Example usage for org.apache.commons.configuration.event ConfigurationListener configurationChanged

Introduction

In this page you can find the example usage for org.apache.commons.configuration.event ConfigurationListener configurationChanged.

Prototype

void configurationChanged(ConfigurationEvent event);

Source Link

Document

Notifies this listener about a manipulation on a monitored configuration object.

Usage

From source file:com.netflix.config.ConcurrentMapConfiguration.java

/**
 * Creates an event and calls {@link ConfigurationListener#configurationChanged(ConfigurationEvent)}
 * for all listeners while catching Throwable.
 *///from   w w  w .  ja v a  2  s .  c  om
@Override
protected void fireEvent(int type, String propName, Object propValue, boolean beforeUpdate) {
    if (listeners == null || listeners.size() == 0) {
        return;
    }
    ConfigurationEvent event = createEvent(type, propName, propValue, beforeUpdate);
    for (ConfigurationListener l : listeners) {
        try {
            l.configurationChanged(event);
        } catch (ValidationException e) {
            if (beforeUpdate) {
                throw e;
            } else {
                logger.error("Unexpected exception", e);
            }
        } catch (Throwable e) {
            logger.error("Error firing configuration event", e);
        }
    }
}

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From source file:com.kixeye.chassis.support.logging.LoggingConfiguration.java

@PostConstruct
public void initialize() {
    AbstractConfiguration config = ConfigurationManager.getConfigInstance();

    if (config.containsKey(LOGBACK_CONFIG_NAME)) {
        System.out.println("Loading logging config.");

        reloadLogging(config.getString(LOGBACK_CONFIG_NAME));
    }/*from   ww w  . ja v  a2  s  .  co m*/

    config.addConfigurationListener(new ConfigurationListener() {
        @Override
        public synchronized void configurationChanged(ConfigurationEvent event) {
            if ((event.getType() == AbstractConfiguration.EVENT_ADD_PROPERTY
                    || event.getType() == AbstractConfiguration.EVENT_SET_PROPERTY)
                    && StringUtils.equalsIgnoreCase(LOGBACK_CONFIG_NAME, event.getPropertyName())
                    && event.getPropertyValue() != null && !event.isBeforeUpdate()) {
                System.out.println("Reloading logging config.");

                reloadLogging((String) event.getPropertyValue());
            }
        }
    });

    ConfigurationListener flumeConfigListener = new ConfigurationListener() {
        private FlumeLoggerLoader loggerLoader = null;

        public synchronized void configurationChanged(ConfigurationEvent event) {
            if (!(event.getType() == AbstractConfiguration.EVENT_SET_PROPERTY
                    || event.getType() == AbstractConfiguration.EVENT_ADD_PROPERTY
                    || event.getType() == AbstractConfiguration.EVENT_CLEAR_PROPERTY)) {
                return;
            }

            if (FlumeLoggerLoader.FLUME_LOGGER_ENABLED_PROPERTY.equals(event.getPropertyName())) {
                if ("true".equals(event.getPropertyValue())) {
                    if (loggerLoader == null) {
                        // construct the bean
                        loggerLoader = (FlumeLoggerLoader) applicationContext
                                .getBean(FlumeLoggerLoader.PROTOTYPE_BEAN_NAME, "chassis");
                    } // else we already have one so we're cool
                } else {
                    if (loggerLoader != null) {
                        // delete the bean
                        ConfigurableBeanFactory beanFactory = (ConfigurableBeanFactory) applicationContext
                                .getParentBeanFactory();
                        beanFactory.destroyBean(FlumeLoggerLoader.PROTOTYPE_BEAN_NAME, loggerLoader);
                        loggerLoader = null;
                    } // else we don't have any so we're cool
                }
            } else if (FlumeLoggerLoader.RELOAD_PROPERTIES.contains(event.getPropertyValue())) {
                // only reload if we're already running - otherwise ignore
                if (loggerLoader != null) {
                    // delete the bean
                    ConfigurableBeanFactory beanFactory = (ConfigurableBeanFactory) applicationContext
                            .getParentBeanFactory();
                    beanFactory.destroyBean(FlumeLoggerLoader.PROTOTYPE_BEAN_NAME, loggerLoader);
                    loggerLoader = null;

                    // construct the bean
                    loggerLoader = (FlumeLoggerLoader) applicationContext
                            .getBean(FlumeLoggerLoader.PROTOTYPE_BEAN_NAME, "chassis");
                } // else we don't have any so we're cool
            }
        }
    };

    config.addConfigurationListener(flumeConfigListener);

    flumeConfigListener.configurationChanged(new ConfigurationEvent(this,
            AbstractConfiguration.EVENT_SET_PROPERTY, FlumeLoggerLoader.FLUME_LOGGER_ENABLED_PROPERTY,
            config.getProperty(FlumeLoggerLoader.FLUME_LOGGER_ENABLED_PROPERTY), false));
}

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From source file:nz.co.senanque.madura.configuration.MaduraConfiguration.java

private void invokeListeners() {
    if (m_configurationListeners != null) {
        try {//from ww  w  .  j  a  v  a 2  s  . c om
            ConfigurationEvent event = new ConfigurationEvent(this, AbstractConfiguration.EVENT_SET_PROPERTY,
                    null, this, false);
            for (ConfigurationListener listener : m_configurationListeners) {
                listener.configurationChanged(event);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

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