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It's SWING interface to starts/stops WEB-app on embedded A-Jetty.
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/*
BSD 2-Clause License

Copyright (c) 2019, Beigesoft™
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.beigesoft.ajetty;

import java.util.Date;
import java.net.URI;
import java.net.URL;
import java.text.NumberFormat;

import java.awt.GridLayout;
import java.awt.Desktop;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

import javax.swing.JFormattedTextField;
import javax.swing.JPasswordField;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.ImageIcon;

/**
 * 
 * BootSwing launches A-Jetty as host 127.0.0.1 on opted port
 * and uses HTTPS connector,
 * for only WEB-application in webapp folder
 * For internationalization it expects overridden MessagesAjetty.properties
 * file.
 * 
 *
 * @author Yury Demidenko
 */
public class BootSwing extends JFrame implements ActionListener, IBootFace {

  //Interface:
  /**
   * Label A-Jetty instance number.
   **/
  private JLabel lbAjettyIn;

  /**
   * A-Jetty instance number.
   **/
  private JFormattedTextField ftfAjettyIn;

  /**
   * Label keystore password.
   **/
  private JLabel lbKeystorePw;

  /**
   * Keystore password.
   **/
  private JPasswordField pfKeystorePw;

  /**
   * Label keystore password conformation.
   **/
  private JLabel lbKeystorePwc;

  /**
   * A-Jetty instance password conformation.
   **/
  private JPasswordField pfKeystorePwc;

  /**
   * Label port.
   **/
  private JLabel lbPort;

  /**
   * Combo-box port.
   **/
  private JComboBox cmbPort;

  /**
   * Button start.
   **/
  private JButton btStart;

  /**
   * Button refresh.
   **/
  private JButton btRefresh;

  /**
   * Button stop.
   **/
  private JButton btStop;

  /**
   * Button launch browser.
   **/
  private JButton btBrowse;

  /**
   * Main boot strap.
   **/
  private BootMain mainBootStrap;

  /**
   * Starts interface.
   * @throws Exception any
   **/
  public final void startInterface() throws Exception {
    try {
      setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
      // Interface:
      URL iconURL = getClass().getResource("/favicon.png");
      ImageIcon icon = new ImageIcon(iconURL);
      setIconImage(icon.getImage());
      if (this.mainBootStrap.getIsDebug()) {
        setTitle("DEBUGGING IS ON!!!");
      } else {
        setTitle(this.mainBootStrap.getMsg("title"));
      }
      GridLayout layout = new GridLayout(12, 1);
      layout.setVgap(10);
      setLayout(layout);
      this.lbAjettyIn = new JLabel(this.mainBootStrap.getMsg("AJettyIn"));
      add(this.lbAjettyIn);
      this.ftfAjettyIn = new JFormattedTextField(NumberFormat
        .getIntegerInstance());
      add(this.ftfAjettyIn);
      this.lbKeystorePw = new JLabel(this.mainBootStrap.getMsg("KeystorePw"));
      add(this.lbKeystorePw);
      this.pfKeystorePw = new JPasswordField();
      add(this.pfKeystorePw);
      this.lbKeystorePwc = new JLabel(this.mainBootStrap.getMsg("KeystorePwc"));
      add(this.lbKeystorePwc);
      this.pfKeystorePwc = new JPasswordField();
      add(this.pfKeystorePwc);
      this.lbPort = new JLabel(this.mainBootStrap.getMsg("port"));
      add(this.lbPort);
      this.cmbPort = new JComboBox();
      Integer p8443 = 8443;
      this.cmbPort.addItem(p8443);
      this.cmbPort.addItem(new Integer(8444));
      this.cmbPort.addItem(new Integer(8445));
      this.cmbPort.addItem(new Integer(8446));
      this.cmbPort.addItem(new Integer(8447));
      this.cmbPort.setSelectedItem(p8443);
      add(this.cmbPort);
      this.btStart = new JButton(this.mainBootStrap.getMsg("start"));
      this.btStart.addActionListener(this);
      add(this.btStart);
      this.btStop = new JButton(this.mainBootStrap.getMsg("stop"));
      this.btStop.addActionListener(this);
      add(this.btStop);
      this.btRefresh = new JButton(this.mainBootStrap.getMsg("refresh"));
      this.btRefresh.addActionListener(this);
      add(this.btRefresh);
      this.btBrowse = new JButton();
      this.btBrowse.addActionListener(this);
      add(this.btBrowse);
      setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
      addWindowListener(windowListener);
      Dimension screenDimension = java.awt.Toolkit
        .getDefaultToolkit().getScreenSize();
      int width = Math.min(Double.valueOf(screenDimension.getWidth())
        .intValue(), 400);
      int height = Math.min(Double.valueOf(screenDimension.getHeight())
        .intValue(), 500);
      setPreferredSize(new Dimension(width, height));
      pack();
      setLocationRelativeTo(null);
      setVisible(true);
      refreshUi();
    } catch (Exception e) {
      this.mainBootStrap.getLogger()
        .error(null, BootSwing.class, null, e);
      throw e;
    }
  }

