public void delete()

in core/src/main/java/org/apache/directory/server/core/DefaultOperationManager.java [725:904]
141 lines of code
24 McCabe index (conditional complexity)

    public void delete( DeleteOperationContext deleteContext ) throws LdapException
    {
        if ( IS_DEBUG )
        {
            OPERATION_LOG.debug( ">> DeleteOperation : {}", deleteContext );
        }

        long opStart = 0L;

        if ( IS_TIME )
        {
            opStart = System.nanoTime();
        }

        ensureStarted();

        // Normalize the deleteContext Dn
        Dn dn = deleteContext.getDn();
        Partition partition = directoryService.getPartitionNexus().getPartition( dn );
        deleteContext.setPartition( partition );

        if ( !dn.isSchemaAware() )
        {
            dn = new Dn( directoryService.getSchemaManager(), dn );
            deleteContext.setDn( dn );
        }

        // We have to deal with the referral first
        directoryService.getReferralManager().lockRead();

        try
        {
            Entry parentEntry = directoryService.getReferralManager().getParentReferral( dn );

            if ( parentEntry != null )
            {
                // We have found a parent referral for the current Dn
                Dn childDn = dn.getDescendantOf( parentEntry.getDn() );

                if ( directoryService.getReferralManager().isReferral( dn ) )
                {
                    // This is a referral. We can delete it if the ManageDsaIt flag is true
                    // Otherwise, we just throw a LdapReferralException
                    if ( !deleteContext.isReferralIgnored() )
                    {
                        // Throw a Referral Exception
                        throw buildReferralException( parentEntry, childDn );
                    }
                }
                else if ( directoryService.getReferralManager().hasParentReferral( dn ) )
                {
                    // We can't delete an entry which has an ancestor referral

                    // Depending on the Context.REFERRAL property value, we will throw
                    // a different exception.
                    if ( deleteContext.isReferralIgnored() )
                    {
                        throw buildLdapPartialResultException( childDn );
                    }
                    else
                    {
                        throw buildReferralException( parentEntry, childDn );
                    }
                }
            }
        }
        finally
        {
            // Unlock the ReferralManager
            directoryService.getReferralManager().unlock();
        }

        // populate the context with the old entry
        lockWrite();

        // Start a Write transaction right away
        PartitionTxn transaction = deleteContext.getSession().getTransaction( partition ); 
        
        try
        {
            if ( transaction == null )
            {
                transaction = partition.beginWriteTransaction();
                
                if ( deleteContext.getSession().hasSessionTransaction() )
                {
                    deleteContext.getSession().addTransaction( partition, transaction );
                }
            }
            
            deleteContext.setTransaction( transaction );

            // Check if the TreeDelete control is used
            if ( deleteContext.hasRequestControl( TreeDelete.OID ) )
            {
                try
                {
                    processTreeDelete( deleteContext, deleteContext.getDn() );

                    if ( !deleteContext.getSession().hasSessionTransaction() )
                    {
                        transaction.commit();
                    }
                }
                catch ( CursorException ce )
                {
                    try
                    {
                        if ( transaction != null )
                        {
                            transaction.abort();
                        }
                        
                        throw new LdapOtherException( ce.getMessage(), ce );
                    }
                    catch ( IOException ioe )
                    {
                        throw new LdapOtherException( ioe.getMessage(), ioe );
                    }
                }
            }
            else
            {
                eagerlyPopulateFields( deleteContext );
    
                // Call the Delete method
                Interceptor head = directoryService.getInterceptor( deleteContext.getNextInterceptor() );
    
                head.delete( deleteContext );
    
                if ( !deleteContext.getSession().hasSessionTransaction() )
                {
                    transaction.commit();
                }
            }
        }
        catch ( LdapException le )
        {
            try
            {
                if ( transaction != null )
                {
                    transaction.abort();
                }
                
                throw le;
            }
            catch ( IOException ioe )
            {
                throw new LdapOtherException( ioe.getMessage(), ioe );
            }
        }
        catch ( IOException ioe )
        {
            try
            {
                transaction.abort();
                
                throw new LdapOtherException( ioe.getMessage(), ioe );
            }
            catch ( IOException ioe2 )
            {
                throw new LdapOtherException( ioe2.getMessage(), ioe2 );
            }
        }
        finally
        {
            unlockWrite();
        }

        if ( IS_DEBUG )
        {
            OPERATION_LOG.debug( "<< DeleteOperation successful" );
        }

        if ( IS_TIME )
        {
            OPERATION_TIME.debug( "Delete operation took {} ns", ( System.nanoTime() - opStart ) );
        }
    }