enter image description here
I'm working on Fix 4.4 protocol using quickfix library. My message is rejecting due to some tags and time accuracy problems.
ClientInitiator app = new ClientInitiator();
SessionSettings settings = new SessionSettings(#"D:\FixInitiator\FixInitiator\initiator.cfg");
QuickFix.Application application = new ClientInitiator();
FileStoreFactory storeFactory = new FileStoreFactory(settings);
ScreenLogFactory logFactory = new ScreenLogFactory(settings);
MessageFactory messageFactory = new DefaultMessageFactory();
SocketInitiator initiator = new SocketInitiator(application, storeFactory, settings, logFactory, messageFactory);
initiator.start();
Thread.Sleep(3000);
System.Collections.ArrayList list = initiator.getSessions();
SessionID sessionID = (SessionID)list[0];
//QuickFix44.NewOrderSingle order = new QuickFix44.NewOrderSingle();
//order.set(new OrderQty(45));
//order.set(new Price(25.4d));
//Console.WriteLine("Sending Order to Server");
//Session.sendToTarget(order, sessionID);
Console.ReadLine();
initiator.stop();
public class ClientInitiator : QuickFix.Application
{
public void onCreate(QuickFix.SessionID value)
{
Console.WriteLine("Message OnCreate" + value.toString());
}
public void onLogon(QuickFix.SessionID value)
{
Console.WriteLine("OnLogon" + value.toString());
}
public void onLogout(QuickFix.SessionID value)
{
Console.WriteLine("Log out Session" + value.toString());
}
public void toAdmin(QuickFix.Message value, QuickFix.SessionID session)
{
Console.WriteLine("Called Admin :" + value.ToString());
}
public void toApp(QuickFix.Message value, QuickFix.SessionID session)
{
Console.WriteLine("Called toApp :" + value.ToString());
}
public void fromAdmin(QuickFix.Message value, SessionID session)
{
Console.WriteLine("Got message from Admin" + value.ToString());
}
public void fromApp(QuickFix.Message value, SessionID session)
{
if (value is QuickFix44.ExecutionReport)
{
QuickFix44.ExecutionReport er = (QuickFix44.ExecutionReport)value;
ExecType et = (ExecType)er.getExecType();
if (et.getValue() == ExecType.FILL)
{
//TODO: implement code
}
}
Console.WriteLine("Got Execution Report from Server \n" + value.ToString());
}
}
I am learning zookeeper and trying out the Curator framework for service discoveries. However, I am facing a weird issue that I have difficulties to figure out. The problem is when I tried to register an instance via serviceDiscovery, the cacheChanged event of the serviceCache gets triggered three times. When I removed an instance, it is only triggered once, which is the expected behavior. Please see the code below:
public class DiscoveryExample {
private static String PATH = "/base";
static ServiceDiscovery<InstanceDetails> serviceDiscovery = null;
public static void main(String[] args) throws Exception {
CuratorFramework client = null;
try {
// this is the ip address of my VM
client = CuratorFrameworkFactory.newClient("192.168.149.129:2181", new ExponentialBackoffRetry(1000, 3));
client.start();
JsonInstanceSerializer<InstanceDetails> serializer = new JsonInstanceSerializer<InstanceDetails>(
InstanceDetails.class);
serviceDiscovery = ServiceDiscoveryBuilder.builder(InstanceDetails.class)
.client(client)
.basePath(PATH)
.serializer(serializer)
.build();
serviceDiscovery.start();
ServiceCache<InstanceDetails> serviceCache = serviceDiscovery.serviceCacheBuilder()
.name("product")
.build();
serviceCache.addListener(new ServiceCacheListener() {
#Override
public void stateChanged(CuratorFramework curator, ConnectionState state) {
// TODO Auto-generated method stub
System.out.println("State Changed to " + state.name());
}
// THIS IS THE PART GETS TRIGGERED MULTIPLE TIMES
#Override
public void cacheChanged() {
System.out.println("Cached Changed ");
List<ServiceInstance<InstanceDetails>> list = serviceCache.getInstances();
Iterator<ServiceInstance<InstanceDetails>> it = list.iterator();
while(it.hasNext()) {
System.out.println(it.next().getAddress());
}
}
});
serviceCache.start();
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("> ");
String line = in.readLine();
} finally {
CloseableUtils.closeQuietly(serviceDiscovery);
CloseableUtils.closeQuietly(client);
}
}
}
AND
public class RegisterApplicationServer {
final static String PATH = "/base";
static ServiceDiscovery<InstanceDetails> serviceDiscovery = null;
public static void main(String[] args) throws Exception {
CuratorFramework client = null;
try {
client = CuratorFrameworkFactory.newClient("192.168.149.129:2181", new ExponentialBackoffRetry(1000, 3));
client.start();
JsonInstanceSerializer<InstanceDetails> serializer = new JsonInstanceSerializer<InstanceDetails>(
InstanceDetails.class);
serviceDiscovery = ServiceDiscoveryBuilder.builder(InstanceDetails.class).client(client).basePath(PATH)
.serializer(serializer).build();
serviceDiscovery.start();
// SOME OTHER CODE THAT TAKES CARES OF USER INPUT...
