/*
* 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.cache;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.context.CarbonContext;
import org.wso2.carbon.identity.entitlement.PDPConstants;
/**
* Decision cache to handle request against response cache within the cluster.
*/
public class DecisionCache extends EntitlementBaseCache<IdentityCacheKey, String> {
private static Log log = LogFactory.getLog(DecisionCache.class);
public DecisionCache(int timeOut) {
super(PDPConstants.PDP_DECISION_CACHE, timeOut);
}
/**
* Can add decision to the cluster with key
*
* @param key
* @param decision
*/
public void addToCache(String key, String decision) {
if (log.isDebugEnabled()) {
String tenantDomain = CarbonContext.getThreadLocalCarbonContext().getTenantDomain();
int tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
log.debug("DecisionCache is added for tenant : " + tenantDomain + " tenantId : " + tenantId + " " +
"cache key : " + key + " cache value : " + decision);
}
int tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
IdentityCacheKey cacheKey = new IdentityCacheKey(tenantId, key);
addToCache(cacheKey, decision);
}
/**
* Can get the decision for the request if it available in the cache.
*
* @param key
* @return
*/
public String getFromCache(String key) {
if (log.isDebugEnabled()) {
String tenantDomain = CarbonContext.getThreadLocalCarbonContext().getTenantDomain();
int tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
log.debug("DecisionCache is get for tenant : " + tenantDomain + " tenantId : " + tenantId + " " +
"cache key : " + key);
}
int tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
IdentityCacheKey cacheKey = new IdentityCacheKey(tenantId, key);
Object entry = getValueFromCache(cacheKey);
if (entry != null) {
return (String) entry;
}
return null;
}
/**
* Clear all decision cache
*/
public void clearCache() {
if (log.isDebugEnabled()) {
String tenantDomain = CarbonContext.getThreadLocalCarbonContext().getTenantDomain();
int tenantId = CarbonContext.getThreadLocalCarbonContext().getTenantId();
log.debug("DecisionCache clear all cache from the cluster");
}
clear();
}
}