booktrading / common

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Swing Bean Access thread

jadex.examples.booktrading.common

</title></head><body>

This package contains classes used by buyer and seller agents of the
booktrading scenario.

</body></html>
package jadex.examples.booktrading.common;

import jadex.adapter.fipa.AgentDescription;
import jadex.adapter.fipa.SearchConstraints;
import jadex.runtime.IGoal;
import jadex.runtime.Plan;

/**
*/
public class FindServiceProvidersPlan extends Plan
{
/**
* The body method is called on the
* instatiated plan instance from the scheduler.
*/
public void body()
{
  AgentDescription dfadesc = (AgentDescription)getParameter("description").getValue();
  SearchConstraints constraints = new SearchConstraints();
  constraints.setMaxResults(-1);

  // Use a subgoal to search at the df.
  IGoal ft = createGoal("df_search");
  ft.getParameter("description").setValue(dfadesc);
  ft.getParameter("constraints").setValue(constraints);
  dispatchSubgoalAndWait(ft);

  AgentDescription[] result = (AgentDescription[])ft.getParameterSet("result").getValues();
  if(result.length > 0)
  {
   for(int i = 0; i < result.length; i++)
   {
    getParameterSet("result").addValue(result[i].getName());
   }
  }
  else
  {
   fail();
  }
}
}
package jadex.examples.booktrading.common;

import jadex.runtime.*;
import jadex.util.SGUI;

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;

import java.awt.*;
import java.awt.event.*;
import java.text.*;
import java.util.*;
import java.util.List;

/**
* The gui allows to add and delete buy or sell orders and shows open and
* finished orders.
*/
public class Gui extends JFrame
{
//-------- attributes --------

private String itemlabel;
private String goalname;
private String addorderlabel;
private IExternalAccess agent;
private List orders = new ArrayList();
private JTable table;
private DefaultTableModel detailsdm;
private AbstractTableModel items = new AbstractTableModel()
{

  public int getRowCount()
  {
   return orders.size();
  }

  public int getColumnCount()
  {
   return 7;
  }

  public String getColumnName(int column)
  {
   switch(column)
   {
    case 0:
     return "Title";
    case 1:
     return "Start Price";
    case 2:
     return "Limit";
    case 3:
     return "Deadline";
    case 4:
     return "Execution Price";
    case 5:
     return "Execution Date";
    case 6:
     return "State";
    default:
     return "";
   }
  }

  public boolean isCellEditable(int row, int column)
  {
   return false;
  }

  public Object getValueAt(int row, int column)
  {
   Object value = null;
   Order order = (Order)orders.get(row);
   if(column == 0)
   {
    value = order.getTitle();
   }
   else if(column == 1)
   {
    value = new Integer(order.getStartPrice());
   }
   else if(column == 2)
   {
    value = new Integer(order.getLimit());
   }
   else if(column == 3)
   {
    value = order.getDeadline();
   }
   else if(column == 4)
   {
    value = order.getExecutionPrice();
   }
   else if(column == 5)
   {
    value = order.getExecutionDate();
   }
   else if(column == 6)
   {
    value = order.getState();
   }
   return value;
  }
};
private DateFormat dformat = new SimpleDateFormat("yyyy/MM/dd HH:mm");

//-------- constructors --------

/**
* Create a gui.
* @param agent The external access.
* @param buy The boolean indicating if buyer or seller gui.
*/
public Gui(final IExternalAccess agent, final boolean buy)
{
  super((buy ? "Buyer: " : "Seller: ") + agent.getAgentIdentifier().getName());
  this.agent = agent;
  if(buy)
  {
   itemlabel = " Books to buy ";
   goalname = "purchase_book";
   addorderlabel = "Add new purchase order";
  }
  else
  {
   itemlabel = " Books to sell ";
   goalname = "sell_book";
   addorderlabel = "Add new sell order";
  }

