| public getAddress ( ) : global::java.net.InetAddress | ||
| return | global::java.net.InetAddress | |
static string GetMSSqlPort(string instanceName, string dataSource, int timeout) {
string port = String.Empty;
try {
DatagramSocket socket = new DatagramSocket();
// send request
sbyte[] buf = new sbyte[] {2};
InetAddress address = InetAddress.getByName(dataSource);
DatagramPacket packet = new DatagramPacket(buf, buf.Length, address, 1434);
socket.send(packet);
sbyte[] recbuf = new sbyte[1024];
packet = new DatagramPacket(recbuf, recbuf.Length, packet.getAddress(), packet.getPort());
// try to receive from socket while increasing timeouts in geometric progression
int iterationTimeout = 1;
int totalTimeout = 0;
for(;;) {
socket.setSoTimeout(iterationTimeout);
try {
socket.receive(packet);
break;
}
catch (SocketTimeoutException e) {
totalTimeout += iterationTimeout;
iterationTimeout *= 2;
if (totalTimeout >= timeout*1000) {
throw new java.sql.SQLException(
String.Format ("Unable to retrieve the port number for {0} using UDP on port 1434. Please see your network administrator to solve this problem or add the port number of your SQL server instance to your connection string (i.e. port=1433).", dataSource)
);
}
}
}
sbyte[] rcvdSbytes = packet.getData();
char[] rcvdChars = new char[rcvdSbytes.Length];
for(int i=0; i < rcvdSbytes.Length; i++) {
rcvdChars[i] = (char)rcvdSbytes[i];
}
String received = new String(rcvdChars);
java.util.StringTokenizer st = new java.util.StringTokenizer(received, ";");
String prev = "";
bool instanceReached = instanceName == null || instanceName.Length == 0;
while (st.hasMoreTokens()) {
if (!instanceReached) {
if (prev.Trim().Equals("InstanceName")) {
if (String.Compare(instanceName,st.nextToken().Trim(),true, CultureInfo.InvariantCulture) == 0) {
instanceReached = true;
}
}
}
else {
if (prev.Trim().Equals("tcp")) {
port = st.nextToken().Trim();
//ensure we got a valid int
java.lang.Integer.parseInt(port);
break;
}
}
prev = st.nextToken();
}
socket.close();
if (!instanceReached)
throw new java.sql.SQLException(
String.Format ("Specified SQL Server '{0}\\{1}' not found.", dataSource, instanceName)
);
return port;
}
catch (java.sql.SQLException) {
throw;
}
catch (Exception e) {
throw new java.sql.SQLException(e.Message);
}
}
protected override void onCreate(Bundle savedInstanceState)
{
base.onCreate(savedInstanceState);
var sv = new ScrollView(this);
var b2 = new Button(this);
{
var ll = new LinearLayout(this);
//ll.setOrientation(LinearLayout.VERTICAL);
sv.addView(ll);
var b1 = new Button(this).AttachTo(ll);
b1.WithText("LANBroadcastListener createMulticastLock");
var c = 0;
b1.AtClick(
v =>
{
// server error { Message = , StackTrace = android.os.NetworkOnMainThreadException
//at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
//at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:175)
//at libcore.io.IoBridge.sendto(IoBridge.java:473)
//at java.net.PlainDatagramSocketImpl.send(PlainDatagramSocketImpl.java:182)
//at java.net.DatagramSocket.send(DatagramSocket.java:284)
new Thread(
delegate()
{
try
{
var socket = new DatagramSocket(); //construct a datagram socket and binds it to the available port and the localhos
c++;
var b = Encoding.UTF8.GetBytes(c + " hi from jvm!"); //creates a variable b of type byte
var dgram = new DatagramPacket((sbyte[])(object)b, b.Length, InetAddress.getByName("239.1.2.3"), 40404);//sends the packet details, length of the packet,destination address and the port number as parameters to the DatagramPacket
//dgram.setData(b);
//System.Console.WriteLine(
// "Sending " + b.Length + " bytes to " + dgram.getAddress() + ":" + dgram.getPort());//standard error output stream
socket.send(dgram); //send the datagram packet from this port
}
catch (Exception ex)
{
System.Console.WriteLine("server error " + new { ex.Message, ex.StackTrace });
}
}
)
{
Name = "sender"
}.Start();
}
);
b2.setText("The other button!");
ll.addView(b2);
this.setContentView(sv);
}
