[jboss-svn-commits] JBoss Common SVN: r2991 - common-logging-log4j/trunk/src/main/java/org/jboss/logging/log4j.

[jboss-svn-commits at lists.jboss.org]

Author: david.lloyd at jboss.com
Date: 2009-02-20 14:36:11 -0500 (Fri, 20 Feb 2009)
New Revision: 2991

Added:
   common-logging-log4j/trunk/src/main/java/org/jboss/logging/log4j/JDKLevel.java
Log:
Add a level class for JDK levels, to ease configuration using log4j.xml

Added: common-logging-log4j/trunk/src/main/java/org/jboss/logging/log4j/JDKLevel.java
===================================================================
--- common-logging-log4j/trunk/src/main/java/org/jboss/logging/log4j/JDKLevel.java	                        (rev 0)
+++ common-logging-log4j/trunk/src/main/java/org/jboss/logging/log4j/JDKLevel.java	2009-02-20 19:36:11 UTC (rev 2991)
@@ -0,0 +1,113 @@
+/*
+ * JBoss, Home of Professional Open Source
+ * Copyright 2008, JBoss Inc., and individual contributors as indicated
+ * by the @authors tag. See the copyright.txt in the distribution for a
+ * full listing of individual contributors.
+ *
+ * This 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 software 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 software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+
+package org.jboss.logging.log4j;
+
+import java.util.Map;
+import java.util.HashMap;
+
+import org.apache.log4j.Level;
+
+/**
+ * Log4j equivalents for JDK logging levels.  For configuration file usage.
+ */
+public final class JDKLevel extends Level {
+
+    private static final long serialVersionUID = -2456662804627419121L;
+
+    /**
+     * Instantiate a Level object.
+     */
+    protected JDKLevel(int level, String levelStr, int syslogEquivalent) {
+        super(level, levelStr, syslogEquivalent);
+    }
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#SEVERE SEVERE} level; numerically
+     * equivalent to log4j's {@link org.apache.log4j.Level#ERROR ERROR} level.
+     */
+    public static final Level SEVERE = new JDKLevel(40000, "SEVERE", 3);
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#WARNING WARNING} level; numerically
+     * equivalent to log4j's {@link org.apache.log4j.Level#WARN WARN} level.
+     */
+    public static final Level WARNING = new JDKLevel(30000, "WARNING", 4);
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#INFO INFO} level; numerically
+     * equivalent to log4j's {@link org.apache.log4j.Level#INFO INFO} level.
+     */
+    public static final Level INFO = new JDKLevel(20000, "INFO", 5);
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#CONFIG CONFIG} level; numerically
+     * falls between log4j's {@link org.apache.log4j.Level#INFO INFO} and {@link org.apache.log4j.Level#DEBUG DEBUG} levels.
+     */
+    public static final Level CONFIG = new JDKLevel(15000, "CONFIG", 6);
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#FINE FINE} level; numerically
+     * equivalent to log4j's {@link org.apache.log4j.Level#DEBUG DEBUG} level.
+     */
+    public static final Level FINE = new JDKLevel(10000, "FINE", 7);
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#FINER FINER} level; numerically
+     * falls between log4j's {@link org.apache.log4j.Level#DEBUG DEBUG} and {@link org.apache.log4j.Level#TRACE TRACE} levels.
+     */
+    public static final Level FINER = new JDKLevel(7500, "FINER", 7);
+
+    /**
+     * A mapping of the JDK logging {@link java.util.logging.Level#FINEST FINEST} level; numerically
+     * equivalent to log4j's {@link org.apache.log4j.Level#TRACE TRACE} level.
+     */
+    public static final Level FINEST = new JDKLevel(5000, "FINEST", 7);
+
+    private static final Map<String, Level> levelMapping = new HashMap<String, Level>();
+
+    private static void add(Level lvl) {
+        levelMapping.put(lvl.toString(), lvl);
+    }
+
+    static {
+        add(SEVERE);
+        add(WARNING);
+        add(INFO);
+        add(CONFIG);
+        add(FINE);
+        add(FINER);
+        add(FINEST);
+    }
+
+    /**
+     * Get the level for the given name.  If the level is not one of the levels defined in this class,
+     * this method delegates to {@link org.apache.log4j.Level#toLevel(String) toLevel(String)} on the superclass.
+     *
+     * @param name the level name
+     * @return the equivalent level
+     */
+    public static Level toLevel(String name) {
+        final Level level = levelMapping.get(name.trim().toUpperCase());
+        return level != null ? level : Level.toLevel(name);
+    }
+}