// make sure we don't return without first releasing the file reference content
@Override
public ReturnOption handle(FileDescriptor file, ByteBuf data) {
if (file == FileDescriptor.FINAL) return this.downstream.handle(file, data);
ByteBuf in = data;
if (in != null) {
while (in.isReadable()) {
int amt = Math.min(in.readableBytes(), this.size - this.currchunk);
ByteBuf out = in.copy(in.readerIndex(), amt);
in.skipBytes(amt);
this.currchunk += amt;
boolean eof = (this.currchunk == this.size) || (!in.isReadable() && file.isEof());
this.nextMessage(out, file, eof);
if (eof) {
this.seqnum++;
this.currchunk = 0;
}
}
in.release();
} else if (file.isEof()) {
this.nextMessage(null, file, false);
}
// write all messages in the queue
while (this.outlist.size() > 0) {
ReturnOption ret = this.downstream.handle(this.outlist.remove(0), this.outbuf.remove(0));
if (ret != ReturnOption.CONTINUE) return ret;
}
return ReturnOption.CONTINUE;
}
public void nextMessage(ByteBuf out, FileDescriptor curr, boolean eof) {
// create the output message
FileDescriptor blk = new FileDescriptor();
blk.setModTime(System.currentTimeMillis());
// keep the path, just vary the name to the template
blk.setPath(curr.path().resolvePeer("/" + this.template.replace("%seq%", this.seqnum + "")));
blk.setEof(eof);
if (eof) blk.setSize(this.currchunk);
else blk.setSize(0); // don't know yet
this.outlist.add(blk);
this.outbuf.add(out);
}