/*
* Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.wso2.carbon.identity.entitlement.pip;
import org.wso2.balana.ctx.EvaluationCtx;
import org.wso2.carbon.context.CarbonContext;
import org.wso2.carbon.identity.entitlement.internal.EntitlementServiceComponent;
import org.wso2.carbon.registry.api.Resource;
import org.wso2.carbon.registry.core.Collection;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
/**
* This is the default implementation of the PIPResourceFinder. DefaultResourceFinder finds the resources
* of the underline registry
*/
public class DefaultResourceFinder implements PIPResourceFinder {
private Registry registry;
@Override
public void init(Properties properties) throws Exception {
}
@Override
public String getModuleName() {
return "Default Resource Finder";
}
@Override
public Set<String> findDescendantResources(String parentResourceId, EvaluationCtx context) throws Exception {
Set<String> resourceSet = new HashSet<String>();
registry = EntitlementServiceComponent.getRegistryService().getSystemRegistry(CarbonContext.
getThreadLocalCarbonContext().getTenantId());
if (registry.resourceExists(parentResourceId)) {
Resource resource = registry.get(parentResourceId);
if (resource instanceof Collection) {
Collection collection = (Collection) resource;
String[] resources = collection.getChildren();
for (String res : resources) {
resourceSet.add(res);
getChildResources(res, resourceSet);
}
} else {
return null;
}
}
return resourceSet;
}
@Override
public Set<String> findChildResources(String parentResourceId, EvaluationCtx context) throws Exception {
return null;
}
@Override
public boolean overrideDefaultCache() {
return false;
}
@Override
public void clearCache() {
}
/**
* This helps to find resources un a recursive manner
*
* @param parentResource parent resource Name
* @param childResources child resource set
* @return child resource set
* @throws RegistryException throws
*/
private Set<String> getChildResources(String parentResource, Set<String> childResources)
throws RegistryException {
Resource resource = registry.get(parentResource);
if (resource instanceof Collection) {
Collection collection = (Collection) resource;
String[] resources = collection.getChildren();
for (String res : resources) {
childResources.add(res);
getChildResources(res, childResources);
}
}
return childResources;
}
}