/**
* Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
package org.python.pydev.django.nature;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IProjectNature;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.python.pydev.core.log.Log;
import org.python.pydev.plugin.nature.PythonNature;
public class DjangoNature implements IProjectNature {
public static final String DJANGO_NATURE_ID = PythonNature.DJANGO_NATURE_ID;
private IProject project;
public void configure() throws CoreException {
}
public void deconfigure() throws CoreException {
}
public IProject getProject() {
return project;
}
public void setProject(IProject project) {
this.project = project;
}
public static synchronized void addNature(IProject project, IProgressMonitor monitor) throws CoreException {
if (project == null || !project.isOpen()) {
return;
}
if (monitor == null) {
monitor = new NullProgressMonitor();
}
IProjectDescription desc = project.getDescription();
if (!project.hasNature(PythonNature.PYTHON_NATURE_ID)) {
//also add the python nature if it still wasn't added.
PythonNature.addNature(project, null, null, null, null, null, null);
}
//only add the django nature if it still hasn't been added.
if (!project.hasNature(DJANGO_NATURE_ID)) {
String[] natures = desc.getNatureIds();
String[] newNatures = new String[natures.length + 1];
System.arraycopy(natures, 0, newNatures, 0, natures.length);
newNatures[natures.length] = DJANGO_NATURE_ID;
desc.setNatureIds(newNatures);
project.setDescription(desc, monitor);
}
}
private static final Object lockGetNature = new Object();
/**
* @param project the project we want to know about (if it is null, null is returned)
* @return the django nature for a project (or null if it does not exist for the project)
*
* @note: it's synchronized because more than 1 place could call getDjangoNature at the same time and more
* than one nature ended up being created from project.getNature().
*/
public static DjangoNature getDjangoNature(IProject project) {
if (project != null && project.isOpen()) {
try {
if (project.hasNature(DJANGO_NATURE_ID)) {
synchronized (lockGetNature) {
IProjectNature n = project.getNature(DJANGO_NATURE_ID);
if (n instanceof DjangoNature) {
return (DjangoNature) n;
}
}
}
} catch (CoreException e) {
Log.logInfo(e);
}
}
return null;
}
public static synchronized void removeNature(IProject project, IProgressMonitor monitor) throws CoreException {
if (monitor == null) {
monitor = new NullProgressMonitor();
}
DjangoNature nature = DjangoNature.getDjangoNature(project);
if (nature == null) {
return;
}
//and finally... remove the nature
IProjectDescription description = project.getDescription();
List<String> natures = new ArrayList<String>(Arrays.asList(description.getNatureIds()));
natures.remove(DJANGO_NATURE_ID);
description.setNatureIds(natures.toArray(new String[natures.size()]));
project.setDescription(description, monitor);
}
}