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/*===========================================================================
*
* PUBLIC DOMAIN NOTICE
* National Center for Biotechnology Information
*
* This software/database is a "United States Government Work" under the
* terms of the United States Copyright Act. It was written as part of
* the author's official duties as a United States Government employee and
* thus cannot be copyrighted. This software/database is freely available
* to the public for use. The National Library of Medicine and the U.S.
* Government have not placed any restriction on its use or reproduction.
*
* Although all reasonable efforts have been taken to ensure the accuracy
* and reliability of the software and data, the NLM and the U.S.
* Government do not and cannot warrant the performance or results that
* may be obtained by using this software or data. The NLM and the U.S.
* Government disclaim all warranties, express or implied, including
* warranties of performance, merchantability or fitness for any particular
* purpose.
*
* Please cite the author in any work or product based on this material.
*
* ===========================================================================
*
*/
#include "coldefs.h"
#include <klib/text.h>
#include <klib/out.h>
#include <vdb/table.h>
#include <sysalloc.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
/*
* helper-function for: col_defs_destroy
* - free's everything a node owns
* - free's the node
*/
static void CC col_defs_destroy_pair( void * node, void * data )
{
col_pair * pair = node;
if ( pair != NULL )
{
if ( pair -> name != NULL )
{
free( pair -> name );
pair -> name = NULL;
}
free( pair );
}
}
/*
* initializes a column-definitions-list
*/
rc_t col_defs_init( col_defs ** defs )
{
rc_t rc = 0;
if ( defs == NULL )
rc = RC( rcVDB, rcNoTarg, rcConstructing, rcSelf, rcNull );
else
{
col_defs * tmp = calloc( 1, sizeof( * tmp ) );
if ( tmp == NULL )
rc = RC( rcVDB, rcNoTarg, rcConstructing, rcMemory, rcExhausted );
else
{
VectorInit( &( tmp ->cols ), 0, 5 );
*defs = tmp;
}
}
return rc;
}
/*
* destroys the column-definitions-list
*/
rc_t col_defs_destroy( col_defs * defs )
{
rc_t rc = 0;
if ( defs == NULL )
rc = RC( rcVDB, rcNoTarg, rcDestroying, rcSelf, rcNull );
else
{
VectorWhack( &( defs -> cols ), col_defs_destroy_pair, NULL );
free( defs );
}
return rc;
}
/*
* helper-function for: col_defs_parse_string / col_defs_extract_from_table
* - creates a column-definition by the column-name
* - adds the definition to the column-definition-vector
*/
static rc_t col_defs_append_col_pair( col_defs * defs, const char * name )
{
rc_t rc = 0;
if ( name == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcParam, rcNull );
else if ( name[ 0 ] == 0 )
rc = RC( rcExe, rcNoTarg, rcResolving, rcParam, rcEmpty );
else
{
col_pair * new_pair = calloc( 1, sizeof( * new_pair ) );
if ( new_pair == NULL )
rc = RC( rcVDB, rcNoTarg, rcParsing, rcMemory, rcExhausted );
else
{
new_pair -> name = string_dup_measure ( name, NULL );
rc = VectorAppend( &( defs -> cols ), NULL, new_pair );
if ( rc != 0 )
col_defs_destroy_pair( new_pair, NULL );
}
}
return rc;
}
/*
*/
rc_t col_defs_fill( col_defs * defs, const KNamelist * list )
{
rc_t rc = 0;
if ( defs == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcSelf, rcNull );
else if ( list == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcParam, rcNull );
else
{
uint32_t count;
rc = KNamelistCount( list, &count );
if ( rc != 0 )
KOutMsg( "col_defs_extract_from_table:KNamelistCount() failed %R\n", rc );
else
{
uint32_t idx;
for ( idx = 0; idx < count && rc == 0; ++idx )
{
const char * name;
rc = KNamelistGet( list, idx, &name );
if ( rc != 0 )
KOutMsg( "col_defs_extract_from_table:KNamelistGet() failed %R\n", rc );
else
rc = col_defs_append_col_pair( defs, name );
}
}
}
return rc;
}
/*
* how many columns do we have in here?
*/
rc_t col_defs_count( const col_defs * defs, uint32_t * count )
{
rc_t rc = 0;
if ( defs == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcSelf, rcNull );
else if ( count == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcParam, rcNull );
else
{
*count = VectorLength( &( defs -> cols ) );
}
return rc;
}
/*
* add the pairs in defs to the given cursor
*/
rc_t col_defs_add_to_cursor( col_defs * defs, const VCursor * cur, int idx )
{
rc_t rc = 0;
if ( defs == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcSelf, rcNull );
else if ( cur == NULL )
rc = RC( rcExe, rcNoTarg, rcResolving, rcParam, rcNull );
else if ( idx < 0 || idx > 1 )
rc = RC( rcExe, rcNoTarg, rcResolving, rcParam, rcInvalid );
else
{
uint32_t i;
uint32_t count = VectorLength( &( defs -> cols ) );
for ( i = 0; i < count && rc == 0; ++i )
{
col_pair * pair = VectorGet( &( defs -> cols ), i );
if ( pair != NULL )
rc = VCursorAddColumn( cur, &( pair -> pair[ idx ].idx ), "%s", pair -> name );
}
}
return rc;
}
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