GestoreCodaRunnable.java
- /*
- * GovWay - A customizable API Gateway
- * https://govway.org
- *
- * Copyright (c) 2005-2025 Link.it srl (https://link.it).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3, as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- package org.openspcoop2.utils.threads;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import java.util.Set;
- import java.util.concurrent.ExecutorService;
- import java.util.concurrent.Executors;
- import java.util.concurrent.ThreadPoolExecutor;
- import org.openspcoop2.utils.UtilsException;
- import org.slf4j.Logger;
- /**
- * GestoreCodaRunnable
- *
- *
- * @author Poli Andrea (apoli@link.it)
- * @author $Author$
- * @version $Rev$, $Date$
- */
- public class GestoreCodaRunnable extends BaseThread{
-
- /** Logger utilizzato per debug. */
- private RunnableLogger log = null;
-
- /** ThreadsPool */
- private ExecutorService threadsPool = null;
- private int poolSize = -1;
- private int queueSize = -1;
- private int limit = -1;
- private Map<String, Runnable> threads = new HashMap<>();
-
- /** Instance */
- private IGestoreCodaRunnableInstance gestoreRunnable;
-
- /** Nome */
- private String name;
-
-
- public String getThreadsImage() {
- if(this.threadsPool instanceof ThreadPoolExecutor) {
- ThreadPoolExecutor tpe = (ThreadPoolExecutor) this.threadsPool;
- return
- String.format("(queue:%d) [%d/%d] Active: %d, Completed: %d, Task: %d, isShutdown: %s, isTerminated: %s",
- this.threads.size(),
- tpe.getPoolSize(),
- tpe.getCorePoolSize(),
- tpe.getActiveCount(),
- tpe.getCompletedTaskCount(),
- tpe.getTaskCount(),
- tpe.isShutdown(),
- tpe.isTerminated());
- }
- return null;
- }
-
-
- /** Costruttore */
- public GestoreCodaRunnable(String name, int poolSize, int queueSize, int limit, int timeoutNextCheck, IGestoreCodaRunnableInstance gestoreRunnable, Logger log) throws UtilsException{
-
- this.name = name;
- this.log = new RunnableLogger(name, log);
- this.gestoreRunnable = gestoreRunnable;
-
- try {
- if(this.gestoreRunnable!=null) {
- this.gestoreRunnable.initialize(this.log);
- }
- }catch(Throwable t) {
- throw new UtilsException(t.getMessage(),t);
- }
- try {
- this.poolSize = poolSize;
- if(this.poolSize>0) {
- this.threadsPool = Executors.newFixedThreadPool(this.poolSize);
- this.log.info("Inizializzato correttamente");
- }
- else {
- this.log.error("Non sono stati definiti threads");
- }
-
- this.queueSize = queueSize;
- if(this.queueSize<=0) {
- this.log.error("Non è stata definita la dimensione della coda");
- }
-
- this.limit = limit;
- if(this.limit<=0) {
- this.log.error("Non è stata definito il limite di quanti thread creare per volta");
- }
-
- this.setTimeout(timeoutNextCheck);
- if(this.limit<=0) {
- this.log.error("Non è stata definito il timeout di attesa prima di verificare la presenza di nuovi threads da attivare");
- }
-
- }catch(Exception e) {
- throw new UtilsException("Inizializzazione pool di threads non riuscita: "+e.getMessage(),e);
- }
-
-
- }
-
- @Override
- public void process(){
- // nop: ho ridefinito il metodo run
- }
-
- @Override
- public void run(){
-
- try {
-
- if(this.threadsPool==null) {
- return; // termino subito
- }
-
- HashMap<String, Object> context = new HashMap<>();
- this.gestoreRunnable.logCheckInProgress(context);
-
- while(this.isStop() == false) {
-
- // Print actual image status
- this.log.info("Immagine prima del controllo sui threads terminati: "+this.getThreadsImage());
-
- // Verifico se nella tabella dei threads registrati vi sono thread terminati
- if(!this.threads.isEmpty()) {
- this.log.debug("Verifico se tra i threads registrati ve ne sono alcuni terminati ...");
- List<String> ids = new ArrayList<>();
- ids.addAll(this.threads.keySet());
- for (String id : ids) {
- Runnable r = this.threads.get(id);
