/**
* Copyright (C) 2002-2012 The FreeCol Team
*
* This file is part of FreeCol.
*
* FreeCol is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* FreeCol 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with FreeCol. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.freecol.common.option;
import java.io.File;
import java.util.logging.Logger;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import net.sf.freecol.common.model.Specification;
/**
* Represents an option for specifying a <code>File</code>.
*/
public class FileOption extends AbstractOption<File> {
@SuppressWarnings("unused")
private static Logger logger = Logger.getLogger(FileOption.class.getName());
private File value = null;
/**
* Creates a new <code>FileOption</code>.
*
* @param specification The specification this option belongs
* to. May be null.
*/
public FileOption(Specification specification) {
super(specification);
}
public FileOption clone() {
FileOption result = new FileOption(getSpecification());
result.setValues(this);
return result;
}
/**
* Gets the current value of this <code>FileOption</code>.
*
* @return The value using <code>null</code> for marking no value.
*/
public File getValue() {
return value;
}
/**
* Sets the value of this <code>FileOption</code>.
*
* @param value The value to be set.
*/
public void setValue(File value) {
final File oldValue = this.value;
this.value = value;
if (value != oldValue) {
firePropertyChange(VALUE_TAG, oldValue, value);
}
isDefined = true;
}
protected void setValue(String valueString, String defaultValueString) {
if (valueString != null) {
value = new File(valueString);
} else if (defaultValueString != null) {
value = new File(defaultValueString);
} else {
value = null;
}
}
/**
* Returns whether <code>null</code> is an acceptable value for
* this Option. This method always returns <code>true</code>.
*
* @return true
*/
public boolean isNullValueOK() {
return true;
}
/**
* This method writes an XML-representation of this object to the given
* stream.
*
* @param out The target stream.
* @throws XMLStreamException if there are any problems writing to the
* stream.
*/
protected void toXMLImpl(XMLStreamWriter out) throws XMLStreamException {
super.toXML(out, getXMLElementTagName());
}
/**
* Write the attributes of this object to a stream.
*
* @param out The target stream.
* @throws XMLStreamException if there are any problems writing to
* the stream.
*/
@Override
protected void writeAttributes(XMLStreamWriter out)
throws XMLStreamException {
super.writeAttributes(out);
if (value != null) {
out.writeAttribute(VALUE_TAG, value.getAbsolutePath());
}
}
/**
* Gets the tag name of the root element representing this object.
*
* @return "fileOption".
*/
public static String getXMLElementTagName() {
return "fileOption";
}
}