UDPTimeDate.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.date;
- import java.net.InetAddress;
- import java.sql.Timestamp;
- import java.util.Calendar;
- import java.util.Date;
- import java.util.GregorianCalendar;
- import java.util.Map;
- import java.util.concurrent.ConcurrentHashMap;
- import org.apache.commons.net.time.TimeUDPClient;
- import org.openspcoop2.utils.SemaphoreLock;
- import org.openspcoop2.utils.UtilsException;
- /**
- * Classe per la produzione di date utilizzando un server TimeUDP
- *
- * @author Poli Andrea (apoli@link.it)
- * @author $Author$
- * @version $Rev$, $Date$
- */
- public class UDPTimeDate implements IDate {
- private static InetAddress server = null;
- private static TimeUDPClient udpClient = null;
- private static int defaultTimeout = -1;
- private static Map<String,Date> time = null;
- private static boolean cacheEnabled = true;
- private static int cacheRefresh = 100;
-
- private static org.openspcoop2.utils.Semaphore semaphore = new org.openspcoop2.utils.Semaphore("UDPTimeDate");
-
- private static Date getDateCached() throws Exception{
-
- if(UDPTimeDate.cacheEnabled==false){
- return UDPTimeDate.udpClient.getDate(UDPTimeDate.server);
- }
- else{
- String key = (System.currentTimeMillis() / (UDPTimeDate.cacheRefresh)) + ""; // al massimo vengono eseguite 10 richieste al secondo.
- if(UDPTimeDate.time.containsKey(key)){
- //System.out.println("NOW ["+key+"] from cache");
- return UDPTimeDate.time.get(key);
- }else{
- //synchronized(UDPTimeDate.time){
- SemaphoreLock lock = semaphore.acquire("getDateCached");
- try {
- if(UDPTimeDate.time.containsKey(key)){
- //System.out.println("NOW ["+key+"] from cache sync");
- return UDPTimeDate.time.get(key);
- }else{
- //System.out.println("NOW ["+key+"] no cache");
- Date d = UDPTimeDate.udpClient.getDate(UDPTimeDate.server);
- UDPTimeDate.time.clear();
- UDPTimeDate.time.put(key, d);
- return d;
- }
- }finally {
- semaphore.release(lock, "getDateCached");
- }
- }
- }
- }
-
-
- /**
- * Impostazione delle proprieta' per il DateManager
- */
- @Override
- public void init(java.util.Properties properties) throws UtilsException{
- _init(properties);
- }
-
- private static void _init(java.util.Properties properties) throws UtilsException{
- if(UDPTimeDate.udpClient==null) {
- _initSync(properties);
- }
- }
- private static synchronized void _initSync(java.util.Properties properties) throws UtilsException{
- if(UDPTimeDate.udpClient!=null) {
- return;
- }
- try{
- UDPTimeDate.udpClient = new TimeUDPClient();
-
- // timeout
- String timeoutS = properties.getProperty("time.timeout");
- if(timeoutS!=null){
- try{
- UDPTimeDate.defaultTimeout = Integer.parseInt(timeoutS);
- }catch(Exception e){
- throw new Exception("org.openspcoop.pdd.date.property.time.timeout value non valido: "+e.getMessage(),e);
- }
- }
- if(UDPTimeDate.defaultTimeout!=-1)
- UDPTimeDate.udpClient.setDefaultTimeout(UDPTimeDate.defaultTimeout);
-
- // ipaddress
- String ipaddressS = properties.getProperty("time.server");
- if(ipaddressS==null)
- throw new Exception("org.openspcoop.pdd.date.property.time.server value non definito");
- if(ipaddressS!=null){
- try{
- UDPTimeDate.server = InetAddress.getByName(ipaddressS);
- }catch(Exception e){
- throw new Exception("org.openspcoop.pdd.date.property.time.server value non valido: "+e.getMessage(),e);
- }
- }
-
- // cache
- String cacheS = properties.getProperty("time.cache.enable");
- if(cacheS!=null){
- try{
- UDPTimeDate.cacheEnabled = Boolean.parseBoolean(cacheS);
- }catch(Exception e){
- throw new Exception("org.openspcoop.pdd.date.property.time.cache.enable non valido: "+e.getMessage(),e);
- }
- }
-
- // intervallo cache refresh
- String cacheRefreshS = properties.getProperty("time.cache.refresh");
- if(cacheRefreshS!=null){
- try{
- int value = Integer.parseInt(cacheRefreshS);
- if(value>1000)
- throw new Exception("Valore deve essere minore di 1000");
- UDPTimeDate.cacheRefresh = 1000 / value;
- }catch(Exception e){
- throw new Exception("org.openspcoop.pdd.date.property.time.cache.refresh non valido: "+e.getMessage(),e);
- }
- }
-
- UDPTimeDate.udpClient.open();
-
- UDPTimeDate.time = new ConcurrentHashMap<String,Date>();
-
- }catch(Exception e){
- UDPTimeDate.udpClient=null;
- throw new UtilsException("Inizializzazione TimeUDP Client (properties) non riuscita: "+e.getMessage(),e);
- }
- }
-
- /**
- * Close il DataManager
- *
- * @throws UtilsException
- */
- @Override
- public void close() throws UtilsException{
- try{
- if(UDPTimeDate.udpClient!=null)
- UDPTimeDate.udpClient.close();
- }catch(Exception e){
- throw new UtilsException("Chiusura TimeUDP Client non riuscita: "+e.getMessage(),e);
- }
- }
-
- /**
- * Ritorna la data corrente.
- *
- * @return Data corrente
- */
- @Override
- public Date getDate() throws UtilsException{
- try{
- if(UDPTimeDate.udpClient==null)
- throw new Exception("Inizializzazione non effettuata, invocare metodo init");
-
- //System.out.println("UDP getDate ("+UDPTimeDate.getDateCached()+")");
- return UDPTimeDate.getDateCached();
-
- }catch(Exception e){
- throw new UtilsException("getDate error: "+e.getMessage(),e);
- }
- }
-
- /**
- * Ritorna la data corrente in millisecondi da Gennaio 1.4970.
- *
- * @return Data corrente
- */
- @Override
- public long getTimeMillis()throws UtilsException {
- try{
- if(UDPTimeDate.udpClient==null)
- throw new Exception("Inizializzazione non effettuata, invocare metodo init");
-
- //System.out.println("UDP getTime ("+UDPTimeDate.getDateCached().getTime()+")");
- return UDPTimeDate.getDateCached().getTime();
-
- }catch(Exception e){
- throw new UtilsException("getDate error: "+e.getMessage(),e);
- }
- }
-
- /**
- * Ritorna la data corrente come timestamp SQL.
- *
- * @return Data corrente
- */
- @Override
- public Timestamp getTimestamp() throws UtilsException{
- try{
- if(UDPTimeDate.udpClient==null)
- throw new Exception("Inizializzazione non effettuata, invocare metodo init");
-
- //System.out.println("UDP getTimestamp ("+new Timestamp(UDPTimeDate.getDateCached().getTime())+")");
- return new Timestamp(UDPTimeDate.getDateCached().getTime());
-
- }catch(Exception e){
- throw new UtilsException("getDate error: "+e.getMessage(),e);
- }
- }
-
- /**
- * Ritorna la data corrente come Calendar
- *
- * @return Data corrente
- */
- @Override
- public Calendar getCalendar() throws UtilsException{
- Calendar c = new GregorianCalendar();
- c.setTime(this.getDate());
- return c;
- }
- }