com.streamsets.datacollector.main.TestLogConfigurator.java Source code

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Here is the source code for com.streamsets.datacollector.main.TestLogConfigurator.java

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/**
 * Copyright 2015 StreamSets Inc.
 *
 * Licensed under 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 com.streamsets.datacollector.main;

import org.apache.commons.io.IOUtils;
import org.apache.log4j.helpers.FileWatchdog;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;

import com.streamsets.datacollector.main.LogConfigurator;
import com.streamsets.datacollector.main.RuntimeInfo;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.util.UUID;

public class TestLogConfigurator {

    @Before
    public void setUp() throws Exception {
        cleanUp();
    }

    @After
    public void cleanUp() throws Exception {
        System.getProperties().remove("log4j.configuration");
        System.getProperties().remove("log4j.defaultInitOverride");
        for (Thread thread : Thread.getAllStackTraces().keySet()) {
            if (thread instanceof FileWatchdog) {
                Field interrupted = ((Class) thread.getClass().getGenericSuperclass())
                        .getDeclaredField("interrupted");
                interrupted.setAccessible(true);
                interrupted.set(thread, true);
                thread.interrupt();
            }
        }
    }

    @Test
    public void testExternalLog4jConfig() {
        System.setProperty("log4j.configuration", "foo");
        RuntimeInfo runtimeInfo = Mockito.mock(RuntimeInfo.class);
        new LogConfigurator(runtimeInfo).configure();
        Mockito.verify(runtimeInfo, Mockito.times(0)).getConfigDir();
        Mockito.verify(runtimeInfo, Mockito.times(0))
                .setAttribute(Mockito.eq(RuntimeInfo.LOG4J_CONFIGURATION_URL_ATTR), Mockito.any());
    }

    @Test
    public void testClasspathLog4jConfig() {
        RuntimeInfo runtimeInfo = Mockito.mock(RuntimeInfo.class);
        File configDir = new File("target", UUID.randomUUID().toString());
        Assert.assertTrue(configDir.mkdirs());
        Mockito.when(runtimeInfo.getConfigDir()).thenReturn(configDir.getAbsolutePath());
        Mockito.when(runtimeInfo.getLog4jPropertiesFileName()).thenReturn("log4j.properties");
        new LogConfigurator(runtimeInfo).configure();
        Mockito.verify(runtimeInfo, Mockito.times(1)).getConfigDir();
        for (Thread thread : Thread.getAllStackTraces().keySet()) {
            Assert.assertFalse(thread instanceof FileWatchdog);
        }
        Mockito.verify(runtimeInfo, Mockito.times(1))
                .setAttribute(Mockito.eq(RuntimeInfo.LOG4J_CONFIGURATION_URL_ATTR), Mockito.any());
    }

    @Test
    public void testConfigDirLog4jConfig() throws IOException {
        RuntimeInfo runtimeInfo = Mockito.mock(RuntimeInfo.class);
        File configDir = new File("target", UUID.randomUUID().toString());
        Assert.assertTrue(configDir.mkdirs());
        InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("log4j.properties");
        OutputStream os = new FileOutputStream(new File(configDir, "log4j.properties"));
        IOUtils.copy(is, os);
        is.close();
        os.close();
        Mockito.when(runtimeInfo.getConfigDir()).thenReturn(configDir.getAbsolutePath());
        Mockito.when(runtimeInfo.getLog4jPropertiesFileName()).thenReturn("log4j.properties");
        new LogConfigurator(runtimeInfo).configure();
        Mockito.verify(runtimeInfo, Mockito.times(1)).getConfigDir();
        boolean foundFileWatcher = false;
        for (Thread thread : Thread.getAllStackTraces().keySet()) {
            foundFileWatcher |= (thread instanceof FileWatchdog);
        }
        Assert.assertTrue(foundFileWatcher);
        Mockito.verify(runtimeInfo, Mockito.times(1))
                .setAttribute(Mockito.eq(RuntimeInfo.LOG4J_CONFIGURATION_URL_ATTR), Mockito.any());
    }
}