/*
***************************************************************************
** Clears all objects from cache.
***************************************************************************
*/
void FreeObjects()
{
TObject *next = cache;
TObject *node;
while (next)
{
node = next;
next = (TObject*) node->next;
FREE(node->name);
JpmcdsFreeTCurve((TCurve*)(node->data));
FREE(node);
}
}
/*
***************************************************************************
** Build zero curve from money market, and swap instruments.
***************************************************************************
*/
EXPORT TCurve* JpmcdsBuildIRZeroCurve(
TDate valueDate, /* (I) Value date */
char *instrNames, /* (I) Array of 'M' or 'S' */
TDate *dates, /* (I) Array of swaps dates */
double *rates, /* (I) Array of swap rates */
long nInstr, /* (I) Number of benchmark instruments */
long mmDCC, /* (I) DCC of MM instruments */
long fixedSwapFreq, /* (I) Fixed leg freqency */
long floatSwapFreq, /* (I) Floating leg freqency */
long fixedSwapDCC, /* (I) DCC of fixed leg */
long floatSwapDCC, /* (I) DCC of floating leg */
long badDayConv, /* (I) Bad day convention */
char *holidayFile) /* (I) Holiday file */
{
static char routine[] = "BuildIRZeroCurve";
int status = FAILURE;
int i;
int nCash = 0;
int nSwap = 0;
char fwdLength = '3'; /* not used */
char instr;
TDate *cashDates = NULL;
TDate *swapDates = NULL;
double *cashRates = NULL;
double *swapRates = NULL;
TCurve *zcurveIni = NULL;
TCurve *zcurveCash = NULL;
TCurve *zcurveSwap = NULL;
/* Allocate enough spaces for cash and swap dates/rates */
cashDates = NEW_ARRAY(TDate, nInstr);
swapDates = NEW_ARRAY(TDate, nInstr);
cashRates = NEW_ARRAY(double, nInstr);
swapRates = NEW_ARRAY(double, nInstr);
if (cashDates == NULL || swapDates == NULL || cashRates == NULL || swapRates == NULL)
goto done;
/* Sort out cash and swap separately */
for(i = 0; i < nInstr; i++)
{
instr = toupper(instrNames[i]);
if (instr != JpmcdsMONEYNAME && instr != JpmcdsSWAPNAME)
{
JpmcdsErrMsg("%s: unknown instrument type (%c)."
" Only (M)oney market or (S)wap is allowed.\n",
routine, instrNames[i]);
goto done;
}
if (instr == JpmcdsMONEYNAME)
{ /* MM Rate */
cashDates[nCash] = dates[i];
cashRates[nCash] = rates[i];
nCash++;
}
else /* Swap Rate */
{
swapDates[nSwap] = dates[i];
swapRates[nSwap] = rates[i];
nSwap++;
}
}
/* Initialize the zero curve */
zcurveIni = JpmcdsNewTCurve(valueDate, 0, (double) 1L, JPMCDS_ACT_365F);
if (zcurveIni == NULL){
goto done;
printf("zcurveIni...\n");
}
/* Cash instruments */
zcurveCash = JpmcdsZCCash(zcurveIni, cashDates, cashRates, nCash, mmDCC);
if (zcurveCash == NULL){
JpmcdsErrMsg("Cash Curve not available ... \n");
goto done;
}
/* Swap instruments */
zcurveSwap = JpmcdsZCSwaps(zcurveCash,
NULL, /* discZC */
swapDates,
swapRates,
nSwap,
fixedSwapFreq,
floatSwapFreq,
fixedSwapDCC,
floatSwapDCC,
fwdLength,
badDayConv,
holidayFile);
if (zcurveSwap == NULL){
JpmcdsErrMsg("IR curve not available ... \n");
// printf("g...\n");
goto done;
}
status = SUCCESS;
done:
FREE(cashDates);
FREE(cashRates);
FREE(swapDates);
FREE(swapRates);
JpmcdsFreeTCurve(zcurveIni);
JpmcdsFreeTCurve(zcurveCash);
if (status != SUCCESS)
{
JpmcdsFreeTCurve(zcurveSwap);
zcurveSwap = NULL;
JpmcdsErrMsgFailure(routine);
}
return (zcurveSwap);
