contacttestclient1.java

Java源码 Java源码

package cmp1bean;

import javax.naming.*;
import java.util.Properties;
import javax.rmi.PortableRemoteObject;

public class ContactTestClient1 extends Object {
  private static final String ERROR_NULL_REMOTE = "Remote interface reference is null.  It must be created by calling one of the Home interface methods first.";
  private static final int MAX_OUTPUT_LINE_LENGTH = 100;
  private boolean logging = true;
  private ContactHome contactHome = null;
  private Contact contact = null;

  //Construct the EJB test client
  public ContactTestClient1() {
    initialize();
  }

  public void initialize() {
    long startTime = 0;
    if (logging) {
      log("Initializing bean access.");
      startTime = System.currentTimeMillis();
    }

    try {
      //get naming context
      Context context = getInitialContext();

      //look up jndi name
      Object ref = context.lookup("Contact");
      //look up jndi name and cast to Home interface
      contactHome = (ContactHome) PortableRemoteObject.narrow(ref, ContactHome.class);
      System.out.println("find a record whose key is:"+"Hongbin");
                       contact=contactHome.findByPrimaryKey("Zhang");
               System.out.println("getFirst(): "+contact.getFirst()+
                                          " getLast(): "+contact.getLast()+
                                          " getEmail(): "+contact.getEmail());

      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded initializing local bean access through Local Home interface.");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed initializing bean access.");
      }
      e.printStackTrace();
    }
  }

  private Context getInitialContext() throws Exception {
    String url = "t3://localhost:7001";
    String user = null;
    String password = null;
    Properties properties = null;
    try {
      properties = new Properties();
      properties.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
      properties.put(Context.PROVIDER_URL, url);
      if (user != null) {
        properties.put(Context.SECURITY_PRINCIPAL, user);
        properties.put(Context.SECURITY_CREDENTIALS, password == null ? "" : password);
      }

      return new InitialContext(properties);
    }
    catch(Exception e) {
      log("Unable to connect to WebLogic server at " + url);
      log("Please make sure that the server is running.");
      throw e;
    }
  }

  //----------------------------------------------------------------------------
  // Methods that use Home interface methods to generate a Remote interface reference
  //----------------------------------------------------------------------------

  public Contact create(String first, String last, String email) {
    long startTime = 0;
    if (logging) {
      log("Calling create(" + first + ", " + last + ", " + email + ")");
      startTime = System.currentTimeMillis();
    }
    try {
      contact = contactHome.create(first, last, email);
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: create(" + first + ", " + last + ", " + email + ")");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: create(" + first + ", " + last + ", " + email + ")");
      }
      e.printStackTrace();
    }

    if (logging) {
      log("Return value from create(" + first + ", " + last + ", " + email + "): " + contact + ".");
    }
    return contact;
  }

  public Contact create(String last) {
    long startTime = 0;
    if (logging) {
      log("Calling create(" + last + ")");
      startTime = System.currentTimeMillis();
    }
    try {
      contact = contactHome.create(last);
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: create(" + last + ")");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: create(" + last + ")");
      }
      e.printStackTrace();
    }

    if (logging) {
      log("Return value from create(" + last + "): " + contact + ".");
    }
    return contact;
  }

  public Contact findByPrimaryKey(String primaryKey) {
    long startTime = 0;
    if (logging) {
      log("Calling findByPrimaryKey(" + primaryKey + ")");
      startTime = System.currentTimeMillis();
    }
    try {
      contact = contactHome.findByPrimaryKey(primaryKey);
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: findByPrimaryKey(" + primaryKey + ")");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: findByPrimaryKey(" + primaryKey + ")");
      }
      e.printStackTrace();
    }

    if (logging) {
      log("Return value from findByPrimaryKey(" + primaryKey + "): " + contact + ".");
    }
    return contact;
  }

  //----------------------------------------------------------------------------
  // Methods that use Remote interface methods to access data through the bean
  //----------------------------------------------------------------------------

  public String getFirst() {
    String returnValue = "";

    if (contact == null) {
      System.out.println("Error in getFirst(): " + ERROR_NULL_REMOTE);
      return returnValue;
    }

    long startTime = 0;
    if (logging) {
      log("Calling getFirst()");
      startTime = System.currentTimeMillis();
    }

    try {
      returnValue = contact.getFirst();
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: getFirst()");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: getFirst()");
      }
      e.printStackTrace();
    }

    if (logging) {
      log("Return value from getFirst(): " + returnValue + ".");
    }
    return returnValue;
  }

  public void setFirst(String first) {
    if (contact == null) {
      System.out.println("Error in setFirst(): " + ERROR_NULL_REMOTE);
      return ;
    }

    long startTime = 0;
    if (logging) {
      log("Calling setFirst(" + first + ")");
      startTime = System.currentTimeMillis();
    }

    try {
      contact.setFirst(first);
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: setFirst(" + first + ")");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: setFirst(" + first + ")");
      }
      e.printStackTrace();
    }
  }

  public String getLast() {
    String returnValue = "";

    if (contact == null) {
      System.out.println("Error in getLast(): " + ERROR_NULL_REMOTE);
      return returnValue;
    }

    long startTime = 0;
    if (logging) {
      log("Calling getLast()");
      startTime = System.currentTimeMillis();
    }

    try {
      returnValue = contact.getLast();
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: getLast()");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: getLast()");
      }
      e.printStackTrace();
    }

    if (logging) {
      log("Return value from getLast(): " + returnValue + ".");
    }
    return returnValue;
  }

  public String getEmail() {
    String returnValue = "";

    if (contact == null) {
      System.out.println("Error in getEmail(): " + ERROR_NULL_REMOTE);
      return returnValue;
    }

    long startTime = 0;
    if (logging) {
      log("Calling getEmail()");
      startTime = System.currentTimeMillis();
    }

    try {
      returnValue = contact.getEmail();
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: getEmail()");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: getEmail()");
      }
      e.printStackTrace();
    }

    if (logging) {
      log("Return value from getEmail(): " + returnValue + ".");
    }
    return returnValue;
  }

  public void setEmail(String email) {
    if (contact == null) {
      System.out.println("Error in setEmail(): " + ERROR_NULL_REMOTE);
      return ;
    }

    long startTime = 0;
    if (logging) {
      log("Calling setEmail(" + email + ")");
      startTime = System.currentTimeMillis();
    }

    try {
      contact.setEmail(email);
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: setEmail(" + email + ")");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: setEmail(" + email + ")");
      }
      e.printStackTrace();
    }
  }

  //----------------------------------------------------------------------------
  // Utility Methods
  //----------------------------------------------------------------------------

  private void log(String message) {
    if (message == null) {
      System.out.println("-- null");
      return ;
    }
    if (message.length() > MAX_OUTPUT_LINE_LENGTH) {
      System.out.println("-- " + message.substring(0, MAX_OUTPUT_LINE_LENGTH) + " ...");
    }
    else {
      System.out.println("-- " + message);
    }
  }
  //Main method

  public static void main(String[] args) {
    ContactTestClient1 client = new ContactTestClient1();
    // Use the client object to call one of the Home interface wrappers
    // above, to create a Remote interface reference to the bean.
    // If the return value is of the Remote interface type, you can use it
    // to access the remote interface methods.  You can also just use the
    // client object to call the Remote interface wrappers.
  }
}