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08fe2e33 NR |
1 | package be.nikiroo.fanfix; |
2 | ||
3 | import java.io.File; | |
4 | import java.io.IOException; | |
5 | ||
6 | import be.nikiroo.fanfix.bundles.Config; | |
7 | import be.nikiroo.fanfix.bundles.ConfigBundle; | |
8 | import be.nikiroo.fanfix.bundles.StringIdBundle; | |
2206ef66 | 9 | import be.nikiroo.fanfix.output.BasicOutput.OutputType; |
08fe2e33 NR |
10 | import be.nikiroo.utils.resources.Bundles; |
11 | ||
12 | /** | |
13 | * Global state for the program (services and singletons). | |
14 | * | |
15 | * @author niki | |
16 | */ | |
17 | public class Instance { | |
18 | private static ConfigBundle config; | |
19 | private static StringIdBundle trans; | |
20 | private static Cache cache; | |
21 | private static Library lib; | |
22 | private static boolean debug; | |
23 | private static File coverDir; | |
3727aae2 | 24 | private static File readerTmp; |
08fe2e33 NR |
25 | |
26 | static { | |
948637bc | 27 | // Most of the rest is dependent upon this: |
08fe2e33 NR |
28 | config = new ConfigBundle(); |
29 | ||
fe999aa4 NR |
30 | String configDir = System.getenv("CONFIG_DIR"); |
31 | if (configDir == null) { | |
32 | configDir = new File(System.getProperty("user.home"), ".fanfix") | |
33 | .getPath(); | |
34 | } | |
35 | if (configDir != null) { | |
36 | if (!new File(configDir).exists()) { | |
37 | new File(configDir).mkdirs(); | |
38 | } else { | |
39 | Bundles.setDirectory(configDir); | |
40 | } | |
41 | ||
42 | try { | |
43 | config = new ConfigBundle(); | |
44 | config.updateFile(configDir); | |
45 | } catch (IOException e) { | |
46 | syserr(e); | |
47 | } | |
48 | try { | |
49 | trans = new StringIdBundle(getLang()); | |
50 | trans.updateFile(configDir); | |
51 | } catch (IOException e) { | |
52 | syserr(e); | |
53 | } | |
54 | ||
55 | Bundles.setDirectory(configDir); | |
56 | } | |
57 | ||
08fe2e33 | 58 | trans = new StringIdBundle(getLang()); |
68686a37 | 59 | try { |
2206ef66 NR |
60 | lib = new Library(getFile(Config.LIBRARY_DIR), |
61 | OutputType.INFO_TEXT, OutputType.CBZ); | |
68686a37 NR |
62 | } catch (Exception e) { |
63 | syserr(new IOException("Cannot create library for directory: " | |
64 | + getFile(Config.LIBRARY_DIR), e)); | |
65 | } | |
2206ef66 | 66 | |
08fe2e33 NR |
67 | debug = Instance.getConfig().getBoolean(Config.DEBUG_ERR, false); |
68 | coverDir = getFile(Config.DEFAULT_COVERS_DIR); | |
3727aae2 NR |
69 | File tmp = getFile(Config.CACHE_DIR); |
70 | readerTmp = getFile(Config.CACHE_DIR_LOCAL_READER); | |
71 | ||
d0114000 NR |
72 | if (checkEnv("NOUTF")) { |
73 | trans.setUnicode(false); | |
74 | } | |
75 | ||
76 | if (checkEnv("DEBUG")) { | |
77 | debug = true; | |
78 | } | |
79 | ||
3727aae2 NR |
80 | if (tmp == null || readerTmp == null) { |
81 | String tmpDir = System.getProperty("java.io.tmpdir"); | |
82 | if (tmpDir != null) { | |
83 | if (tmp == null) { | |
84 | tmp = new File(tmpDir, "fanfic-tmp"); | |
85 | } | |
86 | if (readerTmp == null) { | |
7de079f1 | 87 | readerTmp = new File(tmpDir, "fanfic-reader"); |
3727aae2 NR |
88 | } |
89 | } else { | |
90 | syserr(new IOException( | |
91 | "The system does not have a default temporary directory")); | |
92 | } | |
93 | } | |
08fe2e33 NR |
94 | |
95 | if (coverDir != null && !coverDir.exists()) { | |
96 | syserr(new IOException( | |
97 | "The 'default covers' directory does not exists: " | |
98 | + coverDir)); | |
99 | coverDir = null; | |
100 | } | |
08fe2e33 | 101 | |
08fe2e33 | 102 | try { |
08fe2e33 NR |
103 | String ua = config.getString(Config.USER_AGENT); |
104 | int hours = config.getInteger(Config.CACHE_MAX_TIME_CHANGING, -1); | |
105 | int hoursLarge = config | |
106 | .getInteger(Config.CACHE_MAX_TIME_STABLE, -1); | |
107 | ||
08fe2e33 NR |
108 | cache = new Cache(tmp, ua, hours, hoursLarge); |
