/**
* Gets the value stored under the given <code>key</code>.
*
* @param key the key to look up
* @return the value stored under the given <code>key</code>
* @throws ConnectionException if the connection is not active or a communication error occurs or
* an exit signal was received or the remote node sends a message containing an invalid cookie
* @throws TimeoutException if a timeout occurred while trying to fetch the value
* @throws NotFoundException if the requested key does not exist
* @throws UnknownException if any other error occurs
* @since 2.9
*/
public ErlangValue read(final OtpErlangString key)
throws ConnectionException, TimeoutException, NotFoundException, UnknownException {
try {
final ResultList result = req_list((RequestList) new RequestList().addRead(key));
if (result.size() == 1) {
return result.processReadAt(0);
}
throw new UnknownException(result.getResults());
} catch (final AbortException e) {
// should not occur (we did not commit anything)
throw new UnknownException(e);
}
}