} finally {
CloseableUtils.closeQuietly(serviceDiscovery);
CloseableUtils.closeQuietly(client);
}
}
private static void addInstance(String[] args, CuratorFramework client, String command,
ServiceDiscovery<InstanceDetails> serviceDiscovery) throws Exception {
// simulate a new instance coming up
// in a real application, this would be a separate process
if (args.length < 2) {
System.err.println("syntax error (expected add <name> <description>): " + command);
return;
}
StringBuilder description = new StringBuilder();
for (int i = 1; i < args.length; ++i) {
if (i > 1) {
description.append(' ');
}
description.append(args[i]);
}
String serviceName = args[0];
ApplicationServer server = new ApplicationServer(client, PATH, serviceName, description.toString());
server.start();
serviceDiscovery.registerService(server.getThisInstance());
System.out.println(serviceName + " added");
}
private static void deleteInstance(String[] args, String command, ServiceDiscovery<InstanceDetails> serviceDiscovery) throws Exception {
// in a real application, this would occur due to normal operation, a
// crash, maintenance, etc.
if (args.length != 2) {
System.err.println("syntax error (expected delete <name>): " + command);
return;
}
final String serviceName = args[0];
Collection<ServiceInstance<InstanceDetails>> set = serviceDiscovery.queryForInstances(serviceName);
Iterator<ServiceInstance<InstanceDetails>> it = set.iterator();
while (it.hasNext()) {
ServiceInstance<InstanceDetails> si = it.next();
if (si.getPayload().getDescription().indexOf(args[1]) != -1) {
serviceDiscovery.unregisterService(si);
}
}
System.out.println("Removed an instance of: " + serviceName);
}
}
I appriciate if anyone can please point out where I am doing wrong and maybe can share some good materials/examples so I can refer to. The official website and the examples on github does not help a lot.
I must to do chat server for my subject.
Where is my problem ?
I need to write UDP server class which should send and receive messages from users and transfer it to GUI
Second server should have methods for collect public keys of any user, changing owns ect. Additionally he should store this these keys
What do I have?
