allow clean disk cache

[fanfix.git] / src / be / nikiroo / fanfix / Instance.java

diff --git a/src/be/nikiroo/fanfix/Instance.java b/src/be/nikiroo/fanfix/Instance.java
index ed22f6217b13fd57bb28953f188c59f98f2321a4..391bb2f5b19c22a93e5d43838128e6f09fd61713 100644 (file)
--- a/src/be/nikiroo/fanfix/Instance.java
+++ b/src/be/nikiroo/fanfix/Instance.java
@@ -8,6 +8,7 @@ import be.nikiroo.fanfix.bundles.Config;
 import be.nikiroo.fanfix.bundles.ConfigBundle;
 import be.nikiroo.fanfix.bundles.StringId;
 import be.nikiroo.fanfix.bundles.StringIdBundle;
+import be.nikiroo.fanfix.bundles.StringIdGuiBundle;
 import be.nikiroo.fanfix.bundles.UiConfig;
 import be.nikiroo.fanfix.bundles.UiConfigBundle;
 import be.nikiroo.fanfix.library.BasicLibrary;
@@ -16,6 +17,7 @@ import be.nikiroo.fanfix.library.LocalLibrary;
 import be.nikiroo.fanfix.library.RemoteLibrary;
 import be.nikiroo.utils.Cache;
 import be.nikiroo.utils.IOUtils;
+import be.nikiroo.utils.TempFiles;
 import be.nikiroo.utils.TraceHandler;
 import be.nikiroo.utils.resources.Bundles;
 
@@ -29,12 +31,16 @@ public class Instance {
        private static UiConfigBundle uiconfig;
        private static StringIdBundle trans;
        private static DataLoader cache;
+       private static StringIdGuiBundle transGui;
        private static BasicLibrary lib;
        private static File coverDir;
        private static File readerTmp;
        private static File remoteDir;
        private static String configDir;
        private static TraceHandler tracer;
+       private static TempFiles tempFiles;
+
+       private static File cacheDir;
 
        static {
                // Before we can configure it:
@@ -67,17 +73,17 @@ public class Instance {
                lib = createDefaultLibrary(remoteDir);
 
                // create cache
-               File tmp = getFile(Config.CACHE_DIR);
-               if (tmp == null) {
+               cacheDir = getFile(Config.CACHE_DIR);
+               if (cacheDir == null) {
                        // Could have used: System.getProperty("java.io.tmpdir")
-                       tmp = new File(configDir, "tmp");
+                       cacheDir = new File(configDir, "tmp");
                }
                String ua = config.getString(Config.USER_AGENT);
                try {
                        int hours = config.getInteger(Config.CACHE_MAX_TIME_CHANGING, -1);
                        int hoursLarge = config
                                        .getInteger(Config.CACHE_MAX_TIME_STABLE, -1);
-                       cache = new DataLoader(tmp, ua, hours, hoursLarge);
+                       cache = new DataLoader(cacheDir, ua, hours, hoursLarge);
                } catch (IOException e) {
                        tracer.error(new IOException(
                                        "Cannot create cache (will continue without cache)", e));
@@ -99,6 +105,12 @@ public class Instance {
                                                        + coverDir));
                        coverDir = null;
                }
+
+               try {
+                       tempFiles = new TempFiles("fanfix");
+               } catch (IOException e) {
+                       tracer.error(new IOException("Cannot create temporary directory", e));
+               }
        }
 
        /**
@@ -192,6 +204,8 @@ public class Instance {
 
        /**
         * Get the (unique) {link StringIdBundle} for the program.
+        * <p>
+        * This is used for the translations of the core parts of Fanfix.
         * 
         * @return the {link StringIdBundle}
         */
@@ -199,6 +213,17 @@ public class Instance {
                return trans;
        }
 
+       /**
+        * Get the (unique) {link StringIdGuiBundle} for the program.
+        * <p>
+        * This is used for the translations of the GUI parts of Fanfix.
+        * 
+        * @return the {link StringIdGuiBundle}
+        */
+       public static StringIdGuiBundle getTransGui() {
+               return transGui;
+       }
+
        /**
         * Get the (unique) {@link LocalLibrary} for the program.
         * 
@@ -304,6 +329,25 @@ public class Instance {
                }
        }
 
+       /**
+        * The facility to use temporary files in this program.
+        * <p>
+        * <b>MUST</b> be closed at end of program.
+        * 
+        * @return the facility
+        */
+       public static TempFiles getTempFiles() {
+               return tempFiles;
+       }
+
+       /**
+        * Delete all the cache files, can be very long...
+        */
+       public static void PATCH_emptyCache() {
+               IOUtils.deltree(cacheDir);
+               cacheDir.mkdirs();
+       }
+
        /**
         * The configuration directory (will check, in order of preference,
         * {@link Bundles#getDirectory()}, the system properties, the environment
@@ -331,7 +375,8 @@ public class Instance {
 
        /**
         * Create the config variables ({@link Instance#config},
-        * {@link Instance#uiconfig} and {@link Instance#trans}).
+        * {@link Instance#uiconfig}, {@link Instance#trans} and
+        * {@link Instance#transGui}).
         * 
         * @param configDir
         *            the directory where to find the configuration files
@@ -361,6 +406,7 @@ public class Instance {
                // No updateFile for this one! (we do not want the user to have custom
                // translations that won't accept updates from newer versions)
                trans = new StringIdBundle(getLang());
+               transGui = new StringIdGuiBundle(getLang());
 
                // Fix an old bug (we used to store custom translation files by
                // default):
@@ -370,6 +416,7 @@ public class Instance {
 
                if (checkEnv("NOUTF")) {
                        trans.setUnicode(false);
+                       transGui.setUnicode(false);
                }
 
                Bundles.setDirectory(configDir);
@@ -508,8 +555,11 @@ public class Instance {
        private static String getLang() {
                String lang = config.getString(Config.LANG);
 
-               if (System.getenv("LANG") != null && !System.getenv("LANG").isEmpty()) {
-                       lang = System.getenv("LANG");
+               if (lang == null | lang.isEmpty()) {
+                       if (System.getenv("LANG") != null
+                                       && !System.getenv("LANG").isEmpty()) {
+                               lang = System.getenv("LANG");
+                       }
                }
 
                if (lang != null && lang.isEmpty()) {