarget) {
file = ((PHPDebugTarget) debugTarget)
.getProject().getFile(
relativePath);
} else {
// not sure what the logic here is
// trying to achieve but it
// is specific to the zend
// implementation, so I have put
// something here for xdebug to stop
// errors in source lookup occuring
file = project.getFile(relativePath);
}
if (file.isAccessible()) {
return file;
}
}
}
}
}
} catch (CoreException e) {
}
}
}
return obj;
}
}