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use cassandra::data_type::ConstDataType;
use cassandra::iterator::AggregateIterator;
use cassandra::iterator::FieldIterator;
use cassandra::iterator::FunctionIterator;
use cassandra::iterator::TableIterator;
use cassandra::iterator::UserTypeIterator;
use cassandra::schema::aggregate_meta::AggregateMeta;
use cassandra::schema::function_meta::FunctionMeta;
use cassandra::schema::table_meta::TableMeta;
use cassandra::util::Protected;
use cassandra_sys::CassKeyspaceMeta as _CassKeyspaceMeta;
use cassandra_sys::CassValue as _CassValue;
use cassandra_sys::cass_iterator_aggregates_from_keyspace_meta;
use cassandra_sys::cass_iterator_fields_from_keyspace_meta;
use cassandra_sys::cass_iterator_functions_from_keyspace_meta;
use cassandra_sys::cass_iterator_tables_from_keyspace_meta;
use cassandra_sys::cass_iterator_user_types_from_keyspace_meta;
use cassandra_sys::cass_keyspace_meta_aggregate_by_name;
use cassandra_sys::cass_keyspace_meta_field_by_name;
use cassandra_sys::cass_keyspace_meta_function_by_name;
use cassandra_sys::cass_keyspace_meta_name;
use cassandra_sys::cass_keyspace_meta_table_by_name;
use cassandra_sys::cass_keyspace_meta_user_type_by_name;
use cassandra_sys::raw2utf8;
use std::ffi::CString;
use std::mem;
#[derive(Debug)]
pub struct KeyspaceMeta(*const _CassKeyspaceMeta);
impl Protected<*const _CassKeyspaceMeta> for KeyspaceMeta {
fn inner(&self) -> *const _CassKeyspaceMeta { self.0 }
fn build(inner: *const _CassKeyspaceMeta) -> Self { KeyspaceMeta(inner) }
}
#[derive(Debug)]
pub struct MetadataFieldValue(*const _CassValue);
impl KeyspaceMeta {
pub fn aggregrates_iter(&self) -> AggregateIterator {
unsafe { AggregateIterator::build(cass_iterator_aggregates_from_keyspace_meta(self.0)) }
}
pub fn fields_iter(&self) -> FieldIterator {
unsafe { FieldIterator::build(cass_iterator_fields_from_keyspace_meta(self.0)) }
}
pub fn table_by_name(&self, name: &str) -> Option<TableMeta> {
unsafe {
let value = cass_keyspace_meta_table_by_name(self.0, CString::new(name).expect("must be utf8").as_ptr());
if value.is_null() {
None
} else {
Some(TableMeta::build(value))
}
}
}
pub fn user_type_by_name(&self, name: &str) -> Option<ConstDataType> {
unsafe {
let value = cass_keyspace_meta_user_type_by_name(self.0,
CString::new(name).expect("must be utf8").as_ptr());
if value.is_null() {
None
} else {
Some(ConstDataType(value))
}
}
}
pub fn get_function_by_name(&self, name: &str, arguments: Vec<&str>) -> Option<FunctionMeta> {
unsafe {
let value = cass_keyspace_meta_function_by_name(self.0,
CString::new(name).expect("must be utf8").as_ptr(),
CString::new(arguments.join(","))
.expect("must be utf8")
.as_ptr());
if value.is_null() {
None
} else {
Some(FunctionMeta::build(value))
}
}
}
pub fn aggregate_by_name(&self, name: &str, arguments: Vec<&str>) -> Option<AggregateMeta> {
unsafe {
let agg = cass_keyspace_meta_aggregate_by_name(self.0,
CString::new(name).expect("must be utf8").as_ptr(),
CString::new(arguments.join(","))
.expect("must be utf8")
.as_ptr());
if agg.is_null() {
None
} else {
Some(AggregateMeta::build((agg)))
}
}
}
pub fn table_iter(&mut self) -> TableIterator {
unsafe { TableIterator::build(cass_iterator_tables_from_keyspace_meta(self.0)) }
}
pub fn function_iter(&mut self) -> FunctionIterator {
unsafe { FunctionIterator::build(cass_iterator_functions_from_keyspace_meta(self.0)) }
}
pub fn user_type_iter(&mut self) -> UserTypeIterator {
unsafe { UserTypeIterator::build(cass_iterator_user_types_from_keyspace_meta(self.0)) }
}
pub fn name(&self) -> String {
unsafe {
let mut name = mem::zeroed();
let mut name_length = mem::zeroed();
cass_keyspace_meta_name(self.0, &mut name, &mut name_length);
raw2utf8(name, name_length).expect("must be utf8")
}
}
pub fn field_by_name(&self, name: &str) -> Option<MetadataFieldValue> {
unsafe {
let value = cass_keyspace_meta_field_by_name(self.0, CString::new(name).expect("must be utf8").as_ptr());
if value.is_null() {
None
} else {
Some(MetadataFieldValue(value))
}
}
}
}