diff options
Diffstat (limited to 'src/main/java/pl')
8 files changed, 87 insertions, 52 deletions
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java index 256fa6b..62cd544 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java @@ -2,6 +2,7 @@ package pl.edu.mimuw.cloudatlas.agent; import java.net.Inet4Address; import java.net.InetAddress; +import java.net.SocketException; import java.net.UnknownHostException; import java.rmi.registry.LocateRegistry; import java.rmi.registry.Registry; @@ -39,18 +40,19 @@ public class Agent { } } - public static HashMap<ModuleType, Module> initializeModules() { + public static HashMap<ModuleType, Module> initializeModules() throws UnknownHostException, SocketException, NullPointerException { HashMap<ModuleType, Module> modules = new HashMap<ModuleType, Module>(); modules.put(ModuleType.TIMER_SCHEDULER, new TimerScheduler(ModuleType.TIMER_SCHEDULER)); modules.put(ModuleType.RMI, new Remik()); - Long freshnessPeriod = new Long(System.getProperty("freshness_period")); + Long freshnessPeriod = Long.getLong("freshness_period"); modules.put(ModuleType.STATE, new Stanik(freshnessPeriod)); modules.put(ModuleType.QUERY, new Qurnik()); - try { - modules.put(ModuleType.UDP, new UDUP(InetAddress.getByName("127.0.0.1"), 5988, 5000, 20000)); - } catch (UnknownHostException e) { - e.printStackTrace(); - } + + Integer port = Integer.getInteger("UDUPServer.port"); + Integer timeout = Integer.getInteger("UDUPServer.timeout"); + Integer bufsize = Integer.getInteger("UDUPServer.bufsize"); + UDUPServer server = new UDUPServer(InetAddress.getByName("127.0.0.1"), port, bufsize); + modules.put(ModuleType.UDP, new UDUP(port, timeout, bufsize, server)); // TODO add modules as we implement them return modules; } @@ -89,14 +91,24 @@ public class Agent { } public static void runModulesAsThreads() { - HashMap<ModuleType, Module> modules = initializeModules(); + HashMap<ModuleType, Module> modules = null; + + try { + modules = initializeModules(); + } catch (UnknownHostException | SocketException e) { + System.out.println("Module initialization failed"); + e.printStackTrace(); + return; + } + HashMap<ModuleType, Executor> executors = initializeExecutors(modules); ArrayList<Thread> executorThreads = initializeExecutorThreads(executors); - eventBus = new EventBus(executors); + Thread UDUPServerThread = new Thread(((UDUP) modules.get(ModuleType.UDP)).getServer()); Thread eventBusThread = new Thread(eventBus); System.out.println("Initializing event bus"); eventBusThread.start(); + UDUPServerThread.start(); } private static void initZones() { diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/GossipGirlMessage.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/GossipGirlMessage.java index 508fe88..03525bb 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/GossipGirlMessage.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/GossipGirlMessage.java @@ -19,6 +19,8 @@ public abstract class GossipGirlMessage extends AgentMessage { this.type = type; } + public GossipGirlMessage() {}; + public Type getType() { return type; } diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/RemoteGossipGirlMessage.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/RemoteGossipGirlMessage.java index 0a3a868..4c223f5 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/RemoteGossipGirlMessage.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/RemoteGossipGirlMessage.java @@ -10,6 +10,8 @@ public class RemoteGossipGirlMessage extends GossipGirlMessage { super(messageId, timestamp, type); } + public RemoteGossipGirlMessage() {}; + public void setSentTimestamp(ValueTime sentTimestamp) { this.sentTimestamp = sentTimestamp; } diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/UDUPMessage.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/UDUPMessage.java index 3751b3c..b955340 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/UDUPMessage.