/*
* Copyright (c) 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.policy.finder;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.identity.entitlement.PolicyOrderComparator;
import org.wso2.carbon.identity.entitlement.dto.AttributeDTO;
import org.wso2.carbon.identity.entitlement.dto.PolicyStoreDTO;
import org.wso2.carbon.identity.entitlement.pap.EntitlementAdminEngine;
import org.wso2.carbon.identity.entitlement.pap.store.PAPPolicyStore;
import org.wso2.carbon.identity.entitlement.pap.store.PAPPolicyStoreReader;
import org.wso2.carbon.identity.entitlement.pdp.EntitlementEngine;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Abstract implementation of a policy finder module. This can be easily extended by any module
* that support dynamic policy changes.
*/
public abstract class AbstractPolicyFinderModule implements PolicyFinderModule {
private static Log log = LogFactory.getLog(AbstractPolicyFinderModule.class);
/**
* This method must be called by the module when its policies are updated
*/
public static void invalidateCache(String policyId, String action) {
PAPPolicyStore policyStore = new PAPPolicyStore();
PAPPolicyStoreReader reader = new PAPPolicyStoreReader(policyStore);
EntitlementEngine.getInstance().getPolicyCache().invalidateCache(policyId, action);
EntitlementEngine.getInstance().clearDecisionCache();
}
public static void invalidateCache() {
EntitlementEngine.getInstance().clearDecisionCache();
EntitlementEngine.getInstance().getPolicyCache().invalidateCache();
}
@Override
public String[] getOrderedPolicyIdentifiers() {
log.debug("Start retrieving ordered policy identifiers at : " + new Date());
String[] policyIdentifiers = getPolicyIdentifiers();
if (policyIdentifiers != null && !isPolicyOrderingSupport()) {
PolicyStoreDTO[] policyDTOs = EntitlementAdminEngine.getInstance().
getPolicyStoreManager().getAllPolicyData();
Arrays.sort(policyDTOs, new PolicyOrderComparator());
List<String> list = new ArrayList<String>();
List<String> finalList = new ArrayList<String>();
// 1st put non -order items
list.addAll(Arrays.asList(policyIdentifiers));
for (PolicyStoreDTO dto : policyDTOs) {
list.remove(dto.getPolicyId());
finalList.add(dto.getPolicyId());
}
finalList.addAll(list);
return finalList.toArray(new String[finalList.size()]);
}
log.debug("Finish retrieving ordered policy identifiers at : " + new Date());
return policyIdentifiers;
}
@Override
public String[] getActivePolicies() {
log.debug("Start retrieving active policies at : " + new Date());
List<String> policies = new ArrayList<String>();
String[] policyIdentifiers = getOrderedPolicyIdentifiers();
if (policyIdentifiers != null) {
for (String identifier : policyIdentifiers) {
if (!isPolicyDeActivationSupport()) {
PolicyStoreDTO data = EntitlementAdminEngine.getInstance().
getPolicyDataStore().getPolicyData(identifier);
if (data != null && data.isActive()) {
String policy = getPolicy(identifier);
if (policy != null) {
policies.add(policy);
}
}
} else {
String policy = getPolicy(identifier);
if (policy != null) {
policies.add(policy);
}
}
}
}
log.debug("Finish retrieving active policies at : " + new Date());
return policies.toArray(new String[policies.size()]);
}
@Override
public boolean isDefaultCategoriesSupported() {
return true;
}
@Override
public boolean isPolicyOrderingSupport() {
return false;
}
@Override
public boolean isPolicyDeActivationSupport() {
return false;
}
@Override
public Map<String, Set<AttributeDTO>> getSearchAttributes(String identifier,
Set<AttributeDTO> givenAttribute) {
return null;
}
@Override
public int getSupportedSearchAttributesScheme() {
return 0;
}
/**
* @return
*/
protected abstract String[] getPolicyIdentifiers();
}