fluss-rs 0.1.0

The official rust client of Apache Fluss (Incubating)
Documentation 
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

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 crate::cluster::{BucketLocation, Cluster, ServerNode, ServerType};
use crate::metadata::{
    DataField, DataTypes, PhysicalTablePath, Schema, TableBucket, TableDescriptor, TableInfo,
    TablePath,
};
use std::collections::HashMap;
use std::sync::Arc;

pub(crate) fn build_table_info(table_path: TablePath, table_id: i64, buckets: i32) -> TableInfo {
    let row_type = DataTypes::row(vec![DataField::new("id", DataTypes::int(), None)]);
    let schema_builder = Schema::builder().with_row_type(&row_type);
    let schema = schema_builder.build().expect("schema build");
    let table_descriptor = TableDescriptor::builder()
        .schema(schema)
        .distributed_by(Some(buckets), vec![])
        .build()
        .expect("descriptor build");
    TableInfo::of(table_path, table_id, 1, table_descriptor, 0, 0)
}

pub(crate) fn build_cluster(table_path: &TablePath, table_id: i64, buckets: i32) -> Cluster {
    let server = ServerNode::new(1, "127.0.0.1".to_string(), 9092, ServerType::TabletServer);

    let mut servers = HashMap::new();
    servers.insert(server.id(), server.clone());

    let mut locations_by_path = HashMap::new();
    let mut locations_by_bucket = HashMap::new();
    let mut bucket_locations = Vec::new();

    for bucket_id in 0..buckets {
        let table_bucket = TableBucket::new(table_id, bucket_id);
        let bucket_location = BucketLocation::new(
            table_bucket.clone(),
            Some(server.clone()),
            Arc::new(PhysicalTablePath::of(Arc::new(table_path.clone()))),
        );
        bucket_locations.push(bucket_location.clone());
        locations_by_bucket.insert(table_bucket, bucket_location);
    }
    locations_by_path.insert(
        Arc::new(PhysicalTablePath::of(Arc::new(table_path.clone()))),
        bucket_locations,
    );

    let mut table_id_by_path = HashMap::new();
    table_id_by_path.insert(table_path.clone(), table_id);

    let mut table_info_by_path = HashMap::new();
    table_info_by_path.insert(
        table_path.clone(),
        build_table_info(table_path.clone(), table_id, buckets),
    );

    Cluster::new(
        None,
        servers,
        locations_by_path,
        locations_by_bucket,
        table_id_by_path,
        table_info_by_path,
        HashMap::new(),
    )
}

pub(crate) fn build_cluster_arc(
    table_path: &TablePath,
    table_id: i64,
    buckets: i32,
) -> Arc<Cluster> {
    Arc::new(build_cluster(table_path, table_id, buckets))
}