| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.events; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import org.apache.fop.events.model.EventSeverity; |
| |
| /** |
| * EventListener implementation that redirects events to Commons Logging. The events are |
| * converted to localized messages. |
| */ |
| public class LoggingEventListener implements EventListener { |
| |
| /** Default logger instance */ |
| private static Log defaultLog = LogFactory.getLog(LoggingEventListener.class); |
| |
| private Log log; |
| private boolean skipFatal; |
| |
| /** |
| * Creates an instance logging to the default log category of this class. |
| */ |
| public LoggingEventListener() { |
| this(defaultLog); |
| } |
| |
| /** |
| * Creates an instance logging to a given logger. Events with fatal severity level will be |
| * skipped. |
| * @param log the target logger |
| */ |
| public LoggingEventListener(Log log) { |
| this(log, true); |
| } |
| |
| /** |
| * Creates an instance logging to a given logger. |
| * @param log the target logger |
| * @param skipFatal true if events with fatal severity level should be skipped (i.e. not logged) |
| */ |
| public LoggingEventListener(Log log, boolean skipFatal) { |
| this.log = log; |
| this.skipFatal = skipFatal; |
| } |
| |
| /** |
| * Returns the target logger for this instance. |
| * @return the target logger |
| */ |
| public Log getLog() { |
| return this.log; |
| } |
| |
| /** {@inheritDoc} */ |
| public void processEvent(Event event) { |
| String msg = EventFormatter.format(event); |
| EventSeverity severity = event.getSeverity(); |
| if (severity == EventSeverity.INFO) { |
| log.info(msg); |
| } else if (severity == EventSeverity.WARN) { |
| log.warn(msg); |
| } else if (severity == EventSeverity.ERROR) { |
| log.error(msg); |
| } else if (severity == EventSeverity.FATAL) { |
| if (!skipFatal) { |
| log.fatal(msg); |
| } |
| } else { |
| assert false; |
| } |
| } |
| |
| } |