/*-
* 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.sling.query.resource;
import java.util.ArrayList;
import java.util.List;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import org.apache.commons.lang.StringUtils;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.query.api.Predicate;
import org.apache.sling.query.resource.jcr.JcrTypeResolver;
import org.apache.sling.query.selector.parser.Attribute;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ResourcePredicate implements Predicate<Resource> {
private static final Logger LOG = LoggerFactory.getLogger(ResourcePredicate.class);
private final String resourceType;
private final String resourceName;
private final List<Predicate<Resource>> subPredicates;
private JcrTypeResolver typeResolver;
public ResourcePredicate(String resourceType, String resourceName, List<Attribute> attributes,
JcrTypeResolver typeResolver) {
this.resourceType = resourceType;
this.resourceName = resourceName;
this.subPredicates = new ArrayList<Predicate<Resource>>();
for (Attribute a : attributes) {
subPredicates.add(new ResourcePropertyPredicate(a));
}
this.typeResolver = typeResolver;
}
@Override
public boolean accepts(Resource resource) {
if (StringUtils.isNotBlank(resourceName) && !resource.getName().equals(resourceName)) {
return false;
}
if (!isResourceType(resource, resourceType)) {
return false;
}
for (Predicate<Resource> predicate : subPredicates) {
if (!predicate.accepts(resource)) {
return false;
}
}
return true;
}
private boolean isResourceType(Resource resource, String resourceType) {
if (StringUtils.isBlank(resourceType)) {
return true;
}
if (resource.isResourceType(resourceType)) {
return true;
}
if (!isValidType(resourceType)) {
return false;
}
Node node = resource.adaptTo(Node.class);
try {
if (node != null) {
return node.isNodeType(resourceType);
}
} catch (RepositoryException e) {
LOG.error("Can't check node type", e);
}
return false;
}
private boolean isValidType(String type) {
return typeResolver.isJcrType(type);
}
}