/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* 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; either version 2.1 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.configure;
import java.util.List;
import org.jnode.configure.PropertySet.Value;
/**
* This class represents a property type with a enumerated set of values.
*
* @author crawley@jnode.org
*/
public class EnumeratedType extends PropertyType {
public static class Alternate {
public final String token;
public final String value;
public Alternate(String token, String value) {
super();
this.token = token;
this.value = value;
}
}
private final List<Alternate> alternates;
public EnumeratedType(String typeName, List<Alternate> alternates) {
super(typeName);
this.alternates = alternates;
}
@Override
public Value fromInput(String token) {
for (Alternate alternate : alternates) {
if (alternate.token.equals(token)) {
return new Value(token, alternate.value);
}
}
return null;
}
@Override
public Value fromValue(String value) {
for (Alternate alternate : alternates) {
if (alternate.value.equals(value)) {
return new Value(alternate.token, value);
}
}
return null;
}
@Override
public String describe(Value defaultValue) {
StringBuffer sb = new StringBuffer();
sb.append("(");
boolean first = true;
for (Alternate alternate : alternates) {
if (first) {
first = false;
} else {
sb.append(",");
}
boolean isDefault = alternate.value.equals(
defaultValue == null ? "" : defaultValue.getText());
if (isDefault) {
sb.append("[");
}
sb.append(alternate.token);
if (isDefault) {
sb.append("]");
}
}
sb.append(")");
return sb.toString();
}
}