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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164

use std::collections::HashMap;
use std::default::Default;

use serde::{Deserialize, Serialize};
use summa_proto::proto;
use summa_proto::proto::IndexEngineConfig;

use crate::errors::{BuilderError, SummaResult, ValidationError};

fn return_1() -> usize {
    1
}
fn return_100() -> usize {
    100
}

#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(rename_all = "snake_case")]
pub enum WriterThreads {
    SameThread,
    N(u64),
}

impl WriterThreads {
    pub fn threads(&self) -> u64 {
        match self {
            WriterThreads::SameThread => 0,
            WriterThreads::N(n) => *n,
        }
    }
}

#[derive(Builder, Clone, Debug, Serialize, Deserialize)]
#[builder(default, build_fn(error = "BuilderError"))]
pub struct CollectorCacheConfig {
    #[builder(default = "Some(120000)")]
    pub ttl_interval_ms: Option<u64>,
    #[builder(default = "128")]
    pub size: usize,
}

impl Default for CollectorCacheConfig {
    fn default() -> Self {
        CollectorCacheConfig {
            ttl_interval_ms: Some(120000),
            size: 128,
        }
    }
}

#[derive(Builder, Clone, Debug, Serialize, Deserialize)]
#[builder(default, build_fn(error = "BuilderError"))]
pub struct Config {
    #[serde(default = "HashMap::new")]
    pub aliases: HashMap<String, String>,
    #[builder(default = "None")]
    pub autocommit_interval_ms: Option<u64>,
    #[builder(default = "CollectorCacheConfig::default()")]
    #[serde(default = "CollectorCacheConfig::default")]
    pub collector_cache: CollectorCacheConfig,
    #[builder(default = "1")]
    #[serde(default = "return_1")]
    pub doc_store_compress_threads: usize,
    #[builder(default = "100")]
    #[serde(default = "return_100")]
    pub doc_store_cache_num_blocks: usize,
    #[serde(default = "HashMap::new")]
    pub indices: HashMap<String, IndexEngineConfig>,
    #[builder(default = "1024 * 1024 * 1024")]
    pub writer_heap_size_bytes: u64,
    #[builder(default = "Some(WriterThreads::N(1))")]
    pub writer_threads: Option<WriterThreads>,
}

impl Default for Config {
    fn default() -> Self {
        Config {
            aliases: HashMap::new(),
            autocommit_interval_ms: None,
            collector_cache: CollectorCacheConfig::default(),
            doc_store_compress_threads: 1,
            indices: HashMap::new(),
            writer_heap_size_bytes: 1024 * 1024 * 1024,
            writer_threads: Some(WriterThreads::N(1)),
            doc_store_cache_num_blocks: 100,
        }
    }
}

impl Config {
    /// Copy aliases for the index
    pub fn get_index_aliases_for_index(&self, index_name: &str) -> Vec<String> {
        self.aliases
            .iter()
            .filter(|(_, v)| *v == index_name)
            .map(|(k, _)| k.clone())
            .collect::<Vec<String>>()
    }

    /// Find index by alias
    pub fn resolve_index_alias(&self, alias: &str) -> Option<String> {
        self.aliases.get(alias).cloned()
    }

    /// Set new alias for index
    pub fn set_index_alias(&mut self, alias: &str, index_name: &str) -> SummaResult<Option<String>> {
        if alias.is_empty() {
            return Err(ValidationError::EmptyArgument("alias".to_owned()).into());
        }
        if index_name.is_empty() {
            return Err(ValidationError::EmptyArgument("index_name".to_owned()).into());
        }
        if !self.indices.contains_key(index_name) {
            return Err(ValidationError::MissingIndex(index_name.to_owned()).into());
        }
        Ok(self.aliases.insert(alias.to_owned(), index_name.to_owned()))
    }

    /// Delete all aliases listed in `index_aliases`
    pub fn delete_index_aliases(&mut self, index_aliases: &Vec<String>) {
        for alias in index_aliases {
            self.aliases.remove(alias);
        }
    }
}

#[derive(Debug, Clone)]
pub struct QueryParserConfig(pub proto::QueryParserConfig);
impl QueryParserConfig {
    pub fn from_default_fields(default_fields: Vec<String>) -> Self {
        QueryParserConfig(proto::QueryParserConfig {
            default_fields,
            ..Default::default()
        })
    }
    pub fn term_limit(&self) -> usize {
        if self.0.term_limit > 0 {
            self.0.term_limit as usize
        } else {
            16
        }
    }
    pub fn merge(&mut self, other: Self) {
        if !other.0.default_fields.is_empty() {
            self.0.default_fields = other.0.default_fields;
        }
        self.0.field_aliases.extend(other.0.field_aliases);
        self.0.term_field_mapper_configs.extend(other.0.term_field_mapper_configs);
        self.0.field_boosts.extend(other.0.field_boosts);
        self.0.morphology_configs.extend(other.0.morphology_configs);
        if other.0.term_limit > 0 {
            self.0.term_limit = other.0.term_limit;
        }
        if let Some(exact_matches_promoter) = other.0.exact_matches_promoter {
            self.0.exact_matches_promoter = Some(exact_matches_promoter)
        }
        if let Some(default_mode) = other.0.default_mode {
            self.0.default_mode = Some(default_mode)
        }
        if let Some(query_language) = other.0.query_language {
            self.0.query_language = Some(query_language)
        }
    }
}