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use consistency::Consistency;
use types::{to_bigint, to_int, to_short, CBytes};
use frame::AsByte;
use frame::IntoBytes;
use query::query_flags::QueryFlags;
use query::query_values::QueryValues;
#[derive(Debug, Default)]
pub struct QueryParams {
pub consistency: Consistency,
pub flags: Vec<QueryFlags>,
pub with_names: Option<bool>,
pub values: Option<QueryValues>,
pub page_size: Option<i32>,
pub paging_state: Option<CBytes>,
pub serial_consistency: Option<Consistency>,
pub timestamp: Option<i64>,
}
impl QueryParams {
pub fn set_values(&mut self, values: QueryValues) {
self.flags.push(QueryFlags::Value);
self.values = Some(values);
}
fn flags_as_byte(&self) -> u8 {
self.flags.iter().fold(0, |acc, flag| acc | flag.as_byte())
}
#[allow(dead_code)]
fn parse_query_flags(byte: u8) -> Vec<QueryFlags> {
let mut flags: Vec<QueryFlags> = vec![];
if QueryFlags::has_value(byte) {
flags.push(QueryFlags::Value);
}
if QueryFlags::has_skip_metadata(byte) {
flags.push(QueryFlags::SkipMetadata);
}
if QueryFlags::has_page_size(byte) {
flags.push(QueryFlags::PageSize);
}
if QueryFlags::has_with_paging_state(byte) {
flags.push(QueryFlags::WithPagingState);
}
if QueryFlags::has_with_serial_consistency(byte) {
flags.push(QueryFlags::WithSerialConsistency);
}
if QueryFlags::has_with_default_timestamp(byte) {
flags.push(QueryFlags::WithDefaultTimestamp);
}
if QueryFlags::has_with_names_for_values(byte) {
flags.push(QueryFlags::WithNamesForValues);
}
flags
}
}
impl IntoBytes for QueryParams {
fn into_cbytes(&self) -> Vec<u8> {
let mut v: Vec<u8> = vec![];
v.extend_from_slice(self.consistency.into_cbytes().as_slice());
v.push(self.flags_as_byte());
if QueryFlags::has_value(self.flags_as_byte()) {
if let Some(ref values) = self.values {
v.extend_from_slice(to_short(values.len() as i16).as_slice());
v.extend_from_slice(values.into_cbytes().as_slice());
}
}
if QueryFlags::has_page_size(self.flags_as_byte()) && self.page_size.is_some() {
v.extend_from_slice(to_int(self.page_size
.clone()
.unwrap())
.as_slice());
}
if QueryFlags::has_with_paging_state(self.flags_as_byte()) && self.paging_state.is_some() {
v.extend_from_slice(self.paging_state
.clone()
.unwrap()
.into_cbytes()
.as_slice());
}
if QueryFlags::has_with_serial_consistency(self.flags_as_byte())
&& self.serial_consistency.is_some() {
v.extend_from_slice(self.serial_consistency
.clone()
.unwrap()
.into_cbytes()
.as_slice());
}
if QueryFlags::has_with_default_timestamp(self.flags_as_byte()) && self.timestamp.is_some() {
v.extend_from_slice(to_bigint(self.timestamp.unwrap()).as_slice());
}
v
}
}