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/messages/UDUPMessage.java @@ -6,15 +6,15 @@ import pl.edu.mimuw.cloudatlas.model.ValueContact; public class UDUPMessage extends AgentMessage { private ValueContact contact; - private AgentMessage content; + private RemoteGossipGirlMessage content; - public UDUPMessage(String messageId, long timestamp, ValueContact contact, AgentMessage content) { + public UDUPMessage(String messageId, long timestamp, ValueContact contact, RemoteGossipGirlMessage content) { super(messageId, ModuleType.UDP, timestamp); this.contact = contact; this.content = content; } - public UDUPMessage(String messageId, ValueContact contact, AgentMessage content) { + public UDUPMessage(String messageId, ValueContact contact, RemoteGossipGirlMessage content) { super(messageId, ModuleType.UDP); this.contact = contact; this.content = content; @@ -27,11 +27,11 @@ public class UDUPMessage extends AgentMessage { module.handleTyped(this); } - public AgentMessage getContent() { + public RemoteGossipGirlMessage getContent() { return content; } - public void setContent(AgentMessage content) { + public void setContent(RemoteGossipGirlMessage content) { this.content = content; } diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUP.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUP.java index 8c6db8f..501c76e 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUP.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUP.java @@ -23,30 +23,19 @@ import java.util.concurrent.atomic.AtomicBoolean; * due to ValueContact design */ -// TODO set server port in global config - must be the same everywhere -// TODO same with buffer size - -// TODO separate server like newapiimpl -// TODO add timestamps as close to sending as possible - -// TODO wysylac tylko remotegossipgirl message -// TODO update timestampow odpowiedni w tym remotegossipgirlmessage - -public class UDUP extends Module implements Runnable { +public class UDUP extends Module { private UDUPClient client; private UDUPServer server; - private final AtomicBoolean running; - public UDUP(InetAddress serverAddr, - int serverPort, + public UDUP(int serverPort, int timeout, - int bufferSize) { + int bufferSize, + UDUPServer server) { super(ModuleType.UDP); - this.running = new AtomicBoolean(false); try { this.client = new UDUPClient(this, serverPort, bufferSize); - this.server = new UDUPServer(this, serverAddr, serverPort, bufferSize); - this.running.getAndSet(true); + this.server = server; + this.server.setUDUP(this); } catch (SocketException e) { e.printStackTrace(); this.client.close(); @@ -54,17 +43,8 @@ public class UDUP extends Module implements Runnable { } } - public void run() { - System.out.println("UDP server running"); - while(this.running.get()) { - try { - this.server.acceptMessage(); - } catch (IOException | InterruptedException e) { - e.printStackTrace(); - this.running.getAndSet(false); - this.server.close(); - } - } + public UDUPServer getServer() { + return this.server; } public void handleTyped(UDUPMessage event) throws InterruptedException { diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPClient.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPClient.java index 2e4f0b4..089cad2 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPClient.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPClient.java @@ -1,6 +1,8 @@ package pl.edu.mimuw.cloudatlas.agent.modules; import pl.edu.mimuw.cloudatlas.agent.messages.UDUPMessage; +import pl.edu.mimuw.cloudatlas.model.ValueTime; +import pl.edu.mimuw.cloudatlas.model.ValueUtils; import javax.xml.crypto.Data; import java.io.IOException; @@ -67,9 +69,12 @@ public class UDUPClient { public void sendMessage(UDUPMessage msg) throws IOException { int packetNo = 1; byte[] sendBuf; - byte[] dataBuf = this.serializer.serialize(msg); + byte[] dataBuf; this.lastTransmission++; + msg.getContent().setSentTimestamp(ValueUtils.currentTime()); + dataBuf = this.serializer.serialize(msg); + do { sendBuf = packSendBuffer(this.lastTransmission, packetNo, dataBuf); DatagramPacket packet = new DatagramPacket(sendBuf, 0, sendBuf.length, msg.getContact().getAddress(), this.serverPort); diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPSerializer.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPSerializer.java index 40c4d7c..0f7b99d 100644 --- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPSerializer.java +++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/UDUPSerializer.java @@ -12,6 +12,7 @@ import java.io.ByteArrayOutputStream; import java.net.Inet4Address; import java.net.InetAddress; import java.net.UnknownHostException; +import java.rmi.Remote; import java.util.ArrayList; import java.util.HashSet; import java.util.LinkedHashMap; @@ -138,6 +139,9 @@ public class UDUPSerializer { kryo.register(UDUPMessage.class); kryo.register(UpdateAttributesMessage.class); kryo.register(UpdateQueriesMessage.class); + kryo.register(GossipGirlMessage.class); + kryo.register(GossipGirlMessage.Type.class); + kryo.register(RemoteGossipGirlMessage.class); // modules kryo.register(TimerScheduledTask.class); 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() { |