VectorAppender xref

    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
    18  package org.apache.log4j;
    19
    20  import java.util.Vector;
    21  import org.apache.log4j.spi.LoggingEvent;
    22
    23  /**
    24     An appender that appends logging events to a vector.
    25     @author Ceki  G&uuml;lc&uuml;
    26  */
    27  public class VectorAppender extends AppenderSkeleton {
    28
    29    public Vector vector;
    30
    31    public VectorAppender() {
    32      vector = new Vector();
    33    }
    34
    35    /**
    36       Does nothing.
    37    */
    38    public void activateOptions() {
    39    }
    40
    41
    42    /**
    43       This method is called by the {@link AppenderSkeleton#doAppend}
    44       method.
    45
    46    */
    47    public void append(LoggingEvent event) {
    48      //System.out.println("---Vector appender called with message ["+event.getRenderedMessage()+"].");
    49      //System.out.flush();
    50      try {
    51        Thread.sleep(100);
    52      } catch(Exception e) {
    53      }
    54      vector.addElement(event);
    55     }
    56
    57    public Vector getVector() {
    58      return vector;
    59    }
    60
    61    public synchronized void close() {
    62      if(this.closed)
    63        return;
    64      this.closed = true;
    65    }
    66
    67
    68    public boolean isClosed() {
    69      return closed;
    70    }
    71
    72    public boolean requiresLayout() {
    73      return false;
    74    }
    75  }