JPanel itempanel = new JPanel(new BorderLayout());
itempanel.setBorder(new TitledBorder(new EtchedBorder(), itemlabel));

  this.table = new JTable(items);
  table.setDefaultRenderer(Object.class, new DefaultTableCellRenderer()
  {
   public Component getTableCellRendererComponent(JTable table,
     Object value, boolean selected, boolean focus, int row,
     int column)
   {
    Component comp = super.getTableCellRendererComponent(table,
      value, selected, focus, row, column);
    setOpaque(true);
    if(column == 0)
    {
     setHorizontalAlignment(LEFT);
    }
    else
    {
     setHorizontalAlignment(RIGHT);
    }
    if(!selected)
    {
     Object state = items.getValueAt(row, 6);
     if(Order.DONE.equals(state))
     {
      comp.setBackground(new Color(211, 255, 156));
     }
     else if(Order.FAILED.equals(state))
     {
      comp.setBackground(new Color(255, 211, 156));
     }
     else
     {
      comp.setBackground(table.getBackground());
     }
    }
    if(value instanceof Date)
    {
     setValue(dformat.format(value));
    }
    return comp;
   }
  });
  table.setPreferredScrollableViewportSize(new Dimension(600, 120));

  JScrollPane scroll = new JScrollPane(table);
  itempanel.add(BorderLayout.CENTER, scroll);

  this.detailsdm = new DefaultTableModel(new String[]{"Negotiation Details"}, 0);
  JTable details = new JTable(detailsdm);
  details.setPreferredScrollableViewportSize(new Dimension(600, 120));

  JPanel dep = new JPanel(new BorderLayout());
  dep.add(BorderLayout.CENTER, new JScrollPane(details));

  JPanel south = new JPanel();
  // south.setBorder(new TitledBorder(new EtchedBorder(), " Control "));
  JButton add = new JButton("Add");
  final JButton remove = new JButton("Remove");
  final JButton edit = new JButton("Edit");
  add.setMinimumSize(remove.getMinimumSize());
  add.setPreferredSize(remove.getPreferredSize());
  edit.setMinimumSize(remove.getMinimumSize());
  edit.setPreferredSize(remove.getPreferredSize());
  south.add(add);
  south.add(remove);
  south.add(edit);
  remove.setEnabled(false);
  edit.setEnabled(false);

  JSplitPane splitter = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
  splitter.add(itempanel);
  splitter.add(dep);
  splitter.setOneTouchExpandable(true);
  //splitter.setDividerLocation();

  this.getContentPane().add(BorderLayout.CENTER, splitter);
  this.getContentPane().add(BorderLayout.SOUTH, south);

  agent.getBeliefbase().getBeliefSet("orders").addBeliefSetListener(new IBeliefSetListener()
  {
   public void beliefSetChanged(AgentEvent ae)
   {
    refresh();
   }

   public void factAdded(AgentEvent ae)
   {
    refresh();
   }

   public void factRemoved(AgentEvent ae)
   {
    refresh();
   }
  }, false);

  agent.getBeliefbase().getBeliefSet("negotiation_reports")
   .addBeliefSetListener(new IBeliefSetListener()
  {
   public void factAdded(AgentEvent ae)
   {
    //System.out.println("a fact was added");
    refreshDetails();
   }

   public void factRemoved(AgentEvent ae)
   {
    //System.out.println("a fact was removed");
    refreshDetails();
   }

   public void beliefSetChanged(AgentEvent ae)
   {
    //System.out.println("belset changed");
   }
  }, false);

  agent.addAgentListener(new IAgentListener()
  {
   public void agentTerminating(AgentEvent ae)
   {
    SwingUtilities.invokeLater(new Runnable()
    {
     public void run()
     {
      Gui.this.setVisible(false);
     }
    });
   }
  }, false);

  table.addMouseListener(new MouseAdapter()
  {
   public void mouseClicked(MouseEvent e)
   {
    refreshDetails();
   }
  } );

  final InputDialog dia = new InputDialog(buy);
  add.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent e)
   {
    while(dia.requestInput())
    {
     try
     {
      String title = dia.title.getText();
      int limit = Integer.parseInt(dia.limit.getText());
      int start = Integer.parseInt(dia.start.getText());
      Date deadline = dformat.parse(dia.deadline.getText());
      Order order = new Order(title, deadline, start, limit, buy);
      IGoal purchase = Gui.this.agent.createGoal(goalname);
      purchase.getParameter("order").setValue(order);
      Gui.this.agent.dispatchTopLevelGoal(purchase);
      orders.add(order);
      items.fireTableDataChanged();
      break;
     }
     catch(NumberFormatException e1)
     {
      JOptionPane.showMessageDialog(Gui.this, "Price limit must be integer.", "Input error", JOptionPane.ERROR_MESSAGE);
     }
     catch(ParseException e1)
     {
      JOptionPane.showMessageDialog(Gui.this, "Wrong date format, use YYYY/MM/DD hh:mm.", "Input error", JOptionPane.ERROR_MESSAGE);
     }
    }
   }
  });

