use std::sync::Arc;
use hyper::{Body, Request, Response, StatusCode};
use serde::{Deserialize, Serialize};
use garage_util::data::*;
use garage_util::error::Error as GarageError;
use garage_table::{EnumerationOrder, TableSchema};
use garage_model::garage::Garage;
use garage_model::k2v::causality::*;
use garage_model::k2v::item_table::*;
use crate::error::*;
use crate::k2v::range::read_range;
pub async fn handle_insert_batch(
garage: Arc<Garage>,
bucket_id: Uuid,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let body = hyper::body::to_bytes(req.into_body()).await?;
let items: Vec<InsertBatchItem> =
serde_json::from_slice(&body).ok_or_bad_request("Invalid JSON")?;
let mut items2 = vec![];
for it in items {
let ct = it
.ct
.map(|s| CausalContext::parse(&s))
.transpose()
.ok_or_bad_request("Invalid causality token")?;
let v = match it.v {
Some(vs) => {
DvvsValue::Value(base64::decode(vs).ok_or_bad_request("Invalid base64 value")?)
}
None => DvvsValue::Deleted,
};
items2.push((it.pk, it.sk, ct, v));
}
garage.k2v.rpc.insert_batch(bucket_id, items2).await?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::empty())?)
}
pub async fn handle_read_batch(
garage: Arc<Garage>,
bucket_id: Uuid,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let body = hyper::body::to_bytes(req.into_body()).await?;
let queries: Vec<ReadBatchQuery> =
serde_json::from_slice(&body).ok_or_bad_request("Invalid JSON")?;
let resp_results = futures::future::join_all(
queries
.into_iter()
.map(|q| handle_read_batch_query(&garage, bucket_id, q)),
)
.await;
let mut resps: Vec<ReadBatchResponse> = vec![];
for resp in resp_results {
resps.push(resp?);
}
let resp_json = serde_json::to_string_pretty(&resps).map_err(GarageError::from)?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::from(resp_json))?)
}
async fn handle_read_batch_query(
garage: &Arc<Garage>,
bucket_id: Uuid,
query: ReadBatchQuery,
) -> Result<ReadBatchResponse, Error> {
let partition = K2VItemPartition {
bucket_id,
partition_key: query.partition_key.clone(),
};
let filter = ItemFilter {
exclude_only_tombstones: !query.tombstones,
conflicts_only: query.conflicts_only,
};
let (items, more, next_start) = if query.single_item {
if query.prefix.is_some() || query.end.is_some() || query.limit.is_some() || query.reverse {
return Err(Error::BadRequest("Batch query parameters 'prefix', 'end', 'limit' and 'reverse' must not be set when singleItem is true.".into()));
}
let sk = query
.start
.as_ref()
.ok_or_bad_request("start should be specified if single_item is set")?;
let item = garage
.k2v
.item_table
.get(&partition, sk)
.await?
.filter(|e| K2VItemTable::matches_filter(e, &filter));
match item {
Some(i) => (vec![ReadBatchResponseItem::from(i)], false, None),
None => (vec![], false, None),
}
} else {
let (items, more, next_start) = read_range(
&garage.k2v.item_table,
&partition,
&query.prefix,
&query.start,
&query.end,
query.limit,
Some(filter),
EnumerationOrder::from_reverse(query.reverse),
)
.await?;
let items = items
.into_iter()
.map(ReadBatchResponseItem::from)
.collect::<Vec<_>>();
(items, more, next_start)
};
Ok(ReadBatchResponse {
partition_key: query.partition_key,
prefix: query.prefix,
start: query.start,
end: query.end,
limit: query.limit,
reverse: query.reverse,
single_item: query.single_item,
conflicts_only: query.conflicts_only,
tombstones: query.tombstones,
items,
more,
next_start,
})
}
pub async fn handle_delete_batch(
garage: Arc<Garage>,
bucket_id: Uuid,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let body = hyper::body::to_bytes(req.into_body()).await?;
let queries: Vec<DeleteBatchQuery> =
serde_json::from_slice(&body).ok_or_bad_request("Invalid JSON")?;
let resp_results = futures::future::join_all(
queries
.into_iter()
.map(|q| handle_delete_batch_query(&garage, bucket_id, q)),
)
.await;
let mut resps: Vec<DeleteBatchResponse> = vec![];
for resp in resp_results {
resps.push(resp?);
}
let resp_json = serde_json::to_string_pretty(&resps).map_err(GarageError::from)?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::from(resp_json))?)
