/**
* Copyright (C) 2010-2014 Morgner UG (haftungsbeschränkt)
*
* This file is part of Structr <http://structr.org>.
*
* Structr 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 3 of the
* License, or (at your option) any later version.
*
* Structr 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 Structr. If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.core.validator;
import org.apache.commons.lang3.StringUtils;
import org.structr.common.SecurityContext;
import org.structr.common.error.EmptyPropertyToken;
import org.structr.common.error.ErrorBuffer;
import org.structr.common.error.FrameworkException;
import org.structr.common.error.PropertyNotFoundToken;
import org.structr.core.GraphObject;
import org.structr.core.PropertyValidator;
import org.structr.core.Result;
import org.structr.core.app.StructrApp;
import org.structr.core.property.PropertyKey;
/**
* A validator that normalizes the given value and ensures it is an
* existing entity of given type.
*
* @author Christian Morgner
*/
public class TypeAndExactNameValidator implements PropertyValidator<String> {
private Class type = null;
public TypeAndExactNameValidator(Class type) {
this.type = type;
}
@Override
public boolean isValid(SecurityContext securityContext, GraphObject object, PropertyKey<String> key, String value, ErrorBuffer errorBuffer) {
if(key == null) {
return false;
}
if (!type.isAssignableFrom(object.getClass())) {
// types are different
return true;
}
if(StringUtils.isBlank(value)) {
errorBuffer.add(object.getType(), new EmptyPropertyToken(key));
return false;
}
// FIXME: search should be case-sensitive!
// just check for existance
try {
Result nodes = StructrApp.getInstance(securityContext).nodeQuery(type).andName(value).getResult();
if(nodes != null && !nodes.isEmpty()) {
return true;
} else {
errorBuffer.add(object.getType(), new PropertyNotFoundToken(key, value));
return false;
}
} catch(FrameworkException fex ) {
// handle error
}
return false;
}
@Override
public boolean requiresSynchronization() {
return true;
}
}