/*
* Copyright 2009, 2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.eclipse.ui.utils;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.codehaus.groovy.eclipse.GroovyPlugin;
import org.codehaus.groovy.eclipse.core.GroovyCore;
import org.codehaus.groovy.eclipse.core.model.GroovyRuntime;
import org.codehaus.groovy.eclipse.editor.actions.RenameToGroovyOrJavaAction;
import org.codehaus.jdt.groovy.model.GroovyNature;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ltk.core.refactoring.resource.RenameResourceChange;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.progress.UIJob;
/**
*
* @author Andrew Eisenberg
* @author Nieraj Singh
* @created 2010-11-18
*/
public class GroovyResourceUtil {
public static final String GROOVY = ".groovy";
public static final String JAVA = ".java";
private GroovyResourceUtil() {
// Utility
}
public static IStatus renameFile(String type, List<IResource> resources) {
UIJob renameTo = new RenameToGroovyOrJavaJob(type, resources);
renameTo.schedule();
return Status.OK_STATUS;
}
/**
* @author Andrew Eisenberg
* @created Oct 17, 2009
*
*/
public static class RenameToGroovyOrJavaJob extends UIJob {
private List<IResource> resources;
private String javaOrGroovy;
private RenameToGroovyOrJavaJob(String javaOrGroovy, List<IResource> resources) {
super(getJobName(javaOrGroovy));
this.resources = resources;
this.javaOrGroovy = javaOrGroovy;
}
protected static String getJobName(String javaOrGroovy) {
return "Rename to " + javaOrGroovy;
}
@Override
public boolean belongsTo(Object family) {
return RenameToGroovyOrJavaAction.class == family;
}
@Override
public IStatus runInUIThread(IProgressMonitor monitor) {
Set<IProject> affectedProjects = new HashSet<IProject>();
final Set<IResource> filesAlreadyOpened = new HashSet<IResource>();
for (IResource resource : resources) {
if (resource != null) {
if (resource.getType() != IResource.FILE) {
continue;
}
IDE.saveAllEditors(new IFile[] { (IFile) resource }, true);
String name = convertName(resource);
RenameResourceChange change = new RenameResourceChange(resource.getFullPath(), name); //$NON-NLS-1$
try {
if (isOpenInEditor(resource)) {
filesAlreadyOpened.add(resource);
}
change.perform(monitor);
IProject project = resource.getProject();
if (!GroovyNature.hasGroovyNature(project)) {
affectedProjects.add(project);
}
} catch (CoreException e) {
String message = "Error converting file extension to " + javaOrGroovy + " for file " + resource.getName();
GroovyCore.logException(message, e);
return new Status(IStatus.ERROR, GroovyPlugin.PLUGIN_ID, message, e);
}
}
}
if (!affectedProjects.isEmpty() && javaOrGroovy.equals(GROOVY)) {
askToConvert(affectedProjects, this.getDisplay().getActiveShell());
}
reopenFiles(filesAlreadyOpened);
return Status.OK_STATUS;
}
/**
* @param file
* @return
*/
protected String convertName(IResource file) {
String name = file.getName();
name = name.substring(0, name.lastIndexOf('.'));
name = name + javaOrGroovy;
return name;
}
/**
* Reopen files that were closed
*
* @param filesAlreadyOpened
*/
protected void reopenFiles(Set<IResource> filesAlreadyOpened) {
for (IResource origResource : filesAlreadyOpened) {
String name = convertName(origResource);
IFile newFile = origResource.getParent().getFile(new Path(name));
try {
IDE.openEditor(getWorkbenchPage(), newFile);
} catch (PartInitException e) {
GroovyCore.logException("Exception thrown when opening " + name + " in an editor", e);
}
}
}
/**
* @return
*/
private IWorkbenchPage getWorkbenchPage() {
return PlatformUI.getWorkbench().getWorkbenchWindows()[0].getActivePage();
}
protected void askToConvert(Set<IProject> affectedProjects, Shell shell) {
if (affectedProjects.size() == 0) {
return;
}
StringBuilder sb = new StringBuilder();
if (affectedProjects.size() > 1) {
sb.append("Projects ");
for (IProject project : affectedProjects) {
sb.append(project.getName()).append(", ");
}
sb.replace(sb.length() - 2, 2, " do ");
} else {
sb.append("Project ").append(affectedProjects.iterator().next().getName()).append(" does ");
}
sb.append("have the Groovy nature. Do you want to add it?");
boolean yes = MessageDialog.openQuestion(shell, "Convert to Groovy?", sb.toString());
if (yes) {
for (IProject project : affectedProjects) {
GroovyRuntime.addGroovyRuntime(project);
}
}
}
/**
* @param file
* @return
*/
protected boolean isOpenInEditor(IResource file) {
try {
IEditorReference[] refs = getWorkbenchPage().getEditorReferences();
for (IEditorReference ref : refs) {
try {
if (ref.getEditorInput() instanceof IFileEditorInput) {
IFileEditorInput input = (IFileEditorInput) ref.getEditorInput();
if (input.getFile().equals(file)) {
return true;
}
}
} catch (PartInitException e) {
// Safe to ignore. This can happen when a class file
// editor
// was open, but its underlying resource was deleted.
}
}
} catch (NullPointerException npe) {
// workbench is shutting down, editors cannot be reached
// ok to ignore.
} catch (IndexOutOfBoundsException e) {
// no open workbench windows. OK to ignore
}
return false;
}
}
}