/*******************************************************************************
* Copyright (c) 2007-2012 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.text.ext.hyperlink;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.search.IJavaSearchConstants;
import org.eclipse.jdt.core.search.IJavaSearchScope;
import org.eclipse.jdt.core.search.SearchEngine;
import org.eclipse.jdt.core.search.SearchMatch;
import org.eclipse.jdt.core.search.SearchParticipant;
import org.eclipse.jdt.core.search.SearchPattern;
import org.eclipse.jdt.core.search.SearchRequestor;
import org.eclipse.jdt.internal.core.JarEntryFile;
import org.eclipse.jdt.internal.core.JarEntryResource;
import org.eclipse.jdt.internal.core.JarPackageFragmentRoot;
import org.eclipse.jdt.internal.core.PackageFragment;
import org.eclipse.jdt.internal.ui.javaeditor.JarEntryEditorInput;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IRegion;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IStorageEditorInput;
import org.eclipse.ui.IWorkbenchPage;
import org.jboss.tools.common.text.ext.ExtensionsPlugin;
import org.jboss.tools.common.text.ext.hyperlink.xpl.Messages;
/**
* @author Jeremy
*/
public class ClassHyperlink extends AbstractHyperlink {
/**
* @see com.ibm.sse.editor.AbstractHyperlink#doHyperlink(org.eclipse.jface.text.IRegion)
*/
protected void doHyperlink(IRegion region) {
try {
IJavaElement element = null;
IEditorPart part = null;
String className = getClassName(region);
if (className != null && className.trim().length() > 0)
element = searchForClass(className);
if (element != null)
part = JavaUI.openInEditor(element);
if (part != null && element != null)
JavaUI.revealInEditor(part, element);
else {
// could not open editor
openFileFailed();
}
} catch (CoreException x) {
// could not open editor
openFileFailed();
}
}
private String getClassName(IRegion region) {
try {
return getDocument().get(region.getOffset(), region.getLength()).trim();
} catch (BadLocationException x) {
// Ignore
return null;
} finally {
}
}
private IJavaElement searchForClass(IJavaProject javaProject, String className) throws JavaModelException {
// Get the search pattern
SearchPattern pattern = SearchPattern.createPattern(className, IJavaSearchConstants.TYPE, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE);
// Get the search scope
IJavaSearchScope scope = SearchEngine.createJavaSearchScope(new IJavaElement[] { javaProject });
final List<SearchMatch> matches = new ArrayList<SearchMatch>();
// Get the search requestor
SearchRequestor requestor = new SearchRequestor() {
public void acceptSearchMatch(SearchMatch match) throws CoreException {
matches.add(match);
}
};
// Search
SearchEngine searchEngine = new SearchEngine();
try {
searchEngine.search(pattern, new SearchParticipant[] {SearchEngine.getDefaultSearchParticipant()}, scope, requestor, null);
} catch (CoreException ex) {
// Ignore
// ExtensionsPlugin.log(ex);
}
for (Iterator i = matches.iterator(); i != null && i.hasNext();) {
IJavaElement element = (IJavaElement)((SearchMatch)i.next()).getElement();
String classQualifiedName = getQualifiedClassName(element);
if (className.equals(classQualifiedName))
return element;
}
return javaProject.findType(className, new NullProgressMonitor());
}
private String getQualifiedClassName(IJavaElement element) {
if(element instanceof IType) {
return ((IType)element).getFullyQualifiedName('.');
}
return null;
}
private IJavaElement searchForClass(final String className) {
IJavaElement result = null;
try {
IFile documentFile = getFile();
IProject project = null;
if (documentFile == null) {
IWorkbenchPage workbenchPage = ExtensionsPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage();
IEditorPart activeEditorPart = workbenchPage.getActiveEditor();
IEditorInput editorInput = activeEditorPart.getEditorInput();
//added by Maksim Areshkau, fix for https://jira.jboss.org/jira/browse/JBIDE-4638
//in this code we looking for java resource if editor has been opened in resource which packed into jar file
if (editorInput instanceof JarEntryEditorInput) {
JarEntryEditorInput jarEntryEditorInput = (JarEntryEditorInput) editorInput;
JarEntryResource jarEntryFile = (JarEntryResource) jarEntryEditorInput.getStorage();
IJavaProject parentProject = getProjectForJarResource(jarEntryFile);
if (parentProject != null) {
result = searchForClass(parentProject, className);
}
} else if (editorInput instanceof IStorageEditorInput) {
IStorageEditorInput moeInput = (IStorageEditorInput)editorInput;
IStorage storage = moeInput.getStorage();
if (storage instanceof JarEntryFile) {
IJavaProject parentProject = getProjectForJarResource((JarEntryFile)storage);
if (parentProject != null) {
result = searchForClass(parentProject, className);
}
}
IPath p = storage.getFullPath();
String s0 = p.segment(0);
project = ResourcesPlugin.getWorkspace().getRoot().getProject(s0);
}
} else {
project = documentFile.getProject();
}
if(result==null && project != null && project.isOpen() && project.hasNature(JavaCore.NATURE_ID)) {
IJavaProject javaProject = JavaCore.create(project);
result = searchForClass(javaProject, className);
}
} catch (CoreException x) {
ExtensionsPlugin.getPluginLog().logError("Error while looking for class " + className, x); //$NON-NLS-1$
}
return result;
}
private IJavaProject getProjectForJarResource(JarEntryResource jarResource){
Object parent = jarResource.getParent();
while( parent instanceof JarEntryResource) {
parent = ((JarEntryResource)parent).getParent();
}
while (parent instanceof PackageFragment) {
parent = ((PackageFragment)parent).getParent();
}
if( (parent instanceof JarPackageFragmentRoot) &&
(((JarPackageFragmentRoot)parent).getParent() instanceof IJavaProject)) {
return (IJavaProject)((JarPackageFragmentRoot)parent).getParent();
}
return null;
}
/*
* (non-Javadoc)
*
* @see IHyperlink#getHyperlinkText()
*/
public String getHyperlinkText() {
String className = getClassName(getHyperlinkRegion());
if (className == null)
return MessageFormat.format(Messages.OpenA, Messages.Class);
return MessageFormat.format(Messages.OpenClass, className);
}
}