1 /*
2 * *************************************************************************************************************************************************************
3 *
4 * TheseFoolishThings: Miscellaneous utilities
5 * http://tidalwave.it/projects/thesefoolishthings
6 *
7 * Copyright (C) 2009 - 2025 by Tidalwave s.a.s. (http://tidalwave.it)
8 *
9 * *************************************************************************************************************************************************************
10 *
11 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * 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
17 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
18 *
19 * *************************************************************************************************************************************************************
20 *
21 * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
22 * git clone https://github.com/tidalwave-it/thesefoolishthings-src
23 *
24 * *************************************************************************************************************************************************************
25 */
26 package it.tidalwave.util.impl;
27
28 import javax.annotation.Nonnull;
29 import java.util.HashMap;
30 import java.util.Locale;
31 import java.util.Map;
32 import java.util.Objects;
33 import java.util.Optional;
34 import java.io.IOException;
35 import java.nio.file.Files;
36 import java.nio.file.Path;
37 import java.nio.file.Paths;
38 import it.tidalwave.util.Key;
39 import it.tidalwave.util.PreferencesHandler;
40 import lombok.Getter;
41 import lombok.RequiredArgsConstructor;
42
43 /***************************************************************************************************************************************************************
44 *
45 * @author Fabrizio Giudici
46 *
47 **************************************************************************************************************************************************************/
48 @RequiredArgsConstructor
49 // PreferencesHandler can be used to programmatically set the log folder, so don't inject logger
50 public class DefaultPreferencesHandler implements PreferencesHandler
51 {
52 @Getter
53 private final Path appFolder;
54
55 @Getter
56 private final Path logFolder;
57
58 private final Map<Key<?>, Object> properties = new HashMap<>();
59
60 public DefaultPreferencesHandler()
61 {
62 try
63 {
64 final var appName = System.getProperty(PROP_APP_NAME);
65 Objects.requireNonNull(appName, "You must call PreferencesHandler.setAppName(\"...\") before getting here");
66
67 final var osName = System.getProperty("os.name").toLowerCase(Locale.getDefault());
68 var pattern = "";
69
70 switch (osName)
71 {
72 case "linux":
73 pattern = "%s/.%s/";
74 break;
75
76 case "mac os x":
77 pattern = "%s/Library/Application Support/%s/";
78 break;
79
80 case "windows":
81 pattern = "%s/AppData/Local/%s/";
82 break;
83
84 default:
85 throw new ExceptionInInitializerError("Unknown o.s.: " + osName);
86 }
87
88 final var home = System.getProperty("user.home", "/tmp");
89 appFolder = Paths.get(String.format(pattern, home, appName)).toAbsolutePath();
90 logFolder = appFolder.resolve("logs").toAbsolutePath();
91 Files.createDirectories(logFolder);
92 // PreferencesHandler can be used to programmatically set the log folder, so don't log yet
93 if (!Boolean.getBoolean(PROP_SUPPRESS_CONSOLE))
94 {
95 System.out.printf("App folder: %s%n", appFolder);
96 System.out.printf("Logging folder: %s%n", logFolder);
97 }
98 }
99 catch (IOException e)
100 {
101 throw new RuntimeException(e);
102 }
103 }
104
105 @Override @Nonnull
106 public <T> Optional<T> getProperty (@Nonnull final Key<T> name)
107 {
108 return Optional.ofNullable((T)properties.get(name));
109 }
110
111 @Override
112 public <T> void setProperty (@Nonnull final Key<T> name, @Nonnull final T value)
113 {
114 properties.put(name, value);
115 // FIXME: should be made persistent (JSON?)
116 }
117
118 @Override
119 public <T> void setDefaultProperty (@Nonnull final Key<T> name, @Nonnull final T value)
120 {
121 if (!properties.containsKey(name))
122 {
123 setProperty(name, value);
124 }
125 }
126 }