Example usage for org.apache.commons.configuration.reloading FileAlwaysReloadingStrategy FileAlwaysReloadingStrategy

Introduction

In this page you can find the example usage for org.apache.commons.configuration.reloading FileAlwaysReloadingStrategy FileAlwaysReloadingStrategy.

Prototype

FileAlwaysReloadingStrategy

Source Link

Usage

From source file:io.datalayer.conf.XmlConfigurationTest.java

/**
 * Tests collaboration between XMLConfiguration and a reloading strategy.
 *///from ww w.j a va  2 s .  c  om
@Test
public void testReloading() throws Exception {
    assertNotNull(conf.getReloadingStrategy());
    assertTrue(conf.getReloadingStrategy() instanceof InvariantReloadingStrategy);
    PrintWriter out = null;

    try {
        out = new PrintWriter(new FileWriter(testSaveConf));
        out.println("<?xml version=\"1.0\"?><config><test>1</test></config>");
        out.close();
        out = null;
        conf.setFile(testSaveConf);
        FileAlwaysReloadingStrategy strategy = new FileAlwaysReloadingStrategy();
        strategy.setRefreshDelay(100);
        conf.setReloadingStrategy(strategy);
        assertEquals(strategy, conf.getReloadingStrategy());
        assertEquals("Wrong file monitored", testSaveConf.getAbsolutePath(),
                strategy.getMonitoredFile().getAbsolutePath());
        conf.load();
        assertEquals(1, conf.getInt("test"));

        out = new PrintWriter(new FileWriter(testSaveConf));
        out.println("<?xml version=\"1.0\"?><config><test>2</test></config>");
        out.close();
        out = null;

        int value = conf.getInt("test");
        assertEquals("No reloading performed", 2, value);
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

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From source file:io.datalayer.conf.XmlConfigurationTest.java

@Test
public void testReloadingOOM() throws Exception {
    assertNotNull(conf.getReloadingStrategy());
    assertTrue(conf.getReloadingStrategy() instanceof InvariantReloadingStrategy);
    PrintWriter out = null;//from   w  w  w . j  a v a  2 s .  co  m

    try {
        out = new PrintWriter(new FileWriter(testSaveConf));
        out.println("<?xml version=\"1.0\"?><config><test>1</test></config>");
        out.close();
        out = null;
        conf.setFile(testSaveConf);
        FileAlwaysReloadingStrategy strategy = new FileAlwaysReloadingStrategy();
        strategy.setRefreshDelay(100);
        conf.setReloadingStrategy(strategy);
        conf.load();
        assertEquals(1, conf.getInt("test"));

        for (int i = 1; i < LOOP_COUNT; ++i) {
            assertEquals(1, conf.getInt("test"));
        }
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

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From source file:io.datalayer.conf.XmlConfigurationTest.java

/**
 * Tests a combination of auto save = true and an associated reloading
 * strategy.//from  w w w .  jav  a 2 s.c om
 */
@Test
public void testAutoSaveWithReloadingStrategy() throws ConfigurationException {
    conf.setFile(testSaveConf);
    conf.save();
    conf.setReloadingStrategy(new FileAlwaysReloadingStrategy());
    conf.setAutoSave(true);
    assertEquals("Value not found", "value", conf.getProperty("element"));
}

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From source file:io.datalayer.conf.XmlConfigurationTest.java

@Test
public void testConcurrentGetAndReload() throws Exception {
    // final FileConfiguration config = new
    // PropertiesConfiguration("test.properties");
    final FileConfiguration config = new XMLConfiguration("test.xml");
    config.setReloadingStrategy(new FileAlwaysReloadingStrategy());

    assertTrue("Property not found", config.getProperty("test.short") != null);

    Thread testThreads[] = new Thread[THREAD_COUNT];

    for (int i = 0; i < testThreads.length; ++i) {
        testThreads[i] = new ReloadThread(config);
        testThreads[i].start();// ww w  .ja  va2 s.com
    }

    for (int i = 0; i < LOOP_COUNT; i++) {
        assertTrue("Property not found", config.getProperty("test.short") != null);
    }

    for (int i = 0; i < testThreads.length; ++i) {
        testThreads[i].join();
    }
}

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From source file:io.datalayer.conf.XmlConfigurationTest.java

/**
 * Prepares a configuration object for testing a reload operation.
 * /*  ww  w  . j  a va2s.co  m*/
 * @return the initialized configuration
 * @throws ConfigurationException
 *             if an error occurs
 */
private XMLConfiguration setUpReloadTest() throws ConfigurationException {
    removeTestFile();
    conf.save(testSaveConf);
    XMLConfiguration c = new XMLConfiguration(testSaveConf);
    c.setReloadingStrategy(new FileAlwaysReloadingStrategy());
    conf.setProperty("test(0).entity", "newValue");
    conf.save(testSaveConf);
    return c;
}

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