I have some code from first server, two Threads for sending and receiving messages and some code in client , but it isn't synchronized. And I don't know how to do it
This is some code from client main method: tfServer --> text field for getting this from user
InetAddress ia = InetAddress.getByName(tfServer.getText());
SenderThread sender = new SenderThread(ia,Integer.valueOf(tfPort.getText()));
sender.start();
ReceiverThread receiver = new ReceiverThread(sender.getSocket());
receiver.start();
First server code :
import java.net.* ;
public class Server {
int port;
private final static int PACKETSIZE = 100 ;
private boolean isStopped = false;
public Server(){
}
public Server(int port) {
this.port = port;
}
public void stop() {
this.isStopped = true;
}
public void start() {
try
{
DatagramSocket socket = new DatagramSocket(this.port) ;
System.out.println( "Serwer gotowy..." ) ;
if(!this.isStopped){
for( ;; ){
DatagramPacket packet = new DatagramPacket( new byte[PACKETSIZE], PACKETSIZE ) ;
socket.receive( packet ) ;
System.out.println( packet.getAddress() + " " + packet.getPort() + ": " + new String(packet.getData()) ) ;
socket.send( packet ) ;
}
}
}
catch( Exception e )
{
System.out.println( e ) ;
}
}
}
And class from first server to receive :
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
public class ReceiverThread extends Thread {
private DatagramSocket udpClientSocket;
private boolean stopped = false;
public ReceiverThread(DatagramSocket ds) throws SocketException {
this.udpClientSocket = ds;
}
public void halt() {
this.stopped = true;
}
public void run() {
byte[] receiveData = new byte[1024];
while (true) {
if (stopped)
return;
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
try {
udpClientSocket.receive(receivePacket);
String serverReply = new String(receivePacket.getData(), 0, receivePacket.getLength());
System.out.println("UDPClient: Response from Server: \"" + serverReply + "\"\n");
Thread.yield();
}
catch (IOException ex) {
System.err.println(ex);
}
}
}
}
Second class from first server to send messages :
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
public class ReceiverThread extends Thread {
private DatagramSocket udpClientSocket;
private boolean stopped = false;
public ReceiverThread(DatagramSocket ds) throws SocketException {
this.udpClientSocket = ds;
}
public void halt() {
this.stopped = true;
}
public void run() {
byte[] receiveData = new byte[1024];
while (true) {
if (stopped)
return;
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
try {
udpClientSocket.receive(receivePacket);
String serverReply = new String(receivePacket.getData(), 0, receivePacket.getLength());
System.out.println("UDPClient: Response from Server: \"" + serverReply + "\"\n");
Thread.yield();
}
catch (IOException ex) {
System.err.println(ex);
}
}
}
}
And server PKI :
public class ServerPKI {
}
I am trying to fetch unread email from Inbox(Outlook.office365.com) and also copy the read message to another folder. But I am getting some of the following issues.
Email is being re-read again, even if we mark the email as being
read programmatically.
Unable to copy an email to another folder even when we open the Inbox is RW(Read&Write) mode.
Attached my code as well.
package com.xyz.mail;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.Properties;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.MimeBodyPart;
import javax.mail.search.FlagTerm;
public class ReadEmail {
private static final String TRUE = "true";
private static final String MAIL_POP3_HOST = "mail.pop3.host";
private static final String MAIL_POP3_PORT = "mail.pop3.port";
private static final String MAIL_POP3_STARTTLS_ENABLE = "mail.pop3.starttls.enable";
private static final String MAIL_FOLDER_INBOX = "INBOX";
public static void check(String host, String storeType, String user, String password) throws Exception {
Store store = null;
Folder emailFolder = null;
try {
Properties properties = new Properties();
properties.put(MAIL_POP3_HOST, host);
properties.put(MAIL_POP3_PORT, "995");
properties.put(MAIL_POP3_STARTTLS_ENABLE, TRUE);
Session emailSession = Session.getDefaultInstance(properties);
// create the POP3 store object and connect with the pop server
