AbstractBaseThread.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.resources;

import org.openspcoop2.utils.Utilities;

/**
 * BaseThread
 *  
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public abstract class AbstractBaseThread extends Thread {

    // VARIABILE PER STOP
    private boolean stop = false;
    
    public boolean isStop() {
        return this.stop;
    }

    public void setStop(boolean stop) {
        this.stop = stop;
    }
    
    // VARIABILE PER CONTROLLARE OGNI QUANTO VIENE ESEGUITA LA BUSINESS LOGIC DEL TIMER
    
    private int timeout = 10; // ogni 10 secondi per default
    
    public int getTimeout() {
        return this.timeout;
    }

    public void setTimeout(int timeout) {
        this.timeout = timeout;
    }
    
    // VARIABILE PER CONTROLLARE LO STATO DI VITA
    
    private boolean finished = false;
    
    public void setFinished(boolean finished) {
        this.finished = finished;
    }
    public void finished() {
        this.finished = true;
    }
    public boolean isFinished() {
        return this.finished;
    }
    public void waitShutdown() {
        this.waitShutdown(200, 60000);
    }
    public void waitShutdown(int checkMs, int maxMs) {
        int msWait = 0;
        while(!this.finished && msWait<maxMs) {
            Utilities.sleep(checkMs);
            msWait = msWait + checkMs;
        }
    }
    
    // METODI DI UTILITA
    
    public void sleepForNextCheck(int maxLimitSleepCount, int sleepMs) {
        // CheckInterval
        if(!this.stop){
            int i=0;
            while(i<maxLimitSleepCount){
                Utilities.sleep(sleepMs);
                if(this.isStop()){
                    break; // thread terminato, non lo devo far piu' dormire
                }
                i++;
            }
        }
    }
    

    // RUN

    protected boolean initialize() {
        return true;
    }
    protected abstract void process();
    protected void close() {}
    
    @Override
    public void run(){
        
        try {
            
            if(!this.initialize()) {
                return;
            }
            
            while(!this.isStop()){
                
                this.process();
                
                // CheckInterval
                this.sleepForNextCheck(this.timeout, 1000);
            }
            
        }finally {
            this.finished();
        }
        
        try {
            this.close();
        }catch(Exception t) {
            // ignore
        }
    }

}