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Diffstat (limited to 'src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPServer.java')
-rw-r--r--src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPServer.java48
1 files changed, 39 insertions, 9 deletions
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPServer.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPServer.java
index b71a475..94882e4 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPServer.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPServer.java
@@ -2,6 +2,7 @@ package pl.edu.mimuw.cloudatlas.agent.modules;
import com.google.common.primitives.Bytes;
import pl.edu.mimuw.cloudatlas.agent.messages.UDUPMessage;
+import pl.edu.mimuw.cloudatlas.model.ValueUtils;
import java.io.ByteArrayInputStream;
import java.io.IOException;
@@ -10,22 +11,42 @@ import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.NoSuchElementException;
+import java.util.concurrent.atomic.AtomicBoolean;
-public class UDUPServer {
+public class UDUPServer implements Runnable {
private UDUP udp;
private UDUPSerializer serializer;
private DatagramSocket socket;
private InetAddress address;
private HashMap<String, ArrayList<byte[]>> partialPackets;
private int bufSize;
+ private final AtomicBoolean running;
- public UDUPServer(UDUP udp, InetAddress addr, int port, int bufSize) throws SocketException {
- this.udp = udp;
+ public UDUPServer(InetAddress addr, int port, int bufSize) throws SocketException {
this.socket = new DatagramSocket(port, addr);
this.address = addr;
this.bufSize = bufSize;
this.partialPackets = new HashMap<>();
this.serializer = new UDUPSerializer();
+ this.running = new AtomicBoolean(false);
+ }
+
+ public void setUDUP(UDUP udup) {
+ this.udp = udup;
+ }
+
+ public void run() {
+ System.out.println("UDP server running");
+ this.running.getAndSet(true);
+ while(this.running.get()) {
+ try {
+ this.acceptMessage();
+ } catch (IOException | InterruptedException e) {
+ e.printStackTrace();
+ this.running.getAndSet(false);
+ this.close();
+ }
+ }
}
public void acceptMessage() throws IOException, InterruptedException {
@@ -34,14 +55,19 @@ public class UDUPServer {
String transmissionID = packTransmissionID(transmissionNo, packet.getAddress());
int packetNo = readPacketNo(packet.getData());
byte[] packetData = trimPacketBuffer(packet.getData());
+ UDUPMessage msg;
if (packetNo == 1 && packet.getLength() < this.bufSize) {
- UDUPMessage msg = this.serializer.deserialize(packetData);
+ msg = this.serializer.deserialize(packetData);
+ msg.getContent().setReceivedTimestamp(ValueUtils.currentTime());
System.out.println("UDP received message " + msg.getContent().getMessageId());
- sendMessageFurther(msg);
} else {
System.out.println("UDP received partial message with transmission id " + transmissionID + " packet no " + packetNo);
- this.addPartialMessageAndCheckSerialization(transmissionID, packetNo, packetData);
+ msg = this.addPartialMessageAndCheckSerialization(transmissionID, packetNo, packetData);
+ }
+
+ if (msg != null) {
+ sendMessageFurther(msg);
}
}
@@ -104,14 +130,16 @@ public class UDUPServer {
return fullData;
}
- public void addPartialMessageAndCheckSerialization(String transmissionID, int newPacketNo, byte[] packetData) {
+ public UDUPMessage addPartialMessageAndCheckSerialization(String transmissionID, int newPacketNo, byte[] packetData) {
+ UDUPMessage msg = null;
+
if (this.partialPackets.containsKey(transmissionID)) {
try {
byte[] allPacketData = concatPacketData(transmissionID, newPacketNo, packetData);
- UDUPMessage msg = this.serializer.deserialize(allPacketData);
+ msg = this.serializer.deserialize(allPacketData);
+ msg.getContent().setReceivedTimestamp(ValueUtils.currentTime());
this.partialPackets.remove(transmissionID);
System.out.println("Kryo put together whole transmission for msg " + msg.getContent().getMessageId());
- this.udp.sendMessage(msg.getContent());
} catch (Error | Exception e) {
System.out.println("Kryo didn't deserialize partial message, waiting to receive the rest");
}
@@ -120,6 +148,8 @@ public class UDUPServer {
newTransmission.add(newPacketNo-1, packetData);
this.partialPackets.put(transmissionID, newTransmission);
}
+
+ return msg;
}
public void close() {