org.crsh.cmdline.spi.Value Maven / Gradle / Ivy
/*
* Copyright (C) 2010 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.cmdline.spi;
import java.util.StringTokenizer;
/**
* A typed string, this class should be extended to provide meta information about a string and provide type safety.
* This class is immutable and so should be its subclasses.
*
* @author Julien Viet
* @version $Revision$
*/
public abstract class Value {
public static class Properties extends Value {
public Properties(String string) throws NullPointerException {
super(string);
}
public java.util.Properties getProperties() {
java.util.Properties props = new java.util.Properties();
StringTokenizer tokenizer = new StringTokenizer(getString(), ";", false);
while(tokenizer.hasMoreTokens()){
String token = tokenizer.nextToken();
if(token.contains("=")) {
String key = token.substring(0, token.indexOf('='));
String value = token.substring(token.indexOf('=') + 1, token.length());
props.put(key, value);
}
}
return props;
}
}
/** . */
private final String string;
/**
* The only constructors that accepts a string.
*
* @param string the string value
* @throws NullPointerException if the string is null
*/
public Value(String string) throws NullPointerException {
if (string == null) {
throw new NullPointerException("No null string accepted");
}
this.string = string;
}
@Override
public int hashCode() {
return getClass().hashCode() ^ string.hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
} else if (obj != null && obj.getClass().equals(getClass())) {
Value that = (Value)obj;
return string.equals(that.string);
}
return false;
}
/**
* Returns the string value.
*
* @return the string value
*/
public final String getString() {
return string;
}
@Override
public final String toString() {
return string;
}
}