EnableDeploymentSupport.java

package org.zend.php.zendserver.deployment.ui.commands;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.IJobChangeEvent;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.jobs.JobChangeAdapter;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.part.FileEditorInput;
import org.zend.php.zendserver.deployment.core.DeploymentNature;
import org.zend.php.zendserver.deployment.core.descriptor.DescriptorContainerManager;
import org.zend.php.zendserver.deployment.ui.Activator;
import org.zend.php.zendserver.deployment.ui.Messages;
import org.zend.php.zendserver.deployment.ui.editors.DeploymentDescriptorEditor;

public class EnableDeploymentSupport extends AbstractHandler {

	public Object execute(ExecutionEvent event) throws ExecutionException {
		ISelection selection = HandlerUtil.getCurrentSelection(event);
		if (selection.isEmpty())
			return null;
		
		Object element = null;
		if (selection instanceof IStructuredSelection) {
			element = ((IStructuredSelection)selection).getFirstElement();
		}
			
		if (element instanceof IAdaptable) {
			IResource res = (IResource) ((IAdaptable) element).getAdapter(IResource.class);
			final IProject project = res.getProject();
			
			Job job = new Job(Messages.EnableDeploymentSupport_EnableDeploymentSupport) {
	
				@Override
				protected IStatus run(IProgressMonitor monitor) {
					try {
						addNature(project, DeploymentNature.ID, monitor);
					} catch (CoreException e) {
						return e.getStatus();
					}
					return Status.OK_STATUS;
				}
			};
			job.setUser(true);
			job.schedule();
			job.addJobChangeListener(new JobChangeAdapter() {
				@Override
				public void done(IJobChangeEvent event) {
					if (event.getResult().getSeverity() == IStatus.OK) {
						openDescriptorEditor(project);
					}
				}
			});
		}
		
		
		return null;
	}

	private void addNature(IProject project, String id, IProgressMonitor monitor) throws CoreException {
		IProjectDescription description = project.getDescription();
		List<String> natures = new ArrayList<String>(Arrays.asList(description.getNatureIds()));
		if (natures.contains(id)) {
			// de-configure nature
			natures.remove(id);
			description.setNatureIds(natures.toArray(new String[natures.size()]));
			project.setDescription(description, monitor);
		}
		
		// configure project
		natures.add(id);
		description.setNatureIds(natures.toArray(new String[natures.size()]));
		project.setDescription(description, monitor);
		
	}
	
	private void openDescriptorEditor(final IProject project) {
		IWorkbench wb = PlatformUI.getWorkbench();
		wb.getDisplay().asyncExec(new Runnable() {
			public void run() {
				IWorkbench wb = PlatformUI.getWorkbench();
				IWorkbenchWindow window = wb.getActiveWorkbenchWindow();
				
				if (window != null) {
					IFile descriptorFile = project.getFile(DescriptorContainerManager.DESCRIPTOR_PATH);
					try {
						window.getActivePage().openEditor(new FileEditorInput(descriptorFile), DeploymentDescriptorEditor.ID);
					} catch (PartInitException e) {
						Activator.log(e);
					}
				}
			}
		});
	}

}