allow force-init

[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 c547a2b121bdf07ae3e48ad146ad28ea07ed9c04..96d5d6f9a3031124cce38f8d59f81ea53138df2e 100644 (file)
--- a/src/be/nikiroo/fanfix/Instance.java
+++ b/src/be/nikiroo/fanfix/Instance.java
@@ -17,6 +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.Image;
 import be.nikiroo.utils.Proxy;
 import be.nikiroo.utils.TempFiles;
 import be.nikiroo.utils.TraceHandler;
@@ -41,7 +42,42 @@ public class Instance {
        private static TraceHandler tracer;
        private static TempFiles tempFiles;
 
-       static {
+       private static boolean init;
+
+       /**
+        * Initialise the instance -- if already initialised, nothing will happen.
+        * <p>
+        * Before calling this method, you may call
+        * {@link Bundles#setDirectory(String)} if wanted.
+        */
+       static public void init() {
+               init(false);
+       }
+
+       /**
+        * Initialise the instance -- if already initialised, nothing will happen
+        * unless you pass TRUE to <tt>force</tt>.
+        * <p>
+        * Before calling this method, you may call
+        * {@link Bundles#setDirectory(String)} if wanted.
+        * <p>
+        * Note: forcing the initialisation can be dangerous, so make sure to only
+        * make it under controlled circumstances -- for instance, at the start of
+        * the program, you could call {@link Instance#init()}, change some settings
+        * because you want to force those settings (it will also forbid users to
+        * change them!) and then call {@link Instance#init(boolean)} with
+        * <tt>force</tt> set to TRUE.
+        * 
+        * @param force
+        *            force the initialisation even if already initialised
+        */
+       static public void init(boolean force) {
+               if (init && !force) {
+                       return;
+               }
+
+               init = true;
+
                // Before we can configure it:
                Boolean debug = checkEnv("DEBUG");
                boolean trace = debug != null && debug;
@@ -71,7 +107,8 @@ public class Instance {
                remoteDir = new File(configDir, "remote");
                lib = createDefaultLibrary(remoteDir);
 
-               // create cache
+               // create cache and TMP
+               Image.setTemporaryFilesRoot(new File(configDir, "tmp.images"));
                File tmp = getFile(Config.CACHE_DIR);
                if (tmp == null) {
                        // Could have used: System.getProperty("java.io.tmpdir")
@@ -439,6 +476,7 @@ public class Instance {
                                                                + getFile(libDir), e));
                        }
                } else {
+                       Exception ex = null;
                        int pos = remoteLib.lastIndexOf(":");
                        if (pos >= 0) {
                                String port = remoteLib.substring(pos + 1).trim();
@@ -457,13 +495,14 @@ public class Instance {
                                                                lib);
 
                                        } catch (Exception e) {
+                                               ex = e;
                                        }
                                }
                        }
 
                        if (lib == null) {
                                tracer.error(new IOException(
-                                               "Cannot create remote library for: " + remoteLib));
+                                               "Cannot create remote library for: " + remoteLib, ex));
                        }
                }
 
@@ -547,7 +586,7 @@ public class Instance {
        private static String getLang() {
                String lang = config.getString(Config.LANG);
 
-               if (lang == null | lang.isEmpty()) {
+               if (lang == null || lang.isEmpty()) {
                        if (System.getenv("LANG") != null
                                        && !System.getenv("LANG").isEmpty()) {
                                lang = System.getenv("LANG");