Examples of org.apache.commons.configuration.reloading.FileAlwaysReloadingStrategy

Package org.apache.commons.configuration.reloading

Examples of org.apache.commons.configuration.reloading.FileAlwaysReloadingStrategy

org.apache.commons.configuration.reloading.FileAlwaysReloadingStrategy
A specialized reloading strategy for files that will always report a change of the monitored file. Thus it is well suited for testing reloading operations on file-based configurations. @version $Id: FileAlwaysReloadingStrategy.java 483661 2006-12-07 20:58:09Z oheger $

    {
        config.setForceReloadCheck(true);
        File testXmlFile = writeReloadFile(RELOAD_XML_NAME, RELOAD_XML_CONTENT, 0);
        File testPropsFile = writeReloadFile(RELOAD_PROPS_NAME, RELOAD_PROPS_CONTENT, 0);
        XMLConfiguration c1 = new XMLConfiguration(testXmlFile);
        c1.setReloadingStrategy(new FileAlwaysReloadingStrategy());
        PropertiesConfiguration c2 = new PropertiesConfiguration(testPropsFile);
        c2.setThrowExceptionOnMissing(true);
        c2.setReloadingStrategy(new FileAlwaysReloadingStrategy());
        config.addConfiguration(c1);
        config.addConfiguration(c2);
        assertEquals("Wrong xml reload value", 0, config.getInt("xmlReload"));
        assertEquals("Wrong props reload value", 0, config
                .getInt("propsReload"));

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    {
        config.setForceReloadCheck(true);
        File testXmlFile = writeReloadFile(RELOAD_XML_NAME, RELOAD_XML_CONTENT,
                0);
        XMLConfiguration c1 = new XMLConfiguration(testXmlFile);
        c1.setReloadingStrategy(new FileAlwaysReloadingStrategy());
        final String prefix = "reloadCheck";
        config.addConfiguration(c1, CHILD1, prefix);
        SubnodeConfiguration sub = config.configurationAt(prefix, true);
        writeReloadFile(RELOAD_XML_NAME, RELOAD_XML_CONTENT, 1);
        assertEquals("Reload not detected", 1, sub.getInt("xmlReload"));

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    public void testDeadlockWithReload() throws ConfigurationException,
            InterruptedException
    {
        final PropertiesConfiguration child = new PropertiesConfiguration(
                "test.properties");
        child.setReloadingStrategy(new FileAlwaysReloadingStrategy());
        config.addConfiguration(child);
        final int count = 1000;


        class ReloadThread extends Thread
        {

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        xmlConf.setFile(TEST_FILE);
        xmlConf.save();
        config = xmlConf.configurationAt("tables.table(1)", supportReload);
        assertEquals("Wrong table name", TABLE_NAMES[1], config
                .getString("name"));
        xmlConf.setReloadingStrategy(new FileAlwaysReloadingStrategy());
        // Now change the configuration file
        XMLConfiguration confUpdate = new XMLConfiguration(TEST_FILE);
        confUpdate.setProperty("tables.table(1).name", NEW_TABLE_NAME);
        confUpdate.setProperty("tables.table(1).fields.field(0).name",
                "newField");

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            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>");

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            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)

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    @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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    @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];

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    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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        ConfigurationErrorListenerImpl l = new ConfigurationErrorListenerImpl();
        PropertiesConfiguration config = new PropertiesConfiguration(
                RESOURCE_NAME);
        config.clearErrorListeners();
        config.addErrorListener(l);
        config.setReloadingStrategy(new FileAlwaysReloadingStrategy());
        config.getString("test");
        config.setFileName("Not existing file");
        config.getString("test");
        l.verify(AbstractFileConfiguration.EVENT_RELOAD, null, null);
        assertNotNull("Exception is not set", l.getLastEvent().getCause());

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Related Classes of org.apache.commons.configuration.reloading.FileAlwaysReloadingStrategy

org.apache.commons.configuration.TestCombinedConfiguration

org.apache.commons.configuration.TestCompositeConfiguration

org.apache.commons.configuration.TestFileConfiguration

org.apache.commons.configuration.TestSubnodeConfiguration

org.apache.commons.configuration.TestXMLConfiguration

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