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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements. See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache license, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License. You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the license for the specific language governing permissions and
    15   * limitations under the license.
    16   */
    17  package org.apache.log4j;
    18
    19  import org.apache.log4j.spi.LoggingEvent;
    20  import org.apache.logging.log4j.util.Strings;
    21
    22  /**
    23   *
    24   */
    25  public class PatternLayout extends Layout {
    26
    27      public PatternLayout(final String pattern) {
    28
    29      }
    30
    31      @Override
    32      public String format(final LoggingEvent event) {
    33          return Strings.EMPTY;
    34      }
    35
    36      @Override
    37      public boolean ignoresThrowable() {
    38          return true;
    39      }
    40  }