de.thksystems.validation.beanvalidation.AbstractNotEmptyValidator Maven / Gradle / Ivy
/*
* tksCommons / mugwort
*
* Author : Thomas Kuhlmann (ThK-Systems, http://www.thk-systems.de) License : LGPL (https://www.gnu.org/licenses/lgpl.html)
*/
package de.thksystems.validation.beanvalidation;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
public abstract class AbstractNotEmptyValidator {
protected boolean isNotEmpty(Object fieldValue) {
if (fieldValue == null) {
return false;
}
// Check for empty String
if (fieldValue instanceof CharSequence) {
return StringUtils.isNotEmpty((String) fieldValue);
}
// Check for empty Map
if (fieldValue instanceof Map) {
return !((Map) fieldValue).isEmpty();
}
// Check for empty collection
if (fieldValue instanceof Collection) {
return !((Collection) fieldValue).isEmpty();
}
// Check for empty array
if (fieldValue.getClass().isArray()) {
return Array.getLength(fieldValue) > 0;
}
// Any other object that is not null
return true;
}
}