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- /* ====================================================================
- 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.
- ==================================================================== */
- package org.apache.poi.util;
-
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- /**
- * An implementation of the {@link POILogger} using the
- * Apache Commons Logging framework. Which itself can be configured to
- * send log to various different log frameworks and even allows to create
- * a small wrapper for custom log frameworks.
- */
- public class CommonsLogger implements POILogger
- {
- private static final LogFactory _creator = LogFactory.getFactory();
- private Log log;
-
- @Override
- public void initialize(final String cat) {
- this.log = _creator.getInstance(cat);
- }
-
- /**
- * Log a message
- *
- * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
- * @param obj1 The object to log.
- */
- @Override
- public void _log(final int level, final Object obj1) {
- // FIXME: What happens if level is in between two levels (an even number)?
- // Should this be `if (level >= FATAL) ...`?
- switch (level) {
- case FATAL:
- if (log.isFatalEnabled()) {
- log.fatal(obj1);
- }
- break;
- case ERROR:
- if (log.isErrorEnabled()) {
- log.error(obj1);
- }
- break;
- case WARN:
- if (log.isWarnEnabled()) {
- log.warn(obj1);
- }
- break;
- case INFO:
- if (log.isInfoEnabled()) {
- log.info(obj1);
- }
- break;
- case DEBUG:
- if (log.isDebugEnabled()) {
- log.debug(obj1);
- }
- break;
- default:
- if (log.isTraceEnabled()) {
- log.trace(obj1);
- }
- break;
- }
- }
-
- /**
- * Log a message
- *
- * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
- * @param obj1 The object to log. This is converted to a string.
- * @param exception An exception to be logged
- */
- @Override
- public void _log(final int level, final Object obj1, final Throwable exception) {
- // FIXME: What happens if level is in between two levels (an even number)?
- // Should this be `if (level >= FATAL) ...`?
- switch (level) {
- case FATAL:
- if (log.isFatalEnabled()) {
- if (obj1 != null) {
- log.fatal(obj1, exception);
- } else {
- log.fatal(exception);
- }
- }
- break;
- case ERROR:
- if (log.isErrorEnabled()) {
- if (obj1 != null) {
- log.error(obj1, exception);
- } else {
- log.error(exception);
- }
- }
- break;
- case WARN:
- if (log.isWarnEnabled()) {
- if (obj1 != null) {
- log.warn(obj1, exception);
- } else {
- log.warn(exception);
- }
- }
- break;
- case INFO:
- if (log.isInfoEnabled()) {
- if (obj1 != null) {
- log.info(obj1, exception);
- } else {
- log.info(exception);
- }
- }
- break;
- case DEBUG:
- if (log.isDebugEnabled()) {
- if (obj1 != null) {
- log.debug(obj1, exception);
- } else {
- log.debug(exception);
- }
- }
- break;
- default:
- if (log.isTraceEnabled()) {
- if (obj1 != null) {
- log.trace(obj1, exception);
- } else {
- log.trace(exception);
- }
- }
- break;
- }
- }
-
- /**
- * Check if a logger is enabled to log at the specified level
- *
- * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
- */
- @Override
- public boolean check(final int level)
- {
- // FIXME: What happens if level is in between two levels (an even number)?
- // Should this be `if (level >= FATAL) ...`?
- switch (level) {
- case FATAL:
- return log.isFatalEnabled();
- case ERROR:
- return log.isErrorEnabled();
- case WARN:
- return log.isWarnEnabled();
- case INFO:
- return log.isInfoEnabled();
- case DEBUG:
- return log.isDebugEnabled();
- default:
- return false;
- }
- }
- }
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