-
-
Notifications
You must be signed in to change notification settings - Fork 722
/
MiscUtil.java
210 lines (197 loc) · 6.72 KB
/
MiscUtil.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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
/*
* Copyright 2015-2017 Austin Keener & Michael Ritter & Florian Spieß
*
* 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 net.dv8tion.jda.core.utils;
import gnu.trove.TCollections;
import gnu.trove.map.TLongObjectMap;
import gnu.trove.map.hash.TLongObjectHashMap;
import net.dv8tion.jda.core.entities.ISnowflake;
import okhttp3.MediaType;
import okhttp3.RequestBody;
import okio.BufferedSink;
import okio.Okio;
import okio.Source;
import org.apache.commons.lang3.StringUtils;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Formatter;
import java.util.TimeZone;
public class MiscUtil
{
public static final long DISCORD_EPOCH = 1420070400000L;
public static final long TIMESTAMP_OFFSET = 22;
private static final DateTimeFormatter dtFormatter = DateTimeFormatter.RFC_1123_DATE_TIME;
/**
* Gets the creation-time of a JDA-entity by doing the reverse snowflake algorithm on its id.
* This returns the creation-time of the actual entity on Discords side, not inside JDA.
*
* @param entityId
* The id of the JDA entity where the creation-time should be determined for
*
* @return The creation time of the JDA entity as OffsetDateTime
*/
public static OffsetDateTime getCreationTime(long entityId)
{
long timestamp = ((entityId >>> TIMESTAMP_OFFSET) + DISCORD_EPOCH);
Calendar gmt = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
gmt.setTimeInMillis(timestamp);
return OffsetDateTime.ofInstant(gmt.toInstant(), gmt.getTimeZone().toZoneId());
}
/**
* Gets the creation-time of a JDA-entity by doing the reverse snowflake algorithm on its id.
* This returns the creation-time of the actual entity on Discords side, not inside JDA.
*
* @param entity
* The JDA entity where the creation-time should be determined for
*
* @throws IllegalArgumentException
* If the provided entity is {@code null}
*
* @return The creation time of the JDA entity as OffsetDateTime
*/
public static OffsetDateTime getCreationTime(ISnowflake entity)
{
Checks.notNull(entity, "Entity");
return getCreationTime(entity.getIdLong());
}
/**
* Returns a prettier String-representation of a OffsetDateTime object
*
* @param time
* The OffsetDateTime object to format
*
* @return The String of the formatted OffsetDateTime
*/
public static String getDateTimeString(OffsetDateTime time)
{
return time.format(dtFormatter);
}
/**
* Generates a new thread-safe {@link gnu.trove.map.TLongObjectMap TLongObjectMap}
* @param <T>
* The Object type
*
* @return a new thread-safe {@link gnu.trove.map.TLongObjectMap TLongObjectMap}
*/
public static <T> TLongObjectMap<T> newLongMap()
{
return TCollections.synchronizedMap(new TLongObjectHashMap<T>());
}
/**
* URL-Encodes the given String to UTF-8 after
* form-data specifications (space {@literal ->} +)
*
* @param chars
* The characters to encode
*
* @throws java.lang.RuntimeException
* If somehow the encoding fails
*
* @return The encoded String
*/
public static String encodeUTF8(String chars)
{
try
{
return URLEncoder.encode(chars, "UTF-8");
}
catch (UnsupportedEncodingException e)
{
throw new RuntimeException(e); // thanks JDK 1.4
}
}
public static long parseSnowflake(String input)
{
Checks.notEmpty(input, "ID");
try
{
if (!input.startsWith("-")) // if not negative -> parse unsigned
return Long.parseUnsignedLong(input);
else // if negative -> parse normal
return Long.parseLong(input);
}
catch (NumberFormatException ex)
{
throw new NumberFormatException(
String.format("The specified ID is not a valid snowflake (%s). Expecting a valid long value!", input));
}
}
/**
* Can be used to append a String to a formatter.
*
* @param formatter
* The {@link java.util.Formatter Formatter}
* @param width
* Minimum width to meet, filled with space if needed
* @param precision
* Maximum amount of characters to append
* @param leftJustified
* Whether or not to left-justify the value
* @param out
* The String to append
*/
public static void appendTo(Formatter formatter, int width, int precision, boolean leftJustified, String out)
{
try
{
Appendable appendable = formatter.out();
if (precision > -1 && out.length() > precision)
{
appendable.append(StringUtils.truncate(out, precision));
return;
}
if (leftJustified)
appendable.append(StringUtils.rightPad(out, width));
else
appendable.append(StringUtils.leftPad(out, width));
}
catch (IOException e)
{
throw new AssertionError(e);
}
}
/**
* Returns a new request body that transmits the provided {@link java.io.InputStream InputStream}.
*
* @param contentType
* The {@link okhttp3.MediaType MediaType} of the data
* @param stream
* The {@link java.io.InputStream InputStream} to be transmitted
*/
public static RequestBody createRequestBody(final MediaType contentType, final InputStream stream)
{
return new RequestBody()
{
@Override
public MediaType contentType()
{
return contentType;
}
@Override
public void writeTo(BufferedSink sink) throws IOException
{
try (Source source = Okio.source(stream))
{
sink.writeAll(source);
}
}
};
}
}