JAVA-JNI-C

Hi All,

would appreciate help pls..

I am trying to prepare a JAVA-API wrapper on C-API for Remedy software.

i have asked some more questions on this also if you want to take a look at my other questions on the same subject.

I am trying to work on ARGetEntry.

This is what my C function looks like:


#include <stdlib.h>
#include <string.h>
#include <ar.h>
#include <arstruct.h>
#include <arextern.h>
#include <arfree.h>
#include <jni.h>
#include "NeTkt.h"

/*****************************************************************************/
/*                                                                           */
/*                                  PrintInt                                 */
/*                                                                           */
/*****************************************************************************/

void PrintInt(header, value)
char      *header;            /* IN; header string for the value */
int        value;             /* IN; value to print */

{
   printf("\nPrintInt\n");
   printf("%s %d\n", header, value);
}




/*****************************************************************************/
/*                                                                           */
/*                                 PrintChar                                 */
/*                                                                           */
/*****************************************************************************/

void PrintChar(header, value)
char      *header;            /* IN; header string for the value */
char      *value;             /* IN; value to print */

{
   printf("\nPrintChar\n");
   if (value == NULL)
      printf("%s\n", header);
   else
      printf("%s %s\n", value);
}


void PrintARValueStruct(header, value)
char          *header;        /* IN; header string for the value */
ARValueStruct *value;         /* IN; value to print */

{
   char  buff[82];         /* buffer to hold second line header */

   printf("%sValue:  ", header);
   printf("%sValue 1:  ", value);


   switch (value->dataType)
   {
      case AR_DATA_TYPE_NULL    :  /* NULL value (incl. no default) */
        printf("NULL\n");
         break;
      case AR_DATA_TYPE_KEYWORD :
         PrintInt("(keyword)  ", value->u.keyNum);
         break;
      case AR_DATA_TYPE_CHAR    :
         printf("(char) %s ", value->u.charVal);
         //return value->u.charVal;
         break;
      default                   :
         printf("<undefined data type tag = %u>\n",
                           value->dataType);
         break;
   }

}

void PrintARInternalId(header, value)
char        *header;          /* IN; header string for the value */
ARInternalId value;           /* IN; value to print */

{
   printf("%s %lu\n", header, value);
}

void PrintARFieldValueStruct(value)
ARFieldValueStruct *value;    /* IN; value to print */

{
   printf("Field Value Struct:\n");

  PrintARInternalId("   Field Id :", value->fieldId);



   if ((value->fieldId == AR_CORE_STATUS_HISTORY) &&
       (value->value.dataType == AR_DATA_TYPE_CHAR))
      printf("   Value: ", value->value.u.charVal);
   else
      PrintARValueStruct("   ", &value->value);

}

void PrintARFieldValueList(value)
ARFieldValueList *value;      /* IN; value to print */

{
   int                 i;      /* working index */
   ARFieldValueStruct *tempPtr;/* working pointer */
     printf("Field Value List : %u items\n", value);

   printf("Field Value List : %u items\n", value->numItems);


   if (value->numItems != 0)
   {
      tempPtr = value->fieldValueList;
      for (i = 0; i < (int) value->numItems; i++)
      {
         PrintARFieldValueStruct(tempPtr);
         tempPtr++;
      }
   }

}



JNIEXPORT void JNICALL Java_NeTkt_Initialize(JNIEnv *env,jobject obj,
       jstring jRemedyServer, jstring jRemedyUser, jstring jRemedyPassword, jstring jSchemaName, jstring jeid)
{

printf("Hello world for different method!\n");



ARStatusList status;
ARControlStruct control;
int result;

 const char *sRemedyUser = (*env)->GetStringUTFChars(env, jRemedyUser, 0);
 const char *sRemedyPassword = (*env)->GetStringUTFChars(env, jRemedyPassword, 0);
 const char *sRemedyServer = (*env)->GetStringUTFChars(env, jRemedyServer, 0);
 const char *sSchemaName = (*env)->GetStringUTFChars(env, jSchemaName, 0);
 const char *seid = (*env)->GetStringUTFChars(env, jeid, 0);
 const char *sResult="";

printf(sRemedyUser);
printf("\n");
printf(sRemedyPassword);
printf("\n");
printf(sRemedyServer);
printf("\n");
printf(sSchemaName);
printf("\n");
printf(seid);
printf("\n");


control.cacheId = 0;
control.sessionId = 0;
strcpy(control.user, sRemedyUser);
strcpy(control.password, sRemedyPassword);
strcpy(control.language, "");
strcpy(control.server, sRemedyServer);


result = ARInitialization(&control, &status);

switch (result)
   {
      case AR_RETURN_OK         :
         printf("OK\n");
         break;
      case AR_RETURN_WARNING    :
         printf("WARNING\n");
         break;
      case AR_RETURN_ERROR      :
         printf("ERROR\n");
         break;
      case AR_RETURN_FATAL      :
         printf("FATAL\n");
         break;
      case AR_RETURN_BAD_STATUS :
         printf("BAD STATUS\n");
         break;
      default                   :
         printf("<unknown return>\n");
         break;
   }



/* Verify user/password/server */
result=ARVerifyUser(&control, NULL,NULL,NULL,&status);

switch (result)
   {
      case AR_RETURN_OK         :
         printf("OK\n");
         break;
      case AR_RETURN_WARNING    :
         printf("WARNING\n");
         break;
      case AR_RETURN_ERROR      :
         printf("ERROR\n");
         break;
      case AR_RETURN_FATAL      :
         printf("FATAL\n");
         break;
      case AR_RETURN_BAD_STATUS :
         printf("BAD STATUS\n");
         break;
      default                   :
         printf("<unknown return>\n");
         break;
   }



/* Set the entryid of the record we want */

AREntryIdList entryId;
entryId.numItems = 1;
entryId.entryIdList = (AREntryIdType *) calloc(1, sizeof(AREntryIdType));
strncpy( entryId.entryIdList[0], seid, AR_MAX_ENTRYID_SIZE );

entryId.entryIdList[0][AR_MAX_ENTRYID_SIZE] = '\0';



/* Get the entry */

ARFieldValueList fieldValues;

result = ARGetEntry(&control, sSchemaName, &entryId, NULL, &fieldValues, &status);

switch (result)
   {
      case AR_RETURN_OK         :
         printf("OK\n");
         break;
      case AR_RETURN_WARNING    :
         printf("WARNING\n");
         break;
      case AR_RETURN_ERROR      :
         printf("ERROR\n");
         break;
      case AR_RETURN_FATAL      :
         printf("FATAL\n");
         break;
      case AR_RETURN_BAD_STATUS :
         printf("BAD STATUS\n");
         break;
      default                   :
         printf("<unknown return>\n");
         break;
   }


if(result >= AR_RETURN_ERROR) {
 printf("\nEntry Error\n");
} else {
      printf("Got Entry");
 PrintARFieldValueList(fieldValues);
}
//return;

/*
jclass cls = (*env)->GetObjectClass(env, obj);
  jmethodID mid = (*env)->GetMethodID(env, cls, "method1", "(Ljava/lang/Object;)V");
  if (mid == 0) {
    return;
  }

printf("\nIn C, depth = %d, about to enter Java\n", 0);
jobject callbackArg = (*env)->NewObject(env, fieldValues);
(*env)->CallVoidMethod(env, obj, mid, callbackArg);

*/
}





Now this fieldValue (which is of Type ARFieldValueList).. I am wondering How to deal with this.

Defination for C API and data types for Remedy can be found at

http://remedy.ncsu.edu/html/ver4/PDF/programmers.pdf


would appreciate help here plz..

regards