src/c-apps/osrf_dbmath.c

   1 #include "opensrf/osrf_app_session.h"
   2 #include "opensrf/osrf_application.h"
   3 #include "objson/object.h"
   4
   5 int initialize();
   6 int childInit();
   7 int osrfMathRun( osrfMethodDispatcher* );
   8
   9
  10 int initialize() {
  11         osrfAppRegisterMethod( "opensrf.dbmath", "add", "osrfMathRun", "send 2 numbers and I'll add them", 2 );
  12         osrfAppRegisterMethod( "opensrf.dbmath", "sub", "osrfMathRun", "send 2 numbers and I'll divide them", 2 );
  13         osrfAppRegisterMethod( "opensrf.dbmath", "mult", "osrfMathRun", "send 2 numbers and I'll multiply them", 2 );
  14         osrfAppRegisterMethod( "opensrf.dbmath", "div", "osrfMathRun", "send 2 numbers and I'll subtract them", 2 );
  15         return 0;
  16 }
  17
  18 int childInit() {
  19         return 0;
  20 }
  21
  22 int osrfMathRun( osrfMethodDispatcher* d ) {
  23
  24         OSRF_METHOD_VERIFY_DISPATCHER(d);
  25
  26         jsonObject* x = jsonObjectGetIndex(params, 0);
  27         jsonObject* y = jsonObjectGetIndex(params, 1);
  28
  29         if( x && y ) {
  30
  31                 char* a = jsonObjectToSimpleString(x);
  32                 char* b = jsonObjectToSimpleString(y);
  33
  34                 if( a && b ) {
  35
  36                         double i = strtod(a, NULL);
  37                         double j = strtod(b, NULL);
  38                         double r = 0;
  39
  40                         if(!strcmp(method->name, "add"))                r = i + j;
  41                         if(!strcmp(method->name, "sub"))                r = i - j;
  42                         if(!strcmp(method->name, "mult"))       r = i * j;
  43                         if(!strcmp(method->name, "div"))                r = i / j;
  44
  45                         jsonObject* resp = jsonNewNumberObject(r);
  46                         osrfAppRequestRespond( session, request, resp );
  47                         jsonObjectFree(resp);
  48
  49                         free(a); free(b);
  50                         return 0;
  51                 }
  52         }
  53
  54         return -1;
  55 }
  56
  57
  58