static int test_map(void)
{
avro_schema_t schema = avro_schema_map(avro_schema_long());
avro_datum_t datum = avro_map(schema);
int64_t i = 0;
char *nums[] =
{ "zero", "one", "two", "three", "four", "five", "six", NULL };
while (nums[i]) {
avro_datum_t i_datum = avro_int64(i);
avro_map_set(datum, nums[i], i_datum);
avro_datum_decref(i_datum);
i++;
}
if (avro_array_size(datum) != 7) {
fprintf(stderr, "Unexpected map size\n");
exit(EXIT_FAILURE);
}
avro_datum_t value;
const char *key;
avro_map_get_key(datum, 2, &key);
avro_map_get(datum, key, &value);
int64_t val;
avro_int64_get(value, &val);
if (val != 2) {
fprintf(stderr, "Unexpected map value 2\n");
exit(EXIT_FAILURE);
}
int index;
if (avro_map_get_index(datum, "two", &index)) {
fprintf(stderr, "Can't get index for key \"two\": %s\n",
avro_strerror());
exit(EXIT_FAILURE);
}
if (index != 2) {
fprintf(stderr, "Unexpected index for key \"two\"\n");
exit(EXIT_FAILURE);
}
if (!avro_map_get_index(datum, "foobar", &index)) {
fprintf(stderr, "Unexpected index for key \"foobar\"\n");
exit(EXIT_FAILURE);
}
write_read_check(schema, datum, NULL, NULL, "map");
test_json(datum,
"{\"zero\": 0, \"one\": 1, \"two\": 2, \"three\": 3, "
"\"four\": 4, \"five\": 5, \"six\": 6}");
avro_datum_decref(datum);
avro_schema_decref(schema);
return 0;
}
static int
avro_datum_value_get_long(const avro_value_iface_t *iface,
const void *vself, int64_t *out)
{
AVRO_UNUSED(iface);
const avro_datum_t self = (const avro_datum_t) vself;
check_param(EINVAL, self, "datum instance");
int rval;
int64_t value;
check(rval, avro_int64_get(self, &value));
*out = value;
return 0;
}
/*输出数据库中的学生信息*/
int show_student(avro_file_reader_t db,
avro_schema_t reader_schema)
{
int rval;
avro_datum_t student;
rval = avro_file_reader_read(db, reader_schema, &student);
if (rval == 0) {
int64_t i64;
int32_t i32;
char *p;
avro_datum_t sid_datum, name_datum, dept_datum,
phone_datum, age_datum;
if (avro_record_get(student, "SID", &sid_datum) == 0) {
avro_int64_get(sid_datum, &i64);
fprintf(stdout, "%"PRId64" ", i64);
}
if (avro_record_get(student, "Name", &name_datum) == 0) {
avro_string_get(name_datum, &p);
fprintf(stdout, "%12s ", p);
}
if (avro_record_get(student, "Dept", &dept_datum) == 0) {
avro_string_get(dept_datum, &p);
fprintf(stdout, "%12s ", p);
}
if (avro_record_get(student, "Phone", &phone_datum) == 0) {
avro_string_get(phone_datum, &p);
fprintf(stdout, "%12s ", p);
}
if (avro_record_get(student, "Age", &age_datum) == 0) {
avro_int32_get(age_datum, &i32);
fprintf(stdout, "%d", i32);
}
fprintf(stdout, "\n");
/*释放记录*/
avro_datum_decref(student);
}
return rval;
}
