org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/actions/AddJarAction.java

package org.eclipse.jdt.internal.debug.ui.actions;

/**********************************************************************
Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
This file is made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html
**********************************************************************/

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

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.debug.ui.IJavaDebugUIConstants;
import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
import org.eclipse.jdt.internal.debug.ui.launcher.RuntimeClasspathViewer;
import org.eclipse.jdt.launching.IRuntimeClasspathEntry;
import org.eclipse.jdt.launching.JavaRuntime;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
import org.eclipse.ui.dialogs.ISelectionStatusValidator;
import org.eclipse.ui.model.WorkbenchContentProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.eclipse.ui.views.navigator.ResourceSorter;

/**
 * Adds an internal jar to the runtime class path.
 */
public class AddJarAction extends RuntimeClasspathAction {

	public AddJarAction(RuntimeClasspathViewer viewer) {
		super(ActionMessages.getString("AddJarAction.Add_&JARs_1"), viewer); //$NON-NLS-1$
	}	

	/**
	 * Prompts for a jar to add.
	 * 
	 * @see IAction#run()
	 */	
	public void run() {
		
		ISelectionStatusValidator validator= new ISelectionStatusValidator() {
			public IStatus validate(Object[] selection) {
				for (int i= 0; i < selection.length; i++) {
					if (selection[i] instanceof IFile) {
						IFile file = (IFile)selection[i];
						String ext = file.getFileExtension();
						if (ext.equalsIgnoreCase("jar") || ext.equalsIgnoreCase("zip")) { //$NON-NLS-1$ //$NON-NLS-2$
							// OK
						} else {
							return new Status(IStatus.ERROR, JDIDebugPlugin.getUniqueIdentifier(), IJavaDebugUIConstants.INTERNAL_ERROR, ActionMessages.getString("AddJarAction.Selection_must_be_a_jar_or_zip_4"), null); //$NON-NLS-1$
						}
					} else {
						return new Status(IStatus.ERROR, JDIDebugPlugin.getUniqueIdentifier(), IJavaDebugUIConstants.INTERNAL_ERROR, ActionMessages.getString("AddJarAction.Selection_must_be_a_jar_or_zip_4"), null); //$NON-NLS-1$
					}
					
				}
				return new Status(IStatus.OK, JDIDebugPlugin.getUniqueIdentifier(), 0, "", null); //$NON-NLS-1$
			}			
		};
		ViewerFilter filter= new ObjectFilter(getSelectedJars());
		
		ILabelProvider lp= new WorkbenchLabelProvider();
		ITreeContentProvider cp= new WorkbenchContentProvider();

		ElementTreeSelectionDialog dialog= new ElementTreeSelectionDialog(getShell(), lp, cp);
		dialog.setValidator(validator);
		dialog.setTitle(ActionMessages.getString("AddJarAction.JAR_Selection_7")); //$NON-NLS-1$
		dialog.setMessage(ActionMessages.getString("AddJarAction.Choose_jars_to_add__8")); //$NON-NLS-1$
		dialog.addFilter(filter);
		dialog.setInput(ResourcesPlugin.getWorkspace().getRoot());	
		dialog.setSorter(new ResourceSorter(ResourceSorter.NAME));

		if (dialog.open() == ElementTreeSelectionDialog.OK) {
			Object[] elements= dialog.getResult();
			IRuntimeClasspathEntry[] res= new IRuntimeClasspathEntry[elements.length];
			for (int i= 0; i < res.length; i++) {
				IResource elem= (IResource)elements[i];
				res[i]= JavaRuntime.newArchiveRuntimeClasspathEntry(elem);
			}
			getViewer().addEntries(res);
		}
					
	}

	/**
	 * @see SelectionListenerAction#updateSelection(IStructuredSelection)
	 */
	protected boolean updateSelection(IStructuredSelection selection) {
		return getViewer().isEnabled();
	}
	
	/**
	 * Returns a list of resources of currently selected jars
	 */
	protected List getSelectedJars() {
		List list = getEntiresAsList();
		List jars = new ArrayList();
		Iterator iter = list.iterator();
		while (iter.hasNext()) {
			IRuntimeClasspathEntry entry = (IRuntimeClasspathEntry)iter.next();
			if (entry.getType() == IRuntimeClasspathEntry.ARCHIVE) {
				IResource res = entry.getResource();
				if (res != null && res instanceof IFile) {
					jars.add(res);
				}
			}
		}
		return jars;
	}
}