org.springframework.amqp.rabbit.stocks.ui.StockPanel.java Source code

Introduction

Here is the source code for org.springframework.amqp.rabbit.stocks.ui.StockPanel.java

Source

/*
 * Copyright 2002-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.amqp.rabbit.stocks.ui;

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.text.DecimalFormat;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.amqp.rabbit.stocks.domain.Quote;
import org.springframework.amqp.rabbit.stocks.domain.Stock;
import org.springframework.amqp.rabbit.stocks.domain.TradeResponse;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.jgoodies.forms.layout.CellConstraints;
import com.jgoodies.forms.layout.FormLayout;

/**
 * A typical poor mans UI to drive the application.  
 * 
 * @author Mark Pollack
 * @author Mark Fisher
 */
@SuppressWarnings("serial")
public class StockPanel extends JPanel {

    private static Log log = LogFactory.getLog(StockPanel.class);

    private JTextField tradeRequestTextField;
    private JButton tradeRequestButton;
    private JTextArea marketDataTextArea;
    private StockController stockController;

    private DecimalFormat frmt = new DecimalFormat("$0.00");

    public StockPanel(StockController controller) {
        this.stockController = controller;
        controller.setStockPanel(this);
        this.setBorder(BorderFactory.createTitledBorder("Stock Form"));

        FormLayout formLayout = new FormLayout("pref, 150dlu", // columns
                "pref, fill:100dlu:grow"); // rows
        setLayout(formLayout);
        CellConstraints c = new CellConstraints();

        tradeRequestButton = new JButton("Send Trade Request");
        add(tradeRequestButton, c.xy(1, 1));

        tradeRequestTextField = new JTextField("");
        add(tradeRequestTextField, c.xy(2, 1));

        add(new JLabel("Market Data"), c.xy(1, 2));

        marketDataTextArea = new JTextArea();
        JScrollPane sp = new JScrollPane(marketDataTextArea);
        sp.setSize(200, 300);

        add(sp, c.xy(2, 2));

        tradeRequestTextField.addFocusListener(new FocusListener() {
            public void focusLost(FocusEvent e) {
            }

            public void focusGained(FocusEvent e) {
                tradeRequestTextField.setText("");
                tradeRequestTextField.setForeground(Color.BLACK);
            }
        });

        tradeRequestButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                sendTradeRequest();
            }
        });
    }

    private void sendTradeRequest() {
        try {
            stockController.sendTradeRequest(tradeRequestTextField.getText());
            tradeRequestTextField.setForeground(Color.GRAY);
            tradeRequestTextField.setText("Request Pending...");
            log.info("Sent trade request.");
        } catch (Exception ex) {
            tradeRequestTextField.setForeground(Color.RED);
            tradeRequestTextField.setText("Required Format: 100 TCKR");
        }
    }

    public static void main(String[] a) {
        ConfigurableApplicationContext context = new ClassPathXmlApplicationContext("client-bootstrap-config.xml");
        StockController controller = context.getBean(StockController.class);
        JFrame f = new JFrame("Rabbit Stock Demo");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //TODO consider @Configurable
        f.add(new StockPanel(controller));
        f.pack();
        f.setVisible(true);
    }

    public void displayQuote(final Quote quote) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                Stock stock = quote.getStock();
                marketDataTextArea.append(stock.getTicker() + " " + quote.getPrice() + "\n");
            }
        });
    }

    public void update(final TradeResponse tradeResponse) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                tradeRequestTextField.setForeground(Color.GREEN);
                tradeRequestTextField.setText("Confirmed. " + tradeResponse.getTicker() + " "
                        + frmt.format(tradeResponse.getPrice().doubleValue()));
            }
        });
    }

}