de.fhg.igd.mapviewer.server.wms.wizard.pages.ConfigurationNameFieldEditor.java Source code

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Here is the source code for de.fhg.igd.mapviewer.server.wms.wizard.pages.ConfigurationNameFieldEditor.java

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/*
 * Copyright (c) 2016 Fraunhofer IGD
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     Fraunhofer IGD <http://www.igd.fraunhofer.de/>
 */
package de.fhg.igd.mapviewer.server.wms.wizard.pages;

import org.eclipse.jface.preference.StringFieldEditor;

import de.fhg.igd.mapviewer.server.wms.WMSConfiguration;

/**
 * Field editor for a WMS configuration name
 * 
 * @author Simon Templer
 */
public class ConfigurationNameFieldEditor extends StringFieldEditor {

    private final WMSConfiguration configuration;

    /**
     * Default constructor
     * 
     * @param configuration the WMS configuration
     */
    public ConfigurationNameFieldEditor(WMSConfiguration configuration) {
        super();

        setEmptyStringAllowed(false);

        this.configuration = configuration;
    }

    /**
     * @see StringFieldEditor#doCheckState()
     */
    @Override
    protected boolean doCheckState() {
        String text = getStringValue();

        if (text.indexOf('/') >= 0) { // invalid characters TODO refine
            setErrorMessage(Messages.ServerNameFieldEditor_0);
            return false;
        }

        try {
            // don't allow already existing names
            boolean exists = configuration.nameExists(text);
            if (exists) {
                setErrorMessage(Messages.ServerNameFieldEditor_1);
            }
            return !exists;
        } catch (Exception e) {
            setErrorMessage(e.getLocalizedMessage());
            return false;
        }
    }

}