public void fileDescriptorReceived(DownloadConnection source, FileDescriptor fd)
throws IOException {
if (this.fd != null) {
if (T.t) {
T.info("Already has FD. Ignore the new one and start download for this connection.");
}
if (T.t) {
T.ass(source.readyToStartDownload(), "Not ready to start download?");
}
if (needsMoreDownloadConnections()) {
source.startDownloadingBlock();
}
return;
}
if (T.t) {
T.debug("Received file descriptor " + fd);
}
this.fd = fd;
setState(State.DOWNLOADING);
ArrayList<DownloadConnection> al = new ArrayList<DownloadConnection>();
for (DownloadConnection c : connections.values()) {
al.add(c);
}
for (DownloadConnection c : al) {
if (c.readyToStartDownload() && needsMoreDownloadConnections()) {
c.startDownloadingBlock();
}
}
}
private BitSet getInterestingBlocks(BlockMask remote) throws IOException {
if (T.t) {
T.ass(fd != null, "Need a FD for this call to work");
}
BitSet interestingBlocks = new BitSet();
BlockMask myBm = manager.getCore().getFileManager().getBlockMask(fd.getRootHash());
if (myBm != null) {
interestingBlocks.or(myBm);
}
interestingBlocks.flip(0, fd.getNumberOfBlocks());
interestingBlocks.and(remote);
return interestingBlocks;
}
public static Download createFrom(ObjectInputStream in, DownloadManager m) throws IOException {
try {
Hash h = new Hash();
int r = in.read(h.array());
String fn = in.readUTF();
ArrayList<Integer> guids = (ArrayList<Integer>) in.readObject();
if (T.t) {
T.ass(r == h.array().length, "Incorrect length when deserializing download");
}
BlockStorage bs = BlockStorage.getById(m.getCore(), in.readInt());
Download d = new Download(m, h, bs, fn, guids);
d.fd = d.manager.getCore().getFileManager().getFd(h);
return d;
} catch (ClassNotFoundException e) {
throw new IOException("Could not find class while deserializing: " + e);
}
}