/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache license, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the license for the specific language governing permissions and
 * limitations under the license.
 */
package org.apache.logging.log4j.core;

import java.io.File;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.ConfigurationFactory;
import org.apache.logging.log4j.status.StatusLogger;
import org.apache.logging.log4j.test.appender.ListAppender;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 *
 */
public class FileConfigTest {

    private static final String CONFIG = "target/test-classes/log4j-test2.xml";
    private static Configuration config;
    private static ListAppender app;
    private static LoggerContext ctx;

    private final org.apache.logging.log4j.Logger logger = LogManager.getLogger("LoggerTest");

    @BeforeClass
    public static void setupClass() {
        System.setProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY, CONFIG);
        ctx = (LoggerContext) LogManager.getContext(false);
    }

    @AfterClass
    public static void cleanupClass() {
        System.clearProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY);
        ctx.reconfigure();
        StatusLogger.getLogger().reset();
    }

    @Before
    public void before() {
        config = ctx.getConfiguration();
        for (final Map.Entry<String, Appender> entry : config.getAppenders().entrySet()) {
            if (entry.getKey().equals("List")) {
                app = (ListAppender) entry.getValue();
                break;
            }
        }
        assertNotNull("No Appender", app);
        app.clear();
    }

    @Test
    public void testReconfiguration() throws Exception {
        final int MONITOR_INTERVAL_SECONDS = 1;
        final File file = new File(CONFIG);
        final long orig = file.lastModified();
        final long newTime = orig + 10000;
        file.setLastModified(newTime);
        Thread.sleep((MONITOR_INTERVAL_SECONDS + 1) * 1000);
        for (int i = 0; i < 17; ++i) {
            logger.debug("Reconfigure");
        }
        Thread.sleep(100);
        final Configuration cfg = ctx.getConfiguration();
        assertNotNull("No configuration", cfg);
        assertTrue("Reconfiguration failed", cfg != config);
    }
}


@@ -859,74 +859,8 @@
 le;%0A
-import java.util.Map;%0A%0Aimport org.apache.logging.log4j.LogManager;
 %0Aimp
@@ -951,93 +951,34 @@
 g4j.
-core.config.ConfigurationFactory;%0Aimport org.apache.logging.log4j.status.StatusLogger
+junit.InitialLoggerContext
 ;%0Aim
@@ -1039,37 +1039,8 @@
 er;%0A
-import org.junit.AfterClass;%0A
 impo
@@ -1077,27 +1077,25 @@
 g.junit.
-Before
 Class
+Rule
 ;%0Aimport
@@ -1292,86 +1292,60 @@
 tic 
-Configuration config;%0A    private static ListAppender app;%0A    private
+ListAppender app;%0A%0A    @ClassRule%0A    public
  static 
 Logg
@@ -1340,16 +1340,23 @@
  static 
+Initial
 LoggerCo
@@ -1362,18 +1362,57 @@
 ontext c
-tx
+ontext = new InitialLoggerContext(CONFIG)
 ;%0A%0A    p
@@ -1465,26 +1465,23 @@
 ogger = 
-LogManager
+context
 .getLogg
@@ -1510,21 +1510,16 @@
  @Before
-Class
 %0A    pub
@@ -1526,762 +1526,87 @@
 lic 
-static void setupClass() %7B%0A        System.setProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY, CONFIG);%0A        ctx = (LoggerContext) LogManager.getContext(false);%0A    %7D%0A%0A    @AfterClass%0A    public static void cleanupClass() %7B%0A        System.clearProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY);%0A        ctx.reconfigure();%0A        StatusLogger.getLogger().reset();%0A    %7D%0A%0A    @Before%0A    public void before() %7B%0A        config = ctx.getConfiguration();%0A        for (final Map.Entry%3CString, Appender%3E entry : config.getAppenders().entrySet()) %7B%0A            if (entry.getKey().equals(%22List%22)) %7B%0A                app = (ListAppender) entry.getValue();%0A                break;%0A            %7D%0A        %7D%0A        assertNotNull(%22No Appender%22, app
+void before() %7B%0A        app = (ListAppender) context.getRequiredAppender(%22List%22
 );%0A 
@@ -1699,16 +1699,84 @@
 ption %7B%0A
+        final Configuration oldConfig = context.getConfiguration();%0A
         
@@ -2198,17 +2198,27 @@
 ion 
-cfg = ctx
+newConfig = context
 .get
@@ -2255,56 +2255,11 @@
 tNot
-Null(%22No configuration%22, cfg);%0A        assertTru
+Sam
 e(%22R
@@ -2286,16 +2286,23 @@
 d%22, 
-cfg != c
+newConfig, oldC
 onfi

Refactor test to use InitialLoggerContext rule.