/*
 * Copyright (c) 2006 Stiftung Deutsches Elektronen-Synchroton,
 * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
 *
 * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
 * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
 * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
 * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
 * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
 * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
 * OR MODIFICATIONS.
 * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
 * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
 * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
 * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
 */
package org.csstudio.sds.internal.model;

import java.text.NumberFormat;
import java.util.Locale;

import org.csstudio.sds.model.PropertyTypesEnum;
import org.csstudio.sds.model.WidgetProperty;
import org.csstudio.sds.model.WidgetPropertyCategory;

/**
 * A property, which is able to handle String values.
 *
 * @author Sven Wende
 * @version $Revision: 1.2 $
 *
 */
public abstract class AbstractStringProperty extends WidgetProperty {

	/**
	 * Constructor.
	 *
	 * @param description
	 *            a description
	 * @param category
	 *            a category
	 * @param defaultValue
	 *            the default value
	 */
	public AbstractStringProperty(final PropertyTypesEnum type, final String description,
			final WidgetPropertyCategory category, final String defaultValue) {
		super(type, description, category, defaultValue,
				null);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public Object checkValue(final Object value) {
		Object acceptedValue = value;

		if(value != null && value instanceof Number) {
		    final NumberFormat instance = NumberFormat.getInstance(Locale.US);
		    instance.setGroupingUsed(false);
		    instance.setMinimumFractionDigits(0);
		    instance.setMaximumFractionDigits(100);
		    acceptedValue = instance.format(value);
		}else if (value != null && !(value instanceof String)) {
			acceptedValue = value.toString();
		}

		return acceptedValue;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public Class[] getCompatibleJavaTypes() {
		return new Class[]{Object.class, String.class};
	}

}