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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License. You
 * may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License. See accompanying
 * LICENSE file.
 */
package com.gemstone.gemfire.internal.cache.wan;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock;

import com.gemstone.gemfire.CancelException;
import com.gemstone.gemfire.DataSerializer;
import com.gemstone.gemfire.cache.asyncqueue.AsyncEventListener;
import com.gemstone.gemfire.cache.util.Gateway.OrderPolicy;
import com.gemstone.gemfire.cache.wan.GatewayTransportFilter;
import com.gemstone.gemfire.distributed.DistributedLockService;
import com.gemstone.gemfire.distributed.internal.DistributionAdvisee;
import com.gemstone.gemfire.distributed.internal.DistributionAdvisor;
import com.gemstone.gemfire.distributed.internal.DistributionManager;
import com.gemstone.gemfire.distributed.internal.InternalDistributedSystem;
import com.gemstone.gemfire.distributed.internal.ServerLocation;
import com.gemstone.gemfire.distributed.internal.locks.DLockService;
import com.gemstone.gemfire.distributed.internal.membership.InternalDistributedMember;
import com.gemstone.gemfire.i18n.LogWriterI18n;
import com.gemstone.gemfire.internal.Assert;
import com.gemstone.gemfire.internal.InternalDataSerializer;
import com.gemstone.gemfire.internal.LogWriterImpl;
import com.gemstone.gemfire.internal.VersionedDataSerializable;
import com.gemstone.gemfire.internal.cache.GemFireCacheImpl;
import com.gemstone.gemfire.internal.cache.UpdateAttributesProcessor;
import com.gemstone.gemfire.internal.cache.wan.serial.SerialGatewaySenderImpl;
import com.gemstone.gemfire.internal.i18n.LocalizedStrings;
import com.gemstone.gemfire.internal.shared.Version;

public class GatewaySenderAdvisor extends DistributionAdvisor {

  private DistributedLockService lockService;
  
  private volatile boolean isPrimary;
  
  private final Object primaryLock = new Object();
  
  private final String lockToken;
  
  private Thread lockObtainingThread;
  
  private final ThreadGroup threadGroup = 
    LogWriterImpl.createThreadGroup("GatewaySenderAdvisor Threads", (LogWriterI18n)null);
  
  private final AbstractGatewaySender sender;
  
  private final LogWriterI18n logger;
  
  private GatewaySenderAdvisor(DistributionAdvisee sender, LogWriterI18n logger) {
    super(sender);
    this.sender = (AbstractGatewaySender)sender;
    this.logger = logger;
    this.lockToken = getDLockServiceName() + "-token";
  }
  
  public static GatewaySenderAdvisor createGatewaySenderAdvisor(DistributionAdvisee sender, LogWriterI18n logger) {
    GatewaySenderAdvisor advisor = new GatewaySenderAdvisor(sender, logger);
    advisor.initialize();
    return advisor;
  }

  public String getDLockServiceName(){
    return getClass().getName() + "_" + this.sender.getId();
  }
  
  public Thread getLockObtainingThread() {
    return this.lockObtainingThread;
  }
  /** Instantiate new Sender profile for this member */
  @Override
  protected Profile instantiateProfile(InternalDistributedMember memberId,
      int version) {
    return new GatewaySenderProfile(memberId, version);
  }

  /**
   * The profile will be created when the sender is added to the cache. here we
   * are not starting the sender. so we should not release or acquire any lock
   * for the sender to become primary based on creation only.
   */
  @Override
  public void profileCreated(Profile profile) {
    if (profile instanceof GatewaySenderProfile) {
      GatewaySenderProfile sp = (GatewaySenderProfile)profile;
      checkCompatibility(sp);
      // also update the profiles of affected regions
    }
  }

  private void checkCompatibility(GatewaySenderProfile sp) {
    if (sp.remoteDSId != sender.getRemoteDSId()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_REMOTE_DS_ID_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_2_REMOTE_DS_ID
              .toString(new Object[] { sp.Id, sp.remoteDSId, sender.remoteDSId }));
    }
    if (sp.isParallel && !sender.isParallel()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_AS_PARALLEL_GATEWAY_SENDER_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_AS_SERIAL_GATEWAY_SENDER
              .toString(new Object[] { sp.Id }));
    }
    if (!sp.isParallel && sender.isParallel()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_AS_SERIAL_GATEWAY_SENDER_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_AS_PARALLEL_GATEWAY_SENDER
              .toString(new Object[] { sp.Id }));
    }

