001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements. See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache license, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License. You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the license for the specific language governing permissions and
015     * limitations under the license.
016     */
017    package org.apache.logging.log4j.core.helpers;
018    
019    import org.apache.logging.log4j.util.PropertiesUtil;
020    
021    /**
022     * Log4j Constants.
023     */
024    public final class Constants {
025    
026        /**
027         * Name of the system property to use to identify the ContextSelector Class.
028         */
029        public static final String LOG4J_CONTEXT_SELECTOR = "Log4jContextSelector";
030    
031        /**
032         * JNDI context name string literal.
033         */
034        public static final String JNDI_CONTEXT_NAME = "java:comp/env/log4j/context-name";
035    
036        /**
037         * Line separator.
038         */
039        public static final String LINE_SEP = PropertiesUtil.getProperties().getStringProperty("line.separator", "\n");
040    
041        /**
042         * Number of milliseconds in a second.
043         */
044        public static final int MILLIS_IN_SECONDS = 1000;
045    
046        /**
047         * Prevent class instantiation.
048         */
049        private Constants() {
050        }
051    }