org.ajax4jsf.framework.ajax.xmlfilter.Log4JConfigurator Maven / Gradle / Ivy

/**
 * Licensed under the Common Development and Distribution License,
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.sun.com/cddl/
 *   
 * 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.ajax4jsf.framework.ajax.xmlfilter;

import java.util.Properties;

import org.ajax4jsf.framework.util.message.Messages;
import org.apache.log4j.LogManager;
import org.apache.log4j.helpers.LogLog;
import org.apache.log4j.helpers.OptionConverter;
import org.apache.log4j.xml.DOMConfigurator;

/**
 * @author shura (latest modification by $Author: slava_kabanovich $)
 * @version $Revision: 1.2 $ $Date: 2006/07/11 15:54:51 $
 *
 */
class Log4JConfigurator {
	private static final String CONTEXT_ROOT_VARIABLE = "context-root";
	private Properties props = new Properties();
	private String prefix;
	
	DOMConfigurator domConfig;
	
	void doConfigure(String file){
		domConfig.doConfigure(prefix + file, LogManager.getLoggerRepository());
	}


	/**
	 * @param prefix
	 */
	public Log4JConfigurator(String prefix) {
		this.prefix = prefix;
		props.setProperty(CONTEXT_ROOT_VARIABLE, prefix);
		domConfig = new DOMConfigurator() {

			/*
			 * (non-Javadoc)
			 * 
			 * @see org.apache.log4j.xml.DOMConfigurator#subst(java.lang.String)
			 *      append context-related properties for variable
			 *      substitution.
			 */
			protected String subst(String value) {
				try {
					return OptionConverter.substVars(value, props);
				} catch (IllegalArgumentException e) {
					LogLog.warn(Messages.getMessage(Messages.VARIABLE_SUBSTITUTION_WARNING), e);
					return value;
				}
			};

		};
		}
}