SharedParamManager.java
package org.apache.synapse.commons.throttle.core;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.commons.throttle.core.internal.ThrottleServiceDataHolder;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class SharedParamManager {
private static Map<String, Long> counters= new ConcurrentHashMap<String, Long>();//Locally managed counters map for non clustered environment
private static Map<String, Long> timestamps = new ConcurrentHashMap<String, Long>();//Locally managed time stamps map for non clustered environment
private static Log log = LogFactory.getLog(SharedParamManager.class.getName());
/**
* Return distributed shared counter for this caller context with given id. If it's not distributed will get from the
* local counter
*
* @param id of the shared counter
* @return shared hazelcast current shared counter
*/
public static long getDistributedCounter(String id) {
if(log.isDebugEnabled()) {
log.debug("GET TIMESTAMP WITH ID " + id);
}
id = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
return distributedCounterManager.getCounter(id);
} else {
Long counter = counters.get(id);
if (counter != null) {
return counter;
} else {
counters.put(id, 0L);
return 0;
}
}
}
/**
* Set distribute counter of caller context of given id to the provided value. If it's not distributed do the same for
* local counter
*
* @param id of the caller context
* @param value to set to the global counter
*/
public static void setDistributedCounter(String id, long value) {
if(log.isDebugEnabled()) {
log.debug("SETTING COUNTER WITH ID " + id);
}
id = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
distributedCounterManager.setCounter(id,value);
} else {
counters.put(id, value);
}
}
/**
* Add given value to the distribute counter of caller context of given id. If it's not
* distributed return local counter
*
* @param id of the caller context
* @param value to set to the global counter
*/
public static long addAndGetDistributedCounter(String id, long value) {
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
id = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
return distributedCounterManager.addAndGetCounter(id, value);
} else {
long currentCount = counters.get(id);
long updatedCount = currentCount + value;
counters.put(id, updatedCount);
return updatedCount;
}
}
/**
* Asynchronously add given value to the distribute counter of caller context of given id. If it's not
* distributed return local counter. This will return global value before add the provided counter
*
* @param id of the caller context
* @param value to set to the global counter
*/
public static long asyncGetAndAddDistributedCounter(String id, long value) {
if(log.isDebugEnabled()) {
log.debug("ASYNC CREATING AND SETTING COUNTER WITH ID " + id);
}
id = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
return distributedCounterManager.asyncGetAndAddCounter(id, value);
} else {
Long currentCount = counters.get(id);
if(currentCount == null) {
currentCount = 0L;
}
long updatedCount = currentCount + value;
counters.put(id, updatedCount);
return currentCount;
}
}
/**
* Asynchronously add given value to the distribute counter of caller context of given id. If it's not
* distributed return local counter. This will return global value before add the provided counter
*
* @param id of the caller context
* @param value to set to the global counter
*/
public static long asyncGetAndAlterDistributedCounter(String id, long value) {
id = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
return distributedCounterManager.asyncGetAndAlterCounter(id,value);
} else {
Long currentCount = counters.get(id);
if(currentCount == null) {
currentCount = 0L;
}
long updatedCount = currentCount + value;
counters.put(id, updatedCount);
return currentCount;
}
}
/**
* Destroy hazelcast global counter, if it's local then remove the map entry
*
* @param id of the caller context
*/
public static void removeCounter(String id) {
if(log.isDebugEnabled()) {
log.debug("REMOVING COUNTER WITH ID " + id);
}
id = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
distributedCounterManager.removeCounter(id);
} else {
counters.remove(id);
}
}
/**
* Return hazelcast shared timestamp for this caller context with given id. If it's not distributed will get from the
* local counter
*
* @param id of the shared counter
* @return shared hazelcast current shared counter
*/
public static long getSharedTimestamp(String id) {
if(log.isDebugEnabled()) {
log.debug("GET TIMESTAMP WITH ID " + id);
}
String key = ThrottleConstants.THROTTLE_TIMESTAMP_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
return distributedCounterManager.getTimestamp(key);
} else {
Long timestamp = timestamps.get(key);
if(timestamp != null) {
return timestamp;
} else {
timestamps.put(key, 0L);
return 0;
}
}
}
/**
* Set distribute timestamp of caller context of given id to the provided value. If it's not distributed do the same for
* local counter
*
* @param id of the caller context
* @param timestamp to set to the global counter
*/
public static void setSharedTimestamp(String id, long timestamp) {
if(log.isDebugEnabled()) {
log.debug("SETTING TIMESTAMP WITH ID" + id);
}
String key = ThrottleConstants.THROTTLE_TIMESTAMP_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
distributedCounterManager.setTimestamp(key, timestamp);
} else {
timestamps.put(id, timestamp);
}
}
/**
* Destroy hazelcast shared timggestamp counter, if it's local then remove the map entry
*
* @param id of the caller context
*/
public static void removeTimestamp(String id) {
if(log.isDebugEnabled()) {
log.debug("REMOVING TIMESTAMP WITH ID " + id);
}
String key = ThrottleConstants.THROTTLE_TIMESTAMP_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
distributedCounterManager.removeTimestamp(key);
} else {
timestamps.remove(key);
}
}
public static void setExpiryTime(String id, long expiryTimeStamp) {
if(log.isDebugEnabled()) {
log.debug("SETTING Expiry WITH ID " + id);
}
String sharedCounterKey = ThrottleConstants.THROTTLE_SHARED_COUNTER_KEY + id;
String sharedTimeStampKey = ThrottleConstants.THROTTLE_TIMESTAMP_KEY + id;
DistributedCounterManager distributedCounterManager =
ThrottleServiceDataHolder.getInstance().getDistributedCounterManager();
if (distributedCounterManager != null && distributedCounterManager.isEnable()) {
distributedCounterManager.setExpiry(sharedCounterKey, expiryTimeStamp);
distributedCounterManager.setExpiry(sharedTimeStampKey, expiryTimeStamp);
}
}
}