@Override
public boolean equals(Object o) {
if (this == o) return true;
// TODO: why not allow equality to non-HashIndex indices?
if (!(o instanceof HashIndex)) return false;
HashIndex hashIndex = (HashIndex) o;
return indexes.equals(hashIndex.indexes) && objects.equals(hashIndex.objects);
}
/** Method to keep the connection alive with the name server */
public void run() {
boolean connected = false;
int ticket = 0;
int serial = -1;
int time = 1000;
DatagramPacket inPack = new DatagramPacket(new byte[1024], 1024);
DatagramPacket outPack = new DatagramPacket(new byte[1024], 1024);
ByteArrayOutputStream outBuf = new ByteArrayOutputStream();
DataInputStream inData;
DataOutputStream outData = new DataOutputStream(outBuf);
while (running) {
if (!connected) { // Thoust ought Register thine self
try {
outBuf.reset();
outData.writeByte(0);
outData.writeUTF(userName);
outData.writeInt(portNum);
outData.flush();
outPack.setData(outBuf.toByteArray());
nameServer.send(outPack);
} catch (IOException e) {
System.err.println("LeetActive: " + e);
}
} else { // Thoust ought Renew thine self
try {
outBuf.reset();
outData.writeByte(2);
outData.writeInt(ticket);
outData.flush();
outPack.setData(outBuf.toByteArray());
nameServer.send(outPack);
} catch (IOException e) {
System.err.println(e);
}
}
// Now we will receive a packet...
try {
nameServer.receive(inPack);
inData = new DataInputStream(new ByteArrayInputStream(inPack.getData()));
byte type = inData.readByte();
if (type == 1) { // Twas a ticket packet
try {
ticket = inData.readInt();
if (ticket > -1) { // Make sure its not evil
connected = true;
} else {
connected = false;
}
time = inData.readInt();
} catch (IOException e) {
System.err.println(e);
}
}
if (type == 5) { // Twas an update packet
try {
int s = inData.readInt();
if (s > serial) { // Make sure its not old
serial = s;
int size = inData.readInt();
ArrayList newList = new ArrayList(size);
for (int x = 0; x < size; x++) {
newList.add(
new String(
"" + inData.readUTF() + "@" + inData.readUTF() + ":" + inData.readInt()));
}
if (!newList.equals(hostList)) {
hostList = newList;
updated = true;
}
}
} catch (IOException e) {
System.err.println(e);
}
}
} catch (SocketTimeoutException e) { // Server hates you
connected = false;
System.err.println(e);
} catch (IOException e) {
System.err.println(e);
}
try { // Take a nap
sleep(time / 4);
} catch (InterruptedException e) {
}
}
}