store = emailSession.getStore(storeType);
store.connect(host, user, password);
emailFolder = store.getFolder(MAIL_FOLDER_INBOX);
emailFolder.open(Folder.READ_WRITE);
Message[] messages = emailFolder.search(new FlagTerm(new Flags(Flags.Flag.SEEN), false));
System.out.println("messages.length---" + messages.length);
if (messages.length == 0) {
System.out.println("No new messages found.");
} else {
for (int i = 0, len = messages.length; i < len; i++) {
Message message = messages[i];
boolean hasAttachments = hasAttachments(message);
if (hasAttachments) {
System.out.println(
"Email #" + (i + 1) + " with subject " + message.getSubject() + " has attachments.");
readAttachment(message);
} else {
System.out.println("Email #" + (i + 1) + " with subject " + message.getSubject()
+ " does not have any attachments.");
continue;
}
Folder copyFolder = store.getFolder("copyData");
if (copyFolder.exists()) {
System.out.println("copy messages...");
copyFolder.copyMessages(messages, emailFolder);
message.setFlag(Flags.Flag.DELETED, true);
}
}
}
} catch (Exception e) {
throw new Exception(e);
} finally {
emailFolder.close(false);
store.close();
}
}
public static void main(String[] args) throws Exception {
String host = "outlook.office365.com";
String username = "emailtest#xyz.com";
String password = "passw0rd{}";
String mailStoreType = "pop3s";
check(host, mailStoreType, username, password);
}
private static boolean hasAttachments(Message msg) throws Exception {
if (msg.isMimeType("multipart/mixed")) {
Multipart mp = (Multipart) msg.getContent();
if (mp.getCount() > 1) {
return true;
}
}
return false;
}
public static void readAttachment(Message message) throws Exception {
Multipart multiPart = (Multipart) message.getContent();
for (int i = 0; i < multiPart.getCount(); i++) {
MimeBodyPart part = (MimeBodyPart) multiPart.getBodyPart(i);
if (Part.ATTACHMENT.equalsIgnoreCase(part.getDisposition())) {
String destFilePath = "/home/user/Documents/" + part.getFileName();
System.out.println("Email attachement ---- " + destFilePath);
FileOutputStream output = new FileOutputStream(destFilePath);
InputStream input = part.getInputStream();
byte[] buffer = new byte[4096];
int byteRead;
while ((byteRead = input.read(buffer)) != -1) {
output.write(buffer, 0, byteRead);
}
output.close();
}
}
}
}
How to I fetch only unread email and copy the email to another folder.
change the protocal to imap and change the prot respecitvely ..using pop3 we can access only inbox that is the reason why you are unable to copy the mail to another folder
I am trying to integrate facebook chat using smack API.But i get an error telling authentication failed using digest md5...
Here s the code for authentication:
SASLAuthentication.registerSASLMechanism("DIGEST-MD5", SASLDigestMD5Mechanism.class);
SASLAuthentication.supportSASLMechanism("DIGEST-MD5", 0);
ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com",5222);
connection = new XMPPConnection(config);
config.setSASLAuthenticationEnabled(true);
connection.connect();
connection.login(userName, password);
below is the error i get wen i run it:
Exception in thread "main" SASL authentication failed using mechanism DIGEST-MD5:
at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentication.java:325)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:395)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:349)
at JabberSmackAPIFacebook.login(JabberSmackAPIFacebook.java:31)
at JabberSmackAPIFacebook.main(JabberSmackAPIFacebook.java:77)
I can successfully connect to gtalk but am having no success vit fb...
can sumone tel me wat s the problem
For me the solution was to not include the host part in the username when calling login() without DNS SRV and not agains the Google Talk services. This is also described in the ignite forums.
E.g.
connection.login("user#jabber.org", "password", "resource");
becomes
connection.login("user", "password", "resource");
There is a huge thread at Ignite that deals with this issue. You may want to take a look at it as there are several solutions for Java and Android given that seem to work.
I have succesfully connected using DIGEST-MD5 to facebook, the code you have posted looks good.
