eu.geclipse.aws.ec2.ui.wizards.GroupPermissionWizardPage.java Source code

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Here is the source code for eu.geclipse.aws.ec2.ui.wizards.GroupPermissionWizardPage.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.wizards;

import java.net.URL;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

import com.xerox.amazonws.ec2.GroupDescription;

import eu.geclipse.aws.ec2.ui.internal.Activator;
import eu.geclipse.aws.util.AWSUtil;

/**
 * This {@link WizardPage} provides the form elements to add group based access
 * permissions to an EC2 security group.
 * 
 * @author Moritz Post
 */
public class GroupPermissionWizardPage extends WizardPage {

    /** Id of this Wizard page. */
    private static final String WIZARD_PAGE_ID = "eu.geclipse.aws.ec2.ui.wizard.groupPermission"; //$NON-NLS-1$

    /** The {@link Text} widget containing the account id. */
    private Text textAccountId;

    /** The text widget containing the group name of the account. */
    private Text textGroup;

    /**
     * The constructor creates the {@link WizardPage} and sets title, description
     * and page image.
     * 
     * @param securityGroup the security group to add the cidr entry to
     */
    public GroupPermissionWizardPage(final GroupDescription securityGroup) {
        super(GroupPermissionWizardPage.WIZARD_PAGE_ID,
                Messages.getString("GroupPermissionWizardPage.page_title") + securityGroup.getName(), //$NON-NLS-1$
                null);
        setDescription(Messages.getString("GroupPermissionWizardPage.page_description") //$NON-NLS-1$
                + securityGroup.getName());
        URL imgUrl = Activator.getDefault().getBundle().getEntry("icons/wizban/security_wiz.gif"); //$NON-NLS-1$
        setImageDescriptor(ImageDescriptor.createFromURL(imgUrl));
        setPageComplete(false);
    }

    public void createControl(final Composite parent) {

        Composite mainComp = new Composite(parent, SWT.NONE);
        GridData gData = new GridData(SWT.FILL, SWT.FILL, true, true);
        mainComp.setLayoutData(gData);
        GridLayout gridLayout = new GridLayout(2, false);
        mainComp.setLayout(gridLayout);

        // account id
        Label labelAccountId = new Label(mainComp, SWT.NONE);
        labelAccountId.setText(Messages.getString("GroupPermissionWizardPage.label_account_id")); //$NON-NLS-1$

        this.textAccountId = new Text(mainComp, SWT.BORDER);
        this.textAccountId.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
        this.textAccountId.addModifyListener(new ModifyListener() {

            public void modifyText(final ModifyEvent e) {
                validateForm();
            }
        });
        // group name
        Label labelGroup = new Label(mainComp, SWT.NONE);
        labelGroup.setText(Messages.getString("GroupPermissionWizardPage.label_group")); //$NON-NLS-1$

        this.textGroup = new Text(mainComp, SWT.BORDER);
        this.textGroup.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
        this.textGroup.addModifyListener(new ModifyListener() {

            public void modifyText(final ModifyEvent e) {
                validateForm();
            }
        });

        setControl(parent);
    }

    /**
     * Validate the form input and display an error message if validation failed.
     */
    private void validateForm() {

        String error = null;

        String transformedAccountNumber = AWSUtil.transformAWSAccountNumber(this.textAccountId.getText());

        if (transformedAccountNumber == null) {
            error = Messages.getString("GroupPermissionWizardPage.error_valid_account_id_required"); //$NON-NLS-1$
        }

        if (error == null && this.textGroup.getText().trim().length() == 0) {
            error = Messages.getString("GroupPermissionWizardPage.error_valid_security_group_required"); //$NON-NLS-1$
        }

        if (error == null) {
            setErrorMessage(null);
            setPageComplete(true);
        } else {
            setErrorMessage(error);
            setPageComplete(false);
        }
    }

    /**
     * A getter for the {@link #textAccountId} field.
     * 
     * @return the textAccountId
     */
    public String getAccountId() {
        return AWSUtil.transformAWSAccountNumber(this.textAccountId.getText().trim());
    }

    /**
     * A getter for the {@link #textGroup} field.
     * 
     * @return the textGroup
     */
    public String getGroup() {
        return this.textGroup.getText().trim();
    }

}