move LocalStorage from core to plat

[org.ibex.core.git] / src / org / ibex / plat / Platform.java

diff --git a/src/org/ibex/plat/Platform.java b/src/org/ibex/plat/Platform.java
index 389caa4..32fea9d 100644 (file)
--- a/src/org/ibex/plat/Platform.java
+++ b/src/org/ibex/plat/Platform.java
@@ -11,7 +11,7 @@ import org.ibex.js.*;
 import org.ibex.util.*;
 import org.ibex.graphics.*;
 import org.ibex.core.*;
-import org.ibex.graphics.*;
+import org.ibex.crypto.*;
 import org.ibex.core.*;
 import org.ibex.net.*;
 
@@ -378,6 +378,56 @@ public abstract class Platform {
             }
         }
     }
+
+    /** Manages access to ~/.ibex */
+    public static class LocalStorage {
+
+        static String ibexDirName = System.getProperty("user.home") + java.io.File.separatorChar + ".ibex";
+
+        static java.io.File ibexDir = null;
+        static java.io.File cacheDir = null;
+
+        static {
+            try {
+                ibexDir = new java.io.File(ibexDirName);
+                if (!ibexDir.mkdirs()) ibexDir = null;
+                try {
+                    cacheDir = new java.io.File(ibexDirName + java.io.File.separatorChar + "cache");
+                    if (!cacheDir.mkdirs()) cacheDir = null;
+                } catch (Exception e) {
+                    Log.warn(LocalStorage.class, "unable to create cache directory " +
+                             ibexDirName + java.io.File.separatorChar + "cache");
+                }
+            } catch (Exception e) {
+                Log.warn(LocalStorage.class, "unable to create ibex directory " + ibexDirName);
+            }
+        }
+
+        // FEATURE: we ought to be able to do stuff like sha1-checking and date checking on cached resources    
+        public static class Cache {
+
+            private static void delTree(java.io.File f) throws IOException {
+                if (f.isDirectory()) {
+                    String[] s = f.list();
+                    for(int i=0; i<s.length; i++)
+                        delTree(new java.io.File(f.getPath() + java.io.File.separatorChar + s[i]));
+                }
+                f.delete();
+            }
+
+            public static void flush() throws IOException {
+                delTree(cacheDir);
+                cacheDir.mkdirs();
+            }
+
+            public static java.io.File getCacheFileForKey(String key) {
+                // FEATURE: be smarter here
+                return new java.io.File(cacheDir.getPath() + File.separatorChar + new String(Encode.toBase64(key.getBytes())));
+            }
+
+        }
+    }
+
 }