public StreamStatus buildStreamStatus(String toNodeId) {
StreamStatus.Builder bldr = StreamStatus.newBuilder();
if (toNodeId != null) {
bldr.setToNodeId(toNodeId);
bldr.setFromNodeId(mina.getMyNodeId());
}
bldr.setStreamId(streamId);
if (pageBuf.getTotalPages() > 0) bldr.setTotalPages(pageBuf.getTotalPages());
StreamPosition sp = pageBuf.getStreamPosition();
bldr.setLastContiguousPage(sp.getLastContiguousPage());
if (sp.getPageMap() > 0) bldr.setPageMap(sp.getPageMap());
return bldr.build();
}
public void foundSource(SourceStatus sourceStat, StreamStatus streamStat) {
String fromNodeId = sourceStat.getFromNode().getId();
String sourceId = fromNodeId;
if (streamStat.getTotalPages() != 0) {
long totalPages = streamStat.getTotalPages();
if (pageBuf == null) this.totalPages = totalPages;
else {
if (pageBuf.getTotalPages() <= 0) pageBuf.setTotalPages(totalPages);
else {
if (pageBuf.getTotalPages() != totalPages) {
log.error(
"Node "
+ sourceId
+ " advertised total pages "
+ totalPages
+ " for stream "
+ streamId
+ ", but I have already recorded "
+ pageBuf.getTotalPages());
return;
}
}
}
}
if (streamConns.haveListenConnWithId(sourceId)) return;
// If we're not receiving, then we're just caching sources to pass to an external listener - so
// cache it
if (!receiving) {
mina.getSourceMgr().cacheSourceUntilReady(sourceStat, streamStat);
notifyListenersOfSource(sourceId);
return;
}
// Not listening to this node - let's see if we should
if (mina.getConfig().isAgoric()) {
if (!bidStrategy.worthConnectingTo(new AuctionState(sourceStat.getAuctionState()))) {
log.debug(
"Not connecting to node " + sourceId + " for " + streamId + " - bid strategy says no");
mina.getSourceMgr().cacheSourceUntilAgoricsAcceptable(sourceStat, streamStat);
return;
}
}
// Check that they have data useful to us
if (pageBuf != null) {
StreamPosition sp =
new StreamPosition(streamStat.getLastContiguousPage(), streamStat.getPageMap());
if (sp.highestIncludedPage() <= pageBuf.getLastContiguousPage()) {
// Useless at the moment - cache them and ask again later
mina.getSourceMgr().cacheSourceUntilDataAvailable(sourceStat, streamStat);
return;
}
}
// This is a useful source - let our listeners know
notifyListenersOfSource(sourceId);
if (streamConns.getNumListenConns() >= mina.getConfig().getMaxSources()) {
mina.getSourceMgr().cacheSourceUntilReady(sourceStat, streamStat);
return;
}
try {
streamConns.makeListenConnectionTo(sourceStat);
} catch (MinaConnectionException e) {
log.error("Caught MinaConnectionException when attempting to connect to " + sourceId);
}
}