Performancing Metrics

Vamsi Tokala's blog: Siebel Correlation with custom code in LoadRunner

Monday, September 28, 2009

Siebel Correlation with custom code in LoadRunner

“Siebel _Star_Array” is a function generated by LoadRunner for correlating Siebel field values separated by Token "*". A sample format of the server response is given below and these field values are required to pass to the subsequent requests.

"1*N9*1-18506217*GEOFFTH4*Open10*Unassigned3*OEM12*Hardware-OEM14*Administrative1*01*010*Symptom X18*MSE-Perf7*GEOFFTH1*112*Geoff Thomas1*10*6* Normal19*10/16/2002 03:40:127*Sev - 47*1-13NY5"

Last Character/s (Highlighted in Red) in each of the fields denotes the length of the next field values. Because of which left and right boundaries will be dynamic and difficult to correlate.

The below "siebel _Star_Array” function provided with LoadRunner has some limitations and does not work at all times. It is it is tough to debug the errors without the source code

web_reg_save_param("WCSParam96",
"LB/IC=`ValueArray`",
"RB/IC=`",
"Ord=10",
"Search=Body",
"RelFrameId=1",
"AutoCorrelationFunction=flCorrelationCallbackParseStarArray",
LAST);

The sample code I had created can be used to parse the response and use it for correlation when compared to the Loadrunner Automactic Correlation

vuser_init()
{

char str[1024];
char separators[] = "*";
char *token;
char arrValues[50][20];
char arrFinalValues[50][20];
int i;
int j;
int length_old;
int length_new;
char newlength[2];
char actualValue[20];

/****************** Sample Text format****************************** */

strcpy(str, "1*N9*1-18506217*GEOFFTH4*Open10*Unassigned3*OEM12*Hardware-OEM14*Administrative1*01*010*Symptom X18*MSE-Perf7*GEOFFTH1*112*Geoff Thomas1*10*3 - Normal19*10/16/2002 03:40:127*Sev - 47*1-13NY5");

lr_output_message("%s",str);

/***** The following code will be used to split the text into strings based on the token *******/
token = (char *)strtok(str, separators); /* Get the first token */
if(!token) {
lr_output_message("No tokens found in string!");
return( -1 );
}

i=0;
while( token != NULL ) { /* While valid tokens are returned */
strcpy(arrValues[i],token);
lr_output_message("Initial array values is %s",arrValues[i]);
token = (char *)strtok(NULL, separators); /* Get the next token */
i++;
}

/*******************************************************************/
/*************** To remove Trail charecters ***********************/

for (j=0; j less than i; j++) //use lessthan sysmbol
{
if (j==0) {
strcpy(arrFinalValues[j],arrValues[j]);
length_old=strlen(arrValues[j]);
}
else{
length_new=strlen(arrValues[j]);
strncpy(arrFinalValues[j], arrValues[j], length_old);
if(length_new>length_old+1){
sprintf(newlength,"%c%c",arrValues[j][length_old],arrValues[j][length_old+1]);
length_old=atoi(newlength);
}
else{
sprintf(newlength,"%c",arrValues[j][length_old]);
length_old=atoi(newlength);
}//End of Else
}//End of Out Else
}//End of For

/* Final Data in the Array are */
for (j=0; j less than i; j++)//less than symbol
{
lr_output_message("Values after removing tail charecters %s",arrFinalValues[j]);
}
return 0;
}

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