client.java

数据挖掘的工具代码（包含fp-tree,appriory

   * the warning message from the server will be thrown.
   * @param request  a vector includes a group's name and a vector of users.
   * @return   The messages returned from server.
   */
  public static Vector addGroupToUser(Vector request)
    throws ClientErrorException, ClientWarningException
  {
    try 
      {
	out.reset();
	out.writeObject("ADDGRPTOUSRS");
	//System.out.println("addGroupToUser: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("addGroupToUser: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	if (status.equals(strERROR))
	  throw new ClientErrorException((String)response.get(0));
	else //if (status.equals(strWARNING))
	  throw new ClientWarningException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Add group to user" + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Add group to user " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Set groups for an user.
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @exception ClientWarningException   The operation can be completed,
   * the warning message from the server will be thrown.
   * @param request  a vector includes an user's name and a vector of groups.
   * @return   The messages returned from server.
   */
  public static Vector setGroupsForUser(Vector request)
    throws ClientErrorException, ClientWarningException
  {
    try 
      {
	out.reset();
	out.writeObject("SETGRPSFORUSR");
	//System.out.println("setGroupsForUser: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("setGroupsForUser: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	if (status.equals(strERROR))
	  throw new ClientErrorException((String)response.get(0));
	else //if (status.equals(strWARNING))
	  throw new ClientWarningException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Set groups for user" + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Set groups for user " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Remove group access for an user.
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @param request  a vector includes a group's name and its users.
   * @return   The messages returned from server.
   */
  public static Vector deleteGroupFromUser(Vector request)
    throws ClientErrorException
  {
    try 
      {
	out.reset();
	out.writeObject("DELGRPFROMUSRS");
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	throw new ClientErrorException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Delete group from user" + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Delete group from user " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Add an user to the system.
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @exception ClientWarningException   The operation can be completed,
   * the warning message from the server will be thrown.
   * @param request  a vector includes an user's name, password, permission and groups to which the user belong.
   * @return   The messages returned from server.
   */
  public static Vector addUser(Vector request)
    throws ClientErrorException, ClientWarningException
  {
    try 
      {
	out.reset();
	out.writeObject("ADDUSR");
	//System.out.println("addUser: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("addUser: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	if (status.equals(strERROR))
	  throw new ClientErrorException((String)response.get(0));
	else //if (status.equals(strWARNING))
	  throw new ClientWarningException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Add user" + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Add user " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Delete an user from the system
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @param request  a vector includes an user's name.
   * @return   The messages returned from server.
   */
  public static Vector deleteUser(Vector request)
    throws ClientErrorException
  {
    try 
      {
	out.reset();
	out.writeObject("DELUSR");
	//System.out.println("deleteUser: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("addUser: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	throw new ClientErrorException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Delete user" + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Delete user " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Modify an user's name
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @param request  a vector includes an user name and a new name.
   * @return   The messages returned from server.
   */
  public static Vector modifyUserName(Vector request)
    throws ClientErrorException
  {
    try 
      {
	out.reset();
	out.writeObject("CHGNAMEUSR");
	//System.out.println("modifyUserName: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("modifyUserName: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	throw new ClientErrorException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Modify user name" + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Modify user name" + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Modify an user's password
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @param request  a vector includes an user name and password.
   * @return   The messages returned from server.
   */
  public static Vector modifyUserPassword(Vector request)
    throws ClientErrorException
  {
    try 
      {
	out.reset();
	out.writeObject("CHGPASSW");
	//System.out.println("modifyUserPassword: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("modifyUserPassword: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	throw new ClientErrorException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Modify user password " + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Modify user password " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Modify an user's privilege
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @param request  a vector includes an user name and permission.
   * @return   The messages returned from server.
   */
  public static Vector modifyUserPrivlg(Vector request)
    throws ClientErrorException
  {
    try 
      {
	out.reset();
	out.writeObject("CHGPERM");
	//System.out.println("modifyUserPrivlg: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("modifyUserPrivlg: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	throw new ClientErrorException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Modify user permission " + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Modify user permission " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Add an user to a group
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @exception ClientWarningException   The operation can be completed,
   * the warning message from the server will be thrown.
   * @param request  a vector includes an user name and a vector of groups.
   * @return   The messages returned from server.
   */
  public static Vector addUserToGroup(Vector request)
    throws ClientErrorException, ClientWarningException
  {
    try 
      {
	out.reset();
	out.writeObject("ADDUSRTOGRPS");
	//System.out.println("addUserToGroup: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("addUserToGroup: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	if (status.equals(strERROR))
	  throw new ClientErrorException((String)response.get(0));
	else //if (status.equals(strWARNING))
	  throw new ClientWarningException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Add user to group " + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Add user to group " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Set user(s) for a group
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @exception ClientWarningException   The operation can be completed,
   * the warning message from the server will be thrown.
   * @param request  a vector includes an group name and a vector of users.
   * @return   The messages returned from server.
   */
  public static Vector setUsersForGroup(Vector request)
    throws ClientErrorException, ClientWarningException
  {
    try 
      {
	out.reset();
	out.writeObject("SETUSRSFORGRP");
	//System.out.println("setUsersForGroup: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("setUsersForGroup: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	if (status.equals(strERROR))
	  throw new ClientErrorException((String)response.get(0));
	else //if (status.equals(strWARNING))
	  throw new ClientWarningException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Set users for group " + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Set users for group " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  /**
   * Remove an user from a group
   * @exception ClientErrorException   The operation can not be completed,
   * the error message from the server will be thrown.
   * @exception ClientWarningException   The operation can be completed,
   * the warning message from the server will be thrown.
   * @param request  a vector includes an user name and a vector of groups.
   * @return   The messages returned from server.
   */
  public static Vector deleteUserFromGroup(Vector request)
    throws ClientErrorException, ClientWarningException
  {
    try 
      {
	out.reset();
	out.writeObject("DELUSRFROMGRPS");
	//System.out.println("deleteUserFromGroup: request: " + request.toString());
	out.writeObject(request);
	out.flush();

	status = (String)in.readObject();
	//System.out.println("deleteUserFromGroup: status: " + status);

	if (status.equals(strOK))
	  return null;

	response = (Vector)in.readObject();
	if (status.equals(strERROR))
	  throw new ClientErrorException((String)response.get(0));
	else //if (status.equals(strWARNING))
	  throw new ClientWarningException((String)response.get(0));
      }
    catch (IOException e)
      {
	//System.err.println("Client: Delete user from group " + e);
	throw new ClientErrorException(e.toString());
      }
    catch (ClassNotFoundException e)
      {
	//System.err.println("Client: Delete user froms group " + e);
	throw new ClientErrorException(e.toString());
      }
  }

  public static Vector benchmark (Vector benchInput)
    throws ClientErrorException