    if (sp.isBatchConflationEnabled != sender.isBatchConflationEnabled()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_IS_BACTH_CONFLATION_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_IS_BATCH_CONFLATION_2
              .toString(new Object[] { sp.Id, sp.isBatchConflationEnabled,
                  sender.isBatchConflationEnabled() }));
    }
    if (sp.isPersistenceEnabled != sender.isPersistenceEnabled()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_IS_PERSISTENT_ENABLED_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_IS_PERSISTENT_ENABLED_2
              .toString(new Object[] { sp.Id, sp.isPersistenceEnabled,
                  sender.isPersistenceEnabled() }));
    }
    if (sp.alertThreshold != sender.getAlertThreshold()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_ALERT_THRESHOLD_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_ALERT_THRESHOLD_2
              .toString(new Object[] { sp.Id, sp.alertThreshold,
                  sender.getAlertThreshold() }));
    }
    if (!sender.isParallel()) {
      if (sp.manualStart != sender.isManualStart()) {
        throw new IllegalStateException(
            LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_MANUAL_START_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_MANUAL_START_2
                .toString(new Object[] { sp.Id, sp.manualStart,
                    sender.isManualStart() }));
      }
    }
    //it should be fine as it is jvm specific
    /*if(sp.dispatcherThreads != sender.getDispatcherThreads()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_DISPATCHER_THREAD_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_DISPATCHER_THREAD_2
              .toString(new Object[] { sp.Id, sp.dispatcherThreads,
                  sender.getDispatcherThreads() }));
    }*/
    
    if(sp.orderPolicy != sender.getOrderPolicy()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_CANNOT_CREATE_GATEWAYSENDER_0_WITH_ORDER_POLICY_1_BECAUSE_ANOTHER_CACHE_HAS_THE_SAME_SENDER_WITH_ORDER_POLICY_2
              .toString(new Object[] { sp.Id, sp.orderPolicy,
                  sender.getOrderPolicy() }));
    }

    List senderEventFilterClassNames = new ArrayList();
    for (com.gemstone.gemfire.cache.wan.GatewayEventFilter filter : sender
        .getGatewayEventFilters()) {
      senderEventFilterClassNames.add(filter.getClass().getName());
    }
    if (sp.eventFiltersClassNames.size() != senderEventFilterClassNames.size()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_GATEWAY_EVENT_FILTERS_MISMATCH
              .toString(new Object[] { sp.Id, sp.eventFiltersClassNames,
                  senderEventFilterClassNames }));
    }
    else {
      for(String filterName : senderEventFilterClassNames){
        if(!sp.eventFiltersClassNames.contains(filterName)){
          throw new IllegalStateException(
              LocalizedStrings.GatewaySenderAdvisor_GATEWAY_EVENT_FILTERS_MISMATCH
                  .toString(new Object[] { sp.Id, sp.eventFiltersClassNames,
                      senderEventFilterClassNames }));
        }
      }
    }
    
    Set senderTransportFilterClassNames = new LinkedHashSet();
    for (GatewayTransportFilter filter : sender
        .getGatewayTransportFilters()) {
      senderTransportFilterClassNames.add(filter.getClass().getName());
    }
    if (sp.transFiltersClassNames.size() != senderTransportFilterClassNames.size()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_GATEWAY_TRANSPORT_FILTERS_MISMATCH
              .toString(new Object[] { sp.Id, sp.transFiltersClassNames,
                  senderTransportFilterClassNames }));
    }
    else {
      Iterator i1 = sp.transFiltersClassNames.iterator();
      Iterator i2 = senderTransportFilterClassNames.iterator();
      while(i1.hasNext() && i2.hasNext()){
        if(!i1.next().equals(i2.next())){
          throw new IllegalStateException(
              LocalizedStrings.GatewaySenderAdvisor_GATEWAY_TRANSPORT_FILTERS_MISMATCH
                  .toString(new Object[] { sp.Id, sp.transFiltersClassNames,
                      senderTransportFilterClassNames }));    
        }
      }
    }
    List senderEventListenerClassNames = new ArrayList();
    for (AsyncEventListener listener : sender
        .getAsyncEventListeners()) {
      senderEventListenerClassNames.add(listener.getClass().getName());
    }
    if (sp.senderEventListenerClassNames.size() != senderEventListenerClassNames.size()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_GATEWAY_SENDER_LISTENER_MISMATCH
              .toString(new Object[] { sp.Id, sp.senderEventListenerClassNames,
                  senderEventListenerClassNames }));
    }
    else {
      for(String listenerName : senderEventListenerClassNames){
        if(!sp.senderEventListenerClassNames.contains(listenerName)){
          throw new IllegalStateException(
              LocalizedStrings.GatewaySenderAdvisor_GATEWAY_SENDER_LISTENER_MISMATCH
                  .toString(new Object[] { sp.Id, sp.senderEventListenerClassNames,
                      senderEventListenerClassNames }));
        }
      }
    }
    if (sp.isDiskSynchronous != sender.isDiskSynchronous()) {
      throw new IllegalStateException(
          LocalizedStrings.GatewaySenderAdvisor_GATEWAY_SENDER_IS_DISK_SYNCHRONOUS_MISMATCH
              .toString(new Object[] { sp.Id, sp.isDiskSynchronous,
                  sender.isDiskSynchronous() }));
    }
  }