109 | } catch (IOException e) { | |
110 | syserr(new IOException( | |
111 | "Cannot create cache (will continue without cache)", e)); | |
112 | } | |
113 | } | |
114 | ||
115 | /** | |
116 | * Get the (unique) configuration service for the program. | |
117 | * | |
118 | * @return the configuration service | |
119 | */ | |
120 | public static ConfigBundle getConfig() { | |
121 | return config; | |
122 | } | |
123 | ||
124 | /** | |
125 | * Get the (unique) {@link Cache} for the program. | |
126 | * | |
127 | * @return the {@link Cache} | |
128 | */ | |
129 | public static Cache getCache() { | |
130 | return cache; | |
131 | } | |
132 | ||
133 | /** | |
134 | * Get the (unique) {link StringIdBundle} for the program. | |
135 | * | |
136 | * @return the {link StringIdBundle} | |
137 | */ | |
138 | public static StringIdBundle getTrans() { | |
139 | return trans; | |
140 | } | |
141 | ||
142 | /** | |
143 | * Get the (unique) {@link Library} for the program. | |
144 | * | |
145 | * @return the {@link Library} | |
146 | */ | |
147 | public static Library getLibrary() { | |
148 | return lib; | |
149 | } | |
150 | ||
151 | /** | |
152 | * Return the directory where to look for default cover pages. | |
153 | * | |
154 | * @return the default covers directory | |
155 | */ | |
156 | public static File getCoverDir() { | |
157 | return coverDir; | |
158 | } | |
159 | ||
3727aae2 NR |
160 | /** |
161 | * Return the directory where to store temporary files for the local reader. | |
162 | * | |
163 | * @return the directory | |
164 | */ | |
165 | public static File getReaderDir() { | |
166 | return readerTmp; | |
167 | } | |
168 | ||
08fe2e33 NR |
169 | /** |
170 | * Report an error to the user | |
171 | * | |
172 | * @param e | |
173 | * the {@link Exception} to report | |
174 | */ | |
175 | public static void syserr(Exception e) { | |
176 | if (debug) { | |
177 | e.printStackTrace(); | |
178 | } else { | |
179 | System.err.println(e.getMessage()); | |
180 | } | |
181 | } | |
182 | ||
183 | /** | |
184 | * Return a path, but support the special $HOME variable. | |
185 | * | |
186 | * @return the path | |
187 | */ | |
188 | private static File getFile(Config id) { | |
189 | File file = null; | |
190 | String path = config.getString(id); | |
191 | if (path != null && !path.isEmpty()) { | |
192 | path = path.replace('/', File.separatorChar); | |
193 | if (path.contains("$HOME")) { | |
194 | path = path.replace("$HOME", | |
195 | "" + System.getProperty("user.home")); | |
196 | } | |
197 | ||
198 | file = new File(path); | |
199 | } | |
200 | ||
201 | return file; | |
202 | } | |
203 | ||
204 | /** | |
205 | * The language to use for the application (NULL = default system language). | |
206 | * | |
207 | * @return the language | |
208 | */ | |
209 | private static String getLang() { | |
210 | String lang = config.getString(Config.LANG); | |
211 | ||
212 | if (System.getenv("LANG") != null && !System.getenv("LANG").isEmpty()) { | |
213 | lang = System.getenv("LANG"); | |
214 | } | |
215 | ||
216 | if (lang != null && lang.isEmpty()) { | |
217 | lang = null; | |
218 | } | |
219 | ||
220 | return lang; | |
221 | } | |
d0114000 NR |
222 | |
223 | /** | |
224 | * Check that the given environment variable is "enabled". | |
225 | * | |
226 | * @param key | |
227 | * the variable to check | |
228 | * | |
229 | * @return TRUE if it is | |
230 | */ | |
231 | private static boolean checkEnv(String key) { | |
232 | String value = System.getenv(key); | |
233 | if (value != null) { | |
234 | value = value.trim().toLowerCase(); | |
235 | if ("yes".equals(value) || "true".equals(value) | |
236 | || "on".equals(value) || "1".equals(value) | |
237 | || "y".equals(value)) { | |
238 | return true; | |
239 | } | |
240 | } | |
241 | ||
242 | return false; | |
243 | } | |
08fe2e33 | 244 | } |