--- /dev/null
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.
+ */
+
+// Contributors: Kitching Simon <Simon.Kitching@orange.ch>
+// Nicholas Wolff
+
+package org.apache.log4j;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.ObjectStreamException;
+import java.io.Serializable;
+
+/**
+ * Defines the minimum set of levels recognized by the system, that is <code>OFF</code>, <code>FATAL</code>, <code>ERROR</code>,
+ * <code>WARN</code>, <code>INFO</code>, <code>DEBUG</code> and <code>ALL</code>.
+ *
+ * <p>
+ * The <code>Level</code> class may be subclassed to define a larger level set.
+ * </p>
+ *
+ * @author Ceki Gülcü
+ */
+public class Level extends Priority implements Serializable {
+
+ private static final String ALL_NAME = "ALL";
+
+ private static final String TRACE_NAME = "TRACE";
+
+ private static final String DEBUG_NAME = "DEBUG";
+
+ private static final String INFO_NAME = "INFO";
+
+ private static final String WARN_NAME = "WARN";
+
+ private static final String ERROR_NAME = "ERROR";
+
+ private static final String FATAL_NAME = "FATAL";
+
+ private static final String OFF_NAME = "OFF";
+
+ /**
+ * TRACE level integer value.
+ *
+ * @since 1.2.12
+ */
+ public static final int TRACE_INT = 5000;
+
+ /**
+ * The <code>OFF</code> has the highest possible rank and is intended to turn off logging.
+ */
+ final static public Level OFF = new Level(OFF_INT, OFF_NAME, 0);
+
+ /**
+ * The <code>FATAL</code> level designates very severe error events that will presumably lead the application to abort.
+ */
+ final static public Level FATAL = new Level(FATAL_INT, FATAL_NAME, 0);
+
+ /**
+ * The <code>ERROR</code> level designates error events that might still allow the application to continue running.
+ */
+ final static public Level ERROR = new Level(ERROR_INT, ERROR_NAME, 3);
+
+ /**
+ * The <code>WARN</code> level designates potentially harmful situations.
+ */
+ final static public Level WARN = new Level(WARN_INT, WARN_NAME, 4);
+
+ /**
+ * The <code>INFO</code> level designates informational messages that highlight the progress of the application at coarse-grained level.
+ */
+ final static public Level INFO = new Level(INFO_INT, INFO_NAME, 6);
+
+ /**
+ * The <code>DEBUG</code> Level designates fine-grained informational events that are most useful to debug an application.
+ */
+ final static public Level DEBUG = new Level(DEBUG_INT, DEBUG_NAME, 7);
+
+ /**
+ * The <code>TRACE</code> Level designates finer-grained informational events than the <code>DEBUG</code level.
+ *
+ * @since 1.2.12
+ */
+ public static final Level TRACE = new Level(TRACE_INT, TRACE_NAME, 7);
+
+ /**
+ * The <code>ALL</code> has the lowest possible rank and is intended to turn on all logging.
+ */
+ final static public Level ALL = new Level(ALL_INT, ALL_NAME, 7);
+
+ /**
+ * Serialization version id.
+ */
+ static final long serialVersionUID = 3491141966387921974L;
+
+ /**
+ * Instantiate a Level object.
+ */
+ protected Level(int level, String levelStr, int syslogEquivalent) {
+ super(level, levelStr, syslogEquivalent);
+ }
+
+ /**
+ * Convert the string passed as argument to a level. If the conversion fails, then this method returns {@link #DEBUG}.
+ */
+ public static Level toLevel(String sArg) {
+ return toLevel(sArg, Level.DEBUG);
+ }
+
+ /**
+ * Convert an integer passed as argument to a level. If the conversion fails, then this method returns {@link #DEBUG}.
+ */
+ public static Level toLevel(int val) {
+ return toLevel(val, Level.DEBUG);
+ }
+
+ /**
+ * Convert an integer passed as argument to a level. If the conversion fails, then this method returns the specified default.
+ */
+ public static Level toLevel(int val, Level defaultLevel) {
+ switch (val) {
+ case ALL_INT:
+ return ALL;
+ case DEBUG_INT:
+ return Level.DEBUG;
+ case INFO_INT:
+ return Level.INFO;
+ case WARN_INT:
+ return Level.WARN;
+ case ERROR_INT:
+ return Level.ERROR;
+ case FATAL_INT:
+ return Level.FATAL;
+ case OFF_INT:
+ return OFF;
+ case TRACE_INT:
+ return Level.TRACE;
+ default:
+ return defaultLevel;
+ }
+ }
+
+ /**
+ * Convert the string passed as argument to a level. If the conversion fails, then this method returns the value of
+ * <code>defaultLevel</code>.
+ */
+ public static Level toLevel(String sArg, Level defaultLevel) {
+ if (sArg == null) {
+ return defaultLevel;
+ }
+ String s = sArg.toUpperCase();
+
+ if (s.equals(ALL_NAME)) {
+ return Level.ALL;
+ }
+ if (s.equals(DEBUG_NAME)) {
+ return Level.DEBUG;
+ }
+ if (s.equals(INFO_NAME)) {
+ return Level.INFO;
+ }
+ if (s.equals(WARN_NAME)) {
+ return Level.WARN;
+ }
+ if (s.equals(ERROR_NAME)) {
+ return Level.ERROR;
+ }
+ if (s.equals(FATAL_NAME)) {
+ return Level.FATAL;
+ }
+ if (s.equals(OFF_NAME)) {
+ return Level.OFF;
+ }
+ if (s.equals(TRACE_NAME)) {
+ return Level.TRACE;
+ }
+ //
+ // For Turkish i problem, see bug 40937
+ //
+ if (s.equals("\u0130NFO")) {
+ return Level.INFO;
+ }
+ return defaultLevel;
+ }
+
+ /**
+ * Custom deserialization of Level.
+ *
+ * @param s
+ * serialization stream.
+ * @throws IOException
+ * if IO exception.
+ * @throws ClassNotFoundException
+ * if class not found.
+ */
+ private void readObject(final ObjectInputStream s) throws IOException, ClassNotFoundException {
+ s.defaultReadObject();
+ level = s.readInt();
+ syslogEquivalent = s.readInt();
+ levelStr = s.readUTF();
+ if (levelStr == null) {
+ levelStr = "";
+ }
+ }
+
+ /**
+ * Serialize level.
+ *
+ * @param s
+ * serialization stream.
+ * @throws IOException
+ * if exception during serialization.
+ */
+ private void writeObject(final ObjectOutputStream s) throws IOException {
+ s.defaultWriteObject();
+ s.writeInt(level);
+ s.writeInt(syslogEquivalent);
+ s.writeUTF(levelStr);
+ }
+
+ /**
+ * Resolved deserialized level to one of the stock instances. May be overriden in classes derived from Level.
+ *
+ * @return resolved object.
+ * @throws ObjectStreamException
+ * if exception during resolution.
+ */
+ private Object readResolve() throws ObjectStreamException {
+ //
+ // if the deserizalized object is exactly an instance of Level
+ //
+ if (getClass() == Level.class) {
+ return toLevel(level);
+ }
+ //
+ // extension of Level can't substitute stock item
+ //
+ return this;
+ }
+
+}
git://source.jalview.org / jalview.git / blobdiff