  /**
   * If there is change in sender which having policy as primary.
   * 1. If that sender is stopped then if there are no other primary senders then this sender should volunteer for primary.
   * 2. If this sender is primary and its policy is secondary then this sender should release the lock so that other primary sender which s waiting on lock will get the lock.
   * 
   */

  @Override
  public void profileUpdated(Profile profile) {
    if (profile instanceof GatewaySenderProfile) {
      GatewaySenderProfile sp = (GatewaySenderProfile)profile;
      if (!sp.isParallel) { // SerialGatewaySender
        if (!sp.isRunning) {
          if (advisePrimaryGatewaySender() != null) {
            return;
          }
          // IF this sender is not primary
          if (!((SerialGatewaySenderImpl)this.sender).isPrimary()) {
            if (!adviseEldestGatewaySender()) {// AND this is not the eldest
                                               // sender
              logger
                  .fine("Sender "
                      + this.sender
                      + " is not the eldest in the system. Giving preference to eldest sender to become primary...");
              return;
            }
            launchLockObtainingVolunteerThread();
          }
        } else {
          if (sp.serverLocation != null) {
            this.sender.setServerLocation(sp.serverLocation);
          }
        }
      }
    }
  }

  /**
   * When the sender profile is removed, 
   * then check for the primary members if they are not available then this secondary sender should volunteer for primary
   */
  @Override
  protected void profileRemoved(Profile profile) {
    if (profile instanceof GatewaySenderProfile) {
      GatewaySenderProfile sp = (GatewaySenderProfile)profile;
      if (!sp.isParallel) {// SerialGatewaySender
    	//if there is a primary sender, then don't volunteer for primary 
        if (advisePrimaryGatewaySender() != null) {
          return;
        }
        if (!((SerialGatewaySenderImpl)this.sender).isPrimary()) {//IF this sender is not primary
          if (!adviseEldestGatewaySender()) {//AND this is not the eldest sender 
        	logger.fine("Sender " + this.sender + " is not the eldest in the system. Giving preference to eldest sender to become primary...");
        	return;
          }
          launchLockObtainingVolunteerThread();
        }
      }
    }
  }
  
  public boolean isPrimary() {
    return sender.isParallel() || this.isPrimary;
  }

  public void initDLockService() {
    InternalDistributedSystem ds = ((GemFireCacheImpl)this.sender.getCache())
        .getDistributedSystem();
    String dlsName = getDLockServiceName();
    this.lockService = DistributedLockService.getServiceNamed(dlsName);
    if (this.lockService == null) {
      this.lockService = DLockService.create(dlsName, ds, true, true, true);
    }
    Assert.assertTrue(this.lockService != null);
    if (logger.fineEnabled()) {
      logger.fine(this + ": Obtained DistributedLockService: "
          + this.lockService);
    }
  }
  
  public boolean volunteerForPrimary() {
    if (logger.fineEnabled()) {
      logger.fine("Sender : " + this.sender.getId() + " is volunteering for Primary ");
    }

    if (advisePrimaryGatewaySender() == null) {
        if (!adviseEldestGatewaySender()) {
           	logger.fine("Sender " + this.sender + " is not the eldest in the system. Giving preference to eldest sender to become primary...");
           	return false;
        }
      if (logger.fineEnabled()) {
        logger.fine("Sender : " + this.sender
            + " no Primary available. So going to acquire distributed lock");
      }
      this.lockService.lock(this.lockToken, 10000, -1);
      return this.lockService.isHeldByCurrentThread(this.lockToken);
    }
    return false;
  }

