Examples with ClassLoaderInterface com.opensymphony.xwork2.util.finder.ClassLoaderInterface used on opensource projects

Example 6 with ClassLoaderInterface

use of com.opensymphony.xwork2.util.finder.ClassLoaderInterface in project struts by apache.

the class BaseOsgiHost method findPropertiesFileInRelativePath.

/**
 * Attempt to read a properties file from the relative path of the current classloader.
 * Intended as an alternate configuration fallback for special scenarios where the default lookup
 * is not functional (such as for unit tests).
 *
 * @param fileName the filename (relative path) of the properties file.
 * @return a Properties bundle loaded from the provided fileName.
 * @throws IOException if the properties file does not exist or cannot be loaded.
 */
protected Properties findPropertiesFileInRelativePath(String fileName) throws IOException {
    if (fileName == null || fileName.toLowerCase().endsWith(".class") || fileName.toLowerCase().endsWith(".jar")) {
        throw new IllegalArgumentException("Provided file name cannot be null, nor should it be a class or jar file");
    }
    final ClassLoaderInterface classLoaderInterface = new ClassLoaderInterfaceDelegate(Thread.currentThread().getContextClassLoader());
    final URL fileUrl = classLoaderInterface.getResource(fileName);
    try (InputStream reader = new BufferedInputStream(fileUrl.openStream())) {
        Properties properties = new Properties();
        properties.load(reader);
        return properties;
    }
}