BrokerParameters.java

/*
** Module   : BrokerParameters.java
** Abstract : broker parameters storage.
**
** Copyright (c) 2014-2023, Golden Code Development Corporation.

**
** -#- -I- --Date-- ---------------------------------Description----------------------------------
** 001 MAG 20140707 Implements remote launcher (broker).
** 002 SBI 20171022 Added agentAddress and associatedUser.
** 003 SBI 20230411 Changed getAgentAddress() to return host name or IP address string presentation.
** 004 GBB 20230512 Logging methods replaced by CentralLogger/ConversionStatus.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** 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 Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
** 
** Additional terms under GNU Affero GPL version 3 section 7:
** 
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
** 
**   0. Attribution Requirement.
** 
**     You must preserve all legal notices or author attributions in the covered
**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
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*/

package com.goldencode.p2j.main;

import java.util.concurrent.*;
import java.util.logging.*;

import com.goldencode.p2j.net.Session;
import com.goldencode.p2j.util.logging.*;

/**
 * Broker parameters storage.
 */
public class BrokerParameters
{
   /** Logger. */
   private static final CentralLogger LOG = CentralLogger.get(BrokerParameters.class.getName());
   
   /** Broker UUID */
   private String uuid;
   
   /** P2J process account ID */
   private String userId;
   
   /** Broker name associated to process account */
   private String brokerName;
   
   /** Broker client side services */
   private BrokerClientServices remote;
   
   /** P2J session */
   private Session session;
         
   /** Keep connection between server and broker open */
   private CountDownLatch ready;
   
   /** The remote broker client address: host name or IP address */
   private String agentAddress;
   
   /** The user account name associated with this broker client */
   private String associatedUser;
   
   /** Broker state */
   private volatile BrokerState state = BrokerState.CLOSE;

   /**
    * Return assigned UUID.
    * 
    * @return  Assigned UUID.
    */
   public String getUuid()
   {
      return uuid;
   }

   /**
    * Set assigned UUID.
    * 
    * @param   uuid
    *          Assigned UUID.
    */
   public void setUuid(String uuid)
   {
      this.uuid = uuid;
   }

   /**
    * Get user id.
    * 
    * @return  User id.
    */
   public String getUserId()
   {
      return userId;
   }

   /**
    * Set user id.
    * 
    * @param   userId
    *          User id.
    */
   public void setUserId(String userId)
   {
      this.userId = userId;
   }

   /**
    * Get broker name.
    * 
    * @return  Broker name.
    */
   public String getBrokerName()
   {
      return brokerName;
   }

   /**
    * Set broker name.
    * 
    * @param   brokerName
    *          Broker name.
    */
   public void setBrokerName(String brokerName)
   {
      this.brokerName = brokerName;
   }

   /**
    * Get remote proxy interface.
    * 
    * @return  Remote interface.
    */
   public BrokerClientServices getRemote()
   {
      return remote;
   }

   /**
    * Set remote proxy interface.
    * 
    * @param   remote
    *          Remote proxy interface.
    */
   public void setRemote(BrokerClientServices remote)
   {
      this.remote = remote;
   }

   /**
    * Get P2J broker session.
    * 
    * @return  P2J broker session.
    */
   public Session getSession()
   {
      return session;
   }

   /**
    * Set P2J broker session.
    * 
    * @param   session
    *          P2J broker session.
    */
   public void setSession(Session session)
   {
      this.session = session;
   }

   /**
    * Return broker state.
    * 
    * @return  broker state.
    */
   public BrokerState getState()
   {
      return state;
   }

   /**
    * Gets the remote broker client address
    * 
    * @return   The remote broker client address
    */
   public String getAgentAddress()
   {
      return agentAddress;
   }

   /**
    * Sets the remote broker client address.
    * 
    * @param    agentAddress
    *           The remote broker client address
    */
   public void setAgentAddress(String agentAddress)
   {
      this.agentAddress = agentAddress;
   }

   /**
    * Gets the user account name associated with this broker client.
    * 
    * @return   The user account name associated with this broker client
    */
   public String getAssociatedUser()
   {
      return associatedUser;
   }

   /**
    * Sets the user account name associated with this broker client.
    * 
    * @param    associatedUser
    *           The user account name associated with this broker client
    */
   public void setAssociatedUser(String associatedUser)
   {
      this.associatedUser = associatedUser;
   }

   /**
    * Returns a hash code value for the object. 
    *
    * @return  a hash code value for this object.
    */
   @Override
   public int hashCode()
   {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((uuid == null) ? 0 : uuid.hashCode());
      return result;
   }

   /**
    * Indicates whether some other object is "equal to" this one.
    *
    * @param   obj   
    *          the reference object with which to compare.
    *          
    * @return  {@code true} if this object is the same as the obj
    *          argument; {@code false} otherwise.
    */
   @Override
   public boolean equals(Object obj)
   {
      if (this == obj)
         return true;
      if (obj == null)
         return false;
      if (getClass() != obj.getClass())
         return false;
      BrokerParameters other = (BrokerParameters) obj;
      if (uuid == null)
      {
         if (other.uuid != null)
            return false;
      } else if (!uuid.equals(other.uuid))
         return false;
      return true;
   }
   
   /**
    * Arms latch and wait until session is closed.
    */
   void open()
   {
      try
      {
         // if latch is armed
         close();
         
         state = BrokerState.OPEN;
         
         ready = new CountDownLatch(1);
         ready.await();
         
         state = BrokerState.CLOSE;
      } 
      catch (InterruptedException e)
      {
         state = BrokerState.INTERRUPTED;
         
         LOG.logp(Level.INFO,
                  "BrokerParameters.open()",
                  "",
                  "Interrupted.",
                  e);         
      }
   }   

   /**
    * Reset latch on session close.
    */
   void close()
   {
      if (ready != null && ready.getCount() > 0)
      {
         ready.countDown();
      }
   }
}