1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache license, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the license for the specific language governing permissions and
15 * limitations under the license.
16 */
17 package org.apache.logging.log4j.core.util;
18
19 import org.apache.logging.log4j.util.PropertiesUtil;
20
21 import java.nio.charset.Charset;
22
23 /**
24 * Log4j Constants.
25 */
26 public final class Constants {
27
28 /**
29 * Name of the system property to use to identify the LogEvent factory.
30 */
31 public static final String LOG4J_LOG_EVENT_FACTORY = "Log4jLogEventFactory";
32
33 /**
34 * Name of the system property to use to identify the ContextSelector Class.
35 */
36 public static final String LOG4J_CONTEXT_SELECTOR = "Log4jContextSelector";
37
38 public static final String LOG4J_DEFAULT_STATUS_LEVEL = "Log4jDefaultStatusLevel";
39
40 /**
41 * JNDI context name string literal.
42 */
43 public static final String JNDI_CONTEXT_NAME = "java:comp/env/log4j/context-name";
44
45 /**
46 * Line separator.
47 */
48 public static final String LINE_SEPARATOR = PropertiesUtil.getProperties().getStringProperty("line.separator", "\n");
49
50 /**
51 * Number of milliseconds in a second.
52 */
53 public static final int MILLIS_IN_SECONDS = 1000;
54
55 /**
56 * Equivalent to StandardCharsets.UTF_8.
57 * @ToDo - Initialize with StandardCharsets.UTF_8 when Java 7 is the minimum version.
58 */
59 public static final Charset UTF_8 = Charset.forName("UTF-8");
60
61 /**
62 * Prevent class instantiation.
63 */
64 private Constants() {
65 }
66 }