  table.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  table.getSelectionModel().addListSelectionListener(new ListSelectionListener()
  {

   public void valueChanged(ListSelectionEvent e)
   {
    boolean selected = table.getSelectedRow() >= 0;
    remove.setEnabled(selected);
    edit.setEnabled(selected);
   }
  });

remove.addActionListener(new ActionListener()
{

   public void actionPerformed(ActionEvent e)
   {
    int row = table.getSelectedRow();
    if(row >= 0 && row < orders.size())
    {
     Order order = (Order)orders.remove(row);
     items.fireTableRowsDeleted(row, row);
     IGoal[] goals = Gui.this.agent.getGoalbase().getGoals(goalname);
     for(int i = 0; i < goals.length; i++)
     {
      if(order.equals(goals[i].getParameter("order").getValue()))
      {
       goals[i].drop();
       break;
      }
     }
    }
   }
  });

  final InputDialog edit_dialog = new InputDialog(buy);
  edit.addActionListener(new ActionListener()
  {

   public void actionPerformed(ActionEvent e)
   {
    int row = table.getSelectedRow();
    if(row >= 0 && row < orders.size())
    {
     Order order = (Order)orders.get(row);
     edit_dialog.title.setText(order.getTitle());
     edit_dialog.limit.setText(Integer.toString(order.getLimit()));
     edit_dialog.start.setText(Integer.toString(order.getStartPrice()));
     edit_dialog.deadline.setText(dformat.format(order.getDeadline()));

     while(edit_dialog.requestInput())
     {
      try
      {
       String title = edit_dialog.title.getText();
       int limit = Integer.parseInt(edit_dialog.limit.getText());
       int start = Integer.parseInt(edit_dialog.start.getText());
       Date deadline = dformat.parse(edit_dialog.deadline.getText());
       order.setTitle(title);
       order.setLimit(limit);
       order.setStartPrice(start);
       order.setDeadline(deadline);
       items.fireTableDataChanged();
       IGoal[] goals = Gui.this.agent.getGoalbase().getGoals(goalname);
       for(int i = 0; i < goals.length; i++)
       {
        if(order.equals(goals[i].getParameter("order").getValue()))
        {
         goals[i].drop();
         break;
        }
       }
       IGoal goal = Gui.this.agent.createGoal(goalname);
       goal.getParameter("order").setValue(order);
       Gui.this.agent.dispatchTopLevelGoal(goal);
       break;
      }
      catch(NumberFormatException e1)
      {
       JOptionPane.showMessageDialog(Gui.this, "Price limit must be integer.", "Input error", JOptionPane.ERROR_MESSAGE);
      }
      catch(ParseException e1)
      {
       JOptionPane.showMessageDialog(Gui.this, "Wrong date format, use YYYY/MM/DD hh:mm.", "Input error", JOptionPane.ERROR_MESSAGE);
      }
     }
    }
   }
  });

  refresh();
  pack();
  setLocation(SGUI.calculateMiddlePosition(this));
  setVisible(true);
  addWindowListener(new WindowAdapter()
  {
   public void windowClosing(WindowEvent e)
   {
    agent.killAgent();
   }
  });
}

//-------- methods --------

/**
* Method to be called when goals may have changed.
*/
public void refresh()
{
  // Use invoke later as refresh() is called from plan thread.
  SwingUtilities.invokeLater(new Runnable()
  {
   public void run()
   {
    Order[] aorders = (Order[])agent.getBeliefbase().getBeliefSet("orders").getFacts();
    for(int i = 0; i < aorders.length; i++)
    {
     if(!orders.contains(aorders[i]))
     {
      orders.add(aorders[i]);
     }
    }
    items.fireTableDataChanged();
   }
  });
}

/**
* Refresh the details panel.
*/
public void refreshDetails()
{
  int sel = table.getSelectedRow();
  if(sel!=-1)
  {
   Order order = (Order)orders.get(sel);
   IExpression exp = agent.getExpressionbase().getExpression("search_reports");
   List res = (List)exp.execute("$order", order);
   //for(int i=0; i<res.size(); i++)
   // System.out.println(""+i+res.get(i));

   while(detailsdm.getRowCount()>0)
    detailsdm.removeRow(0);
   for(int i=0; i<res.size(); i++)
    detailsdm.addRow(new Object[]{res.get(i)});
    //System.out.println(""+i+res.get(i));
  }
}

