eu.geclipse.aws.ec2.ui.actions.AssociateElasticIPAction.java Source code

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Here is the source code for eu.geclipse.aws.ec2.ui.actions.AssociateElasticIPAction.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:
 *    Moritz Post - initial API and implementation
 *****************************************************************************/

package eu.geclipse.aws.ec2.ui.actions;

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

import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.IObjectActionDelegate;

import eu.geclipse.aws.ec2.EC2Instance;
import eu.geclipse.aws.ec2.ui.wizards.AssociateElasticIPWizard;

/**
 * The {@link IObjectActionDelegate} starts the {@link Job} to associate an EC2
 * instance with an elastic IP.
 * 
 * @author Moritz Post
 */
public class AssociateElasticIPAction extends AbstractAWSProjectAction {

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

    /**
     * Creates a new instance of this associating action.
     */
    public AssociateElasticIPAction() {
        this.instanceList = new ArrayList<EC2Instance>();
    }

    @Override
    public void run(final IAction action) {
        EC2Instance firstInstance = null;
        if (this.instanceList.size() > 0) {
            firstInstance = this.instanceList.get(0);

            extractAWSVoFromGridElement(firstInstance);

            AssociateElasticIPWizard associateElasticIPWizard = new AssociateElasticIPWizard(getAwsVo(),
                    this.instanceList.get(0));

            WizardDialog wizardDialog = new WizardDialog(getWorkbenchPart().getSite().getShell(),
                    associateElasticIPWizard);

            wizardDialog.open();
        }
    }

    public void selectionChanged(final IAction action, final 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);
    }

}