-
Notifications
You must be signed in to change notification settings - Fork 31
/
Size.java
187 lines (153 loc) · 6.06 KB
/
Size.java
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
/*
* Copyright 2010-2013 Coda Hale and Yammer, Inc., 2014-2016 Dropwizard Team
*
* 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.
*/
package cd.go.contrib.elasticagent.utils;
import io.fabric8.kubernetes.api.model.Quantity;
import java.text.DecimalFormat;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static cd.go.contrib.elasticagent.utils.Util.isBlank;
import static java.util.Objects.requireNonNull;
public class Size implements Comparable<Size> {
private static final Pattern SIZE_PATTERN = Pattern.compile("(\\d+)\\s*(\\S*)");
private static final Map<String, SizeUnit> SUFFIXES;
static {
Map<String, SizeUnit> tmpSuffixes = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
tmpSuffixes.put("B", SizeUnit.BYTES);
tmpSuffixes.put("byte", SizeUnit.BYTES);
tmpSuffixes.put("bytes", SizeUnit.BYTES);
tmpSuffixes.put("K", SizeUnit.KILOBYTES);
tmpSuffixes.put("KB", SizeUnit.KILOBYTES);
tmpSuffixes.put("Ki", SizeUnit.KILOBYTES);
tmpSuffixes.put("KiB", SizeUnit.KILOBYTES);
tmpSuffixes.put("kilobyte", SizeUnit.KILOBYTES);
tmpSuffixes.put("kilobytes", SizeUnit.KILOBYTES);
tmpSuffixes.put("M", SizeUnit.MEGABYTES);
tmpSuffixes.put("Mi", SizeUnit.MEGABYTES);
tmpSuffixes.put("MB", SizeUnit.MEGABYTES);
tmpSuffixes.put("MiB", SizeUnit.MEGABYTES);
tmpSuffixes.put("megabyte", SizeUnit.MEGABYTES);
tmpSuffixes.put("megabytes", SizeUnit.MEGABYTES);
tmpSuffixes.put("G", SizeUnit.GIGABYTES);
tmpSuffixes.put("Gi", SizeUnit.GIGABYTES);
tmpSuffixes.put("GB", SizeUnit.GIGABYTES);
tmpSuffixes.put("GiB", SizeUnit.GIGABYTES);
tmpSuffixes.put("gigabyte", SizeUnit.GIGABYTES);
tmpSuffixes.put("gigabytes", SizeUnit.GIGABYTES);
tmpSuffixes.put("T", SizeUnit.TERABYTES);
tmpSuffixes.put("TB", SizeUnit.TERABYTES);
tmpSuffixes.put("Ti", SizeUnit.TERABYTES);
tmpSuffixes.put("TiB", SizeUnit.TERABYTES);
tmpSuffixes.put("terabyte", SizeUnit.TERABYTES);
tmpSuffixes.put("terabytes", SizeUnit.TERABYTES);
SUFFIXES = Collections.unmodifiableMap(tmpSuffixes);
}
private final double count;
private final SizeUnit unit;
private Size(double count, SizeUnit unit) {
this.count = count;
this.unit = requireNonNull(unit);
}
public static Size bytes(double count) {
return new Size(count, SizeUnit.BYTES);
}
public static Size kilobytes(double count) {
return new Size(count, SizeUnit.KILOBYTES);
}
public static Size megabytes(double count) {
return new Size(count, SizeUnit.MEGABYTES);
}
public static Size gigabytes(double count) {
return new Size(count, SizeUnit.GIGABYTES);
}
public static Size terabytes(double count) {
return new Size(count, SizeUnit.TERABYTES);
}
public static Size parse(String size) {
if (isBlank(size)) {
throw new IllegalArgumentException();
}
final Matcher matcher = SIZE_PATTERN.matcher(size);
if (!matcher.matches()) {
throw new IllegalArgumentException("Invalid size: " + size);
}
final double count = Double.parseDouble(matcher.group(1));
String suffix = matcher.group(2);
if (!suffix.isBlank() && !SUFFIXES.containsKey(suffix)) {
throw new IllegalArgumentException("Invalid size: " + size + ". Wrong size unit");
}
final SizeUnit unit = SUFFIXES.getOrDefault(suffix, SizeUnit.BYTES);
return new Size(count, unit);
}
public static Size fromQuantity(Quantity quantity) {
return bytes(Quantity.getAmountInBytes(quantity).doubleValue());
}
public double getQuantity() {
return count;
}
public SizeUnit getUnit() {
return unit;
}
public double toBytes() {
return SizeUnit.BYTES.convert(count, unit);
}
public double toKilobytes() {
return SizeUnit.KILOBYTES.convert(count, unit);
}
public double toMegabytes() {
return SizeUnit.MEGABYTES.convert(count, unit);
}
public double toGigabytes() {
return SizeUnit.GIGABYTES.convert(count, unit);
}
public double toTerabytes() {
return SizeUnit.TERABYTES.convert(count, unit);
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null || getClass() != obj.getClass()) return false;
Size size = (Size) obj;
return Double.compare(size.count, count) == 0 &&
unit == size.unit;
}
@Override
public int hashCode() {
return Objects.hash(count, unit);
}
@Override
public String toString() {
String units = unit.toString().toLowerCase(Locale.ENGLISH);
if (count == 1) {
units = units.substring(0, units.length() - 1);
}
return Double.toString(count) + ' ' + units;
}
@Override
public int compareTo(Size other) {
if (unit == other.unit) {
return Double.compare(count, other.count);
}
return Double.compare(toBytes(), other.toBytes());
}
public String readableSize() {
double size = this.unit.toBytes(this.count);
if (size <= 0) return "0";
final String[] units = new String[]{"B", "KB", "MB", "GB", "TB", "PB", "EB"};
int digitGroups = (int) (Math.log10(size) / Math.log10(1024));
return new DecimalFormat("#,##0.##").format(size / Math.pow(1024, digitGroups)) + " " + units[digitGroups];
}
}