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/*
* ConsumerQProcessor.java
*
* Created on June 22, 2006, 1:34 PM
*
*/
package com.sun.enterprise.admin.monitor.callflow;
import java.util.Iterator;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.enterprise.admin.common.constant.AdminConstants;
/**
*
* @todo Add logging code
* @todo replace this thread by the ORB Thread Pool Thread
* @author Harpreet Singh
*/
public class ConsumerQProcessor implements Runnable{
BlockingQueue consumerQ;
private DbAccessObject dbAccessObject;
boolean processQ = true;
private int sleepTime = 30000;
private static final Logger logger =
Logger.getLogger(AdminConstants.kLoggerName);
private static final String CONSUMER_SLEEP_TIME =
"com.sun.enterprise.callflow.sleepms";
// special callflow debug flag
boolean traceOn = false;
// handle to the handler chain
private HandlerChain chain;
private long numOfQueuesProcessed = 0;
private long numOfTimesQSlept = 0;
/**
* Creates a new instance of ConsumerQProcessor
*/
public ConsumerQProcessor(BlockingQueue<CallflowProducerQueue> consumerQ,
HandlerChain chain) {
this.consumerQ = consumerQ;
this.chain = chain;
dbAccessObject = DbAccessObjectImpl.getInstance();
traceOn = TraceOnHelper.isTraceOn();
sleepTime = Math.abs(Integer.getInteger(CONSUMER_SLEEP_TIME, 5000));
}
public void stopConsumerThread (){
processQ = false;
if (traceOn){
logger.log (Level.INFO, "Callflow: ConsumerQProcessor.stopConsumerThread ");
}
}
public void run() {
if (traceOn)
logger.log(Level.INFO, "Callflow: ConsumerQProcessor.entering run ");
while (processQ){
if(!consumerQ.isEmpty()){
consume ();
} else{
try {
if (traceOn){
logger.log(Level.INFO, "Callflow: ConsumerQProcessor." +
"Q Empty, sleeping for "+ getSleepTime () +
" ms. Sleeping for the "+getNumOfTimesQSlept()
+ " th time.");
}
this.numOfTimesQSlept++;
Thread.sleep(getSleepTime());
} catch (InterruptedException e){
if (processQ == false){
// do not quit abruptly. Process any items remaining in
// queues before quitting.
if (traceOn)
logger.log(Level.INFO, "Callflow: ConsumerQProcessor." +
"Disable Called, forcing consumption");
break;
}
}
}
}
// force consumption
consume();
if (traceOn){
logger.log(Level.INFO, "Callflow: ConsumerQProcessor.exiting run. "+
" Num of Entries Processed for each table \n"+
this.dbAccessObject.getNumOfRequestsProcessedAsString()
+" \n");
}
}
void consume (){
int noOfQueues = consumerQ.size ();
numOfQueuesProcessed += noOfQueues;
if (traceOn){
logger.log(Level.INFO, "Callflow: ConsumerQProcessor.consume. "+
"ConsumerQ.length ="+ noOfQueues + ". Total number of " +
" Q's Processed = "+ numOfQueuesProcessed);
}
for (int i = 0; i<noOfQueues; i++){
CallflowProducerQueue q = (CallflowProducerQueue) consumerQ.poll();
if (q != null){
if (traceOn){
logger.log(Level.INFO, "Callflow: ConsumerQProcessor.processProducerQ "+
q.getName());
}
TransferObject[] to = q.getAndRemoveAll();
if (to != null){
Handler[] handler = chain.getHandlers();
for (int j=0;j<handler.length;j++ ){
if (traceOn){
logger.log(Level.INFO, "Callflow: ConsumerQProcessor.processProducerQ "+
handler[j]);
}
handler[j].handle(to);
}
}
}
}
}
/**
* consumes the ConsumerQ. Returns the number of Q's processed
*/
// int consume() {
// int noOfQueues = consumerQ.size();
// numOfQueuesProcessed += noOfQueues;
// if (traceOn){
// logger.log(Level.INFO, "Callflow: ConsumerQProcessor.consume. "+
// "ConsumerQ.length ="+ noOfQueues + ". Total number of " +
// " Q's Processed = "+ numOfQueuesProcessed);
// }
// for (int i = 0; i<noOfQueues; i++){
// CallflowProducerQueue q = (CallflowProducerQueue) consumerQ.poll();
// if (q != null)
// processProducerQ(q);
// }
// return noOfQueues;
// }
// void processProducerQ(CallflowProducerQueue q) {
// if (traceOn){
// logger.log (Level.INFO, "Callflow: ConsumerQProcessor.processProducerQ "+
// q.getName ());
// }
// TransferObject[] to = q.getAndRemoveAll();
// if (to != null){
// writeToDb(to, q.getName());
// }
// }
// private void writeToDb(TransferObject[] to, String name) {
// dbAccessObject.insert(to);
// if (traceOn){
// for (int i=0; i<to.length; i++){
// // just display one
// logger.log (Level.INFO, "Writing TO to DB :" +name + " "+
// to[i].getClass().getName() );
// break;
// }
// }
// }
public int getSleepTime() {
return sleepTime;
}
public void setSleepTime(int sleepTime) {
this.sleepTime = sleepTime;
}
public long getNumOfQueuesProcessed() {
return numOfQueuesProcessed;
}
public long getNumOfTimesQSlept() {
return numOfTimesQSlept;
}
public String getCONSUMER_SLEEP_TIME() {
return CONSUMER_SLEEP_TIME;
}
}
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