001/**
002 * Logback: the reliable, generic, fast and flexible logging framework.
003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
004 *
005 * This program and the accompanying materials are dual-licensed under
006 * either the terms of the Eclipse Public License v1.0 as published by
007 * the Eclipse Foundation
008 *
009 *   or (per the licensee's choosing)
010 *
011 * under the terms of the GNU Lesser General Public License version 2.1
012 * as published by the Free Software Foundation.
013 */
014package ch.qos.logback.core;
015
016import java.nio.charset.Charset;
017import java.nio.charset.StandardCharsets;
018
019public class CoreConstants {
020
021    final public static String DISABLE_SERVLET_CONTAINER_INITIALIZER_KEY = "logbackDisableServletContainerInitializer";
022    final public static String STATUS_LISTENER_CLASS_KEY = "logback.statusListenerClass";
023    final public static String SYSOUT = "SYSOUT";
024
025    final public static String STDOUT = "STDOUT";
026
027    /**
028     * Number of idle threads to retain in a context's executor service.
029     */
030    public static final int CORE_POOL_SIZE = 0;
031
032    // In Java 21 and later the actual threads are assumed to be virtual
033    public static final int SCHEDULED_EXECUTOR_POOL_SIZE = 4;
034
035    /**
036     * Maximum number of threads to allow in a context's executor service.
037     */
038    // if you need a different MAX_POOL_SIZE, please file create a github issue
039    // asking for a larger MAX_POOL_SIZE parameter.
040    public static final int MAX_POOL_SIZE = 32;
041
042    // Note that the line.separator property can be looked up even by
043    // applets.
044    public static final String LINE_SEPARATOR = System.getProperty("line.separator");
045    public static final int LINE_SEPARATOR_LEN = LINE_SEPARATOR.length();
046
047    public static final String CODES_URL = "http://logback.qos.ch/codes.html";
048    public static final String MANUAL_URL_PREFIX = "http://logback.qos.ch/manual/";
049    public static final String MORE_INFO_PREFIX = "For more information, please visit ";
050
051    /**
052     * The default context name.
053     */
054    public static final String DEFAULT_CONTEXT_NAME = "default";
055    /**
056     * Customized pattern conversion rules are stored under this key in the
057     * {@link Context} object store.
058     */
059    public static final String PATTERN_RULE_REGISTRY = "PATTERN_RULE_REGISTRY";
060
061    public static final String ISO8601_STR = "ISO8601";
062    public static final String ISO8601_PATTERN = "yyyy-MM-dd HH:mm:ss,SSS";
063
064    public static final String FILE_TIMESTAMP_PATTERN = "yyyy-MM-dd'T'HHmm";
065    public static final String DAILY_DATE_PATTERN = "yyyy-MM-dd";
066
067    /**
068     * Time format used in Common Log Format
069     */
070    public static final String CLF_DATE_PATTERN = "dd/MMM/yyyy:HH:mm:ss Z";
071
072    /**
073     * The key used in locating the evaluator map in context's object map.
074     */
075    public static final String EVALUATOR_MAP = "EVALUATOR_MAP";
076
077    /**
078     * Key used to locate a map Files used by FileAppender instances in context's
079     * object map.
080     * 
081     * Said map consists of entries of the type (appender name, File option)
082     */
083    public static final String FA_FILENAME_COLLISION_MAP = "FA_FILENAMES_MAP";
084
085    /**
086     * Key used to locate a collision map for RollingFileAppender instances in
087     * context's object map.
088     * 
089     * The collision map consists of entities of the type (appender name,
090     * FileNamePattern option)
091     */
092    public static final String RFA_FILENAME_PATTERN_COLLISION_MAP = "RFA_FILENAME_PATTERN_COLLISION_MAP";
093
094    /**
095     * By convention, we assume that the static method named "valueOf" taking a
096     * string argument can restore a given object from its string representation.
097     */
098    public static final String VALUE_OF = "valueOf";
099
100    /**
101     * An empty string.
102     */
103    public static final String EMPTY_STRING = "";
104
105    /**
106     * String value returned in case data is not available.
107     *
108     * For example, when caller information is not available this constant is used for file name,
109     * method name, etc.
110     */
111    public static final String NA = "?";
112
113    /**
114     * An empty string array.
115     */
116    public static final String[] EMPTY_STRING_ARRAY = new String[] {};
117
118    public static final Charset UTF_8_CHARSET = StandardCharsets.UTF_8;
119
120    /**
121     * An empty Class array.
