BuilderDatiCollezionatiDistributed.java

/*
 * GovWay - A customizable API Gateway 
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 * 
 * 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
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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package org.openspcoop2.pdd.core.controllo_traffico.policy.driver;

import java.io.Serializable;
import java.util.Date;
import java.util.HashMap;
import java.util.List;

import org.openspcoop2.core.controllo_traffico.beans.ActivePolicy;
import org.openspcoop2.core.controllo_traffico.beans.DatiCollezionati;
import org.openspcoop2.core.controllo_traffico.beans.IDUnivocoGroupByPolicyMapId;
import org.openspcoop2.core.controllo_traffico.driver.PolicyException;
import org.openspcoop2.core.controllo_traffico.driver.PolicyGroupByActiveThreadsType;
import org.openspcoop2.pdd.config.OpenSPCoop2Properties;
import org.openspcoop2.pdd.core.controllo_traffico.policy.PolicyDateUtils;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.hazelcast.HazelcastManager;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.hazelcast.counters.DatiCollezionatiDistributedAtomicLong;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.hazelcast.counters.DatiCollezionatiDistributedAtomicLongAsync;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.hazelcast.counters.DatiCollezionatiDistributedPNCounter;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.redisson.RedissonManager;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.redisson.counters.DatiCollezionatiDistributedLongAdder;
import org.openspcoop2.pdd.core.controllo_traffico.policy.driver.redisson.counters.DatiCollezionatiDistributedRedisAtomicLong;
import org.openspcoop2.pdd.logger.OpenSPCoop2Logger;
import org.openspcoop2.utils.Map;
import org.redisson.api.RedissonClient;
import org.slf4j.Logger;

import com.hazelcast.core.HazelcastInstance;

/**
 * BuilderDatiCollezionatiDistributed
 * 
 * @author Francesco Scarlato (scarlato@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class BuilderDatiCollezionatiDistributed implements Serializable {
    
    // - c config: configuration date
    // - i intervallo: intervallo di validità del contatore
    
    private static final long serialVersionUID = 1L;
    
    public static final String DISTRUBUITED_UPDATE_POLICY_DATE = "-updatePolicyDate-c-";
    public static final String DISTRUBUITED_POLICY_DATE = "-policyDate-c";
    
    public static final String DISTRUBUITED_SUFFIX_CONFIG_DATE = "-c-";
    
    public static final String DISTRUBUITED_INTERVAL_POLICY_REQUEST_COUNTER = "-policyRequestCounter-i-";
    public static final String DISTRUBUITED_INTERVAL_POLICY_COUNTER = "-policyCounter-i-";
    
    public static final String DISTRUBUITED_POLICY_DEGRADO_PRESTAZIONALE_DATE = "-policyDegradoPrestazionaleDate-c-";
    public static final String DISTRUBUITED_INTERVAL_POLICY_DEGRADO_PRESTAZIONALE_COUNTER = "-policyDegradoPrestazionaleCounter-i-";
    public static final String DISTRUBUITED_INTERVAL_POLICY_DEGRADO_PRESTAZIONALE_REQUEST_COUNTER = "-policyDegradoPrestazionaleRequestCounter-i-";
    
    public static final String DISTRUBUITED_ACTIVE_REQUEST_COUNTER = "-activeRequestCounter-c-";
    
    public static final String DISTRUBUITED_INTERVAL_POLICY_DENY_REQUEST_COUNTER = "-policyDenyRequestCounter-i-";
    
    
    public final PolicyGroupByActiveThreadsType tipoPolicy;
    
    private transient HazelcastInstance _hazelcast = null;
    private synchronized void initHazelcast() throws PolicyException {
        if(this._hazelcast==null) {
            this._hazelcast = HazelcastManager.getInstance(this.tipoPolicy);
        }
    }
    public HazelcastInstance getHazelcast() throws RuntimeException{
        if(this._hazelcast==null) {
            try {
                initHazelcast();
            }catch(Exception e) {
                throw new RuntimeException(e.getMessage(),e);
            }
        }
        return this._hazelcast;
    }
    
    private transient RedissonClient _redisson = null;
    private synchronized void initRedisson() throws PolicyException {
        if(this._redisson==null) {
            boolean throwInitializingException = true;
            try {
                this._redisson = RedissonManager.getRedissonClient(throwInitializingException);
            }catch(Exception e) {
                throw new PolicyException(e.getMessage(),e);
            }
        }
    }
    public RedissonClient getRedisson() throws RuntimeException{
        if(this._redisson==null) {
            try {
                initRedisson();
            }catch(Exception e) {
                throw new RuntimeException(e.getMessage(),e);
            }
        }
        return this._redisson;
    }
    
    
    private static final java.util.Map<PolicyGroupByActiveThreadsType, BuilderDatiCollezionatiDistributed> builderCache = new HashMap<>();
    private static final List<PolicyGroupByActiveThreadsType> policyAmmesse = List.of(
            PolicyGroupByActiveThreadsType.HAZELCAST_ATOMIC_LONG, 
            PolicyGroupByActiveThreadsType.HAZELCAST_ATOMIC_LONG_ASYNC,
            PolicyGroupByActiveThreadsType.HAZELCAST_PNCOUNTER,
            PolicyGroupByActiveThreadsType.REDISSON_ATOMIC_LONG,
            PolicyGroupByActiveThreadsType.REDISSON_LONGADDER);
            
