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diff --git a/srcjar_unused/org/apache/log4j/pattern/PatternConverter.java b/srcjar_unused/org/apache/log4j/pattern/PatternConverter.java
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+++ b/srcjar_unused/org/apache/log4j/pattern/PatternConverter.java
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+/*
+ * 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;
+
+
+/**
+
+   <p>PatternConverter is an abstract class that provides the
+   formatting functionality that derived classes need.
+
+   <p>Conversion specifiers in a conversion patterns are parsed to
+   individual PatternConverters. Each of which is responsible for
+   converting an object in a converter specific manner.
+
+   @author <a href="mailto:cakalijp@Maritz.com">James P. Cakalic</a>
+   @author Ceki G&uuml;lc&uuml;
+   @author Chris Nokes
+   @author Curt Arnold
+
+ */
+public abstract class PatternConverter {
+  /**
+   * Converter name.
+   */
+  private final String name;
+
+  /**
+   * Converter style name.
+   */
+  private final String style;
+
+  /**
+   * Create a new pattern converter.
+   * @param name name for pattern converter.
+   * @param style CSS style for formatted output.
+   */
+  protected PatternConverter(final String name, final String style) {
+    this.name = name;
+    this.style = style;
+  }
+
+  /**
+   * Formats an object into a string buffer.
+   * @param obj event to format, may not be null.
+   * @param toAppendTo string buffer to which the formatted event will be appended.  May not be null.
+   */
+  public abstract void format(final Object obj, final StringBuffer toAppendTo);
+
+  /**
+   * This method returns the name of the conversion pattern.
+   *
+   * The name can be useful to certain Layouts such as HTMLLayout.
+   *
+   * @return        the name of the conversion pattern
+   */
+  public final String getName() {
+    return name;
+  }
+
+  /**
+   * This method returns the CSS style class that should be applied to
+   * the LoggingEvent passed as parameter, which can be null.
+   *
+   * This information is currently used only by HTMLLayout.
+   *
+   * @param e null values are accepted
+   * @return  the name of the conversion pattern
+   */
+  public String getStyleClass(Object e) {
+    return style;
+  }
+}