/** * Process a SPDY connection. Called in the input thread, should not block. * * @throws IOException */ protected int handleFrame() throws IOException { if (inFrame.c) { switch (inFrame.type) { case TYPE_SETTINGS: { int cnt = inFrame.readInt(); for (int i = 0; i < cnt; i++) { inFrame.readByte(); inFrame.read24(); inFrame.readInt(); } // TODO: save/interpret settings break; } case TYPE_GOAWAY: { int lastStream = inFrame.readInt(); log.info("GOAWAY last=" + lastStream); // Server will shut down - but will keep processing the current requests, // up to lastStream. If we sent any new ones - they need to be canceled. abort("GO_AWAY", lastStream); goAway = lastStream; return CLOSE; } case TYPE_RST_STREAM: { inFrame.streamId = inFrame.read32(); int errCode = inFrame.read32(); if (SpdyContext.debug) { trace( "> RST " + inFrame.streamId + " " + ((errCode < RST_ERRORS.length) ? RST_ERRORS[errCode] : Integer.valueOf(errCode))); } SpdyStream sch; synchronized (channels) { sch = channels.remove(Integer.valueOf(inFrame.streamId)); } // if RST stream is for a closed channel - we can ignore. if (sch != null) { sch.onReset(); } inFrame = null; break; } case TYPE_SYN_STREAM: { SpdyStream ch = getSpdyContext().getStream(this); synchronized (channels) { channels.put(Integer.valueOf(inFrame.streamId), ch); } try { ch.onCtlFrame(inFrame); inFrame = null; } catch (Throwable t) { log.log(Level.SEVERE, "Error parsing head SYN_STREAM", t); abort("Error reading headers " + t); return CLOSE; } spdyContext.onStream(this, ch); break; } case TYPE_SYN_REPLY: { SpdyStream sch; synchronized (channels) { sch = channels.get(Integer.valueOf(inFrame.streamId)); } if (sch == null) { abort("Missing channel"); return CLOSE; } try { sch.onCtlFrame(inFrame); inFrame = null; } catch (Throwable t) { log.info("Error parsing head SYN_STREAM" + t); abort("Error reading headers " + t); return CLOSE; } break; } case TYPE_PING: { SpdyFrame oframe = getSpdyContext().getFrame(); oframe.type = TYPE_PING; oframe.c = true; oframe.append32(inFrame.read32()); oframe.pri = 0x80; send(oframe, null); break; } } } else { // Data frame SpdyStream sch; synchronized (channels) { sch = channels.get(Integer.valueOf(inFrame.streamId)); } if (sch == null) { abort("Missing channel"); return CLOSE; } sch.onDataFrame(inFrame); synchronized (channels) { if (sch.finRcvd && sch.finSent) { channels.remove(Integer.valueOf(inFrame.streamId)); } } inFrame = null; } return LONG; }
public SpdyFrame getFrame(int type) { SpdyFrame frame = getSpdyContext().getFrame(); frame.c = true; frame.type = type; return frame; }