/// <exception cref="System.IO.IOException"/>
public virtual void SelectInputStreams(ICollection <EditLogInputStream> streams, long
fromTxnId, bool inProgressOk)
{
QuorumCall <AsyncLogger, RemoteEditLogManifest> q = loggers.GetEditLogManifest(fromTxnId
, inProgressOk);
IDictionary <AsyncLogger, RemoteEditLogManifest> resps = loggers.WaitForWriteQuorum
(q, selectInputStreamsTimeoutMs, "selectInputStreams");
Log.Debug("selectInputStream manifests:\n" + Joiner.On("\n").WithKeyValueSeparator
(": ").Join(resps));
PriorityQueue <EditLogInputStream> allStreams = new PriorityQueue <EditLogInputStream
>(64, JournalSet.EditLogInputStreamComparator);
foreach (KeyValuePair <AsyncLogger, RemoteEditLogManifest> e in resps)
{
AsyncLogger logger = e.Key;
RemoteEditLogManifest manifest = e.Value;
foreach (RemoteEditLog remoteLog in manifest.GetLogs())
{
Uri url = logger.BuildURLToFetchLogs(remoteLog.GetStartTxId());
EditLogInputStream elis = EditLogFileInputStream.FromUrl(connectionFactory, url,
remoteLog.GetStartTxId(), remoteLog.GetEndTxId(), remoteLog.IsInProgress());
allStreams.AddItem(elis);
}
}
JournalSet.ChainAndMakeRedundantStreams(streams, allStreams, fromTxnId);
}
/// <exception cref="System.IO.IOException"/>
internal static OfflineEditsLoader CreateLoader(OfflineEditsVisitor visitor, string
inputFileName, bool xmlInput, OfflineEditsViewer.Flags flags)
{
if (xmlInput)
{
return(new OfflineEditsXmlLoader(visitor, new FilePath(inputFileName), flags));
}
else
{
FilePath file = null;
EditLogInputStream elis = null;
OfflineEditsLoader loader = null;
try
{
file = new FilePath(inputFileName);
elis = new EditLogFileInputStream(file, HdfsConstants.InvalidTxid, HdfsConstants.
InvalidTxid, false);
loader = new OfflineEditsBinaryLoader(visitor, elis, flags);
}
finally
{
if ((loader == null) && (elis != null))
{
elis.Close();
}
}
return(loader);
}
}
