jig.php
2.33 KB
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
<?php
/*
Copyright (c) 2009-2014 F3::Factory/Bong Cosca, All rights reserved.
This file is part of the Fat-Free Framework (http://fatfree.sf.net).
THE SOFTWARE AND DOCUMENTATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
PURPOSE.
Please see the license.txt file for more information.
*/
namespace DB;
//! Flat-file DB wrapper
class Jig {
//@{ Storage formats
const
FORMAT_JSON=0,
FORMAT_Serialized=1;
//@}
protected
//! UUID
$uuid,
//! Storage location
$dir,
//! Current storage format
$format,
//! Jig log
$log;
/**
* Read data from file
* @return array
* @param $file string
**/
function read($file) {
$fw=\Base::instance();
if (!is_file($dst=$this->dir.$file))
return array();
$raw=$fw->read($dst);
switch ($this->format) {
case self::FORMAT_JSON:
$data=json_decode($raw,TRUE);
break;
case self::FORMAT_Serialized:
$data=$fw->unserialize($raw);
break;
}
return $data;
}
/**
* Write data to file
* @return int
* @param $file string
* @param $data array
**/
function write($file,array $data=NULL) {
$fw=\Base::instance();
switch ($this->format) {
case self::FORMAT_JSON:
$out=json_encode($data,@constant('JSON_PRETTY_PRINT'));
break;
case self::FORMAT_Serialized:
$out=$fw->serialize($data);
break;
}
return $fw->write($this->dir.$file,$out);
}
/**
* Return directory
* @return string
**/
function dir() {
return $this->dir;
}
/**
* Return UUID
* @return string
**/
function uuid() {
return $this->uuid;
}
/**
* Return SQL profiler results
* @return string
**/
function log() {
return $this->log;
}
/**
* Jot down log entry
* @return NULL
* @param $frame string
**/
function jot($frame) {
if ($frame)
$this->log.=date('r').' '.$frame.PHP_EOL;
}
/**
* Clean storage
* @return NULL
**/
function drop() {
if ($glob=@glob($this->dir.'/*',GLOB_NOSORT))
foreach ($glob as $file)
@unlink($file);
}
/**
* Instantiate class
* @param $dir string
* @param $format int
**/
function __construct($dir,$format=self::FORMAT_JSON) {
if (!is_dir($dir))
mkdir($dir,\Base::MODE,TRUE);
$this->uuid=\Base::instance()->hash($this->dir=$dir);
$this->format=$format;
}
}