  /**
   * Find out if this sender is the eldest in the DS. Returns true if: 1. No
   * other sender is running 2. At least one sender is running in the system
   * apart from this sender AND this sender's start time is lesser of all (i.e.
   * this sender is oldest)
   * 
   * @return boolean true if this eldest sender; false otherwise
   */
  private boolean adviseEldestGatewaySender() {
    Profile[] snapshot = this.profiles;

    // sender with minimum startTime is eldest. Find out the minimum start time
    // of remote senders.
    TreeSet senderStartTimes = new TreeSet();
    for (Profile profile : snapshot) {
      GatewaySenderProfile sp = (GatewaySenderProfile)profile;
      if (!sp.isParallel && sp.isRunning) {
        senderStartTimes.add(sp.startTime);
      }
    }

    // if none of the remote senders is running, then this sender should
    // volunteer for primary
    // if there are remote senders running and this sender is not running then
    // it should give up
    // and allow existing running senders to volunteer
    return (senderStartTimes.isEmpty())
        || (this.sender.isRunning() && (this.sender.startTime <= senderStartTimes
            .first()));
  }
  
  private InternalDistributedMember adviseEldestGatewaySenderNode() {
    Profile[] snapshot = this.profiles;

    // sender with minimum startTime is eldest. Find out the minimum start time
    // of remote senders.
    InternalDistributedMember node = null;
    GatewaySenderProfile eldestProfile = null;
    for (Profile profile : snapshot) {
      GatewaySenderProfile sp = (GatewaySenderProfile)profile;
      if (!sp.isParallel && sp.isRunning) {
        if (eldestProfile == null) {
          eldestProfile = sp;
        }
        if (sp.startTime < eldestProfile.startTime) {
          eldestProfile = sp;
        }
      }
    }

    if (eldestProfile != null) {
      node = eldestProfile.getDistributedMember();
    }
    return node;
  }
  
  public void makePrimary() {
    logger.info(LocalizedStrings.SerialGatewaySenderImpl_0__STARTING_AS_PRIMARY, this.sender);
    AbstractGatewaySenderEventProcessor eventProcessor = ((SerialGatewaySenderImpl)this.sender).getEventProcessor();
    if (eventProcessor != null) {
      eventProcessor.removeCacheListener();
    }
    
    synchronized (this.primaryLock) {
      this.isPrimary = true;
      logger.info(LocalizedStrings.SerialGatewaySenderImpl_0__BECOMING_PRIMARY_GATEWAYSENDER,
          this.sender);
      this.primaryLock.notifyAll();
    }
    new UpdateAttributesProcessor(this.sender).distribute(false);
  }
  
  public void makeSecondary() {
    if (logger.fineEnabled()) {
      logger.fine(this.sender + ": Did not obtain the lock on "
          + this.lockToken + ". Starting as secondary gateway sender.");
    }

    // Set primary flag to false
    logger.info(LocalizedStrings.SerialGatewaySenderImpl_0__STARTING_AS_SECONDARY_BECAUSE_PRIMARY_GATEWAY_SENDER_IS_AVAIALABLE_ON_MEMBER_2,
        new Object[] {this.sender.getId(), advisePrimaryGatewaySender()});
    this.isPrimary = false;
    new UpdateAttributesProcessor(this.sender).distribute(false);
  }
  
  public void launchLockObtainingVolunteerThread() {
    this.lockObtainingThread = new Thread(threadGroup, new Runnable() {
      @SuppressWarnings("synthetic-access")
      public void run() {
          final ReadLock rlock = GatewaySenderAdvisor.this.sender.lifeCycleLock
              .readLock();
          rlock.lock();
          try {
            // Attempt to obtain the lock
            if (!GatewaySenderAdvisor.this.sender.isRunning()) {
              return;
            }
            if (logger.fineEnabled()) {
              logger.fine(this + ": Obtaining the lock on "
                  + GatewaySenderAdvisor.this.lockToken);
            }

            if (volunteerForPrimary()) {
              logger.fine(this + ": Obtained the lock on "
                  + GatewaySenderAdvisor.this.lockToken);
              logger
                  .info(
                      LocalizedStrings.GatewayHubImpl_0_IS_BECOMING_PRIMARY_GATEWAY_HUB,
                      GatewaySenderAdvisor.this);

