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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.logging.slf4j;
    18
    19  import java.util.ArrayList;
    20  import java.util.Iterator;
    21  import java.util.List;
    22
    23  import org.apache.logging.log4j.MarkerManager;
    24  import org.slf4j.IMarkerFactory;
    25  import org.slf4j.Marker;
    26  import org.slf4j.impl.StaticMarkerBinder;
    27
    28  /**
    29   * Log4j/SLF4J {@link org.slf4j.Marker} type bridge.
    30   */
    31  public class Log4jMarker implements Marker {
    32
    33      public static final long serialVersionUID = 1590472L;
    34
    35      private final IMarkerFactory factory = StaticMarkerBinder.SINGLETON.getMarkerFactory();
    36
    37      private final org.apache.logging.log4j.Marker marker;
    38
    39      /**
    40       * Constructs a Log4jMarker using an existing Log4j {@link org.apache.logging.log4j.Marker}.
    41       * @param marker The Log4j Marker upon which to base this Marker.
    42       */
    43      public Log4jMarker(final org.apache.logging.log4j.Marker marker) {
    44          this.marker = marker;
    45      }
    46
    47      public org.apache.logging.log4j.Marker getLog4jMarker() {
    48          return marker;
    49      }
    50
    51      @Override
    52      public void add(final Marker marker) {
    53          final Marker m = factory.getMarker(marker.getName());
    54          this.marker.addParents(((Log4jMarker)m).getLog4jMarker());
    55      }
    56
    57      @Override
    58      public boolean remove(final Marker marker) {
    59          return this.marker.remove(MarkerManager.getMarker(marker.getName()));
    60      }
    61
    62      @Override
    63      public String getName() {
    64          return marker.getName();
    65      }
    66
    67      @Override
    68      public boolean hasReferences() {
    69          return marker.hasParents();
    70      }
    71
    72      @Override
    73      public boolean hasChildren() {
    74          return marker.hasParents();
    75      }
    76
    77      @Override
    78      @SuppressWarnings("rawtypes")
    79      public Iterator iterator() {
    80          final List<Marker> parents = new ArrayList<Marker>();
    81          for (final org.apache.logging.log4j.Marker m : this.marker.getParents()) {
    82              parents.add(factory.getMarker(m.getName()));
    83          }
    84          return parents.iterator();
    85      }
    86
    87      @Override
    88      public boolean contains(final org.slf4j.Marker marker) {
    89          return this.marker.isInstanceOf(marker.getName());
    90      }
    91
    92      @Override
    93      public boolean contains(final String s) {
    94          return this.marker.isInstanceOf(s);
    95      }
    96  }