public static ZprotoExample recv(Socket input) {
assert (input != null);
ZprotoExample self = new ZprotoExample(0);
ZFrame frame = null;
try {
// Read valid message frame from socket; we loop over any
// garbage data we might receive from badly-connected peers
while (true) {
// If we're reading from a ROUTER socket, get routingId
if (input.getType() == ZMQ.ROUTER) {
self.routingId = ZFrame.recvFrame(input);
if (self.routingId == null) return null; // Interrupted
if (!self.routingId.hasData()) return null; // Empty Frame (eg recv-timeout)
if (!input.hasReceiveMore()) throw new IllegalArgumentException();
}
// Read and parse command in frame
frame = ZFrame.recvFrame(input);
if (frame == null) return null; // Interrupted
// Get and check protocol signature
self.needle = ByteBuffer.wrap(frame.getData());
int signature = self.getNumber2();
if (signature == (0xAAA0 | 0)) break; // Valid signature
// Protocol assertion, drop message
while (input.hasReceiveMore()) {
frame.destroy();
frame = ZFrame.recvFrame(input);
}
frame.destroy();
}
// Get message id, which is first byte in frame
self.id = self.getNumber1();
int listSize;
int hashSize;
switch (self.id) {
case LOG:
{
self.sequence = self.getNumber2();
self.version = self.getNumber2();
if (self.version != 3) throw new IllegalArgumentException();
self.level = self.getNumber1();
self.event = self.getNumber1();
self.node = self.getNumber2();
self.peer = self.getNumber2();
self.time = self.getNumber8();
self.host = self.getString();
self.data = self.getLongString();
}
break;
case STRUCTURES:
{
self.sequence = self.getNumber2();
listSize = (int) self.getNumber4();
self.aliases = new ArrayList<String>();
while (listSize-- > 0) {
String string = self.getLongString();
self.aliases.add(string);
}
hashSize = (int) self.getNumber4();
self.headers = new HashMap<String, String>();
while (hashSize-- > 0) {
String key = self.getString();
String value = self.getLongString();
self.headers.put(key, value);
}
}
break;
case BINARY:
{
self.sequence = self.getNumber2();
self.flags = self.getBlock(4);
self.public_key = self.getBlock((int) self.getNumber4());
ByteBuffer bbIdentifier = ByteBuffer.wrap(self.getBlock(16));
self.identifier = new UUID(bbIdentifier.getLong(), bbIdentifier.getLong());
// Get next frame, leave current untouched
if (!input.hasReceiveMore()) throw new IllegalArgumentException();
self.address = ZFrame.recvFrame(input);
self.content = new ZMsg();
if (input.hasReceiveMore()) self.content.add(ZFrame.recvFrame(input));
}
break;
case TYPES:
{
self.sequence = self.getNumber2();
self.client_forename = self.getString();
self.client_surname = self.getString();
self.client_mobile = self.getString();
self.client_email = self.getString();
self.supplier_forename = self.getString();
self.supplier_surname = self.getString();
self.supplier_mobile = self.getString();
self.supplier_email = self.getString();
}
break;
default:
throw new IllegalArgumentException();
}
return self;
} catch (Exception e) {
// Error returns
System.out.printf("E: malformed message '%d'\n", self.id);
self.destroy();
return null;
} finally {
if (frame != null) frame.destroy();
}
}