}
/*
***************************************************************************
** Adds cash points to a given zero curve.
***************************************************************************
*/
TCurve* JpmcdsZCCash(
TCurve *zeroCurve, /* (I) Zero curve to add to */
TDate *dates, /* (I) Array of cash dates */
double *rates, /* (I) Array of cash rates */
int numRates, /* (I) Number of cash rates to add */
long dayCountConv) /* (I) See JpmcdsDayCountConvention */
{
static char routine[] = "JpmcdsZCCash";
int status = FAILURE;
TCurve *tcCash = NULL;
ZCurve *zcCash = NULL;
ZCurve *zcStub = NULL;
if (numRates == 0) /* nothing to add */
{
tcCash = JpmcdsCopyCurve (zeroCurve);
return tcCash;
}
if (CheckZCCashInputs(zeroCurve, dates, rates, numRates, dayCountConv) == FAILURE)
goto done;
/* convert the input TCurve into a ZCurve so we can call all the usual
zero curve routines */
if (zeroCurve->fNumItems > 0) /* only want it if we need it */
{
zcStub = JpmcdsZCFromTCurve(zeroCurve);
if (zcStub == NULL)
{
JpmcdsErrMsg("%s: failed to make ZCurve structure from input TCurve.\n", routine);
goto done;
}
}
zcCash = JpmcdsZCMake(zeroCurve->fBaseDate, numRates + 2, ZC_DEFAULT_BASIS, ZC_DEFAULT_DAYCNT);
if (zcCash == NULL)
{
JpmcdsErrMsg("%s: couldn't make Zero Curve for cash.\n", routine);
goto done;
}
if (JpmcdsZCAddMoneyMarket(zcCash, dates, rates, numRates, dayCountConv) == FAILURE)
{
JpmcdsErrMsg("%s: Adding cash instruments failed.\n", routine);
goto done;
}
/* combine the stub curve with the cash part */
if (zcStub != NULL)
{
if (JpmcdsZCAddPrefixCurve(zcCash, zcStub) == FAILURE)
{
JpmcdsErrMsg("%s: Error adding Cash and stub zero curve together.\n", routine);
goto done;
}
if (JpmcdsZCAddSuffixCurve(zcCash, zcStub) == FAILURE)
{
JpmcdsErrMsg("%s: Error adding cash and stub zero curve together(2).\n", routine);
goto done;
}
}
tcCash = JpmcdsZCToTCurve(zcCash);
if (tcCash == NULL)
{
JpmcdsErrMsg("%s: couldn't make a TCurve copy of Cash zero curve.\n", routine);
goto done;
}
status = SUCCESS;
goto done;
done:
if (status == FAILURE)
{
JpmcdsFreeTCurve(tcCash);
tcCash = NULL;
JpmcdsErrMsg("%s: Failed.\n", routine);
}
JpmcdsZCFree(zcCash);
JpmcdsZCFree(zcStub);
return tcCash;
