/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2007 - 2008, Open Source Geospatial Foundation (OSGeo)
* (C) 2008 - 2009, Johann Sorel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotoolkit.gui.swing.crschooser;
// OpenGIS dependencies
import org.opengis.referencing.AuthorityFactory;
import org.opengis.util.FactoryException;
/**
* An element in a {@link CodeList}. This element stores the {@linkplain #code code value}.
* The description name will be fetched when first needed and returned by {@link #toString}.
*
* @version $Id$
* @author Martin Desruisseaux (IRD)
* @module
*/
final class Code {
/**
* The sequential index.
*/
final int index;
/**
* The authority code.
*/
public final String code;
/**
* The CRS object description for the {@linkplain #code}.
* Will be extracted only when first needed.
*/
private String name;
/**
* The authority factory to use for fetching the name. Will be set to {@code null} after
* {@linkplain #name} has been made available, in order to allow the garbage collector
* to do its work if possible.
*/
private AuthorityFactory factory;
/**
* Creates a code from the specified value.
*
* @param factory The authority factory.
* @param code The authority code.
*/
public Code(final AuthorityFactory factory, final String code, final int index) {
this.factory = factory;
this.code = code;
this.index = index;
}
/**
* Returns the name for this code.
*
* @todo Maybe we should use the widget Locale when invoking InternationalString.toString(...).
*/
@Override
public String toString() {
if (name == null) try {
name = code + " - " + factory.getDescriptionText(code).toString();
} catch (FactoryException e) {
name = code + " - " + e.getLocalizedMessage();
}
factory = null;
return name;
}
}