Examples of FileChangedReloadingStrategy

org.apache.commons.configuration.reloading.FileChangedReloadingStrategy

A reloading strategy that will reload the configuration every time its underlying file is changed.

This reloading strategy does not actively monitor a configuration file, but is triggered by its associated configuration whenever properties are accessed. It then checks the configuration file's last modification date and causes a reload if this has changed.

To avoid permanent disc access on successive property lookups a refresh delay can be specified. This has the effect that the configuration file's last modification date is only checked once in this delay period. The default value for this refresh delay is 5 seconds.

This strategy only works with FileConfiguration instances.
@author Emmanuel Bourg @version $Revision: 606798 $, $Date: 2007-12-25 20:05:58 +0100 (Di, 25 Dez 2007) $ @since 1.1

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

      }
    }
    log.info("Reading UDDI Client properties file " + xmlConfig.getBasePath());
    long refreshDelay = xmlConfig.getLong(Property.UDDI_RELOAD_DELAY, 1000l);
    log.debug("Setting refreshDelay to " + refreshDelay);
    FileChangedReloadingStrategy fileChangedReloadingStrategy = new FileChangedReloadingStrategy();
    fileChangedReloadingStrategy.setRefreshDelay(refreshDelay);
    xmlConfig.setReloadingStrategy(fileChangedReloadingStrategy);
    compositeConfig.addConfiguration(xmlConfig);
    //Making the new configuration globally accessible.
    config = compositeConfig;
    loadManager();

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

     * implementation accesses methods of the configuration that in turn cause a reload.
     */
    public void testReentrantReload()
    {
        conf.setProperty("shouldReload", Boolean.FALSE);
        conf.setReloadingStrategy(new FileChangedReloadingStrategy()
        {
            public boolean reloadingRequired()
            {
                return configuration.getBoolean("shouldReload");
            }

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

     * Rigourous Test :-)
     */
    public void testMultiConfiguration()
    {
        //set up a reloading strategy
        FileChangedReloadingStrategy strategy = new FileChangedReloadingStrategy();
        strategy.setRefreshDelay(10000);


        PatternSubtreeConfigurationWrapper config = new PatternSubtreeConfigurationWrapper(this.conf, PATTERN);
        config.setReloadingStrategy(strategy);
        config.setExpressionEngine(new XPathExpressionEngine());

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

            out.close();
            out = null;


            PropertiesConfiguration config = new PropertiesConfiguration(
                    configFile);
            config.setReloadingStrategy(new FileChangedReloadingStrategy());
            config.setAutoSave(true);


            assertEquals("one", config.getProperty("a"));
            config.setProperty("b", "two");
            assertEquals("one", config.getProperty("a"));

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

     * Rigourous Test :-)
     */
    public void testMultiConfiguration()
    {
        //set up a reloading strategy
        FileChangedReloadingStrategy strategy = new FileChangedReloadingStrategy();
        strategy.setRefreshDelay(10000);


        MultiFileHierarchicalConfiguration config = new MultiFileHierarchicalConfiguration(PATTERN1);
        config.setReloadingStrategy(strategy);


        System.setProperty("Id", "1001");

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

     */
    @Test
    public void testReentrantReload()
    {
        conf.setProperty("shouldReload", Boolean.FALSE);
        conf.setReloadingStrategy(new FileChangedReloadingStrategy()
        {
            @Override
            public boolean reloadingRequired()
            {
                return configuration.getBoolean("shouldReload");

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

            out = new PrintWriter(new FileWriter(testSaveConf));
            out.println("<?xml version=\"1.0\"?><config><test>1</test></config>");
            out.close();
            out = null;
            conf.setFile(testSaveConf);
            FileChangedReloadingStrategy strategy = new FileChangedReloadingStrategy();
            strategy.setRefreshDelay(100);
            conf.setReloadingStrategy(strategy);
            assertEquals(strategy, conf.getReloadingStrategy());
            conf.load();
            assertEquals(1, conf.getInt("test"));
            Thread.sleep(1000);

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

            out.close();
            out = null;


            PropertiesConfiguration config = new PropertiesConfiguration(
                    configFile);
            config.setReloadingStrategy(new FileChangedReloadingStrategy());
            config.setAutoSave(true);


            assertEquals("one", config.getProperty("a"));
            config.setProperty("b", "two");
            assertEquals("one", config.getProperty("a"));

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

     * implementation accesses methods of the configuration that in turn cause a reload.
     */
    public void testReentrantReload()
    {
        conf.setProperty("shouldReload", Boolean.FALSE);
        conf.setReloadingStrategy(new FileChangedReloadingStrategy()
        {
            public boolean reloadingRequired()
            {
                return configuration.getBoolean("shouldReload");
            }

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

            out = new PrintWriter(new FileWriter(testSaveConf));
            out.println("<?xml version=\"1.0\"?><config><test>1</test></config>");
            out.close();
            out = null;
            conf.setFile(testSaveConf);
            FileChangedReloadingStrategy strategy = new FileChangedReloadingStrategy();
            strategy.setRefreshDelay(100);
            conf.setReloadingStrategy(strategy);
            assertEquals(strategy, conf.getReloadingStrategy());
            conf.load();
            assertEquals(1, conf.getInt("test"));
            Thread.sleep(1000);

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