| /* PreciseFilter.java -- filter log messages by precise level. |
| Copyright (C) 2005 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under terms |
| of your choice, provided that you also meet, for each linked independent |
| module, the terms and conditions of the license of that module. An |
| independent module is a module which is not derived from or based on |
| this library. If you modify this library, you may extend this exception |
| to your version of the library, but you are not obligated to do so. If |
| you do not wish to do so, delete this exception statement from your |
| version. */ |
| |
| |
| package gnu.classpath.debug; |
| |
| import java.util.BitSet; |
| import java.util.logging.Filter; |
| import java.util.logging.LogRecord; |
| |
| public final class PreciseFilter implements Filter |
| { |
| |
| /** |
| * The singleton filter instance. |
| */ |
| public static final PreciseFilter GLOBAL = new PreciseFilter (); |
| |
| private final BitSet enabled; |
| |
| private PreciseFilter () |
| { |
| enabled = new BitSet (); |
| } |
| |
| /** |
| * Disable logging of a component. |
| * |
| * @param component The component to disable logging for. |
| * @throws NullPointerException If component is null. |
| */ |
| public void disable (final Component component) |
| { |
| enabled.clear (component.startIndex (), component.endIndex ()); |
| } |
| |
| /** |
| * Enable logging of a component. |
| * |
| * @param component The component to enable logging for. |
| * @throws NullPointerException If component is null. |
| */ |
| public void enable (final Component component) |
| { |
| enabled.set (component.startIndex (), component.endIndex ()); |
| } |
| |
| /** |
| * Tell if a component is enabled for logging. |
| * |
| * @param component The component to test. |
| * @return True iff the specified component is enabled for logging. |
| * @throws NullPointerException If component is null. |
| */ |
| public boolean isEnabled (final Component component) |
| { |
| return (enabled.get (component.startIndex ())); |
| } |
| |
| public boolean isLoggable (final LogRecord record) |
| { |
| try |
| { |
| return isEnabled ((Component) record.getLevel ()); |
| } |
| catch (ClassCastException cce) |
| { |
| return true; |
| } |
| } |
| } |