eu.geclipse.smila.actions.CopyAllHostnames.java Source code

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Here is the source code for eu.geclipse.smila.actions.CopyAllHostnames.java

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/*****************************************************************************
 * Copyright (c) 2008 g-Eclipse Consortium 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Initial development of the original code was made for the
 * g-Eclipse project founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * 
 * Contributors:
 *    Harald Kornmayer - NEC Laboratories Europe
 *    
 *****************************************************************************/
package eu.geclipse.smila.actions;

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

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

import eu.geclipse.aws.ec2.EC2Instance;

public class CopyAllHostnames implements IObjectActionDelegate {

    /** The {@link IWorkbenchPart} to use for opening the dialog. */
    private IWorkbenchPart workbenchPart;

    /** The list of selected {@link EC2Instance}s. */
    private List<EC2Instance> instanceList;

    /**
     * 
     */
    public CopyAllHostnames() {
        instanceList = new ArrayList<EC2Instance>();
    }

    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
        this.workbenchPart = targetPart;

    }

    public void run(IAction action) {

        String hostname = null;
        StringBuffer buffer = new StringBuffer();
        Display dis = Display.getCurrent();
        Clipboard cb = new Clipboard(dis);

        TextTransfer textTransfer = TextTransfer.getInstance();
        for (int i = 0; i < instanceList.size(); i++) {
            EC2Instance inst = instanceList.get(i);
            hostname = inst.getHostName();

            buffer.append(hostname + " \n");
        }

        cb.setContents(new Object[] { buffer.toString() }, new Transfer[] { textTransfer });

    }

    public void selectionChanged(IAction action, ISelection selection) {
        boolean enable = false;
        this.instanceList.clear();

        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structuredSelection = (IStructuredSelection) selection;
            for (Object element : structuredSelection.toList()) {
                if (element instanceof EC2Instance) {
                    EC2Instance ec2Instance = (EC2Instance) element;
                    this.instanceList.add(ec2Instance);
                }
            }
        }
        if (this.instanceList.size() > 0) {
            enable = true;
        }
        action.setEnabled(enable);
    }
}