/*******************************************************************************
* Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Soyatec - initial API and implementation
*******************************************************************************/
package org.eclipse.papyrus.xwt.converters;
/**
* Default implementation of MultiValueConverter from a string
*
* @author yyang <yesc.yang@soyatec.com>
*
*/
public class StringMultiValueConerter extends AbstractMultiValueConverter {
private String separatorExpression = null;
public Object[] convertBack(Object value) {
if(value instanceof Object[]) {
return (Object[])value;
}
String valueString = value.toString();
return valueString.split(getSeparatorExpression());
}
public String getSeparatorExpression() {
if(separatorExpression == null) {
return "[ \t\r\n]+";
}
return separatorExpression;
}
public void setSeparatorExpression(String separatorExpression) {
this.separatorExpression = separatorExpression;
}
protected String getSeparator() {
if(separatorExpression == null || separatorExpression.length() == 0) {
return " ";
}
return "" + separatorExpression.charAt(0);
}
public Object convert(Object[] value) {
StringBuffer buffer = new StringBuffer();
String separator = getSeparator();
for(int i = 0; i < value.length; i++) {
if(i != 0) {
buffer.append(separator);
}
buffer.append(value[i]);
}
return buffer.toString();
}
public Object getFromType() {
return String[].class;
}
public Object getToType() {
return String.class;
}
}