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selectexp.c
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selectexp.c
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/*
* $Id: selectexp.c,v 1.11 2007/10/02 09:02:11 mihajlov Exp $
*
* © Copyright IBM Corp. 2005, 2007
*
* THIS FILE IS PROVIDED UNDER THE TERMS OF THE ECLIPSE PUBLIC LICENSE
* ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE
* CONSTITUTES RECIPIENTS ACCEPTANCE OF THE AGREEMENT.
*
* You can obtain a current copy of the Eclipse Public License from
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* Author: Frank Scheffler
* Contributions: Adrian Schuur <schuur@de.ibm.com>
*
* Description:
*
* CMPISelectExp implementation.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "native.h"
#include "queryOperation.h"
#include "selectexp.h"
static NativeSelectExp *__new_exp(int node,
const char *queryString,
const char *language, const char *sns,
CMPIArray **projection, CMPIStatus *rc);
extern CMPIValue queryGetValue(QLPropertySource * src, char *name,
QLOpd * type);
extern CMPISelectCond *TrackedCMPISelectCond(CMPIArray *conds, int type,
CMPIStatus *rc);
/*****************************************************************************/
static CMPIStatus
__eft_release(CMPISelectExp *exp)
{
NativeSelectExp *e = (NativeSelectExp *) exp;
if (e->mem_state && e->mem_state != MEM_RELEASED) {
free(e->queryString);
free(e->language);
if (e->sns)
free(e->sns);
memUnlinkEncObj(e->mem_state);
e->mem_state = MEM_RELEASED;
free(e);
CMReturn(CMPI_RC_OK);
}
CMReturn(CMPI_RC_ERR_FAILED);
}
static CMPISelectExp *
__eft_clone(const CMPISelectExp *exp, CMPIStatus *rc)
{
NativeSelectExp *e = (NativeSelectExp *) exp;
return (CMPISelectExp *) __new_exp(MEM_NOT_TRACKED,
e->queryString, e->language, e->sns,
NULL, rc);
}
CMPIBoolean
__eft_evaluate(const CMPISelectExp *exp,
const CMPIInstance *inst, CMPIStatus *rc)
{
int irc;
NativeSelectExp *e = (NativeSelectExp *) exp;
struct qlPropertySource src =
{ (CMPIInstance *) inst, NULL, queryGetValue };
if (rc)
CMSetStatus(rc, CMPI_RC_OK);
if (e->qs->where == NULL)
return 1;
src.sns = e->qs->sns;
irc = e->qs->where->ft->evaluate(e->qs->where, &src);
return irc;
}
CMPIString *
__eft_getString(const CMPISelectExp *exp, CMPIStatus *rc)
{
NativeSelectExp *e = (NativeSelectExp *) exp;
return sfcb_native_new_CMPIString(e->queryString, rc, 0);
}
CMPISelectCond *
__eft_getDOC(const CMPISelectExp *exp, CMPIStatus *rc)
{
NativeSelectExp *e = (NativeSelectExp *) exp;
PredicateDisjunction *pc = NULL;
if (e->qs->where)
pc = e->qs->where->ft->getPredicateDisjunction(e->qs->where);
return TrackedCMPISelectCond(pc, 0, rc);
}
CMPISelectCond *
__eft_getCOD(const CMPISelectExp *exp, CMPIStatus *rc)
{
NativeSelectExp *e = (NativeSelectExp *) exp;
PredicateConjunction *pc = NULL;
if (e->qs->where)
pc = e->qs->where->ft->getPredicateConjunction(e->qs->where);
return TrackedCMPISelectCond(pc, 1, rc);
}
CMPIBoolean
__eft_evaluateUsingAccessor(const CMPISelectExp *se,
CMPIAccessor * accessor,
void *parm, CMPIStatus *rc)
{
if (rc)
rc->rc = CMPI_RC_ERR_NOT_SUPPORTED;
return 0;
}
static CMPISelectExpFT eft = {
NATIVE_FT_VERSION,
__eft_release,
__eft_clone,
__eft_evaluate,
__eft_getString,
__eft_getDOC,
__eft_getCOD,
__eft_evaluateUsingAccessor
};
static CMPISelectExp eFt = {
"CMPISelectExp",
&eft
};
static NativeSelectExp *
__new_exp(int mode, const char *queryString,
const char *language, const char *sns, CMPIArray **projection,
CMPIStatus *rc)
{
int state,
irc;
NativeSelectExp exp,
*tExp;
memset(&exp, 0, sizeof(exp));
exp.exp = eFt;
/*
* fprintf(stderr,"*** new select expression: %s %s\n",queryString,
* language);
*/
exp.qs =
parseQuery(mode, (char *) queryString, (char *) language,
(char *) sns, &irc);
if (irc) {
if (rc)
CMSetStatus(rc, CMPI_RC_ERR_INVALID_QUERY);
return NULL;
}
exp.queryString = strdup(queryString);
exp.language = strdup(language);
if (sns)
exp.sns = strdup(sns);
if (projection) {
char **list = exp.qs->spNames;
int i;
CMPIArray *ar =
*projection = TrackedCMPIArray(exp.qs->spNext, CMPI_string, NULL);
for (i = 0; *list; list++, i++)
CMSetArrayElementAt(ar, i, (CMPIValue *) * list, CMPI_chars);
}
tExp = memAddEncObj(mode, &exp, sizeof(exp), &state);
tExp->mem_state = state;
if (rc)
CMSetStatus(rc, CMPI_RC_OK);
return tExp;
}
CMPISelectExp *
TrackedCMPISelectExp(const char *queryString,
const char *language,
CMPIArray **projection, CMPIStatus *rc)
{
return (CMPISelectExp *) __new_exp(MEM_TRACKED,
queryString, language, NULL,
projection, rc);
}
CMPISelectExp *
NewCMPISelectExp(const char *queryString,
const char *language, char *sns,
CMPIArray **projection, CMPIStatus *rc)
{
return (CMPISelectExp *) __new_exp(MEM_NOT_TRACKED,
queryString, language, sns,
projection, rc);
}
CMPISelectExp *
TempCMPISelectExp(QLStatement * qs)
{
NativeSelectExp *exp =
(NativeSelectExp *) calloc(1, sizeof(NativeSelectExp));
exp->exp = eFt;
exp->qs = qs;
return (CMPISelectExp *) exp;
}
/****************************************************************************/
/*** Local Variables: ***/
/*** mode: C ***/
/*** c-basic-offset: 8 ***/
/*** End: ***/
/* MODELINES */
/* DO NOT EDIT BELOW THIS COMMENT */
/* Modelines are added by 'make pretty' */
/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil; -*- */
/* vi:set ts=2 sts=2 sw=2 expandtab: */