updated code for kona libs, not quite working yet.

[feisty_meow.git] / kona / src / org / feistymeow / filesystem / PathHelper.java

diff --git a/kona/src/org/feistymeow/filesystem/PathHelper.java b/kona/src/org/feistymeow/filesystem/PathHelper.java
new file mode 100644 (file)
index 0000000..eadd42c
--- /dev/null
+++ b/kona/src/org/feistymeow/filesystem/PathHelper.java
@@ -0,0 +1,38 @@
+package org.feistymeow.filesystem;\r
+\r
+import java.net.URLDecoder;\r
+\r
+import org.apache.commons.logging.Log;\r
+import org.apache.commons.logging.LogFactory;\r
+\r
+/*\r
+ * Provides access to the relevant paths for a Java application.\r
+ * This class cannot provide static members due to runtime constraints.\r
+ * \r
+ * @author Chris Koeritz\r
+ */\r
+public class PathHelper {\r
+    private static Log c_logger = LogFactory.getLog(PathHelper.class);\r
+    \r
+       // locates the home directory where *this* application is installed.\r
+       // this can be used as a root path for finding configuration files\r
+       // needed by the application.\r
+       public String findHome() {\r
+               String path = ".";\r
+               try {\r
+                       path = URLDecoder.decode(getClass().getProtectionDomain().getCodeSource().getLocation().getPath(), "x-www-form-urlencoded");\r
+                       // we remove the leading slash that is sometimes present, but only if the path looks.\r
+                       // like a dos path.\r
+                       if ( (path.length() >=3) && (path.charAt(0) == '/') && (path.charAt(2) == ':') )\r
+                               path = path.substring(1);\r
+                       // we chop the last component off, because we want an actual path.\r
+                       int lastSlash = path.lastIndexOf('/');\r
+                       path = path.substring(0, lastSlash);\r
+               } catch (Exception ex) {\r
+                       c_logger.error("caught exception during path calculation: " + ex.toString());\r
+                       // unknown what we should say here, so we return the default.\r
+               }\r
+               return path;\r
+       }               \r
+};\r
+\r