              // check for running status again
              if (!GatewaySenderAdvisor.this.sender.isRunning()) {
                return;
              }
              // As soon as the lock is obtained, set primary
              GatewaySenderAdvisor.this.makePrimary();
            }
          }
          catch (CancelException e) {
            // no action necessary
          }
          catch (Exception e) {
            if (GatewaySenderAdvisor.this.sender.getStopper()
                .cancelInProgress() == null) {
              logger
                  .severe(
                      LocalizedStrings.GatewayHubImpl_0_THE_THREAD_TO_OBTAIN_THE_FAILOVER_LOCK_WAS_INTERRUPTED__THIS_GATEWAY_HUB_WILL_NEVER_BECOME_THE_PRIMARY,
                      GatewaySenderAdvisor.this, e);
            }
          }
          finally{
            rlock.unlock();
        }
      }
    }, "Gateway Sender Primary Lock Acquisition Thread Volunteer");

    this.lockObtainingThread.setDaemon(true);
    this.lockObtainingThread.start();
  }

  public void waitToBecomePrimary() throws InterruptedException
  {
    if (isPrimary()) {
      return;
    }
    synchronized (this.primaryLock) {
      while (!isPrimary()) {
        logger.info(LocalizedStrings.GatewayImpl_0__WAITING_TO_BECOME_PRIMARY_GATEWAY, this.sender.getId());
        this.primaryLock.wait();
      }
    }
  }
  /**
   * Profile information for a remote counterpart.
   */
  public static final class GatewaySenderProfile extends DistributionAdvisor.Profile {
    public String Id;

    public long startTime;
    
    public int remoteDSId;
    
    /**
     * I need this boolean to make sure the sender which is volunteer for primary is running. not running sender should not become primary. 
     */
    public boolean isRunning;
    
    public boolean isPrimary;
    
    public boolean isParallel;
    
    public boolean isBatchConflationEnabled;

    public boolean isPersistenceEnabled;

    public int alertThreshold;

    public boolean manualStart;

    public ArrayList eventFiltersClassNames = new ArrayList();

    public ArrayList transFiltersClassNames = new ArrayList();

    public ArrayList senderEventListenerClassNames = new ArrayList();
    
    public boolean isDiskSynchronous; 
    
    public int dispatcherThreads;
    
    public OrderPolicy orderPolicy;
    
    public ServerLocation serverLocation;
    
    public GatewaySenderProfile(InternalDistributedMember memberId, int version) {
      super(memberId, version);
    }

    public GatewaySenderProfile() {
    }

    @Override
    public void fromData(DataInput in) throws IOException,
        ClassNotFoundException {
      super.fromData(in);
      this.Id = DataSerializer.readString(in);
      this.startTime = in.readLong();
      this.remoteDSId = in.readInt();
      this.isRunning = in.readBoolean();
      this.isPrimary = in.readBoolean();
      this.isParallel = in.readBoolean();
      this.isBatchConflationEnabled = in.readBoolean();
      this.isPersistenceEnabled = in.readBoolean();
      this.alertThreshold = in.readInt();
      this.manualStart = in.readBoolean();
      this.eventFiltersClassNames = DataSerializer.readArrayList(in);
      this.transFiltersClassNames = DataSerializer.readArrayList(in);
      this.senderEventListenerClassNames = DataSerializer.readArrayList(in);
      this.isDiskSynchronous = in.readBoolean();
      this.dispatcherThreads = in.readInt();
      this.orderPolicy = DataSerializer.readObject(in);
      boolean serverLocationFound = DataSerializer.readPrimitiveBoolean(in);
      if (serverLocationFound) {
          this.serverLocation = new ServerLocation();
          InternalDataSerializer.invokeFromData(this.serverLocation, in);
      }
    }

    @Override
    public void toData(DataOutput out) throws IOException {
      super.toData(out);
      DataSerializer.writeString(Id, out);
      out.writeLong(startTime);
      out.writeInt(remoteDSId);
      out.writeBoolean(isRunning);
      out.writeBoolean(isPrimary);
      out.writeBoolean(isParallel);
      out.writeBoolean(isBatchConflationEnabled);
      out.writeBoolean(isPersistenceEnabled);
      out.writeInt(alertThreshold);
      out.writeBoolean(manualStart);
      DataSerializer.writeArrayList(eventFiltersClassNames, out);
      DataSerializer.writeArrayList(transFiltersClassNames, out);
      DataSerializer.writeArrayList(senderEventListenerClassNames, out);
      out.writeBoolean(isDiskSynchronous);
      out.writeInt(dispatcherThreads);
      DataSerializer.writeObject(orderPolicy, out);
      boolean serverLocationFound = (this.serverLocation != null);
      DataSerializer.writePrimitiveBoolean(serverLocationFound, out);
      if(serverLocationFound) {
        InternalDataSerializer.invokeToData(serverLocation, out);
      }
    }

