-
Notifications
You must be signed in to change notification settings - Fork 303
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
3 changed files
with
169 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| // Copyright 2023 Greptime Team | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| use axum::http::{header, HeaderValue}; | ||
| use axum::response::{IntoResponse, Response}; | ||
| use common_error::status_code::StatusCode; | ||
| use common_query::Output; | ||
| use mime_guess::mime; | ||
| use schemars::JsonSchema; | ||
| use serde::{Deserialize, Serialize}; | ||
| use serde_json::{json, Map}; | ||
|
|
||
| use super::process_with_limit; | ||
| use crate::http::error_result::ErrorResponse; | ||
| use crate::http::header::{GREPTIME_DB_HEADER_EXECUTION_TIME, GREPTIME_DB_HEADER_FORMAT}; | ||
| use crate::http::{handler, GreptimeQueryOutput, HttpResponse, ResponseFormat}; | ||
|
|
||
| /// The json format here is different from the default json output of greptime_result. | ||
| /// `JsonResponse` is intended to make it easier for user to consume data. | ||
| #[derive(Serialize, Deserialize, Debug, JsonSchema)] | ||
| pub struct JsonResponse { | ||
| output: Vec<GreptimeQueryOutput>, | ||
| execution_time_ms: u64, | ||
| } | ||
|
|
||
| impl JsonResponse { | ||
| pub async fn from_output(outputs: Vec<crate::error::Result<Output>>) -> HttpResponse { | ||
| match handler::from_output(outputs).await { | ||
| Err(err) => HttpResponse::Error(err), | ||
| Ok((output, _)) => { | ||
| if output.len() > 1 { | ||
| HttpResponse::Error(ErrorResponse::from_error_message( | ||
| StatusCode::InvalidArguments, | ||
| "cannot output multi-statements result in json format".to_string(), | ||
| )) | ||
| } else { | ||
| HttpResponse::Json(JsonResponse { | ||
| output, | ||
| execution_time_ms: 0, | ||
| }) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub fn output(&self) -> &[GreptimeQueryOutput] { | ||
| &self.output | ||
| } | ||
|
|
||
| pub fn with_execution_time(mut self, execution_time: u64) -> Self { | ||
| self.execution_time_ms = execution_time; | ||
| self | ||
| } | ||
|
|
||
| pub fn execution_time_ms(&self) -> u64 { | ||
| self.execution_time_ms | ||
| } | ||
|
|
||
| pub fn with_limit(mut self, limit: usize) -> Self { | ||
| self.output = process_with_limit(self.output, limit); | ||
| self | ||
| } | ||
| } | ||
|
|
||
| impl IntoResponse for JsonResponse { | ||
| fn into_response(mut self) -> Response { | ||
| debug_assert!( | ||
| self.output.len() <= 1, | ||
| "self.output has extra elements: {}", | ||
| self.output.len() | ||
| ); | ||
|
|
||
| let execution_time = self.execution_time_ms; | ||
| let payload = match self.output.pop() { | ||
| None => String::default(), | ||
| Some(GreptimeQueryOutput::AffectedRows(n)) => json!({ | ||
| "data": [ | ||
| { | ||
| "affectedrows": n | ||
| }, | ||
| ], | ||
| "execution_time_ms": execution_time, | ||
| }) | ||
| .to_string(), | ||
|
|
||
| Some(GreptimeQueryOutput::Records(records)) => { | ||
| let mut data = Vec::new(); | ||
| let schema = records.schema(); | ||
|
|
||
| for row in records.rows.iter() { | ||
| let mut row_map = Map::new(); | ||
| for (i, col) in schema.column_schemas.iter().enumerate() { | ||
| row_map.insert(col.name.clone(), row[i].clone()); | ||
| } | ||
| data.push(row_map); | ||
| } | ||
|
|
||
| json!({ | ||
| "data": data, | ||
| "execution_time_ms": execution_time, | ||
| }) | ||
| .to_string() | ||
| } | ||
| }; | ||
|
|
||
| let mut resp = ( | ||
| [( | ||
| header::CONTENT_TYPE, | ||
| HeaderValue::from_static(mime::APPLICATION_JSON.as_ref()), | ||
| )], | ||
| payload, | ||
| ) | ||
| .into_response(); | ||
| resp.headers_mut().insert( | ||
| &GREPTIME_DB_HEADER_FORMAT, | ||
| HeaderValue::from_static(ResponseFormat::Json.as_str()), | ||
| ); | ||
| resp.headers_mut().insert( | ||
| &GREPTIME_DB_HEADER_EXECUTION_TIME, | ||
| HeaderValue::from(execution_time), | ||
| ); | ||
| resp | ||
| } | ||
| } |