JNIEXPORT jint JNICALL Java_gov_lbl_fastbit_FastBit_number_1of_1rows
(JNIEnv * env, jobject jo, jstring jdir) {
jint ierr;
jboolean iscopy;
const char *cdir;
if (jdir == 0) {
ierr = -1;
return ierr;
}
cdir = (*env)->GetStringUTFChars(env, jdir, &iscopy);
ierr = fastbit_rows_in_partition(cdir);
(*env)->ReleaseStringUTFChars(env, jdir, cdir);
return ierr;
} /* Java_gov_lbl_fastbit_FastBit_number_1of_1rows */
/** Create a set of sample data and run some canned queries.
The sample data contains 100 rows and 3 columns. The columns are named
'a', 'b', and 'c'. They are of types 'int', 'short', and 'float'
respectively. The columns a and b have values 0, ..., 99 and column c
has values 100, 99, ..., 1.
*/
static void builtin(const char *nm, FILE* output) {
int nerrors = 0;
int i, mult;
int32_t ivals[100];
int16_t svals[100];
float fvals[100];
const char *dir = "tmp";
int counts[] = {5, 24, 19, 10, 50};
const char* conditions[] =
{"a<5", "a+b>150", "a < 60 and c < 60", "c > 90", "c > a"};
/* prepare a sample data */
for (i = 0; i < 100; ++ i) {
ivals[i] = i;
svals[i] = (int16_t) i;
fvals[i] = (float) (1e2 - i);
}
fastbit_add_values("a", "int", ivals, 100, 0);
fastbit_add_values("b", "short", svals, 100, 0);
fastbit_add_values("c", "float", fvals, 100, 0);
fastbit_flush_buffer(dir);
/* test the queries */
mult = fastbit_rows_in_partition(dir);
if (mult % 100 != 0) { /* no an exact multiple */
fprintf(output, "Directory %s contains %d rows, but expected 100, "
"remove the directory and try again\n", dir, mult);
return;
}
mult /= 100;
if (mult > 0) {
int nh1, nh2;
FastBitQueryHandle h1, h2;
for (i = 0; i < 5; ++ i) {
h1 = fastbit_build_query(0, dir, conditions[i]);
nh1 = fastbit_get_result_rows(h1);
if (nh1 != mult * counts[i]) {
++ nerrors;
fprintf(output, "%s: query \"%s\" on %d built-in records found "
"%d hits, but %d were expected\n", nm, conditions[i],
(int)(mult*100), nh1, (int)(mult*counts[i]));
}
fastbit_destroy_query(h1);
}
/* try the empty where clause */
h2 = fastbit_build_query(0, dir, 0);
nh2 = fastbit_get_result_rows(h2);
if (nh2 != 100 * mult) {
++ nerrors;
fprintf(output, "%s: query expected to return %d rows, "
"but got %d instead\n", nm, 100*mult, nh2);
}
fastbit_destroy_query(h2);
}
/* try to append the same data again */
fastbit_add_values("a", "int", ivals, 100, 0);
fastbit_add_values("b", "short", svals, 100, 0);
fastbit_add_values("c", "float", fvals, 100, 0);
fastbit_flush_buffer(dir);
/* test the same queries once more */
++ mult;
for (i = 0; i < 5; ++ i) {
FastBitQueryHandle h = fastbit_build_query(0, dir, conditions[i]);
int nhits = fastbit_get_result_rows(h);
if (nhits != mult * counts[i]) {
++ nerrors;
fprintf(output, "%s: query \"%s\" on %d built-in records found "
"%d hits, but %d were expected\n", nm, conditions[i],
(int)(mult*100), nhits, (int)(mult*counts[i]));
}
fastbit_destroy_query(h);
}
fprintf(output, "%s: built-in tests finished with nerrors = %d\n",
nm, nerrors);
} /* builtin */