}
async fn handle_delete_batch_query(
garage: &Arc<Garage>,
bucket_id: Uuid,
query: DeleteBatchQuery,
) -> Result<DeleteBatchResponse, Error> {
let partition = K2VItemPartition {
bucket_id,
partition_key: query.partition_key.clone(),
};
let filter = ItemFilter {
exclude_only_tombstones: true,
conflicts_only: false,
};
let deleted_items = if query.single_item {
if query.prefix.is_some() || query.end.is_some() {
return Err(Error::BadRequest("Batch query parameters 'prefix' and 'end' must not be set when singleItem is true.".into()));
}
let sk = query
.start
.as_ref()
.ok_or_bad_request("start should be specified if single_item is set")?;
let item = garage
.k2v
.item_table
.get(&partition, sk)
.await?
.filter(|e| K2VItemTable::matches_filter(e, &filter));
match item {
Some(i) => {
let cc = i.causal_context();
garage
.k2v
.rpc
.insert(
bucket_id,
i.partition.partition_key,
i.sort_key,
Some(cc),
DvvsValue::Deleted,
)
.await?;
1
}
None => 0,
}
} else {
let (items, more, _next_start) = read_range(
&garage.k2v.item_table,
&partition,
&query.prefix,
&query.start,
&query.end,
None,
Some(filter),
EnumerationOrder::Forward,
)
.await?;
assert!(!more);
// TODO delete items
let items = items
.into_iter()
.map(|i| {
let cc = i.causal_context();
(
i.partition.partition_key,
i.sort_key,
Some(cc),
DvvsValue::Deleted,
)
})
.collect::<Vec<_>>();
let n = items.len();
garage.k2v.rpc.insert_batch(bucket_id, items).await?;
n
};
Ok(DeleteBatchResponse {
partition_key: query.partition_key,
prefix: query.prefix,
start: query.start,
end: query.end,
single_item: query.single_item,
deleted_items,
})
}
#[derive(Deserialize)]
struct InsertBatchItem {
pk: String,
sk: String,
ct: Option<String>,
v: Option<String>,
}
#[derive(Deserialize)]
struct ReadBatchQuery {
#[serde(rename = "partitionKey")]
partition_key: String,
#[serde(default)]
prefix: Option<String>,
#[serde(default)]
start: Option<String>,
#[serde(default)]
end: Option<String>,
#[serde(default)]
limit: Option<u64>,
#[serde(default)]
reverse: bool,
#[serde(default, rename = "singleItem")]
single_item: bool,
#[serde(default, rename = "conflictsOnly")]
conflicts_only: bool,
#[serde(default)]
tombstones: bool,
}
#[derive(Serialize)]
struct ReadBatchResponse {
#[serde(rename = "partitionKey")]
partition_key: String,
prefix: Option<String>,
start: Option<String>,
end: Option<String>,
limit: Option<u64>,
reverse: bool,
#[serde(rename = "singleItem")]
single_item: bool,
#[serde(rename = "conflictsOnly")]
conflicts_only: bool,
tombstones: bool,
items: Vec<ReadBatchResponseItem>,
more: bool,
#[serde(rename = "nextStart")]
next_start: Option<String>,
}
#[derive(Serialize)]
struct ReadBatchResponseItem {
sk: String,
ct: String,
v: Vec<Option<String>>,
}
impl ReadBatchResponseItem {
fn from(i: K2VItem) -> Self {
let ct = i.causal_context().serialize();
let v = i
.values()
.iter()
.map(|v| match v {
DvvsValue::Value(x) => Some(base64::encode(x)),
DvvsValue::Deleted => None,
})
.collect::<Vec<_>>();
Self {
sk: i.sort_key,
ct,
v,
}
}
}
#[derive(Deserialize)]
struct DeleteBatchQuery {
#[serde(rename = "partitionKey")]
partition_key: String,
#[serde(default)]
prefix: Option<String>,
#[serde(default)]
start: Option<String>,
#[serde(default)]
end: Option<String>,
#[serde(default, rename = "singleItem")]
single_item: bool,
}
#[derive(Serialize)]
struct DeleteBatchResponse {
#[serde(rename = "partitionKey")]
partition_key: String,
prefix: Option<String>,
start: Option<String>,
end: Option<String>,
#[serde(rename = "singleItem")]
single_item: bool,
#[serde(rename = "deletedItems")]
deleted_items: usize,
}
