List of usage examples for org.apache.commons.configuration2.builder ReloadingFileBasedConfigurationBuilder ReloadingFileBasedConfigurationBuilder
public ReloadingFileBasedConfigurationBuilder(final Class<? extends T> resCls)
From source file:org.apache.nifi.lookup.configuration2.CommonsConfigurationLookupService.java
@OnEnabled public void onEnabled(final ConfigurationContext context) throws InitializationException { final String config = context.getProperty(CONFIGURATION_FILE).getValue(); final FileBasedBuilderParameters params = new Parameters().fileBased().setFile(new File(config)); this.builder = new ReloadingFileBasedConfigurationBuilder<>(resultClass).configure(params); builder.addEventListener(ConfigurationBuilderEvent.CONFIGURATION_REQUEST, new EventListener<ConfigurationBuilderEvent>() { @Override//from w ww. ja v a 2 s . c o m public void onEvent(ConfigurationBuilderEvent event) { if (builder.getReloadingController().checkForReloading(null)) { getLogger().debug("Reloading " + config); } } }); try { // Try getting configuration to see if there is any issue, for example wrong file format. // Then throw InitializationException to keep this service in 'Enabling' state. builder.getConfiguration(); } catch (ConfigurationException e) { throw new InitializationException(e); } }