}
/*
***************************************************************************
** Adds swap points to a given zero curve.
***************************************************************************
*/
TCurve* JpmcdsZCSwaps(
TCurve *zeroCurve, /* (I) Zero curve to add swap points to*/
TCurve *discZC, /* (I) Zero curve used for discounting */
TDate *dates, /* (I) Unadjusted swap maturity dates */
double *rates, /* (I) Swap par fixed rates (0.06=6%) */
int numSwaps, /* (I) Len of dates,rates,prices */
int fixedSwapFreq, /* (I) Fixed leg coupon frequency */
int floatSwapFreq, /* (I) Floating leg coupon frequency */
long fixDayCountConv, /* (I) See JpmcdsDayCountConvention */
long floatDayCountConv, /* (I) See JpmcdsDayCountConvention */
char fwdLength, /* (I) For fwd smoothing, length of fwds*/
TBadDayAndStubPos badDayAndStubPos, /* (I) Bad day conv + stub pos */
char *holidayFile) /* (I) See JpmcdsBusinessDay */
{
static char routine[] = "JpmcdsZCSwaps";
int status=FAILURE; /* until proven successful */
int offset; /* offset in array of swap rates */
TInterpData *interpData=NULL; /* interpolation data for zero rates */
TDate lastStubDate;
TCurve *tcSwaps = NULL;
ZCurve *zcSwaps = NULL;
TBadDayList *badDayList = NULL;
long badDayConv;
TStubPos stubPos;
if (numSwaps == 0) /* nothing to add */
{
tcSwaps = JpmcdsCopyCurve (zeroCurve);
return tcSwaps;
}
if (JpmcdsBadDayAndStubPosSplit(badDayAndStubPos, &badDayConv, &stubPos) != SUCCESS)
goto done;
/* Check inputs */
if (CheckZCSwapsInputs(
zeroCurve,
discZC,
dates,
rates,
numSwaps,
fixedSwapFreq,
floatSwapFreq,
fixDayCountConv,
floatDayCountConv,
fwdLength,
badDayConv,
holidayFile)==FAILURE)
{
goto done;
}
/* convert the input TCurve into a ZCurve so we can call all the usual zero curve routines */
zcSwaps = JpmcdsZCFromTCurve(zeroCurve);
if (zcSwaps == NULL)
{
JpmcdsErrMsg("%s: failed to make ZCurve structure from input TCurve.\n", routine);
goto done;
}
/* only want to add swap points not already covered by stub curve,
don't want to replace anything in the existing curve */
if (zeroCurve->fNumItems < 1)
{
lastStubDate = zeroCurve->fBaseDate;
}
else
{
lastStubDate = zeroCurve->fArray[zeroCurve->fNumItems-1].fDate;
}
offset = 0;
while (numSwaps > 0 && dates[offset] < lastStubDate)
{
offset++;
numSwaps--;
}
if (numSwaps > 0)
{
if (JpmcdsZCAddSwaps(zcSwaps,
discZC,
&dates[offset],
&rates[offset],
numSwaps,
fixedSwapFreq,
floatSwapFreq,
fixDayCountConv,
floatDayCountConv,
JPMCDS_FLAT_FORWARDS,
interpData,
badDayList,
badDayAndStubPos,
holidayFile)==FAILURE)
{
goto done;
}
}
tcSwaps = JpmcdsZCToTCurve(zcSwaps);
if (tcSwaps == NULL)
{
JpmcdsErrMsg("%s: couldn't make a TCurve copy of swaps zero curve.\n", routine);
goto done;
}
status = SUCCESS;
goto done;
done:
FREE(interpData);
if (status == FAILURE)
{
JpmcdsFreeTCurve(tcSwaps);
tcSwaps = NULL;
JpmcdsErrMsg("%s: Failed.\n", routine);
}
JpmcdsZCFree(zcSwaps);
return tcSwaps;
}
/*
***************************************************************************
** Store data for addin object. Returns handle (NULL if error).
***************************************************************************
*/
char* StoreObject(char* name, void* data)
{
static char *routine = "StoreObject";
int status = FAILURE;
char *handle = NULL;
TObject *node;
static char buffer[255];
if (data == NULL)
{
JpmcdsErrMsg("%s: No data to store provided.\n", routine);
goto done;
}
if (name == NULL)
{
JpmcdsErrMsg("%s: No object name provided.\n", routine);
goto done;
}
if (strlen(name) > 200)
{
JpmcdsErrMsg("%s: Object name cannot exceed 200 characters.\n", routine);
goto done;
}
node = FindNode(name);
if (node == NULL)
{
node = NEW(TObject);
if (node == NULL)
goto done;
node->name = strdup(name);
node->version = 1;
node->data = data;
node->next = cache;
cache = node;
}
else
{
node->version += 1;
JpmcdsFreeTCurve((TCurve*)(node->data));
node->data = data;
}
sprintf(buffer, "%s%c%d\0", node->name, SEPARATOR, node->version);
handle = strdup(buffer);
if (handle == NULL)
goto done;
strcpy(handle, buffer);
status = SUCCESS;
done:
if (status != SUCCESS)
{
JpmcdsErrMsg("%s: Failed!\n", routine);
FREE(handle);
handle = NULL;
}
return handle;
}
