graphannis-webservice 4.1.2

This is a web service to the new backend implementation of the ANNIS linguistic search and visualization system.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136

use std::time::Duration;

use super::check_corpora_authorized_read;
use crate::{DbPool, errors::ServiceError, extractors::ClaimsFromAuth, settings::Settings};
use actix_web::{
    HttpResponse,
    web::{self, Bytes},
};
use futures::stream::iter;
use graphannis::{
    CorpusStorage,
    corpusstorage::{FrequencyDefEntry, QueryLanguage, ResultOrder, SearchQuery},
};
use serde::Deserialize;

#[derive(Deserialize, Serialize, Debug)]
pub struct CountQuery {
    query: String,
    #[serde(default)]
    query_language: QueryLanguage,
    corpora: Vec<String>,
}

pub async fn count(
    params: web::Json<CountQuery>,
    cs: web::Data<CorpusStorage>,
    db_pool: web::Data<DbPool>,
    settings: web::Data<Settings>,
    claims: ClaimsFromAuth,
) -> Result<HttpResponse, ServiceError> {
    let corpora =
        check_corpora_authorized_read(params.corpora.clone(), claims.0, &settings, &db_pool)
            .await?;
    let query = SearchQuery {
        corpus_names: &corpora,
        query: &params.query,
        query_language: params.query_language,
        timeout: settings.database.query_timeout.map(Duration::from_secs),
    };

    let count = cs.count_extra(query)?;
    Ok(HttpResponse::Ok().json(count))
}

#[derive(Deserialize)]
pub struct ParseQuery {
    query: String,
    #[serde(default)]
    query_language: QueryLanguage,
}

pub async fn node_descriptions(
    params: web::Query<ParseQuery>,
    cs: web::Data<CorpusStorage>,
) -> Result<HttpResponse, ServiceError> {
    let desc = cs.node_descriptions(&params.query, params.query_language)?;
    Ok(HttpResponse::Ok().json(desc))
}

#[derive(Deserialize)]
pub struct FindQuery {
    query: String,
    #[serde(default)]
    query_language: QueryLanguage,
    corpora: Vec<String>,
    #[serde(default)]
    limit: Option<usize>,
    #[serde(default)]
    offset: usize,
    #[serde(default)]
    order: ResultOrder,
}

pub async fn find(
    params: web::Json<FindQuery>,
    cs: web::Data<CorpusStorage>,
    db_pool: web::Data<DbPool>,
    settings: web::Data<Settings>,
    claims: ClaimsFromAuth,
) -> Result<HttpResponse, ServiceError> {
    let corpora =
        check_corpora_authorized_read(params.corpora.clone(), claims.0, &settings, &db_pool)
            .await?;
    let query = SearchQuery {
        corpus_names: &corpora,
        query: &params.query,
        query_language: params.query_language,
        timeout: settings.database.query_timeout.map(Duration::from_secs),
    };
    let matches = cs.find(query, params.offset, params.limit, params.order)?;

    let body = iter(
        matches
            .into_iter()
            .map(|mut line| -> Result<_, ServiceError> {
                line.push('\n');
                Ok(Bytes::from(line))
            }),
    );
    Ok(HttpResponse::Ok()
        .content_type("text/plain")
        .streaming(body))
}

#[derive(Deserialize)]
pub struct FrequencyQuery {
    query: String,
    #[serde(default)]
    query_language: QueryLanguage,
    corpora: Vec<String>,
    definition: Vec<FrequencyDefEntry>,
}

pub async fn frequency(
    params: web::Json<FrequencyQuery>,
    cs: web::Data<CorpusStorage>,
    db_pool: web::Data<DbPool>,
    settings: web::Data<Settings>,
    claims: ClaimsFromAuth,
) -> Result<HttpResponse, ServiceError> {
    let corpora =
        check_corpora_authorized_read(params.corpora.clone(), claims.0, &settings, &db_pool)
            .await?;
    let query = SearchQuery {
        corpus_names: &corpora,
        query: &params.query,
        query_language: params.query_language,
        timeout: settings.database.query_timeout.map(Duration::from_secs),
    };
    let result = cs.frequency(query, params.definition.clone())?;

    Ok(HttpResponse::Ok().json(result))
}

#[cfg(test)]
mod tests;