//-------- inner classes --------

/**
* The input dialog.
*/
private class InputDialog extends JDialog
{
  private JComboBox orders = new JComboBox();
  private JTextField title = new JTextField(20);
  private JTextField limit = new JTextField(20);
  private JTextField start = new JTextField(20);
  private JTextField deadline = new JTextField(dformat.format(new Date(System.currentTimeMillis() + 300000)));
  private boolean aborted;

  InputDialog(boolean buy)
  {
   super(Gui.this, addorderlabel, true);

   if(buy)
   {
    orders.addItem(new Order("All about agents", new Date(), 100, 120, buy));
    orders.addItem(new Order("All about web services", new Date(), 40, 60, buy));
    orders.addItem(new Order("Harry Potter", new Date(), 5, 10, buy));
    orders.addItem(new Order("Agents in the real world", new Date(), 30, 65, buy));
   }
   else
   {
    orders.addItem(new Order("All about agents", new Date(), 130, 110, buy));
    orders.addItem(new Order("All about web services", new Date(), 50, 30, buy));
    orders.addItem(new Order("Harry Potter", new Date(), 15, 9, buy));
    orders.addItem(new Order("Agents in the real world", new Date(), 100, 60, buy));
   }

   JPanel center = new JPanel(new GridBagLayout());
   center.setBorder(new EmptyBorder(5, 5, 5, 5));
   getContentPane().add(BorderLayout.CENTER, center);

   JLabel label;
   Dimension labeldim = new JLabel("Preset orders ").getPreferredSize();
   int row = 0;
   GridBagConstraints leftcons = new GridBagConstraints(0, 0, 1, 1, 0, 0,
     GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(1, 1, 1, 1), 0, 0);
   GridBagConstraints rightcons = new GridBagConstraints(1, 0, GridBagConstraints.REMAINDER, 1, 1, 0,
     GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL, new Insets(1, 1, 1, 1), 0, 0);

   leftcons.gridy = rightcons.gridy = row++;
   label = new JLabel("Preset orders");
   label.setMinimumSize(labeldim);
   label.setPreferredSize(labeldim);
   center.add(label, leftcons);
   center.add(orders, rightcons);

   leftcons.gridy = rightcons.gridy = row++;
   label = new JLabel("Title");
   label.setMinimumSize(labeldim);
   label.setPreferredSize(labeldim);
   center.add(label, leftcons);
   center.add(title, rightcons);

   leftcons.gridy = rightcons.gridy = row++;
   label = new JLabel("Start price");
   label.setMinimumSize(labeldim);
   label.setPreferredSize(labeldim);
   center.add(label, leftcons);
   center.add(start, rightcons);

   leftcons.gridy = rightcons.gridy = row++;
   label = new JLabel("Price limit");
   label.setMinimumSize(labeldim);
   label.setPreferredSize(labeldim);
   center.add(label, leftcons);
   center.add(limit, rightcons);

   leftcons.gridy = rightcons.gridy = row++;
   label = new JLabel("Deadline");
   label.setMinimumSize(labeldim);
   label.setPreferredSize(labeldim);
   center.add(label, leftcons);
   center.add(deadline, rightcons);

   JPanel south = new JPanel();
   // south.setBorder(new TitledBorder(new EtchedBorder(), " Control "));
   this.getContentPane().add(BorderLayout.SOUTH, south);

   JButton ok = new JButton("Ok");
   JButton cancel = new JButton("Cancel");
   ok.setMinimumSize(cancel.getMinimumSize());
   ok.setPreferredSize(cancel.getPreferredSize());
   south.add(ok);
   south.add(cancel);

   ok.addActionListener(new ActionListener()
   {
    public void actionPerformed(ActionEvent e)
    {
     aborted = false;
     setVisible(false);
    }
   });
   cancel.addActionListener(new ActionListener()
   {
    public void actionPerformed(ActionEvent e)
    {
     setVisible(false);
    }
   });

   orders.addActionListener(new ActionListener()
   {
    public void actionPerformed(ActionEvent e)
    {
     Order order = (Order)orders.getSelectedItem();
     title.setText(order.getTitle());
     limit.setText("" + order.getLimit());
     start.setText("" + order.getStartPrice());
    }
   });
  }

  public boolean requestInput()
  {
   this.deadline.setText(dformat.format(new Date(System.currentTimeMillis() + 300000)));
   this.aborted = true;
   this.pack();
   this.setLocation(SGUI.calculateMiddlePosition(Gui.this, this));
   this.setVisible(true);
   return !aborted;
  }
}
}

