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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214 |
1
1
1
1245
1245
1245
1219
1245
774
471
12
459
458
459
32
67
67
67
427
401
26
52
587
587
386
201
603
587
587
587
587
587
587
583
587
587
587
4
583
583
583
734
151
583
387
196
583
| 'use strict';
;require.register("mixins/unit_convert/base_unit_convert_mixin", function (exports, require, module) {
/**
* 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.
*/
var App = require('app');
App.BaseUnitConvertMixin = Em.Mixin.create({
/**
* Which type of units should be used e.g. size, time.
* Conversion dimensions will be used according this type.
* For more info regarding dimension table @see convertMapTable property.
*
* This property can be used in mixed object to specify which dimension table map will
* be used for conversion. If type is not specified we try to find correct table by input unit type.
*
* Note: You should specify dimension for `percentage` conversion with specified property unit type.
*
* @property currentDimensionType
* @type {String}
*/
currentDimensionType: null,
units: ['b', 'kb', 'mb', 'gb', 'tb', 'pb'],
/**
* Labels related to units. Specify desired display names here that not much actual unit name.
*/
unitLabelMap: {
percent: '%',
int: '',
float: ''
},
convertMapTable: Em.Object.create({
size: {
b: 1024,
kb: 1024,
mb: 1024,
gb: 1024,
tb: 1024,
pb: 1024
},
time: {
milliseconds: 1,
seconds: 1000,
minutes: 60,
hours: 60,
days: 24
},
/**
* Percent dimension type should be specified directly through `currentDimensionType` property.
* For example:
* 'percent.percent_int' if widget `unit-name` is "percent" and config property `type` is "int"
* 'percent.percent_float' if widget `unit-name` is "percent" and config property `type` is "float"
*/
percent: {
percent_int: {
int: 1,
percent: 1
},
percent_float: {
float: 1,
percent: 0.01
}
}
}),
/**
* Convert value between different unit types. Conversion works for following directions:
* single unit -> single unit e.g. from "s" -> "s".
* single unit -> multi unit e.g. from "ms" -> "days,hours"
* multi unit -> single unit e.g. from "days,hours" -> "ms"
* For single -> single unit conversion returned value will be as is or an array of objects if
* isObjectOutput flag passed.
* If any passed unit is multi dimensions like "days,hours" array of objects will return always.
* For example:
* <code>
* convertValue(1024, 'kb', 'kb') // returns 1024
* convertValue(1024, 'kb', 'kb', true) // returns [{ type: 'kb', value: 1024 }]
* convertValue(60000, 'ms', 'hours,minutes') // returns [{type: 'hours', value: 0 }, {type: 'minutes', value: 1}]
* </code>
* For more examples see unit tests.
*
* @method convertValue
* @param {String|Number|Object[]} value - value to convert
* @param {String|String[]} fromUnit - specified value unit type(s) e.g. "mb"
* Form multi dimensional format pass units separated with "," or list of unit types
* e.g. "gb,mb", ['gb', 'mb']
* @param {Boolean} [isObjectOutput=false] - 'returned' value should be object this option useful for widgets where its
* value should be an Object
* @param {String|String[]} toUnit - desired unit(s) to convert specified value. Same format as for `fromUnit`
* @returns {Number|Object[]} returns single value or array of objects according to multi unit format
*/
convertValue: function convertValue(value, fromUnit, toUnit, isObjectOutput) {
var self = this;
var valueIsArray = Em.isArray(value);
if (!valueIsArray) {
value = +value;
}
// if desired unit not passed or fromUnit and toUnit are the same
// just return the value
if ((fromUnit == toUnit || !toUnit) && !isObjectOutput) {
return value;
}
if (isNaN(value) && !valueIsArray) {
return null;
}
// convert passed toUnit string to array of units by ','
// for example "mb,kb" to ['mb','kb']
if (!Em.isArray(toUnit)) {
toUnit = toUnit.split(',');
}
// process multi unit format
if (toUnit.length > 1 || isObjectOutput) {
// returned array has following structure
// .value - value according to unit
// .type - unit name
return toUnit.map(function (unit) {
var convertedValue = Math.floor(self._convertToSingleValue(value, fromUnit, unit));
value -= self._convertToSingleValue(convertedValue, unit, fromUnit);
return {
value: convertedValue,
type: unit
};
});
}
// for single unit format just return single value
else {
if (!valueIsArray) {
return this._convertToSingleValue(value, fromUnit, toUnit[0]);
} else {
return value.map(function (item) {
return self._convertToSingleValue(item.value, item.type, toUnit[0]);
}).reduce(Em.sum, 0);
}
}
},
/**
* Get dimension table map. `currentDimensionType` will be used if specified or
* detected by property unit type.
*
* @method _converterGetUnitTable
* @private
* @param {String|String[]} unit - unit type
* @return {Object}
*/
_converterGetUnitTable: function _converterGetUnitTable(unit) {
var unitType;
if (this.get('currentDimensionType')) {
unitType = this.get('currentDimensionType');
} else {
unitType = Em.keys(this.get('convertMapTable')).filter(function (item) {
return Em.keys(this.get('convertMapTable.' + item)).contains(Em.isArray(unit) ? unit[0].toLowerCase() : unit.toLowerCase());
}, this)[0];
}
return this.get('convertMapTable.' + unitType);
},
/**
* @method _convertToSingleValue
* @private
* @param {Number} value - value to convert
* @param {String} fromUnit - unit type for current value
* @param {String} toUnit - desired unit type
* @return {Number}
*/
_convertToSingleValue: function _convertToSingleValue(value, fromUnit, toUnit) {
var convertTable = this._converterGetUnitTable(fromUnit);
var units = Em.keys(convertTable);
var fromUnitIndex = units.indexOf(fromUnit.toLowerCase());
var toUnitIndex = units.indexOf(toUnit.toLowerCase());
var isInt = function isInt(val) {
return parseInt(val) === val;
};
Em.assert("Invalid value unit type " + fromUnit, fromUnitIndex > -1);
Em.assert("Invalid desired unit type " + toUnit, toUnitIndex > -1);
if (fromUnitIndex == toUnitIndex) {
return value;
}
var range = [fromUnitIndex + 1, toUnitIndex + 1];
var processedUnits = Array.prototype.slice.apply(units, range[0] < range[1] ? range : range.slice().reverse());
var factor = processedUnits.map(function (unit) {
return Em.get(convertTable, unit);
}, this).reduce(function (p, c) {
return p * c;
});
if (range[0] < range[1]) {
value /= factor;
} else {
value *= factor;
}
return isInt(value) ? value : parseFloat(value.toFixed(3));
}
});
}); |