Examples of org.nasutekds.server.replication.protocol.AddContext

Package org.nasutekds.server.replication.protocol

Examples of org.nasutekds.server.replication.protocol.AddContext

org.nasutekds.server.replication.protocol.AddContext
This class describes the context that is attached to Add Operation.

      }
    }


    if (addOperation.isSynchronizationOperation())
    {
      AddContext ctx = (AddContext) addOperation.getAttachment(SYNCHROCONTEXT);
      /*
       * If an entry with the same entry uniqueID already exist then
       * this operation has already been replayed in the past.
       */
      String uuid = ctx.getEntryUid();
      if (findEntryDN(uuid) != null)
      {
        return new SynchronizationProviderResult.StopProcessing(
            ResultCode.CANCELED, null);
      }


      /* The parent entry may have been renamed here since the change was done
       * on the first server, and another entry have taken the former dn
       * of the parent entry
       */


      String parentUid = ctx.getParentUid();
      // root entry have no parent,
      // there is no need to check for it.
      if (parentUid != null)
      {
        // There is a potential of perfs improvement here
        // if we could avoid the following parent entry retrieval
        DN parentDnFromCtx = findEntryDN(ctx.getParentUid());


        if (parentDnFromCtx == null)
        {
          // The parent does not exist with the specified unique id
          // stop the operation with NO_SUCH_OBJECT and let the

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   *
   * @param addOperation The Add Operation.
   */
  public void doPreOperation(PreOperationAddOperation addOperation)
  {
    AddContext ctx = new AddContext(generateChangeNumber(addOperation),
        EntryHistorical.getEntryUuid(addOperation),
        findEntryId(addOperation.getEntryDN().getParentDNInSuffix()));


    addOperation.setAttachment(SYNCHROCONTEXT, ctx);
  }

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   */
  private boolean solveNamingConflict(AddOperation op,
      AddMsg msg) throws Exception
  {
    ResultCode result = op.getResultCode();
    AddContext ctx = (AddContext) op.getAttachment(SYNCHROCONTEXT);
    String entryUid = ctx.getEntryUid();
    String parentUniqueId = ctx.getParentUid();


    if (result == ResultCode.NO_SUCH_OBJECT)
    {
      /*
       * This can happen if the parent has been renamed or deleted
       * find the parent dn and calculate a new dn for the entry
       */
      if (parentUniqueId == null)
      {
        /*
         * This entry is the base dn of the backend.
         * It is quite surprising that the operation result be NO_SUCH_OBJECT.
         * There is nothing more we can do except TODO log a
         * message for the repair tool to look at this problem.
         */
        return true;
      }
      DN parentDn = findEntryDN(parentUniqueId);
      if (parentDn == null)
      {
        /*
         * The parent has been deleted
         * rename the entry as a conflicting entry.
         * The action taken here must be consistent with the actions
         * done when in the solveNamingConflict(DeleteOperation) method
         * when we are deleting an entry that have some child entries.
         */
        addConflict(msg);


        msg.setDn(generateConflictRDN(entryUid,
                    op.getEntryDN().getRDN().toString()) + ","
                    + baseDn);
        // reset the parent uid so that the check done is the handleConflict
        // phase does not fail.
        msg.setParentUid(null);
        numUnresolvedNamingConflicts.incrementAndGet();
        return false;
      }
      else
      {
        RDN entryRdn = DN.decode(msg.getDn()).getRDN();
        msg.setDn(entryRdn + "," + parentDn);
        numResolvedNamingConflicts.incrementAndGet();
        return false;
      }
    }
    else if (result == ResultCode.ENTRY_ALREADY_EXISTS)
    {
      /*
       * This can happen if
       *  - two adds are done on different servers but with the
       *    same target DN.
       *  - the same ADD is being replayed for the second time on this server.
       * if the nsunique ID already exist, assume this is a replay and
       *        don't do anything
       * if the entry unique id do not exist, generate conflict.
       */
      if (findEntryDN(entryUid) != null)
      {
        // entry already exist : this is a replay
        return true;
      }
      else
      {
        addConflict(msg);
        msg.setDn(generateConflictRDN(entryUid, msg.getDn()));
        numUnresolvedNamingConflicts.incrementAndGet();
        return false;
      }
    }
    else
    {
      // The other type of errors can not be caused by naming conflicts.
      // log a message for the repair tool.
      Message message = ERR_ERROR_REPLAYING_OPERATION.get(
          op.toString(), ctx.getChangeNumber().toString(),
          result.toString(), op.getErrorMessage().toString());
      logError(message);
      return true;
    }
  }

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org.nasutekds.server.replication.plugin.LDAPReplicationDomain

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