| import java.rmi.RemoteException; |
| import java.net.InetAddress; |
| import java.net.MalformedURLException; |
| import java.rmi.NotBoundException; |
| import java.util.HashMap; |
| import java.util.Vector; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import javax.naming.NamingException; |
| import javax.naming.InitialContext; |
| import javax.naming.Context; |
| import javax.naming.NameNotFoundException; |
| import javax.naming.NamingException; |
| import javax.rmi.PortableRemoteObject; |
| |
| import org.omg.CORBA.Any; |
| import org.omg.CORBA.ORB; |
| |
| public class HelloClient implements Runnable { |
| static final int MAX_RETRY = 10; |
| static final int ONE_SECOND = 1000; |
| private static boolean responseReceived; |
| |
| public static void main(String args[]) throws Exception { |
| executeRmiClientCall(); |
| } |
| |
| @Override |
| public void run() { |
| try { |
| executeRmiClientCall(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| throw new RuntimeException(e); |
| } |
| } |
| |
| |
| public static boolean isResponseReceived () { |
| return responseReceived; |
| } |
| |
| public static void executeRmiClientCall() throws Exception { |
| Context ic; |
| Object objref; |
| HelloInterface helloSvc; |
| String response; |
| int retryCount = 0; |
| |
| Test test = new Test(); |
| System.out.println("HelloClient.main: enter ..."); |
| while (retryCount < MAX_RETRY) { |
| try { |
| ic = new InitialContext(); |
| System.out.println("HelloClient.main: HelloService lookup ..."); |
| // STEP 1: Get the Object reference from the Name Service |
| // using JNDI call. |
| objref = ic.lookup("HelloService"); |
| System.out.println("HelloClient: Obtained a ref. to Hello server."); |
| |
| // STEP 2: Narrow the object reference to the concrete type and |
| // invoke the method. |
| helloSvc = (HelloInterface) PortableRemoteObject.narrow(objref, |
| HelloInterface.class); |
| System.out.println("HelloClient: Invoking on remote server with ConcurrentHashMap parameter"); |
| ConcurrentHashMap <String, String> testConcurrentHashMap = new ConcurrentHashMap<String, String>(); |
| response = helloSvc.sayHelloWithHashMap(testConcurrentHashMap); |
| System.out.println("HelloClient: Server says: " + response); |
| if (!response.contains("Hello with hashMapSize ==")) { |
| System.out.println("HelloClient: expected response not received"); |
| throw new RuntimeException("Expected Response Hello with hashMapSize == 0 not received"); |
| } |
| responseReceived = true; |
| break; |
| } catch (NameNotFoundException nnfEx) { |
| System.err.println("NameNotFoundException Caught .... try again"); |
| retryCount++; |
| try { |
| Thread.sleep(ONE_SECOND); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| continue; |
| } catch (Exception e) { |
| System.err.println("Exception " + e + "Caught"); |
| e.printStackTrace(); |
| throw new RuntimeException(e); |
| } |
| } |
| System.err.println("HelloClient terminating "); |
| try { |
| Thread.sleep(5000); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |