/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.project.validator;
import java.util.Iterator;
import org.apache.cayenne.access.DataDomain;
import org.apache.cayenne.access.DataNode;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.project.ProjectPath;
import org.apache.cayenne.util.Util;
/**
* Validator for DataMaps.
*
*/
public class DataMapValidator extends TreeNodeValidator {
/**
* Constructor for DataMapValidator.
*/
public DataMapValidator() {
super();
}
@Override
public void validateObject(ProjectPath path, Validator validator) {
DataMap map = (DataMap) path.getObject();
validateName(map, path, validator);
// check if data map is not attached to any nodes
validateNodeLinks(map, path, validator);
}
protected void validateNodeLinks(DataMap map, ProjectPath path, Validator validator) {
DataDomain domain = (DataDomain) path.getObjectParent();
if (domain == null) {
return;
}
boolean unlinked = true;
int nodeCount = 0;
for (final DataNode node : domain.getDataNodes()) {
nodeCount++;
if (node.getDataMaps().contains(map)) {
unlinked = false;
break;
}
}
if(unlinked && nodeCount > 0) {
validator.registerWarning("DataMap is not linked to any DataNodes.", path);
}
}
protected void validateName(DataMap map, ProjectPath path, Validator validator) {
String name = map.getName();
if (Util.isEmptyString(name)) {
validator.registerError("Unnamed DataMap.", path);
return;
}
DataDomain domain = (DataDomain) path.getObjectParent();
if (domain == null) {
return;
}
// check for duplicate names in the parent context
for (final DataMap otherMap : domain.getDataMaps()) {
if (otherMap == map) {
continue;
}
if (name.equals(otherMap.getName())) {
validator.registerError("Duplicate DataMap name: " + name + ".", path);
return;
}
}
}
}