facadetestclient2.java

1.DATABASE目录下存放的是网上购书系统的数据库脚本文件以及相应的jdatastore数据库文件。 2.bookstoreejb目录下存放的工程对应于网上购书系统的ejb部分。 3.shop

package bookstoreejb;

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

public class facadeTestClient2 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 facadeHome facadeHomeObject = null;
  private facade facadeObject = null;

  //Construct the EJB test client
  public facadeTestClient2() {
    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("facade");
      //look up jndi name and cast to Home interface
      facadeHomeObject = (facadeHome) PortableRemoteObject.narrow(ref, facadeHome.class);
      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://zhaoqiang: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 facade create() {
    long startTime = 0;
    if (logging) {
      log("Calling create()");
      startTime = System.currentTimeMillis();
    }
    try {
      facadeObject = facadeHomeObject.create();
      if (logging) {
        long endTime = System.currentTimeMillis();
        log("Succeeded: create()");
        log("Execution time: " + (endTime - startTime) + " ms.");
      }
    }
    catch(Exception e) {
      if (logging) {
        log("Failed: create()");
      }
      e.printStackTrace();
    }

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

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

  public Collection getAllBook() {
    Collection returnValue = null;

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

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

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

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

  public Object getBookByName(String bookName) {
    Object returnValue = null;

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

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

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

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

  public void sendMessage(Order order) {
    if (facadeObject == null) {
      System.out.println("Error in sendMessage(): " + ERROR_NULL_REMOTE);
      return ;
    }

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

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

  public Collection getAllOrder() {
    Collection returnValue = null;

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

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

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

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

  public void deleteOrder(String orderid) {
    if (facadeObject == null) {
      System.out.println("Error in deleteOrder(): " + ERROR_NULL_REMOTE);
      return ;
    }

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

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

  public void executeRemoteCallsWithDefaultArguments() {
    if (facadeObject == null) {
      System.out.println("Error in executeRemoteCallsWithDefaultArguments(): " + ERROR_NULL_REMOTE);
      return ;
    }
    getAllBook();
    getBookByName("");
    sendMessage(null);
    getAllOrder();
    deleteOrder("");
  }

  //----------------------------------------------------------------------------
  // 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) {
    facadeTestClient2 client = new facadeTestClient2();
    client.create();
    client.deleteOrder("orderid1");
// 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.
  }
}