/**
* The dialog for showing details about negotiations.
* /
class NegotiationDetailsDialog extends JDialog
{
/**
* Create a new dialog.
* @param owner The owner.
* /
public NegotiationDetailsDialog(Frame owner, List details)
{
  super(owner);
  DefaultTableModel tadata = new DefaultTableModel(new String[]{"Negotiation Details"}, 0);
  JTable table = new JTable(tadata);
  for(int i=0; i<details.size(); i++)
   tadata.addRow(new Object[]{details.get(i)});

  JButton ok = new JButton("ok");
  ok.addActionListener(new ActionListener()
  {
   public void actionPerformed(ActionEvent e)
   {
    NegotiationDetailsDialog.this.setVisible(false);
    NegotiationDetailsDialog.this.dispose();
   }
  });
  JPanel south = new JPanel(new FlowLayout(FlowLayout.CENTER));
  south.add(ok);

  this.getContentPane().add("Center", table);
  this.getContentPane().add("South", south);
  this.setSize(400,200);
  this.setLocation(SGUI.calculateMiddlePosition(this));
  this.setVisible(true);
}
}*/package jadex.examples.booktrading.common;

import java.text.SimpleDateFormat;
import java.util.Date;

import jadex.runtime.IGoal;

/**
* A negotiation report contains user-relevant data about negotiations,
* i.e. the order and details about the negotiation and the time.
*/
public class NegotiationReport
{
//-------- attributes --------

/** The order. */
protected Order order;

/** The report. */
protected String details;

/** The negotiation time. */
protected long time;

//-------- constructors --------

/**
* Create a new report.
*/
public NegotiationReport(Order order, String details, long time)
{
  this.order = order;
  this.details = details;
  this.time = time;
}

//-------- methods --------

/**
* Get the order.
* @return The order.
*/
public Order getOrder()
{
return order;
}

/**
* Set the order.
* @param order The order to set.
*/
public void setOrder(Order order)
{
this.order = order;
}

/**
* Get the details.
* @return The details.
*/
public String getDetails()
{
return details;
}

/**
* Set the details.
* @param details The details to set.
*/
public void setDetails(String details)
{
this.details = details;
}

/**
* Get the negotiation time.
* @return The time.
*/
public long getTime()
{
return time;
}

/**
* Set the negotiation time.
* @param time The time to set.
*/
public void setTime(long time)
{
this.time = time;
}

/**
* Get the string representation.
* @return The string representation.
*/
public String toString()
{
  //return "NegotiationReport("+order+", "+details+")";
  SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy.'-'HH:mm:ss ': '");
  return sdf.format(new Date(time))+order+" - "+details;
}
}
package jadex.examples.booktrading.common;

import jadex.util.SimplePropertyChangeSupport;

import java.beans.PropertyChangeListener;
import java.util.Date;

/**
* The order for purchasing or selling books.
*/
public class Order
{
//-------- constants --------

/** The state open. */
public static final String OPEN = "open";

/** The state done. */
public static final String DONE = "done";

/** The state failed. */
public static final String FAILED = "failed";

//-------- attributes --------

/** The book title. */
protected String title;

/** The deadline. */
protected Date deadline;

/** The limit price. */
protected int limit;

/** The startprice. */
protected int startprice;

/** The starttime. */
protected long starttime;

/** The execution price. */
protected Integer exeprice;

/** The execution date. */
protected Date exedate;

/** The flag indicating if it is a buy (or sell) order. */
protected boolean buyorder;

/** The helper object for bean events. */
public SimplePropertyChangeSupport pcs;

//-------- constructors --------

/**
* Create a new order.
*
* @param title The title.
* @param deadline The deadline.
* @param limit The limit.
* @param start The start price
*/
public Order(String title, Date deadline, int start, int limit, boolean buyorder)
{
  this.title = title;
  this.deadline = deadline;
  this.startprice = start;
  this.limit = limit;
  this.buyorder = buyorder;
  this.starttime = System.currentTimeMillis();
  this.pcs = new SimplePropertyChangeSupport(this);
}

//-------- methods --------

/**
* Get the title.
*
* @return The title.
*/
public String getTitle()
{
return title;
}