// http://www.zzzxo.com/q/answers-android-device-not-receiving-multicast-package-13221736.html
new Thread(
delegate()
{
// http://stackoverflow.com/questions/12610415/multicast-receiver-malfunction
// http://answers.unity3d.com/questions/250732/android-build-is-not-receiving-udp-broadcasts.html
// Acquire multicast lock
wifi = (WifiManager)getSystemService(Context.WIFI_SERVICE);
multicastLock = wifi.createMulticastLock("multicastLock");
//multicastLock.setReferenceCounted(true);
multicastLock.acquire();
System.Console.WriteLine("LANBroadcastListener ready...");
try
{
byte[] b = new byte[0x100];
// https://code.google.com/p/android/issues/detail?id=40003
var port = 40404;
MulticastSocket socket = new MulticastSocket(port); // must bind receive side
socket.setBroadcast(true);
socket.setReuseAddress(true);
socket.setTimeToLive(30);
socket.setReceiveBufferSize(0x100);
// https://code.google.com/p/android/issues/detail?id=40003
// http://stackoverflow.com/questions/6550618/multicast-support-on-android-in-hotspot-tethering-mode
// http://www.massapi.com/class/java/net/InetSocketAddress.java.html
// http://www.javadocexamples.com/java/net/MulticastSocket/joinGroup(SocketAddress%20mcastaddr,NetworkInterface%20netIf).html
// http://grokbase.com/t/hadoop/common-issues/117jsjk8d7/jira-created-hadoop-7472-rpc-client-should-deal-with-the-ip-address-changes
var group = InetAddress.getByName("239.1.2.3");
var groupSockAddr = new InetSocketAddress(group, port);
// what lan interfaces do we have?
socket.joinGroup(groupSockAddr,
NetworkInterface.getByName("wlan0")
);
System.Console.WriteLine("LANBroadcastListener joinGroup...");
while (true)
{
DatagramPacket dgram = new DatagramPacket((sbyte[])(object)b, b.Length);
socket.receive(dgram); // blocks until a datagram is received
var bytes = new MemoryStream((byte[])(object)dgram.getData(), 0, dgram.getLength());
var listen = Encoding.UTF8.GetString(bytes.ToArray());
System.Console.WriteLine("Received "
+ dgram.getLength()
+ " bytes from " + dgram.getAddress());
//dgram.setLength(b.Length); // must reset length field!s
}
}
catch
{
System.Console.WriteLine("client error");
}
}
)
{
Name = "client"
}.Start();
}
public static void Main(string[] args)
{
System.Console.WriteLine(": " + typeof(object).FullName);
/// http://www.daniweb.com/software-development/java/threads/424998/udp-client-server-in-java
new Thread(
delegate()
{
try
{
DatagramSocket socket = new DatagramSocket(); //construct a datagram socket and binds it to the available port and the localhos
byte[] b = Encoding.UTF8.GetBytes("hi from jvm!"); //creates a variable b of type byte
DatagramPacket dgram;
dgram = new DatagramPacket((sbyte[])(object)b, b.Length, InetAddress.getByName("239.1.2.3"), 40404);//sends the packet details, length of the packet,destination address and the port number as parameters to the DatagramPacket
//dgram.setData(b);
System.Console.WriteLine(
"Sending " + b.Length + " bytes to " + dgram.getAddress() + ":" + dgram.getPort());//standard error output stream
while (true)
{
System.Console.WriteLine(".");
socket.send(dgram); //send the datagram packet from this port
Thread.Sleep(1000); //cause the current executed thread to sleep for a certain number of miliseconds
}
}
catch
{
System.Console.WriteLine("server error");
}
}
)
{
Name = "server"
}.Start();
new Thread(
delegate()
{
try
{
byte[] b = new byte[011];
DatagramPacket dgram = new DatagramPacket((sbyte[])(object)b, b.Length);
MulticastSocket socket = new MulticastSocket(40404); // must bind receive side
socket.joinGroup(InetAddress.getByName("239.1.2.3"));
while (true)
{
socket.receive(dgram); // blocks until a datagram is received
System.Console.WriteLine("Received "
+ Encoding.UTF8.GetString((byte[])(object)dgram.getData())
+
" bytes from " + dgram.getAddress());
dgram.setLength(b.Length); // must reset length field!s
}
}
catch
{
System.Console.WriteLine("client error");
}
}
)
{
Name = "client"
}.Start();
CLRProgram.XML = new XElement("hello", "world");
CLRProgram.CLRMain(
);
}