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/*******************************************************************************
* Copyright (c) 2009 Red Hat, Inc.
* 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:
* Red Hat - initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.systemtap.local.core;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IFunction;
import org.eclipse.cdt.core.index.IIndex;
import org.eclipse.cdt.core.index.IIndexFile;
import org.eclipse.cdt.core.index.IIndexFileLocation;
import org.eclipse.cdt.core.index.IIndexManager;
import org.eclipse.cdt.core.index.IIndexName;
import org.eclipse.cdt.core.index.IndexFilter;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.linuxtools.systemtap.local.core.SystemTapUIErrorMessages;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.texteditor.ITextEditor;
/**
* Helper class that finds and opens files. Finds based on function names,
* opens based on path and in the current default editor.
*
*/
public class FileFinderOpener {
private static HashMap<String, Integer> offset = new HashMap<String, Integer>();
private static HashMap<String, Integer> length = new HashMap<String, Integer>();
/**
* @param project : C Project Type
* @param functionName : name of a function
* @return an ArrayList of String paths (relative to current workspace) of
* files with specified function name
*/
private static ArrayList<String> findFunctionsInProject(ICProject project,
String functionName) {
ArrayList<String> files = new ArrayList<String>() ;
IIndexManager manager = CCorePlugin.getIndexManager();
IIndex index = null;
try {
index = manager.getIndex(project);
index.acquireReadLock();
IBinding[] bindings = index.findBindings(functionName.toCharArray(), IndexFilter.ALL, null);
for (IBinding bind : bindings) {
if (bind instanceof IFunction) {
IFunction ifunction = (IFunction) bind;
IIndexName[] names = index.findNames(ifunction,
IIndex.FIND_DEFINITIONS);
for (IIndexName iname : names) {
IIndexFile file = iname.getFile();
if (file != null) {
IIndexFileLocation filelocation = file.getLocation();
String loc = filelocation.getURI().getPath();
files.add(loc);
offset.put(loc, iname.getNodeOffset());
length.put(loc, iname.getNodeLength());
}
}
}
}
} catch (CoreException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
index.releaseReadLock();
return files;
}
public static String findAndOpen(ICProject project, String functionName) {
offset.clear();
length.clear();
ArrayList<String> files = findFunctionsInProject(project, functionName);
if (files == null || files.size() < 1)
return null;
StringBuilder output = new StringBuilder();
if (files.size() == 1) {
open(files.get(0), offset.get(files.get(0)), length.get(files.get(0)));
} else {
ElementListSelectionDialog d = new ElementListSelectionDialog(
new Shell(), new LabelProvider());
d.setTitle(Messages.getString("FileFinderOpener.MultipleFilesDialog")); //$NON-NLS-1$
d.setMessage(Messages.getString("FileFinderOpener.MultFilesDialogM1") + functionName + Messages.getString("FileFinderOpener.MultFilesDialogM2") + //$NON-NLS-1$ //$NON-NLS-2$
Messages.getString("FileFinderOpener.MultFilesDialogM3")); //$NON-NLS-1$
d.setElements(files.toArray());
d.open();
for (Object o : d.getResult()) {
if (o instanceof String) {
String s = (String) o;
output.append(open(s, offset.get(s), length.get(s)));
}
}
}
return output.toString();
}
public static String open(String path, int offset, int length) {
if (path == null)
return null;
File fileToOpen = new File(path);
if (fileToOpen.exists() && fileToOpen.isFile()) {
IFileStore fileStore = EFS.getLocalFileSystem().getStore(fileToOpen.toURI());
IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
try {
IEditorPart ed = IDE.openEditorOnFileStore( page, fileStore );
if (ed instanceof ITextEditor && offset > 0) {
ITextEditor text = (ITextEditor) ed;
text.selectAndReveal(offset, length);
return text.getTitle();
}
} catch ( PartInitException e ) {
}
} else {
SystemTapUIErrorMessages mess = new SystemTapUIErrorMessages(Messages.getString("FileFinderOpener.FileNotFound"), //$NON-NLS-1$
Messages.getString("FileFinderOpener.FileNotFound1"), Messages.getString("FileFinderOpener.FileNotFound2") + path); //$NON-NLS-1$ //$NON-NLS-2$
mess.schedule();
}
return null;
}
}
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