/*
* Copyright 2014 WSO2, Inc. http://wso2.com
*
* Licensed 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.synapse.commons.throttle.core;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
/**
* This class is used to keep frequently changing Throttle data. Earlier ConfigurationContext
* was used to keep this data but when properties in the CC are modified concurrently,
* it makes the HashMap to corrupt, leading certain threads to read entries indefinitely.
*/
public class ThrottleDataHolder {
private static final Log log = LogFactory.getLog(ThrottleDataHolder.class);
// This is used for debugging purposes.
private UUID uuid = null;
//
private ConcurrentHashMap<String, CallerContext> callerContextMap =
new ConcurrentHashMap<String, CallerContext>();
private ConcurrentHashMap<String, ThrottleContext> applicationThrottleContexts =
new ConcurrentHashMap<String, ThrottleContext>();
private ConcurrentHashMap<String, ConcurrentAccessController> concurrentAccessControllerMap =
new ConcurrentHashMap<String, ConcurrentAccessController>();
public ThrottleDataHolder() {
if (log.isDebugEnabled()) {
uuid = UUID.randomUUID();
}
log.debug("Created new ThrottleDataHolder " + uuid);
}
public ConcurrentAccessController getConcurrentAccessController(String key) {
return concurrentAccessControllerMap.get(key);
}
public void setConcurrentAccessController(String key,
ConcurrentAccessController concurrentAccessController) {
concurrentAccessControllerMap.put(key, concurrentAccessController);
}
public void removeConcurrentAccessController(String key) {
if (log.isDebugEnabled()) {
log.debug("Removing ConcurrentAccessController for " + key);
}
concurrentAccessControllerMap.remove(key);
}
public ThrottleContext getThrottleContext(String applicationId) {
return applicationThrottleContexts.get(applicationId);
}
public void addThrottleContext(String applicationId, ThrottleContext applicationThrottleContext) {
this.applicationThrottleContexts.put(applicationId,applicationThrottleContext);
}
public void addCallerContext(String id, CallerContext callerContext){
if(log.isDebugEnabled()) {
log.debug("ADD CALLER CONTEXT WITH ID" + id);
}
callerContextMap.put(id, callerContext);
}
public CallerContext getCallerContext(String id){
if(log.isDebugEnabled()) {
log.debug("GET CALLER CONTEXT WITH ID" + id);
}
return callerContextMap.get(id);
}
public void removeCaller(String id) {
if(log.isDebugEnabled()) {
log.debug("REMOVING CALLER CONTEXT WITH ID " + id);
}
callerContextMap.remove(id);
}
}