JAL-3026 srcjar files for VARNA and log4j

[jalview.git] / srcjar / org / apache / log4j / pattern / LoggerPatternConverter.java

diff --git a/srcjar/org/apache/log4j/pattern/LoggerPatternConverter.java b/srcjar/org/apache/log4j/pattern/LoggerPatternConverter.java
new file mode 100644 (file)
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+++ b/srcjar/org/apache/log4j/pattern/LoggerPatternConverter.java
@@ -0,0 +1,66 @@
+/*
+ * 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.spi.LoggingEvent;
+
+
+/**
+ * Formats a logger name.
+ *
+ * @author Ceki Gülcü
+ *
+ */
+public final class LoggerPatternConverter extends NamePatternConverter {
+  /**
+   * Singleton.
+   */
+  private static final LoggerPatternConverter INSTANCE =
+    new LoggerPatternConverter(null);
+
+  /**
+   * Private constructor.
+   * @param options options, may be null.
+   */
+  private LoggerPatternConverter(final String[] options) {
+    super("Logger", "logger", options);
+  }
+
+  /**
+   * Obtains an instance of pattern converter.
+   * @param options options, may be null.
+   * @return instance of pattern converter.
+   */
+  public static LoggerPatternConverter newInstance(
+    final String[] options) {
+    if ((options == null) || (options.length == 0)) {
+      return INSTANCE;
+    }
+
+    return new LoggerPatternConverter(options);
+  }
+
+  /**
+   * {@inheritDoc}
+   */
+  public void format(final LoggingEvent event, final StringBuffer toAppendTo) {
+    final int initialLength = toAppendTo.length();
+    toAppendTo.append(event.getLoggerName());
+    abbreviate(initialLength, toAppendTo);
+  }
+}