tpctools 0.1.2

Utilities for generating TPC-H and TPC-DS data sets
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
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

// 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 std::fs;
use std::io::Result;
use std::path::Path;
use std::process::Command;
use std::thread;
use std::time::Instant;

use arrow::datatypes::Schema;
use async_trait::async_trait;

use crate::Tpc;

pub struct TpcDs {}

impl TpcDs {
    pub fn new() -> Self {
        Self {}
    }
}

#[async_trait]
impl Tpc for TpcDs {
    fn generate(
        &self,
        scale: usize,
        partitions: usize,
        generator_path: &str,
        output_path: &str,
    ) -> Result<()> {
        let mut handles = vec![];

        let start = Instant::now();

        for i in 1..=partitions {
            let generator_path = generator_path.to_owned();
            let output_path = output_path.to_owned();
            let scale = scale;
            let partitions = partitions;
            handles.push(thread::spawn(move || {
                let output = Command::new("./dsdgen")
                    .current_dir(generator_path)
                    .arg("-FORCE")
                    .arg("-DIR")
                    .arg(output_path)
                    .arg("-SCALE")
                    .arg(format!("{}", scale))
                    .arg("-CHILD")
                    .arg(format!("{}", i))
                    .arg("-PARALLEL")
                    .arg(format!("{}", partitions))
                    .output()
                    .expect("failed to generate data");

                println!("{:?}", output);
            }));
        }

        // wait for all threads to finish
        for h in handles {
            h.join().unwrap();
        }

        let duration = start.elapsed();

        println!(
            "Generated TPC-DS data at scale factor {} with {} partitions in: {:?}",
            scale, partitions, duration
        );

        let tables = self.get_table_names();

        for table in &tables {
            let output_dir = format!("{}/{}", output_path, table);
            if !Path::new(&output_dir).exists() {
                println!("Creating directory {}", output_dir);
                fs::create_dir(&output_dir)?;
            }
            for i in 1..=partitions {
                let filename = format!("{}/{}_{}_{}.dat", output_path, table, i, partitions);
                let filename2 = format!("{}/part-{}.dat", output_dir, i);
                if Path::new(&filename).exists() {
                    println!("mv {} {}", filename, filename2);
                    fs::rename(filename, filename2)?;
                }
            }
        }

        Ok(())
    }

    fn get_table_names(&self) -> Vec<&str> {
        vec![
            "call_center",
            "catalog_page",
            "catalog_sales",
            "catalog_returns",
            "customer",
            "customer_address",
            "customer_demographics",
            "date_dim",
            "income_band",
            "household_demographics",
            "inventory",
            "store",
            "ship_mode",
            "reason",
            "promotion",
            "item",
            "store_sales",
            "store_returns",
            "web_page",
            "warehouse",
            "time_dim",
            "web_site",
            "web_sales",
            "web_returns",
        ]
    }

    fn get_schema(&self, _table: &str) -> Schema {
        todo!()
    }

    async fn convert_to_parquet(
        &self,
        _input_path: &str,
        _output_path: &str,
    ) -> datafusion::error::Result<()> {
        todo!()
    }
}