/**
* Set the title.
*
* @param title The title.
*/
public void setTitle(String title)
{
  String oldtitle = this.title;
  this.title = title;
  pcs.firePropertyChange("title", oldtitle, title);
}

/**
* Get the deadline.
*
* @return The deadline.
*/
public Date getDeadline()
{
return deadline;
}

/**
* Set the deadline.
*
* @param deadline The deadline.
*/
public void setDeadline(Date deadline)
{
  Date olddeadline = this.deadline;
  this.deadline = deadline;
  pcs.firePropertyChange("deadline", olddeadline, deadline);
}

/**
* Get the limit.
*
* @return The limit.
*/
public int getLimit()
{
return limit;
}

/**
* Set the limit.
*
* @param limit The limit.
*/
public void setLimit(int limit)
{
  int oldlimit = this.limit;
  this.limit = limit;
  pcs.firePropertyChange("limit", oldlimit, limit);
}

/**
* Getter for startprice
*
* @return Returns startprice.
*/
public int getStartPrice()
{
return startprice;
}

/**
* Setter for startprice.
*
* @param startprice The Order.java value to set
*/
public void setStartPrice(int startprice)
{
  int oldstartprice = this.startprice;
  this.startprice = startprice;
  pcs.firePropertyChange("startPrice", oldstartprice, startprice);
}

/**
* Get the start time.
*
* @return The start time.
*/
public long getStartTime()
{
return starttime;
}

/**
* Set the start time.
*
* @param starttime The start time.
*/
public void setStartTime(long starttime)
{
  long oldstarttime = this.starttime;
  this.starttime = starttime;
  pcs.firePropertyChange("startTime", new Long(oldstarttime), new Long(starttime));
}

/**
* Get the execution price.
*
* @return The execution price.
*/
public Integer getExecutionPrice()
{
return exeprice;
}

/**
* Set the execution price.
*
* @param exeprice The execution price.
*/
public void setExecutionPrice(Integer exeprice)
{
  Integer oldexeprice = this.exeprice;
  this.exeprice = exeprice;
  pcs.firePropertyChange("executionPrice", oldexeprice, exeprice);
}

/**
* Get the execution date.
*
* @return The execution date.
*/
public Date getExecutionDate()
{
return exedate;
}

/**
* Set the execution date.
*
* @param exedate The execution date.
*/
public void setExecutionDate(Date exedate)
{
  Date oldexedate = this.exedate;
  this.exedate = exedate;
  pcs.firePropertyChange("executionDate", oldexedate, exedate);
}

/**
* Test if it is a buyorder.
*
* @return True, if buy order.
*/
public boolean isBuyOrder()
{
return buyorder;
}

/**
* Set the order type.
*
* @param buyorder True for buyorder.
*/
public void setBuyOrder(boolean buyorder)
{
  boolean oldbuyorder = this.buyorder;
  this.buyorder = buyorder;
  pcs.firePropertyChange("buyOrder", oldbuyorder ? Boolean.TRUE : Boolean.FALSE, buyorder ? Boolean.TRUE : Boolean.FALSE);
}

/**
* Get the order state.
*
* @return The order state.
*/
public String getState()
{
  String state = FAILED;
  if(exedate != null)
  {
   state = DONE;
  }
  else if(System.currentTimeMillis() < deadline.getTime())
  {
   state = OPEN;
  }
  return state;
}

/**
* Get a string representation of the order.
*/
public String toString()
{
  StringBuffer sbuf = new StringBuffer();
  sbuf.append(isBuyOrder() ? "Buy '" : "Sell '");
  sbuf.append(getTitle());
  sbuf.append("'");
  return sbuf.toString();
}

//-------- property methods --------

/**
* Add a PropertyChangeListener to the listener list.
* The listener is registered for all properties.
*
* @param listener The PropertyChangeListener to be added.
*/
public void addPropertyChangeListener(PropertyChangeListener listener)
{
pcs.addPropertyChangeListener(listener);
}

/**
* Remove a PropertyChangeListener from the listener list.
* This removes a PropertyChangeListener that was registered
* for all properties.
*
* @param listener The PropertyChangeListener to be removed.
*/
public void removePropertyChangeListener(PropertyChangeListener listener)
{
pcs.removePropertyChangeListener(listener);
}
}

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booktrading / manager | booktrading / buyer

2011-03-29 23:17
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分类:企业架构
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