TRI_aql_context_t* TRI_CreateContextAql (TRI_vocbase_t* vocbase,
const char* const query) {
TRI_aql_context_t* context;
TRI_ASSERT_MAINTAINER(vocbase != NULL);
TRI_ASSERT_MAINTAINER(query != NULL);
LOG_TRACE("creating context");
context = (TRI_aql_context_t*) TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, sizeof(TRI_aql_context_t), false);
if (context == NULL) {
return NULL;
}
context->_vocbase = vocbase;
context->_variableIndex = 0;
context->_scopeIndex = 0;
// actual bind parameter values
TRI_InitAssociativePointer(&context->_parameters._values,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashBindParameterAql,
&TRI_EqualBindParameterAql,
0);
// bind parameter names used in the query
TRI_InitAssociativePointer(&context->_parameters._names,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashStringKeyAssociativePointer,
&TRI_EqualStringKeyAssociativePointer,
0);
// collections
TRI_InitAssociativePointer(&context->_collectionNames,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashStringKeyAssociativePointer,
&TRI_EqualStringKeyAssociativePointer,
0);
TRI_InitVectorPointer2(&context->_memory._nodes, TRI_UNKNOWN_MEM_ZONE, 16);
TRI_InitVectorPointer2(&context->_memory._strings, TRI_UNKNOWN_MEM_ZONE, 16);
TRI_InitVectorPointer(&context->_collections, TRI_UNKNOWN_MEM_ZONE);
TRI_InitErrorAql(&context->_error);
context->_parser = NULL;
context->_statements = NULL;
context->_query = query;
context->_parser = TRI_CreateParserAql(context->_query);
if (context->_parser == NULL) {
// could not create the parser
TRI_FreeContextAql(context);
return NULL;
}
if (! TRI_InitParserAql(context)) {
// could not initialise the lexer
TRI_FreeContextAql(context);
return NULL;
}
context->_statements = TRI_CreateStatementListAql();
if (context->_statements == NULL) {
// could not create statement list
TRI_FreeContextAql(context);
return NULL;
}
TRI_InitScopesAql(context);
return context;
}
TRI_aql_context_t* TRI_CreateContextAql (TRI_vocbase_t* vocbase,
const char* const query,
const size_t queryLength,
bool isCoordinator,
TRI_json_t* userOptions) {
TRI_aql_context_t* context;
int res;
TRI_ASSERT(vocbase != NULL);
TRI_ASSERT(query != NULL);
LOG_TRACE("creating context");
context = (TRI_aql_context_t*) TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, sizeof(TRI_aql_context_t), false);
if (context == NULL) {
return NULL;
}
context->_type = TRI_AQL_QUERY_READ;
context->_vocbase = vocbase;
context->_userOptions = userOptions;
context->_writeOptions = NULL;
context->_writeCollection = NULL;
context->_variableIndex = 0;
context->_scopeIndex = 0;
context->_subQueries = 0;
// actual bind parameter values
res = TRI_InitAssociativePointer(&context->_parameters._values,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashBindParameterAql,
&TRI_EqualBindParameterAql,
0);
if (res != TRI_ERROR_NO_ERROR) {
TRI_Free(TRI_UNKNOWN_MEM_ZONE, context);
return NULL;
}
// bind parameter names used in the query
res = TRI_InitAssociativePointer(&context->_parameters._names,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashStringKeyAssociativePointer,
&TRI_EqualStringKeyAssociativePointer,
0);
if (res != TRI_ERROR_NO_ERROR) {
TRI_DestroyAssociativePointer(&context->_parameters._values);
TRI_Free(TRI_UNKNOWN_MEM_ZONE, context);
return NULL;
}
// collections
res = TRI_InitAssociativePointer(&context->_collectionNames,
TRI_UNKNOWN_MEM_ZONE,
&TRI_HashStringKeyAssociativePointer,
&TRI_HashStringKeyAssociativePointer,
&TRI_EqualStringKeyAssociativePointer,
0);
if (res != TRI_ERROR_NO_ERROR) {
TRI_DestroyAssociativePointer(&context->_parameters._names);
TRI_DestroyAssociativePointer(&context->_parameters._values);
TRI_Free(TRI_UNKNOWN_MEM_ZONE, context);
return NULL;
}
TRI_InitVectorPointer2(&context->_memory._nodes, TRI_UNKNOWN_MEM_ZONE, 16);
TRI_InitVectorPointer2(&context->_memory._strings, TRI_UNKNOWN_MEM_ZONE, 16);
TRI_InitVectorPointer(&context->_collections, TRI_UNKNOWN_MEM_ZONE);
TRI_InitErrorAql(&context->_error);
context->_parser = NULL;
context->_statements = NULL;
context->_query = query;
TRI_InitScopesAql(context);
context->_parser = TRI_CreateParserAql(context->_query, queryLength);
if (context->_parser == NULL) {
// could not create the parser
TRI_FreeContextAql(context);
return NULL;
}
if (! TRI_InitParserAql(context)) {
// could not initialise the lexer
TRI_FreeContextAql(context);
return NULL;
}
context->_statements = TRI_CreateStatementListAql();
if (context->_statements == NULL) {
// could not create statement list
TRI_FreeContextAql(context);
return NULL;
}
ProcessOptions(context);
context->_isCoordinator = isCoordinator;
return context;
}
