/**
* Make a copy of a writable object using serialization to a buffer.
*
* @param orig The object to copy
* @return The copied object
*/
public static <T extends Writable> T clone(T orig, Configuration conf) {
try {
@SuppressWarnings("unchecked") // Unchecked cast from Class to Class<T>
T newInst = ReflectionUtils.newInstance((Class<T>) orig.getClass(), conf);
ReflectionUtils.copy(conf, orig, newInst);
return newInst;
} catch (IOException e) {
throw new RuntimeException("Error writing/reading clone buffer", e);
}
}
@SuppressWarnings("unchecked")
private void add(Configuration conf, String serializationName) {
try {
Class<? extends Serialization> serializionClass =
(Class<? extends Serialization>) conf.getClassByName(serializationName);
serializations.add(ReflectionUtils.newInstance(serializionClass, getConf()));
} catch (ClassNotFoundException e) {
LOG.warn("Serilization class not found: " + StringUtils.stringifyException(e));
}
}
/** Construct a new {@link WritableComparable} instance. */
public WritableComparable newKey() {
return ReflectionUtils.newInstance(keyClass, null);
}