org.apache.derby.ui.popup.actions.RemoveDerbyNature.java Source code

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Here is the source code for org.apache.derby.ui.popup.actions.RemoveDerbyNature.java

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/*
    
   Derby - Class org.apache.derby.ui.popup.actions.RemoveDerbyNature
       
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to you 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.apache.derby.ui.popup.actions;

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

import org.apache.derby.ui.common.CommonNames;
import org.apache.derby.ui.common.Messages;
import org.apache.derby.ui.container.DerbyClasspathContainer;
import org.apache.derby.ui.util.DerbyServerUtils;
import org.apache.derby.ui.util.Logger;
import org.apache.derby.ui.util.SelectionUtil;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;

public class RemoveDerbyNature implements IObjectActionDelegate {

    private IJavaProject currentJavaProject;
    private IProject currentProject;

    /* (non-Javadoc)
     * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart)
     */
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
    }

    private static String[] removeDerbyNature(String[] natures) {
        ArrayList arrL = new ArrayList();

        for (int i = 0; i < natures.length; i++) {
            if (!(natures[i].equalsIgnoreCase(CommonNames.DERBY_NATURE))) {
                arrL.add(natures[i]);
            }
        }
        String[] newNatures = new String[arrL.size()];
        for (int i = 0; i < arrL.size(); i++) {
            newNatures[i] = (String) arrL.get(i);
        }
        return newNatures;
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
        IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        try {
            ((ApplicationWindow) window).setStatus(Messages.REMOVING_NATURE);

            if (currentJavaProject == null) {
                currentJavaProject = JavaCore.create(currentProject);
            }
            //Shutdown server if running for the current project
            if (DerbyServerUtils.getDefault().getRunning(currentJavaProject.getProject())) {
                DerbyServerUtils.getDefault().stopDerbyServer(currentJavaProject.getProject());
            }
            IClasspathEntry[] rawClasspath = currentJavaProject.getRawClasspath();

            List<IClasspathEntry> newEntries = new ArrayList<IClasspathEntry>();
            for (IClasspathEntry e : rawClasspath) {
                if (e.getEntryKind() != IClasspathEntry.CPE_CONTAINER) {
                    newEntries.add(e);
                } else if (!e.getPath().equals(DerbyClasspathContainer.CONTAINER_ID)) {
                    newEntries.add(e);
                }
            }

            IClasspathEntry[] newEntriesArray = new IClasspathEntry[newEntries.size()];
            newEntriesArray = (IClasspathEntry[]) newEntries.toArray(newEntriesArray);
            currentJavaProject.setRawClasspath(newEntriesArray, null);

            IProjectDescription description = currentJavaProject.getProject().getDescription();
            String[] natures = description.getNatureIds();

            description.setNatureIds(removeDerbyNature(natures));
            currentJavaProject.getProject().setDescription(description, null);
            // refresh project so user sees changes
            currentJavaProject.getProject().refreshLocal(IResource.DEPTH_INFINITE, null);
            ((ApplicationWindow) window).setStatus(Messages.DERBY_NATURE_REMOVED);
        } catch (Exception e) {
            Logger.log(
                    Messages.ERROR_REMOVING_NATURE + " '" + currentJavaProject.getProject().getName() + "': " + e,
                    IStatus.ERROR);

            Shell shell = new Shell();
            MessageDialog.openInformation(shell, CommonNames.PLUGIN_NAME,
                    Messages.ERROR_REMOVING_NATURE + ":\n" + SelectionUtil.getStatusMessages(e));
        }

    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
     */
    public void selectionChanged(IAction action, ISelection selection) {
        currentJavaProject = SelectionUtil.findSelectedJavaProject(selection);
        if (currentJavaProject == null) {
            currentProject = org.apache.derby.ui.util.SelectionUtil.findSelectedProject(selection);
        }
    }

}