    public void fromDataPre_GFXD_1_0_1_0(DataInput in)
    	      throws IOException, ClassNotFoundException {
    	super.fromData(in);
        this.Id = DataSerializer.readString(in);
        this.startTime = in.readLong();
        this.remoteDSId = in.readInt();
        this.isRunning = in.readBoolean();
        this.isPrimary = in.readBoolean();
        this.isParallel = in.readBoolean();
        this.isBatchConflationEnabled = in.readBoolean();
        this.isPersistenceEnabled = in.readBoolean();
        this.alertThreshold = in.readInt();
        this.manualStart = in.readBoolean();
        this.eventFiltersClassNames = DataSerializer.readArrayList(in);
        this.transFiltersClassNames = DataSerializer.readArrayList(in);
        this.senderEventListenerClassNames = DataSerializer.readArrayList(in);
        this.isDiskSynchronous = in.readBoolean();
        this.dispatcherThreads = in.readInt();
        this.orderPolicy = DataSerializer.readObject(in);
        boolean serverLocationFound = DataSerializer.readPrimitiveBoolean(in);
        if (serverLocationFound) {
            this.serverLocation = new ServerLocation();
            InternalDataSerializer.invokeFromData(this.serverLocation, in);
        }
	  }
	
    public void toDataPre_GFXD_1_0_1_0(DataOutput out) throws IOException {
    	super.toData(out);
        DataSerializer.writeString(Id, out);
        out.writeLong(startTime);
        out.writeInt(remoteDSId);
        out.writeBoolean(isRunning);
        out.writeBoolean(isPrimary);
        out.writeBoolean(isParallel);
        out.writeBoolean(isBatchConflationEnabled);
        out.writeBoolean(isPersistenceEnabled);
        out.writeInt(alertThreshold);
        out.writeBoolean(manualStart);
        DataSerializer.writeArrayList(eventFiltersClassNames, out);
        DataSerializer.writeArrayList(transFiltersClassNames, out);
        DataSerializer.writeArrayList(senderEventListenerClassNames, out);
        out.writeBoolean(isDiskSynchronous);
        out.writeInt(1);
        DataSerializer.writeObject(orderPolicy, out);
        boolean serverLocationFound = (this.serverLocation != null);
        DataSerializer.writePrimitiveBoolean(serverLocationFound, out);
        if(serverLocationFound) {
          InternalDataSerializer.invokeToData(serverLocation, out);
        }
      }
    	    
    @Override
    public int getDSFID() {
      return GATEWAY_SENDER_PROFILE;
    }

    @Override
    public void processIncoming(DistributionManager dm, String adviseePath,
        boolean removeProfile, boolean exchangeProfiles,
        final List replyProfiles, LogWriterI18n logger) {
      GemFireCacheImpl cache = GemFireCacheImpl.getInstance();
      if (cache != null) {
        AbstractGatewaySender sender = (AbstractGatewaySender)cache
            .getGatewaySender(adviseePath);
        handleDistributionAdvisee(sender, removeProfile, exchangeProfiles,
            replyProfiles);
      }
    }

    @Override
    public void fillInToString(StringBuilder sb) {
      super.fillInToString(sb);
      sb.append("; id=" + this.Id);
      sb.append("; remoteDSName=" + this.remoteDSId);
      sb.append("; isRunning=" + this.isRunning);
      sb.append("; isPrimary=" + this.isPrimary);
    }
    
    private final static Version[] serializationVersions = new Version[] {Version.GFXD_101};
    
    @Override
    public Version[] getSerializationVersions() {
       return serializationVersions;
    }
  }

  public InternalDistributedMember advisePrimaryGatewaySender() {
    Profile[] snapshot = this.profiles;
    for (Profile profile : snapshot) {
      GatewaySenderProfile sp = (GatewaySenderProfile)profile;
      if (!sp.isParallel && sp.isPrimary) {
        return sp.getDistributedMember();
      }
    }
    return null;
  }
  
  public void setIsPrimary(boolean isPrimary) {
    this.isPrimary = isPrimary;
  }
  
  @Override
  public void close() {
	new UpdateAttributesProcessor(this.getAdvisee(), true).distribute(false);
    super.close();
  }
}




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