/**
* Get the protocol name. If the protocol class has a ProtocolAnnotation, then get the protocol
* name from the annotation; otherwise the class name is the protocol name.
*/
public static String getProtocolName(Class<?> protocol) {
if (protocol == null) {
return null;
}
ProtocolInfo anno = protocol.getAnnotation(ProtocolInfo.class);
return (anno == null) ? protocol.getName() : anno.protocolName();
}
/**
* Get the protocol version from protocol class. If the protocol class has a ProtocolAnnotation,
* then get the protocol name from the annotation; otherwise the class name is the protocol name.
*/
public static long getProtocolVersion(Class<?> protocol) {
if (protocol == null) {
throw new IllegalArgumentException("Null protocol");
}
long version;
ProtocolInfo anno = protocol.getAnnotation(ProtocolInfo.class);
if (anno != null) {
version = anno.protocolVersion();
if (version != -1) return version;
}
try {
Field versionField = protocol.getField("versionID");
versionField.setAccessible(true);
return versionField.getLong(protocol);
} catch (NoSuchFieldException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
}
}