/** * Schedules the given node for resending, if enabled. This will invoke {@link com.yahoo.messagebus.routing.RoutingNode#prepareForRetry()} * if the node was queued. This method is NOT thread-safe, and should only be called by the messenger thread. * * @param node The node to resend. * @return True if the node was queued. */ public boolean scheduleRetry(RoutingNode node) { Message msg = node.getMessage(); if (!msg.getRetryEnabled()) { return false; } int retry = msg.getRetry() + 1; double delay = node.getReply().getRetryDelay(); if (delay < 0) { delay = retryPolicy.getRetryDelay(retry); } if (msg.getTimeRemainingNow() * 0.001 - delay <= 0) { node.addError(ErrorCode.TIMEOUT, "Timeout exceeded by resender, giving up."); return false; } node.prepareForRetry(); // consumes the reply node.getTrace().trace(TraceLevel.COMPONENT, "Message scheduled for retry " + retry + " in " + delay + " seconds."); msg.setRetry(retry); queue.add(new Entry(node, SystemTimer.INSTANCE.milliTime() + (long)(delay * 1000))); return true; }
@Override public void run() { Reply reply = decode(envelope.reply.getProtocol(), payload, Reply.class); reply.setRetryDelay(envelope.reply.getRetryDelay()); reply.getTrace().getRoot().addChild(TraceNode.decode(envelope.reply.getTrace().getRoot().encode())); for (int i = 0, len = envelope.reply.getNumErrors(); i < len; ++i) { Error error = envelope.reply.getError(i); reply.addError(new Error(error.getCode(), error.getMessage(), error.getService() != null ? error.getService() : envelope.sender.hostId)); } owner.deliverReply(reply, envelope.parent.recipient); } });
@Override protected void createResponse(Values ret, Reply reply, Version version, byte [] payload) { int[] eCodes = new int[reply.getNumErrors()]; String[] eMessages = new String[reply.getNumErrors()]; String[] eServices = new String[reply.getNumErrors()]; for (int i = 0; i < reply.getNumErrors(); ++i) { Error error = reply.getError(i); eCodes[i] = error.getCode(); eMessages[i] = error.getMessage(); eServices[i] = error.getService() != null ? error.getService() : ""; } ret.add(new StringValue(version.toString())); ret.add(new DoubleValue(reply.getRetryDelay())); ret.add(new Int32Array(eCodes)); ret.add(new StringArray(eMessages)); ret.add(new StringArray(eServices)); ret.add(new StringValue(reply.getProtocol())); ret.add(new DataValue(payload)); ret.add(new StringValue(reply.getTrace().getRoot() != null ? reply.getTrace().getRoot().encode() : "")); }
root.setDouble(RETRYDELAY_F, reply.getRetryDelay()); root.setString(PROTOCOL_F, reply.getProtocol().toString()); root.setData(BLOB_F, payload);