qma/
visualize.rs

1
2
3use std::cmp;
4pub use crate::aggregate::{ Table, TableRow, TableDef, Index, Field };
5pub use crate::log_record::{ LogValueType, LogValue, LogRecord, Accessor };
6
7
8pub enum VisualizeType {
9    Csv,
10    Markdown
11}
12
13pub fn display_as_csv(table: &mut Table) {
14    // # Display aggregated result as csv format.
15    let def = table.definition.clone();
16    let mut header = String::from("");
17    for  (i, &f) in def.field_accessor().iter().enumerate() {
18        header += &f.name;
19        if i != def.field_num() {
20            header += ",";
21        }
22    }
23    println!("{}", &header);
24
25    for (key, row) in table.sorted_rows() {
26        let mut row_str = String::from(key);
27        row_str += ",";
28
29        for (i, v) in row.get_row(&def.fields).iter().enumerate() {
30
31            let s  = v.as_string();
32            row_str += &s;
33            if i != def.field_num() {
34                row_str += ",";
35            }
36
37        }
38        println!("{}", &row_str);
39    }
40}
41
42
43pub fn display_as_markdown(table :&mut Table) {
44    // # Display aggregated result as csv format.
45    // count max chars of each fields;
46    let def = table.definition.clone();
47    let mut col_width = vec![10; 1+def.fields.len()];
48    col_width[0] = cmp::max(col_width[0], def.index.name().chars().count());
49    for (i, &f) in def.field_accessor().iter().enumerate() {
50        col_width[i+1] = cmp::max(col_width[i+1], f.name.chars().count());
51    }
52    
53    // print header;
54    let mut header = String::from("|");
55    header += &format_string(def.index.name(), col_width[0]);
56    header += "|";
57    for (i, &f) in def.field_accessor().iter().enumerate() {
58        let width = col_width[i+1];
59        header += &format_string(&f.name, width);
60        header += "|"
61    }
62    println!("{}", &header);
63
64    // print separator
65    let mut separator = String::new();
66    for w in col_width.iter() {
67        separator += &format!("|:{}", "-".repeat(*w-1));
68    }
69    separator += "|";
70    println!("{}", separator);
71
72    // print table
73    for (key, row) in table.sorted_rows() {
74        let width = col_width[0];
75        let mut row_str = String::from("|");
76        row_str += &format_string(key, width);
77        row_str += "|";
78
79        for (i, v) in row.get_row(&def.fields).iter().enumerate() {
80            let width = col_width[i+1];
81            row_str += &format_log_value(v, width);
82            if i != def.field_num() {
83                row_str += "|";
84            }
85
86        }
87        println!("{}", &row_str);
88    }
89}
90
91
92fn format_log_value(v: &LogValue, width: usize) -> String{
93    let s  = v.as_string();
94    format!("{:>width$}", &s, width = width)
95}
96
97fn format_string(s: &str, width: usize) -> String{
98    format!("{:width$}", s, width = width)
99}
qma/visualize.rs

qma/
visualize.rs
