A bridge between samskivert's (old old old) logging facilities and Java's

(new new new) built-in logging system.


git-svn-id: https://samskivert.googlecode.com/svn/trunk@1536 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/samskivert/src/java/com/samskivert/util/LoggingLogProvider.java

@@ -0,0 +1,105 @@
+//
+// samskivert library - useful routines for java programs
+// Copyright (C) 2001-2004 Michael Bayne
+// 
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.samskivert.util;
+
+import java.util.HashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Configures the samskivert logging routines to use the Java logging
+ * facilities for logging. This provides a usable temporary bridge until
+ * things that use the (now legacy) samskivert logging routines can be
+ * converted to use Java's logging facilities directly.
+ */
+public class LoggingLogProvider
+    implements LogProvider
+{
+    // documentation inherited from interface
+    public void log (int level, String moduleName, String message)
+    {
+        getLogger(moduleName).log(getLevel(level), message);
+    }
+
+    // documentation inherited from interface
+    public void logStackTrace (int level, String moduleName, Throwable t)
+    {
+        getLogger(moduleName).log(getLevel(level), "", t);
+    }
+
+    // documentation inherited from interface
+    public void setLevel (String moduleName, int level)
+    {
+        getLogger(moduleName).setLevel(getLevel(level));
+    }
+
+    // documentation inherited from interface
+    public void setLevel (int level)
+    {
+        getLogger(null).setLevel(getLevel(level));
+    }
+
+    // documentation inherited from interface
+    public int getLevel (String moduleName)
+    {
+        return getLevel(getLogger(moduleName).getLevel());
+    }
+
+    // documentation inherited from interface
+    public int getLevel ()
+    {
+        return getLevel(getLogger(null).getLevel());
+    }
+
+    protected final Logger getLogger (String moduleName)
+    {
+        Logger logger = Logger.global;
+        if (!StringUtil.blank(moduleName)) {
+            logger = (Logger)_loggers.get(moduleName);
+            if (logger == null) {
+                _loggers.put(moduleName,
+                             logger = Logger.getLogger("moduleName"));
+            }
+        }
+        return logger;
+    }
+
+    protected static final Level getLevel (int level)
+    {
+        switch (level) {
+        case Log.DEBUG: return Level.FINE;
+        case Log.WARNING: return Level.WARNING;
+        default:
+        case Log.INFO: return Level.INFO;
+        }
+    }
+
+    protected static final int getLevel (Level level)
+    {
+        if (level == Level.WARNING) {
+            return Log.WARNING;
+        } else if (level == Level.INFO) {
+            return Log.INFO;
+        } else {
+            return Log.DEBUG;
+        }
+    }
+
+    protected HashMap _loggers = new HashMap();
+}