/* StoreSchema
*/
rc_t VDatabaseStoreSchema ( VDatabase *self )
{
/* open schema node */
KMDataNode *node;
rc_t rc = KMetadataOpenNodeUpdate ( self -> meta, & node, "schema" );
if ( rc == 0 )
{
size_t num_writ;
char expr [ 256 ];
rc = VSchemaToText ( self -> schema, expr, sizeof expr - 1, & num_writ,
"%N%V", self -> sdb -> name, self -> sdb -> version );
if ( rc != 0 )
LOGERR ( klogInt, rc, "failed to determine database schema" );
else
{
expr [ num_writ ] = 0;
rc = KMDataNodeWriteAttr ( node, "name", expr );
if ( rc != 0 )
PLOGERR (klogInt, ( klogInt, rc, "failed to write database type '$(expr)'", "expr=%s", expr ));
else
{
/* truncate existing schema */
rc = KMDataNodeWrite ( node, "", 0 );
if ( rc == 0 )
{
rc = VSchemaDump ( self -> schema, sdmCompact, expr,
( rc_t ( CC * ) ( void*, const void*, size_t ) ) KMDataNodeAppend, node );
}
if ( rc != 0 )
PLOGERR (klogInt, ( klogInt, rc, "failed to write database schema '$(expr)'", "expr=%s", expr ));
}
}
KMDataNodeRelease ( node );
}
return rc;
}
/* StoreSchema
* stores schema definition in metadata
*
* <schema name="">...</schema>
*/
LIB_EXPORT rc_t VTableStoreSchema ( VTable *self )
{
/* open schema node */
KMDataNode *node;
rc_t rc = KMetadataOpenNodeUpdate ( self -> meta, & node, "schema" );
if ( rc == 0 )
{
size_t num_writ;
char expr [ 256 ];
rc = VSchemaToText ( self -> schema, expr, sizeof expr - 1, & num_writ,
"%N%V", self -> stbl -> name, self -> stbl -> version );
if ( rc != 0 )
LOGERR ( klogInt, rc, "failed to determine table schema" );
else
{
expr [ num_writ ] = 0;
/* if table has a default view declaration,
store the table information under a new attribute */
if ( self -> stbl -> dflt_view != NULL )
{
uint32_t type;
const SNameOverload *name;
const STable *view = VSchemaFind ( self -> schema, & name, & type,
self -> stbl -> dflt_view-> addr, __func__, false );
if ( view == NULL )
{
rc = RC ( rcVDB, rcTable, rcUpdating, rcSchema, rcNotFound );
PLOGERR ( klogInt, ( klogInt, rc, "failed to locate default view schema '$(expr)'",
"expr=%S", self -> stbl -> dflt_view ));
}
else
{
rc = KMDataNodeWriteAttr ( node, "table", expr );
if ( rc != 0 )
PLOGERR ( klogInt, ( klogInt, rc, "failed to write table type '$(expr)'", "expr=%s", expr ));
else
{
rc = VSchemaToText ( self -> schema, expr, sizeof expr - 1, & num_writ,
"%N%V", view -> name, view -> version );
if ( rc != 0 )
LOGERR ( klogInt, rc, "failed to determine table default view schema" );
else
expr [ num_writ ] = 0;
}
}
}
if ( rc == 0 )
{
rc = KMDataNodeWriteAttr ( node, "name", expr );
if ( rc != 0 )
PLOGERR ( klogInt, ( klogInt, rc, "failed to write table name '$(expr)'", "expr=%s", expr ));
}
if ( rc == 0 )
{
/* truncate existing schema */
rc = KMDataNodeWrite ( node, "", 0 );
if ( rc == 0 )
{
rc = VSchemaDump ( self -> schema, sdmCompact, expr,
( rc_t ( CC * ) ( void*, const void*, size_t ) ) KMDataNodeAppend, node );
}
if ( rc != 0 )
PLOGERR ( klogInt, ( klogInt, rc, "failed to write table schema '$(expr)'", "expr=%s", expr ));
}
}
KMDataNodeRelease ( node );
}
return rc;
}