static int
avro_datum_value_append(const avro_value_iface_t *iface,
void *vself, avro_value_t *child_out, size_t *new_index)
{
AVRO_UNUSED(iface);
avro_datum_t self = (avro_datum_t) vself;
check_param(EINVAL, self, "datum instance");
if (!is_avro_array(self)) {
avro_set_error("Can only append to array");
return EINVAL;
}
int rval;
avro_schema_t array_schema = avro_datum_get_schema(self);
avro_schema_t child_schema = avro_schema_array_items(array_schema);
avro_datum_t child_datum = avro_datum_from_schema(child_schema);
if (child_datum == NULL) {
return ENOMEM;
}
rval = avro_array_append_datum(self, child_datum);
avro_datum_decref(child_datum);
if (rval != 0) {
return rval;
}
if (new_index != NULL) {
*new_index = avro_array_size(self) - 1;
}
return avro_datum_as_child_value(child_out, child_datum);
}
static int
avro_datum_value_get_size(const avro_value_iface_t *iface,
const void *vself, size_t *size)
{
AVRO_UNUSED(iface);
const avro_datum_t self = (const avro_datum_t) vself;
check_param(EINVAL, self, "datum instance");
if (is_avro_array(self)) {
*size = avro_array_size(self);
return 0;
}
if (is_avro_map(self)) {
*size = avro_map_size(self);
return 0;
}
if (is_avro_record(self)) {
avro_schema_t schema = avro_datum_get_schema(self);
*size = avro_schema_record_size(schema);
return 0;
}
avro_set_error("Can only get size of array, map, or record, %d", avro_typeof(self));
return EINVAL;
}
static int
avro_datum_value_get_by_index(const avro_value_iface_t *iface,
const void *vself, size_t index,
avro_value_t *child, const char **name)
{
AVRO_UNUSED(iface);
const avro_datum_t self = (const avro_datum_t) vself;
check_param(EINVAL, self, "datum instance");
int rval;
avro_datum_t child_datum;
if (is_avro_array(self)) {
check(rval, avro_array_get(self, index, &child_datum));
return avro_datum_as_child_value(child, child_datum);
}
if (is_avro_map(self)) {
const char *real_key;
check(rval, avro_map_get_key(self, index, &real_key));
if (name != NULL) {
*name = real_key;
}
check(rval, avro_map_get(self, real_key, &child_datum));
return avro_datum_as_child_value(child, child_datum);
}
if (is_avro_record(self)) {
avro_schema_t schema = avro_datum_get_schema(self);
const char *field_name =
avro_schema_record_field_name(schema, index);
if (field_name == NULL) {
return EINVAL;
}
if (name != NULL) {
*name = field_name;
}
check(rval, avro_record_get(self, field_name, &child_datum));
return avro_datum_as_child_value(child, child_datum);
}
avro_set_error("Can only get by index from array, map, or record");
return EINVAL;
}
int avro_schema_equal(avro_schema_t a, avro_schema_t b)
{
if (!a || !b) {
/*
* this is an error. protecting from segfault.
*/
return 0;
} else if (a == b) {
/*
* an object is equal to itself
*/
return 1;
} else if (avro_typeof(a) != avro_typeof(b)) {
return 0;
} else if (is_avro_record(a)) {
return schema_record_equal(avro_schema_to_record(a),
avro_schema_to_record(b));
} else if (is_avro_enum(a)) {
return schema_enum_equal(avro_schema_to_enum(a),
avro_schema_to_enum(b));
} else if (is_avro_fixed(a)) {
return schema_fixed_equal(avro_schema_to_fixed(a),
avro_schema_to_fixed(b));
} else if (is_avro_map(a)) {
return schema_map_equal(avro_schema_to_map(a),
avro_schema_to_map(b));
} else if (is_avro_array(a)) {
return schema_array_equal(avro_schema_to_array(a),
avro_schema_to_array(b));
} else if (is_avro_union(a)) {
return schema_union_equal(avro_schema_to_union(a),
avro_schema_to_union(b));
} else if (is_avro_link(a)) {
return schema_link_equal(avro_schema_to_link(a),
avro_schema_to_link(b));
}
return 1;
}
const char *avro_schema_type_name(const avro_schema_t schema)
{
if (is_avro_record(schema)) {
return (avro_schema_to_record(schema))->name;
} else if (is_avro_enum(schema)) {
return (avro_schema_to_enum(schema))->name;
} else if (is_avro_fixed(schema)) {
return (avro_schema_to_fixed(schema))->name;
} else if (is_avro_union(schema)) {
return "union";
} else if (is_avro_array(schema)) {
return "array";
} else if (is_avro_map(schema)) {
return "map";
} else if (is_avro_int32(schema)) {
return "int";
} else if (is_avro_int64(schema)) {
return "long";
} else if (is_avro_float(schema)) {
return "float";
} else if (is_avro_double(schema)) {
return "double";
} else if (is_avro_boolean(schema)) {
return "boolean";
} else if (is_avro_null(schema)) {
return "null";
} else if (is_avro_string(schema)) {
return "string";
} else if (is_avro_bytes(schema)) {
return "bytes";
} else if (is_avro_link(schema)) {
avro_schema_t target = avro_schema_link_target(schema);
return avro_schema_type_name(target);
}
avro_set_error("Unknown schema type");
return NULL;
}
avro_schema_t avro_schema_get_subschema(const avro_schema_t schema,
const char *name)
{
if (is_avro_record(schema)) {
const struct avro_record_schema_t *rschema =
avro_schema_to_record(schema);
union {
st_data_t data;
struct avro_record_field_t *field;
} field;
if (st_lookup(rschema->fields_byname,
(st_data_t) name, &field.data))
{
return field.field->type;
}
avro_set_error("No record field named %s", name);
return NULL;
} else if (is_avro_union(schema)) {
const struct avro_union_schema_t *uschema =
avro_schema_to_union(schema);
long i;
for (i = 0; i < uschema->branches->num_entries; i++) {
union {
st_data_t data;
avro_schema_t schema;
} val;
st_lookup(uschema->branches, i, &val.data);
if (strcmp(avro_schema_type_name(val.schema),
name) == 0)
{
return val.schema;
}
}
avro_set_error("No union branch named %s", name);
return NULL;
} else if (is_avro_array(schema)) {
if (strcmp(name, "[]") == 0) {
const struct avro_array_schema_t *aschema =
avro_schema_to_array(schema);
return aschema->items;
}
avro_set_error("Array subschema must be called \"[]\"");
return NULL;
} else if (is_avro_map(schema)) {
if (strcmp(name, "{}") == 0) {
const struct avro_map_schema_t *mschema =
avro_schema_to_map(schema);
return mschema->values;
}
avro_set_error("Map subschema must be called \"{}\"");
return NULL;
}
avro_set_error("Can only retrieve subschemas from record, union, array, or map");
return NULL;
}
