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use crate::consistency::Consistency;
use crate::error::{Error as CError, Result as CResult};
use crate::frame::frame_batch::{BatchQuery, BatchQuerySubj, BatchType, BodyReqBatch};
use crate::query::{QueryFlags, QueryValues};
use crate::types::{CBytesShort, CStringLong};
pub type QueryBatch = BodyReqBatch;
#[derive(Debug)]
pub struct BatchQueryBuilder {
batch_type: BatchType,
queries: Vec<BatchQuery>,
consistency: Consistency,
serial_consistency: Option<Consistency>,
timestamp: Option<i64>,
}
impl BatchQueryBuilder {
pub fn new() -> BatchQueryBuilder {
BatchQueryBuilder {
batch_type: BatchType::Logged,
queries: vec![],
consistency: Consistency::One,
serial_consistency: None,
timestamp: None,
}
}
pub fn batch_type(mut self, batch_type: BatchType) -> Self {
self.batch_type = batch_type;
self
}
pub fn add_query<T: Into<String>>(mut self, query: T, values: QueryValues) -> Self {
self.queries.push(BatchQuery {
is_prepared: false,
subject: BatchQuerySubj::QueryString(CStringLong::new(query.into())),
values,
});
self
}
pub fn add_query_prepared(mut self, query_id: CBytesShort, values: QueryValues) -> Self {
self.queries.push(BatchQuery {
is_prepared: true,
subject: BatchQuerySubj::PreparedId(query_id),
values,
});
self
}
pub fn clear_queries(mut self) -> Self {
self.queries = vec![];
self
}
pub fn consistency(mut self, consistency: Consistency) -> Self {
self.consistency = consistency;
self
}
pub fn serial_consistency(mut self, serial_consistency: Option<Consistency>) -> Self {
self.serial_consistency = serial_consistency;
self
}
pub fn timestamp(mut self, timestamp: Option<i64>) -> Self {
self.timestamp = timestamp;
self
}
pub fn finalize(self) -> CResult<BodyReqBatch> {
let mut flags = vec![];
if self.serial_consistency.is_some() {
flags.push(QueryFlags::WithSerialConsistency);
}
if self.timestamp.is_some() {
flags.push(QueryFlags::WithDefaultTimestamp);
}
let with_names_for_values = self.queries.iter().all(|q| q.values.with_names());
if !with_names_for_values {
let some_names_for_values = self.queries.iter().any(|q| q.values.with_names());
if some_names_for_values {
return Err(CError::General(String::from(
"Inconsistent query values - mixed \
with and without names values",
)));
}
}
if with_names_for_values {
flags.push(QueryFlags::WithNamesForValues);
}
Ok(BodyReqBatch {
batch_type: self.batch_type,
queries: self.queries,
query_flags: flags,
consistency: self.consistency,
serial_consistency: self.serial_consistency,
timestamp: self.timestamp,
})
}
}