But still we need to check the contents of your SASLDigestMD5Mechanism class
I have used the class provided in here with success
http://community.igniterealtime.org/message/200878#200878
Also you have to notice that in the DIGEST-MD5 mechanism you have to login with your facebook username and not with the email address. By default the facebook accounts don't have a username, you have to create one fisrt, you can check that in here:
http://www.facebook.com/username/
MainActivity.java
public class MainActivity extends Activity {
XMPPConnection xmpp;
ArrayList<HashMap<String, String>> friends_list;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Session.openActiveSession(this, true, new StatusCallback() {
#Override
public void call(Session session, SessionState state, Exception exception) {
if ( session.isOpened()){
new testLoginTask().execute();
}
}
});
}
private class testLoginTask extends AsyncTask<Void, Void, Void>{
#Override
protected Void doInBackground(Void... params) {
testLogin();
return null;
}
}
private void testLogin(){
ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com", 5222);
config.setSASLAuthenticationEnabled(true);
config.setSecurityMode(ConnectionConfiguration.SecurityMode.enabled);
config.setDebuggerEnabled(true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
config.setTruststoreType("AndroidCAStore");
config.setTruststorePassword(null);
config.setTruststorePath(null);
} else {
config.setTruststoreType("BKS");
String path = System.getProperty("javax.net.ssl.trustStore");
if (path == null)
path = System.getProperty("java.home") + File.separator + "etc"
+ File.separator + "security" + File.separator
+ "cacerts.bks";
config.setTruststorePath(path);
}
xmpp = new XMPPConnection(config);
SASLAuthentication.registerSASLMechanism("X-FACEBOOK-PLATFORM",SASLXFacebookPlatformMechanism.class);
SASLAuthentication.supportSASLMechanism("X-FACEBOOK-PLATFORM", 0);
try {
xmpp.connect();
Log.i("XMPPClient","Connected to " + xmpp.getHost());
} catch (XMPPException e1) {
Log.i("XMPPClient","Unable to " + xmpp.getHost());
e1.printStackTrace();
}
try {
String apiKey = Session.getActiveSession().getApplicationId();
String sessionKey = Session.getActiveSession().getAccessToken();
String sessionSecret = "replace with your app secret key";
xmpp.login(apiKey + "|" + sessionKey, sessionSecret , "Application");
Log.i("XMPPClient"," its logined ");
Log.i("Connected",""+xmpp.isConnected());
if ( xmpp.isConnected()){
Presence presence = new Presence(Presence.Type.available);
xmpp.sendPacket(presence);
}
} catch (XMPPException e) {
e.printStackTrace();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
}
SASLXFacebookPlatformMechanism.java
public class SASLXFacebookPlatformMechanism extends SASLMechanism{
private static final String NAME = "X-FACEBOOK-PLATFORM";
private String apiKey = "";
private String accessToken = "";
/**
* Constructor.
*/
public SASLXFacebookPlatformMechanism(SASLAuthentication saslAuthentication) {
super(saslAuthentication);
}
#Override
protected void authenticate() throws IOException, XMPPException {
getSASLAuthentication().send(new AuthMechanism(NAME, ""));
}
#Override
public void authenticate(String apiKey, String host, String accessToken) throws IOException, XMPPException {
if (apiKey == null || accessToken == null) {
throw new IllegalArgumentException("Invalid parameters");
}
this.apiKey = apiKey;
this.accessToken = accessToken;
this.hostname = host;
String[] mechanisms = { "DIGEST-MD5" };
Map<String, String> props = new HashMap<String, String>();
this.sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, this);
authenticate();
}
#Override
public void authenticate(String username, String host, CallbackHandler cbh) throws IOException, XMPPException {
String[] mechanisms = { "DIGEST-MD5" };
Map<String, String> props = new HashMap<String, String>();
this.sc = Sasl.createSaslClient(mechanisms, null, "xmpp", host, props, cbh);
authenticate();
}
#Override
protected String getName() {
return NAME;
}
#Override
public void challengeReceived(String challenge) throws IOException {
byte[] response = null;
if (challenge != null) {
String decodedChallenge = new String(Base64.decode(challenge));
Map<String, String> parameters = getQueryMap(decodedChallenge);
String version = "1.0";
String nonce = parameters.get("nonce");
String method = parameters.get("method");
long callId = new GregorianCalendar().getTimeInMillis();
String composedResponse = "api_key="
+ URLEncoder.encode(apiKey, "utf-8") + "&call_id=" + callId
+ "&method=" + URLEncoder.encode(method, "utf-8")
+ "&nonce=" + URLEncoder.encode(nonce, "utf-8")
+ "&access_token="
+ URLEncoder.encode(accessToken, "utf-8") + "&v="
+ URLEncoder.encode(version, "utf-8");
response = composedResponse.getBytes("utf-8");
}
String authenticationText = "";
if (response != null) {
authenticationText = Base64.encodeBytes(response,
Base64.DONT_BREAK_LINES);
}
// Send the authentication to the server
getSASLAuthentication().send(new Response(authenticationText));
}
private Map<String, String> getQueryMap(String query) {
Map<String, String> map = new HashMap<String, String>();
String[] params = query.split("\\&");
for (String param : params) {
String[] fields = param.split("=", 2);
map.put(fields[0], (fields.length > 1 ? fields[1] : null));
}
return map;
}
}