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    1   /**
    2    * Copyright (c) 2004-2016 QOS.ch
    3    * All rights reserved.
    4    *
    5    * Permission is hereby granted, free  of charge, to any person obtaining
    6    * a  copy  of this  software  and  associated  documentation files  (the
    7    * "Software"), to  deal in  the Software without  restriction, including
    8    * without limitation  the rights to  use, copy, modify,  merge, publish,
    9    * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    10   * permit persons to whom the Software  is furnished to do so, subject to
    11   * the following conditions:
    12   *
    13   * The  above  copyright  notice  and  this permission  notice  shall  be
    14   * included in all copies or substantial portions of the Software.
    15   *
    16   * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    17   * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    18   * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    19   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    20   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    21   * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    22   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    23   *
    24   */
    25  package org.slf4j.helpers;
    26
    27  import java.io.PrintStream;
    28  import java.util.ArrayList;
    29  import java.util.Collections;
    30  import java.util.List;
    31
    32  import org.junit.After;
    33  import org.junit.Before;
    34  import org.slf4j.LoggerFactoryFriend;
    35  import org.slf4j.impl.SimpleLogger;
    36
    37  public class SimpleLoggerMultithreadedInitializationTest extends MultithreadedInitializationTest {
    38      // final static int THREAD_COUNT = 4 + Runtime.getRuntime().availableProcessors() * 2;
    39      // private final List<Logger> createdLoggers = Collections.synchronizedList(new ArrayList<Logger>());
    40      // private final AtomicLong eventCount = new AtomicLong(0);
    41      //
    42      // private final CyclicBarrier barrier = new CyclicBarrier(THREAD_COUNT + 1);
    43      //
    44      // final int diff = new Random().nextInt(10000);
    45      static int NUM_LINES_IN_SLF4J_REPLAY_WARNING = 3;
    46      private final PrintStream oldErr = System.err;
    47      final String loggerName = this.getClass().getName();
    48      StringPrintStream sps = new StringPrintStream(oldErr, true);
    49
    50      @Before
    51      public void setup() {
    52          System.out.println("THREAD_COUNT=" + THREAD_COUNT);
    53          System.setErr(sps);
    54          System.setProperty(SimpleLogger.LOG_FILE_KEY, "System.err");
    55          LoggerFactoryFriend.reset();
    56      }
    57
    58      @After
    59      public void tearDown() throws Exception {
    60          LoggerFactoryFriend.reset();
    61          System.clearProperty(SimpleLogger.LOG_FILE_KEY);
    62          System.setErr(oldErr);
    63      }
    64
    65      @Override
    66      protected long getRecordedEventCount() {
    67          return sps.stringList.size();
    68      };
    69
    70      @Override
    71      protected int extraLogEvents() {
    72          return NUM_LINES_IN_SLF4J_REPLAY_WARNING;
    73      }
    74
    75      static class StringPrintStream extends PrintStream {
    76
    77          public static final String LINE_SEP = System.getProperty("line.separator");
    78          PrintStream other;
    79          boolean duplicate = false;
    80
    81          List<String> stringList = Collections.synchronizedList(new ArrayList<String>());
    82
    83          public StringPrintStream(PrintStream ps, boolean duplicate) {
    84              super(ps);
    85              other = ps;
    86              this.duplicate = duplicate;
    87          }
    88
    89          public StringPrintStream(PrintStream ps) {
    90              this(ps, false);
    91          }
    92
    93          public void print(String s) {
    94              if (duplicate)
    95                  other.print(s);
    96              stringList.add(s);
    97          }
    98
    99          public void println(String s) {
    100             if (duplicate)
    101                 other.println(s);
    102             stringList.add(s);
    103         }
    104
    105         public void println(Object o) {
    106             if (duplicate)
    107                 other.println(o);
    108             stringList.add(o.toString());
    109         }
    110     }
    111
    112 }