- if(r.isFinished()) {
- this.log.debug("Elimino dalla coda thread '"+id+"' terminato");
- this.threads.remove(id);
- }
- }
- }
-
- // Print actual image status
- this.log.info("Immagine dopo il controllo sui threads terminati: "+this.getThreadsImage());
-
- // Se vi è la possibilità di inserire in coda nuovi threads lo faccio
- int limit = this.queueSize - this.threads.size();
- boolean sleep = false;
- if(limit>0) {
- if(limit>this.limit) {
- limit = this.limit;
- }
- this.log.info("Ricerco nuovi threads da attivare (limit: "+limit+") ...");
- List<Runnable> list_nextRunnable = null;
- try {
- list_nextRunnable = this.gestoreRunnable.nextRunnable(limit);
- }catch(Throwable t) {
- this.log.error("Errore durante la ricerca di nuovi threads (limit: "+limit+"): "+t.getMessage(),t);
- }
- if(list_nextRunnable!=null && !list_nextRunnable.isEmpty()) {
- this.log.info("Trovati "+list_nextRunnable.size()+" threads da attivare");
- for (Runnable thread : list_nextRunnable) {
- String threadName = this.name+"-t"+getUniqueSerialNumber();
- if(thread.getIdentifier()!=null && !"".equals(thread.getIdentifier())) {
- threadName = threadName+"-"+thread.getIdentifier();
- }
- try {
- this.log.debug("Aggiungo in coda nuovo thread '"+threadName+"' ...");
- thread.initialize(new RunnableLogger(threadName,this.log.getLog()));
- this.threadsPool.execute(thread);
- this.threads.put(threadName, thread);
- this.log.info("Thread '"+threadName+"' aggiunto in coda");
- }catch(Throwable t) {
- this.log.error("Errore durante l'aggiunta in coda del thread '"+threadName+"': "+t.getMessage(),t);
- }
- }
-
- // Print actual image status
- this.log.info("Immagine dopo l'inserimento in coda dei nuovi threads: "+this.getThreadsImage());
-
- this.gestoreRunnable.logRegisteredThreads(context, list_nextRunnable.size());
- }
- else {
- this.log.info("Trovati "+0+" threads da attivare");
- sleep = true;
- }
- }
- else {
- this.log.info("La coda dei threads ha raggiunto la capacità massima (size: "+this.queueSize+")");
- sleep = true;
- }
-
- if(sleep) {
-
- this.gestoreRunnable.logCheckFinished(context);
-
- this.sleepForNextCheck(this.getTimeout(), 1000);
-
- context = new HashMap<>();
- this.gestoreRunnable.logCheckInProgress(context);
- }
- }
-
-
- try {
- this.log.debug("Richiedo sospensione threads ...");
- // Fermo threads
- Set<String> keySet = this.threads.keySet();
- for (String threadName : keySet) {
- Runnable thread = this.threads.get(threadName);
- thread.setStop(true);
- }
- }catch(Throwable t) {
- this.log.error("Errore durante lo stop dei threads: "+t.getMessage(),t);
- }
-
- try{
- // Attendo chiusura dei threads
- int timeout = 10;
- boolean terminated = false;
- while(terminated == false){
- this.log.info((this.threads.size())+" threads avviati correttamente, attendo terminazione (timeout "+timeout+"s) ...");
- for (int i = 0; i < timeout*4; i++) {
- boolean tmpTerminated = true;
- Set<String> keySet = this.threads.keySet();
- for (String threadName : keySet) {
- Runnable thread = this.threads.get(threadName);
- if(thread.isFinished()==false){
- tmpTerminated = false;
- break;
- }
- }
- if(tmpTerminated==false){
- org.openspcoop2.utils.Utilities.sleep(250);
- }
- else{
- terminated = true;
- }
- }
- }
- this.log.info((this.threads.size())+" threads avviati correttamente, attesa della terminazione (timeout "+timeout+"s) completata");
-
- }catch(Exception e){
- this.log.error("Errore durante l'attesa della terminazione dei threads: "+e.getMessage(),e);
- }finally{
- }
-
- }finally {
- this.finished();
- }
-
- }
-
- private long uniqueSerialNumber = 0;
- private synchronized long getUniqueSerialNumber(){
- if((this.uniqueSerialNumber+1) > Long.MAX_VALUE){
- this.uniqueSerialNumber = 0;
- }
- this.uniqueSerialNumber++;
- return this.uniqueSerialNumber;
- }
- }