+/*
+ * 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.
+ */
+
+package org.apache.log4j.pattern;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.spi.LoggingEvent;
+
+
+/**
+ * Return the event's level in a StringBuffer.
+ *
+ * @author Ceki Gülcü
+ */
+public final class LevelPatternConverter extends LoggingEventPatternConverter {
+
+ /**
+ * Integer severity for Level.TRACE.
+ */
+ private static final int TRACE_INT = 5000;
+ /**
+ * Singleton.
+ */
+ private static final LevelPatternConverter INSTANCE =
+ new LevelPatternConverter();
+
+ /**
+ * Private constructor.
+ */
+ private LevelPatternConverter() {
+ super("Level", "level");
+ }
+
+ /**
+ * Obtains an instance of pattern converter.
+ * @param options options, may be null.
+ * @return instance of pattern converter.
+ */
+ public static LevelPatternConverter newInstance(
+ final String[] options) {
+ return INSTANCE;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public void format(final LoggingEvent event, final StringBuffer output) {
+ output.append(event.getLevel().toString());
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public String getStyleClass(Object e) {
+ if (e instanceof LoggingEvent) {
+ int lint = ((LoggingEvent) e).getLevel().toInt();
+
+ switch (lint) {
+ case TRACE_INT:
+ return "level trace";
+
+ case Level.DEBUG_INT:
+ return "level debug";
+
+ case Level.INFO_INT:
+ return "level info";
+
+ case Level.WARN_INT:
+ return "level warn";
+
+ case Level.ERROR_INT:
+ return "level error";
+
+ case Level.FATAL_INT:
+ return "level fatal";
+
+ default:
+ return "level " + ((LoggingEvent) e).getLevel().toString();
+ }
+ }
+
+ return "level";
+ }
+}