    001/**
    002 * Copyright (c) 2004-2016 QOS.ch
    003 * All rights reserved.
    004 *
    005 * Permission is hereby granted, free  of charge, to any person obtaining
    006 * a  copy  of this  software  and  associated  documentation files  (the
    007 * "Software"), to  deal in  the Software without  restriction, including
    008 * without limitation  the rights to  use, copy, modify,  merge, publish,
    009 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
    010 * permit persons to whom the Software  is furnished to do so, subject to
    011 * the following conditions:
    012 *
    013 * The  above  copyright  notice  and  this permission  notice  shall  be
    014 * included in all copies or substantial portions of the Software.
    015 *
    016 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
    017 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
    018 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
    019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    020 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    021 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
    022 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    023 *
    024 */
    025package org.slf4j.helpers;
    026
    027import java.io.PrintStream;
    028import java.util.ArrayList;
    029import java.util.Collections;
    030import java.util.List;
    031
    032import org.junit.After;
    033import org.junit.Before;
    034import org.slf4j.LoggerFactoryFriend;
    035import org.slf4j.impl.SimpleLogger;
    036
    037public class SimpleLoggerMultithreadedInitializationTest extends MultithreadedInitializationTest {
    038    // final static int THREAD_COUNT = 4 + Runtime.getRuntime().availableProcessors() * 2;
    039    // private final List<Logger> createdLoggers = Collections.synchronizedList(new ArrayList<Logger>());
    040    // private final AtomicLong eventCount = new AtomicLong(0);
    041    //
    042    // private final CyclicBarrier barrier = new CyclicBarrier(THREAD_COUNT + 1);
    043    //
    044    // final int diff = new Random().nextInt(10000);
    045    static int NUM_LINES_IN_SLF4J_REPLAY_WARNING = 3;
    046    private final PrintStream oldErr = System.err;
    047    final String loggerName = this.getClass().getName();
    048    StringPrintStream sps = new StringPrintStream(oldErr, true);
    049
    050    @Before
    051    public void setup() {
    052        System.out.println("THREAD_COUNT=" + THREAD_COUNT);
    053        System.setErr(sps);
    054        System.setProperty(SimpleLogger.LOG_FILE_KEY, "System.err");
    055        LoggerFactoryFriend.reset();
    056    }
    057
    058    @After
    059    public void tearDown() throws Exception {
    060        LoggerFactoryFriend.reset();
    061        System.clearProperty(SimpleLogger.LOG_FILE_KEY);
    062        System.setErr(oldErr);
    063    }
    064
    065    @Override
    066    protected long getRecordedEventCount() {
    067        return sps.stringList.size();
    068    };
    069
    070    @Override
    071    protected int extraLogEvents() {
    072        return NUM_LINES_IN_SLF4J_REPLAY_WARNING;
    073    }
    074
    075    static class StringPrintStream extends PrintStream {
    076
    077        public static final String LINE_SEP = System.getProperty("line.separator");
    078        PrintStream other;
    079        boolean duplicate = false;
    080
    081        List<String> stringList = Collections.synchronizedList(new ArrayList<String>());
    082
    083        public StringPrintStream(PrintStream ps, boolean duplicate) {
    084            super(ps);
    085            other = ps;
    086            this.duplicate = duplicate;
    087        }
    088
    089        public StringPrintStream(PrintStream ps) {
    090            this(ps, false);
    091        }
    092
    093        public void print(String s) {
    094            if (duplicate)
    095                other.print(s);
    096            stringList.add(s);
    097        }
    098
    099        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}