    
    private BuilderDatiCollezionatiDistributed(PolicyGroupByActiveThreadsType tipoPolicy) throws PolicyException {
        
        if (!policyAmmesse.contains(tipoPolicy)) {
            throw new PolicyException("Tipo Policy " + tipoPolicy + " non supportato per il BuilderDatiCollezionatiDistributed, utilizzare una delle policyAmmesse.");
        }
        
        this.tipoPolicy = tipoPolicy;
        
        if (tipoPolicy.isHazelcast() ) {
            this._hazelcast = HazelcastManager.getInstance(this.tipoPolicy);
            this._redisson  = null;
        } else {
            boolean throwInitializingException = true;
            try {
                this._redisson = RedissonManager.getRedissonClient(throwInitializingException);
            }catch(Exception e) {
                throw new PolicyException(e.getMessage(),e);
            }
            this._hazelcast = null;
        }
    }
    
    
    public DatiCollezionati build(DatiCollezionati dati, IDUnivocoGroupByPolicyMapId id, ActivePolicy activePolicy) {
        DatiCollezionati ret;
        
        Logger log = OpenSPCoop2Logger.getLoggerOpenSPCoopControlloTraffico(OpenSPCoop2Properties.getInstance().isControlloTrafficoDebug());
        
        switch (this.tipoPolicy) {
        case HAZELCAST_ATOMIC_LONG:
            ret = new DatiCollezionatiDistributedAtomicLong(log, dati, this.getHazelcast(), id, activePolicy);
            break;
        case HAZELCAST_ATOMIC_LONG_ASYNC:
            ret = new DatiCollezionatiDistributedAtomicLongAsync(log, dati, this.getHazelcast(), id, activePolicy);
            break;
        case HAZELCAST_PNCOUNTER:
            ret = new DatiCollezionatiDistributedPNCounter(log, dati, this.getHazelcast(), id, activePolicy);
            break;
        case REDISSON_ATOMIC_LONG:
            ret = new DatiCollezionatiDistributedRedisAtomicLong(log, dati,  this.getRedisson(), id, activePolicy);
            break;
        case REDISSON_LONGADDER:
            ret = new DatiCollezionatiDistributedLongAdder(log, dati, this.getRedisson(), id, activePolicy);
            break;
        default:
            throw new RuntimeException("Tipo Policy" + this.tipoPolicy + " Sconosciuto per il builder. Sono controllati nel costruttore, non dovrebbe mai accadere!");
        }
        
        return ret;
    }
    
    
    public DatiCollezionati build(Date updatePolicyDate, IDUnivocoGroupByPolicyMapId id, ActivePolicy activePolicy, Map<Object> ctx) {
        DatiCollezionati ret;
        
        Logger log = OpenSPCoop2Logger.getLoggerOpenSPCoopControlloTraffico(OpenSPCoop2Properties.getInstance().isControlloTrafficoDebug());
        
        Date gestorePolicyConfigDate = PolicyDateUtils.readGestorePolicyConfigDateIntoContext(ctx);
                
        switch (this.tipoPolicy) {
        case HAZELCAST_ATOMIC_LONG:
            ret = new DatiCollezionatiDistributedAtomicLong(log, updatePolicyDate, gestorePolicyConfigDate, this.getHazelcast(), id, activePolicy);
            break;
        case HAZELCAST_ATOMIC_LONG_ASYNC:
            ret = new DatiCollezionatiDistributedAtomicLongAsync(log, updatePolicyDate, gestorePolicyConfigDate, this.getHazelcast(), id, activePolicy);
            break;
        case HAZELCAST_PNCOUNTER:
            ret = new DatiCollezionatiDistributedPNCounter(log, updatePolicyDate, gestorePolicyConfigDate, this.getHazelcast(), id, activePolicy);
            break;
        case REDISSON_ATOMIC_LONG:
            ret = new DatiCollezionatiDistributedRedisAtomicLong(log, updatePolicyDate, gestorePolicyConfigDate, this.getRedisson(), id, activePolicy);
            break;
        case REDISSON_LONGADDER:
            ret = new DatiCollezionatiDistributedLongAdder(log, updatePolicyDate, gestorePolicyConfigDate, this.getRedisson(), id, activePolicy);
            break;
        default:
            throw new RuntimeException("Tipo Policy" + this.tipoPolicy + " Sconosciuto per il builder. Sono controllati nel costruttore, non dovrebbe mai accadere!");
        }
        
        return ret; 
    }

    
    private static synchronized void initBuilder(PolicyGroupByActiveThreadsType type) throws PolicyException {
        
        var ret = builderCache.get(type);
        if (ret == null) {
            ret = new BuilderDatiCollezionatiDistributed(type);
            builderCache.put(type,  ret);
        }

    }
    public static BuilderDatiCollezionatiDistributed getBuilder(PolicyGroupByActiveThreadsType type) throws PolicyException {
        
        var ret = builderCache.get(type);
        if (ret == null) {
            initBuilder(type);
            ret = builderCache.get(type);
        }

        return ret;
    }
    
    
}