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
215
|
/*
* This file is part of spark.
*
* Copyright (c) lucko (Luck) <luck@lucko.me>
* Copyright (c) contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package me.lucko.spark.common;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.TimeUnit;
public class ActivityLog {
private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
private static final JsonParser PARSER = new JsonParser();
private final Path file;
private final LinkedList<Activity> log = new LinkedList<>();
private final Object[] mutex = new Object[0];
public ActivityLog(Path file) {
this.file = file;
}
public void addToLog(Activity activity) {
synchronized (this.mutex) {
this.log.addFirst(activity);
}
save();
}
public List<Activity> getLog() {
synchronized (this.mutex) {
return new LinkedList<>(this.log);
}
}
public void save() {
JsonArray array = new JsonArray();
synchronized (this.mutex) {
for (Activity activity : this.log) {
if (!activity.shouldExpire()) {
array.add(activity.serialize());
}
}
}
try {
Files.createDirectories(this.file.getParent());
} catch (IOException e) {
// ignore
}
try (BufferedWriter writer = Files.newBufferedWriter(this.file, StandardCharsets.UTF_8)) {
GSON.toJson(array, writer);
} catch (IOException e) {
e.printStackTrace();
}
}
public void load() {
if (!Files.exists(this.file)) {
synchronized (this.mutex) {
this.log.clear();
return;
}
}
JsonArray array;
try (BufferedReader reader = Files.newBufferedReader(this.file, StandardCharsets.UTF_8)) {
array = PARSER.parse(reader).getAsJsonArray();
} catch (IOException e) {
e.printStackTrace();
return;
}
boolean save = false;
synchronized (this.mutex) {
this.log.clear();
for (JsonElement element : array) {
try {
Activity activity = Activity.deserialize(element);
if (activity.shouldExpire()) {
save = true;
}
this.log.add(activity);
} catch (Exception e) {
e.printStackTrace();
}
}
}
if (save) {
try {
save();
} catch (Exception e) {
// ignore
}
}
}
public static final class Activity {
private final CommandSender.Data user;
private final long time;
private final String type;
private final String dataType;
private final String dataValue;
public static Activity urlActivity(CommandSender user, long time, String type, String url) {
return new Activity(user.toData(), time, type, "url", url);
}
public static Activity fileActivity(CommandSender user, long time, String type, String filePath) {
return new Activity(user.toData(), time, type, "file", filePath);
}
private Activity(CommandSender.Data user, long time, String type, String dataType, String dataValue) {
this.user = user;
this.time = time;
this.type = type;
this.dataType = dataType;
this.dataValue = dataValue;
}
public CommandSender.Data getUser() {
return this.user;
}
public long getTime() {
return this.time;
}
public String getType() {
return this.type;
}
public String getDataType() {
return this.dataType;
}
public String getDataValue() {
return this.dataValue;
}
public boolean shouldExpire() {
if (dataType.equals("url")) {
return (System.currentTimeMillis() - this.time) > TimeUnit.DAYS.toMillis(7);
} else {
return false;
}
}
public JsonObject serialize() {
JsonObject object = new JsonObject();
object.add("user", this.user.serialize());
object.add("time", new JsonPrimitive(this.time));
object.add("type", new JsonPrimitive(this.type));
JsonObject data = new JsonObject();
data.add("type", new JsonPrimitive(this.dataType));
data.add("value", new JsonPrimitive(this.dataValue));
object.add("data", data);
return object;
}
public static Activity deserialize(JsonElement element) {
JsonObject object = element.getAsJsonObject();
CommandSender.Data user = CommandSender.Data.deserialize(object.get("user"));
long time = object.get("time").getAsJsonPrimitive().getAsLong();
String type = object.get("type").getAsJsonPrimitive().getAsString();
JsonObject dataObject = object.get("data").getAsJsonObject();
String dataType = dataObject.get("type").getAsJsonPrimitive().getAsString();
String dataValue = dataObject.get("value").getAsJsonPrimitive().getAsString();
return new Activity(user, time, type, dataType, dataValue);
}
}
}
|
