A a class to hold enums for the level at which to log.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270399 13f79535-47bb-0310-9956-ffa450edef68

proposal/myrmidon/src/java/org/apache/antlib/core/LogLevel.java

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+/*
+ * Copyright (C) The Apache Software Foundation. All rights reserved.
+ *
+ * This software is published under the terms of the Apache Software License
+ * version 1.1, a copy of which has been included with this distribution in
+ * the LICENSE.txt file.
+ */
+package org.apache.antlib.core;
+
+import java.util.HashMap;
+import java.util.Set;
+import org.apache.avalon.framework.Enum;
+
+/**
+ * Type safe Enum for Log Levels.
+ *
+ * @author <a href="mailto:peter@apache.org">Peter Donald</a>
+ */
+public final class LogLevel
+    extends Enum
+{
+    //Map for all the levels
+    private static final HashMap c_levels = new HashMap();
+
+    //standard enums for version of JVM
+    public final static LogLevel FATAL_ERROR = new LogLevel( "fatalError" );
+    public final static LogLevel ERROR = new LogLevel( "error" );
+    public final static LogLevel WARN = new LogLevel( "warn" );
+    public final static LogLevel INFO = new LogLevel( "info" );
+    public final static LogLevel DEBUG = new LogLevel( "debug" );
+
+    /**
+     * Retrieve the log level for the specified name.
+     *
+     * @param name the name of the LogLevel object to retrieve
+     * @returns The LogLevel for specified name or null
+     */
+    public static LogLevel getByName( final String name )
+    {
+        return (LogLevel)c_levels.get( name );
+    }
+
+    /**
+     * Retrieve the names of all the LogLevels.
+     *
+     * @returns The names of all the LogLevels
+     */
+    public static String[] getNames( )
+    {
+        final Set keys = c_levels.keySet();
+        return (String[])keys.toArray( new String[ keys.size() ] );
+    }
+
+    /**
+     * Private constructor so no instance except here can be defined.
+     *
+     * @param name the name of Log Level
+     */
+    private LogLevel( final String name )
+    {
+        super( name, c_levels );
+    }
+}