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 java.nio.charset.Charset;
20 import java.nio.charset.StandardCharsets;
21
22 import org.apache.logging.log4j.util.PropertiesUtil;
23
24 /**
25 * Log4j Constants.
26 */
27 public final class Constants {
28
29 /**
30 * Name of the system property to use to identify the LogEvent factory.
31 */
32 public static final String LOG4J_LOG_EVENT_FACTORY = "Log4jLogEventFactory";
33
34 /**
35 * Name of the system property to use to identify the ContextSelector Class.
36 */
37 public static final String LOG4J_CONTEXT_SELECTOR = "Log4jContextSelector";
38
39 public static final String LOG4J_DEFAULT_STATUS_LEVEL = "Log4jDefaultStatusLevel";
40
41 /**
42 * JNDI context name string literal.
43 */
44 public static final String JNDI_CONTEXT_NAME = "java:comp/env/log4j/context-name";
45
46 /**
47 * Line separator.
48 */
49 public static final String LINE_SEPARATOR = PropertiesUtil.getProperties().getStringProperty("line.separator", "\n");
50
51 /**
52 * Number of milliseconds in a second.
53 */
54 public static final int MILLIS_IN_SECONDS = 1000;
55
56 /**
57 * Equivalent to StandardCharsets.UTF_8.
58 *
59 * @deprecated Use {@link StandardCharsets#UTF_8}. Will be removed in 2.5.
60 */
61 @Deprecated
62 public static final Charset UTF_8 = StandardCharsets.UTF_8;
63
64 /**
65 * Prevent class instantiation.
66 */
67 private Constants() {
68 }
69 }