managerimpl.java

《JAVA分布式程序设计》一书的源代码。

// package Bank;

import java.util.*;

/**
<p>
<ul>
<li> <b>Java Class</b> Bank._example_Manager
<li> <b>Source File</b> Bank/_example_Manager.java
<li> <b>IDL Source File</b> Bank.idl
<li> <b>IDL Absolute Name</b> ::Bank::Manager
<li> <b>Repository Identifier</b> IDL:Bank/Manager:1.0
</ul>
<b>IDL definition:</b>
<pre>
    interface Manager {
      ::Bank::Account createAccount(
        in string customerName
      );
      void deleteAccount(
        in ::Bank::Account acct
      );
    };
</pre>
</p>
*/

/**
 * @(#) ManagerImpl.java
 * @author: Qusay H. Mahmoud
 * Part of this code was generated by the idl2java compiler
 */


public class ManagerImpl extends Bank._ManagerImplBase {
  private Dictionary _accounts = new Hashtable();
  private Random rand = new Random();

  /** Construct a persistently named object. */
  public ManagerImpl(java.lang.String name) {
    super(name);
  }
  /** Construct a transient object. */
  public ManagerImpl() {
    super();
  }
  /**
  <p>
  Operation: <b>::Bank::Manager::createAccount</b>.
  <pre>
    ::Bank::Account createAccount(
      in string customerName
    );
  </pre>
  </p>
  */
  public Bank.Account createAccount(
    java.lang.String customerName
  ) {
    // IMPLEMENT: Operation
    Bank.Account acct = (Bank.Account) _accounts.get(customerName);
    if (acct == null) {
      float bal = Math.abs(rand.nextInt()) % 100000 / 100f;
      acct = new AccountImpl(bal);
      _boa().obj_is_ready(acct);
      System.out.println("Account created.");
      _accounts.put(customerName, acct);
    }
    return acct;
  }
  /**
  <p>
  Operation: <b>::Bank::Manager::deleteAccount</b>.
  <pre>
    void deleteAccount(
      in ::Bank::Account acct
    );
  </pre>
  </p>
  */
  public void deleteAccount(
    Bank.Account acct
  ) {
    // IMPLEMENT: Operation
    Bank.Account account = (Bank.Account) _accounts.get(acct);
    if (account == null) {
       System.out.println("No such account exists");
    } else {
       _accounts.remove(account);
       System.out.println("deleted");
    }

  }
}