Examples with OverrideCombiner org.apache.commons.configuration.tree.OverrideCombiner used on opensource projects

Example 1 with OverrideCombiner

use of org.apache.commons.configuration.tree.OverrideCombiner in project engine by craftercms.

the class MultiConfigurationBuilder method getConfiguration.

@Override
public Configuration getConfiguration() throws ConfigurationException {
    List<Configuration> configs = new ArrayList<>();
    // Last configurations should be loaded and added first so that they have greater priority.
    logger.info("Loading XML configurations in the order in which the properties will be resolved");
    for (int i = configPaths.length - 1; i >= 0; i--) {
        try {
            Resource resource = resourceLoader.getResource(configPaths[i]);
            if (resource.exists()) {
                XMLConfiguration config = new XMLConfiguration();
                config.load(resource.getInputStream());
                logger.info("XML configuration loaded from " + resource);
                configs.add(config);
            }
        } catch (Exception e) {
            throw new ConfigurationException("Unable to load configuration at " + configPaths[i], e);
        }
    }
    if (configs.size() > 1) {
        CombinedConfiguration combinedConfig = new CombinedConfiguration(new OverrideCombiner());
        for (Configuration config : configs) {
            combinedConfig.addConfiguration((AbstractConfiguration) config);
        }
        return combinedConfig;
    } else if (configs.size() == 1) {
        return configs.get(0);
    } else {
        return null;
    }
}