/**
* Copyright (C) 2012 BonitaSoft S.A.
* BonitaSoft, 32 rue Gustave Eiffel - 38000 Grenoble
* This program 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 2.0 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.bonitasoft.web.toolkit.client.data.item.attribute.reader;
import org.bonitasoft.web.toolkit.client.data.item.IItem;
/**
* @author Colin PUY
*
*/
public class FixedLengthReader extends AbstractAttributeReader {
private int maxLength;
public FixedLengthReader(String attributeToRead, int maxLength) {
super(attributeToRead);
if (maxLength < 0) {
throw new IllegalArgumentException("maxLength must be a positive value");
}
this.maxLength = maxLength;
}
@Override
protected String _read(IItem item) {
String value = item.getAttributeValue(getLeadAttribute());
if (value != null && value.length() > maxLength) {
return cutValueAndAddEllipsis(value);
}
return value;
}
private String cutValueAndAddEllipsis(String value) {
if (maxLength > 3) {
return value.substring(0, maxLength - 3) + "...";
}
return value.substring(0, maxLength);
}
}