122     */
123    public static final Class<?>[] EMPTY_CLASS_ARRAY = new Class[] {};
124    public static final String CAUSED_BY = "Caused by: ";
125    public static final String SUPPRESSED = "Suppressed: ";
126    public static final String WRAPPED_BY = "Wrapped by: ";
127
128    public static final char PERCENT_CHAR = '%';
129    public static final char LEFT_PARENTHESIS_CHAR = '(';
130    public static final char RIGHT_PARENTHESIS_CHAR = ')';
131
132    public static final char ESCAPE_CHAR = '\\';
133    public static final char CURLY_LEFT = '{';
134    public static final char CURLY_RIGHT = '}';
135    public static final char COMMA_CHAR = ',';
136    public static final char DOUBLE_QUOTE_CHAR = '"';
137    public static final char SINGLE_QUOTE_CHAR = '\'';
138    public static final char COLON_CHAR = ':';
139    public static final char DASH_CHAR = '-';
140    public static final String DEFAULT_VALUE_SEPARATOR = ":-";
141
142    public static final String NULL_STR = "null";
143    /**
144     * Number of rows before in an HTML table before, we close the table and create
145     * a new one
146     */
147    public static final int TABLE_ROW_LIMIT = 10000;
148
149    // reset the ObjectOutputStream every OOS_RESET_FREQUENCY calls
150    // this avoids serious memory leaks
151    public static final int OOS_RESET_FREQUENCY = 70;
152
153    // See https://jakarta.ee/specifications/platform/8/platform-spec-8.html#a616
154    // there are the java:comp, java:module, java:app, java:global namespaces
155    public static final String JNDI_JAVA_NAMESPACE = "java:";
156
157    // the max number of times an error should be reported
158    public static final int MAX_ERROR_COUNT = 4;
159
160    public static final char DOT = '.';
161    public static final char TAB = '\t';
162    public static final char DOLLAR = '$';
163
164    public static final String SEE_FNP_NOT_SET = "See also " + CODES_URL + "#tbr_fnp_not_set";
165    public static final String SEE_MISSING_INTEGER_TOKEN = "See also " + CODES_URL + "#sat_missing_integer_token";
166
167    public static final String CONFIGURATION_WATCH_LIST = "CONFIGURATION_WATCH_LIST";
168    public static final String CONFIGURATION_WATCH_LIST_RESET_X = "CONFIGURATION_WATCH_LIST_RESET";
169
170    public static final String SAFE_JORAN_CONFIGURATION = "SAFE_JORAN_CONFIGURATION";
171    public static final String XML_PARSING = "XML_PARSING";
172
173    // Context Object name for the shutdown hook
174    public static final String SHUTDOWN_HOOK_THREAD = "SHUTDOWN_HOOK";
175
176    /**
177     * The key under which the local host name is registered in the logger context.
178     */
179    public static final String HOSTNAME_KEY = "HOSTNAME";
180
181    public static final String UNKNOWN_LOCALHOST = "UNKNOWN_LOCALHOST";
182
183    /**
184     * The key under which the current context name is registered in the logger
185     * context.
186     */
187    public static final String CONTEXT_NAME_KEY = "CONTEXT_NAME";
188
189    public static final int BYTES_PER_INT = 4;
190    public static final long MILLIS_IN_ONE_SECOND = 1000;
191    public static final long MILLIS_IN_ONE_MINUTE = MILLIS_IN_ONE_SECOND * 60;
192    public static final long MILLIS_IN_ONE_HOUR = MILLIS_IN_ONE_MINUTE * 60;
193    public static final long MILLIS_IN_ONE_DAY = MILLIS_IN_ONE_HOUR * 24;
194    public static final long MILLIS_IN_ONE_WEEK = MILLIS_IN_ONE_DAY * 7;
195
196    /**
197     * The number of seconds to wait for compression jobs to finish.
198     */
199    public static final int SECONDS_TO_WAIT_FOR_COMPRESSION_JOBS = 30;
200
201    public static final String CONTEXT_SCOPE_VALUE = "context";
202
203    public static final String RESET_MSG_PREFIX = "Will reset and reconfigure context ";
204
205    public static final String JNDI_COMP_PREFIX = "java:comp/env";
206
207    public static final String UNDEFINED_PROPERTY_SUFFIX = "_IS_UNDEFINED";
208
209    public static final String LEFT_ACCOLADE = new String(new char[] { CURLY_LEFT });
210    public static final String RIGHT_ACCOLADE = new String(new char[] { CURLY_RIGHT });
211    public static final long UNBOUNDED_TOTAL_SIZE_CAP = 0;
212
213    /**
214     * If Rolling
215     */
216    public static final int UNBOUNDED_HISTORY = 0;
217    
218    /**
219     * Replaced by {@link CoreConstants#UNBOUNDED_HISTORY} with the same identical value.
220
221     * @deprecated
222     * @see #UNBOUNDED_HISTORY
223     */
224    public static final int UNBOUND_HISTORY = UNBOUNDED_HISTORY;
225    
226    //public static final String RECONFIGURE_ON_CHANGE_TASK = "RECONFIGURE_ON_CHANGE_TASK";
227    public static final String SIZE_AND_TIME_BASED_FNATP_IS_DEPRECATED = "SizeAndTimeBasedFNATP is deprecated. Use SizeAndTimeBasedRollingPolicy instead";
228
229    public static final String LOGBACK_CLASSIC_VERSION_MESSAGE = "This is logback-classic version ";
230    public static final char JSON_LINE_SEPARATOR = '\n';
231    final public static String MODEL_CONFIG_FILE_EXTENSION = ".scmo";
232}