/**
* Looks up a resource named 'name' in the classpath. The resource must map to a file with
* .properties extention. The name is assumed to be absolute and can use either "/" or "." for
* package segment separation with an optional leading "/" and optional ".properties" suffix.
* Thus, the following names refer to the same resource:
*
* <pre>
* some.pkg.Resource
* some.pkg.Resource.properties
* some/pkg/Resource
* some/pkg/Resource.properties
* /some/pkg/Resource
* /some/pkg/Resource.properties
* </pre>
*
* @param name classpath resource name [may not be null]
* @param loader classloader through which to load the resource [null is equivalent to the
* application loader]
* @return resource converted to java.util.Properties [may be null if the resource was not found
* and THROW_ON_LOAD_FAILURE is false]
* @throws IllegalArgumentException if the resource was not found and THROW_ON_LOAD_FAILURE is
* true
*/
public static Properties loadProperties(String name, ClassLoader loader) {
if (name == null) throw new IllegalArgumentException("null input: name");
if (name.startsWith("/")) name = name.substring(1);
if (name.endsWith(SUFFIX)) name = name.substring(0, name.length() - SUFFIX.length());
Properties result = null;
InputStream in = null;
try {
if (loader == null) loader = ClassLoader.getSystemClassLoader();
if (LOAD_AS_RESOURCE_BUNDLE) {
name = name.replace('/', '.');
// Throws MissingResourceException on lookup failures:
final ResourceBundle rb = ResourceBundle.getBundle(name, Locale.getDefault(), loader);
result = new Properties();
for (Enumeration keys = rb.getKeys(); keys.hasMoreElements(); ) {
final String key = (String) keys.nextElement();
final String value = rb.getString(key);
result.put(key, value);
}
} else {
name = name.replace('.', '/');
if (!name.endsWith(SUFFIX)) name = name.concat(SUFFIX);
// Returns null on lookup failures:
in = loader.getResourceAsStream(name);
if (in != null) {
result = new Properties();
result.load(in); // Can throw IOException
}
}
} catch (Exception e) {
result = null;
} finally {
if (in != null)
try {
in.close();
} catch (Throwable ignore) {
}
}
if (THROW_ON_LOAD_FAILURE && (result == null)) {
throw new IllegalArgumentException(
"could not load ["
+ name
+ "]"
+ " as "
+ (LOAD_AS_RESOURCE_BUNDLE ? "a resource bundle" : "a classloader resource"));
}
return result;
}
@Override
protected void updateRuntime(
OperationContext context,
final ModelNode operation,
final PeriodicRotatingFileHandler handler)
throws OperationFailedException {
super.updateRuntime(context, operation, handler);
final ModelNode suffix = SUFFIX.resolveModelAttribute(context, operation);
if (suffix.isDefined()) {
handler.setSuffix(suffix.asString());
}
final ModelNode append = APPEND.resolveModelAttribute(context, operation);
if (append.isDefined()) {
handler.setAppend(append.asBoolean());
}
}