  @Override
  public final void actionPerformed(final ActionEvent pAe) {
    try {
      if (pAe.getSource() == this.btStart
        && !this.mainBootStrap.getBootEmbed().getIsStarted()) {
        if (!this.mainBootStrap.getIsActionPerforming()) {
          if (this.mainBootStrap.getIsDebug()) {
            setTitle("DEBUGGING IS ON!!!");
          } else {
            setTitle(this.mainBootStrap.getMsg("title"));
          }
          this.mainBootStrap.setIsActionPerforming(true);
          if (!this.mainBootStrap.getIsKeystoreCreated()) {
            Long ajl = (Long) ftfAjettyIn.getValue();
            if (ajl != null) {
              try {
                this.mainBootStrap.setAjettyIn(Integer.parseInt(ajl
                  .toString()));
              } catch (Exception e) {
                e.printStackTrace();
              }
            }
          }
          if (this.mainBootStrap.getAjettyIn() == null) {
            JOptionPane.showMessageDialog(this, this.mainBootStrap
              .getMsg("EnterAjettyNumber"), this.mainBootStrap.getMsg("error"),
                JOptionPane.ERROR_MESSAGE);
            this.mainBootStrap.setIsActionPerforming(false);
            return;
          }
          this.mainBootStrap.setKsPassword(this.pfKeystorePw.getPassword());
          this.mainBootStrap.setKsPasswordConf(this
            .pfKeystorePwc.getPassword());
          this.mainBootStrap.setPort((Integer) this.cmbPort.getSelectedItem());
          this.mainBootStrap.startAjetty();
          refreshUi();
        }
      } else if (pAe.getSource() == this.btStop
        && this.mainBootStrap.getBootEmbed().getIsStarted()) {
        if (!this.mainBootStrap.getIsActionPerforming()) {
          if (this.mainBootStrap.getIsDebug()) {
            setTitle("DEBUGGING IS ON!!!");
          } else {
            setTitle(this.mainBootStrap.getMsg("title"));
          }
          this.mainBootStrap.setIsActionPerforming(true);
          this.mainBootStrap.setLastActionStartDate(new Date().getTime());
          this.mainBootStrap.stopAjetty();
          refreshUi();
        }
      } else if (pAe.getSource() == this.btRefresh) {
        if (this.mainBootStrap.getIsDebug()) {
          setTitle("DEBUGGING IS ON!!!");
        } else {
          setTitle(this.mainBootStrap.getMsg("title"));
        }
        if (this.mainBootStrap.getIsActionPerforming()) {
          // it was only time when server has started but
          // interface not respond (Class was synchronized)
          // The reason was cause either A-Jetty - did not exit from "start"
          // (so class was locked by start thread)
          // or Swing Interface itself get frozen
          long currDate = new Date().getTime();
          if (currDate - this.mainBootStrap.getLastActionStartDate() > 120000) {
            this.mainBootStrap.setIsActionPerforming(false);
            this.mainBootStrap.getLogger()
              .error(null, BootSwing.class, "Frozen!!!");
          }
        }
        refreshUi();
      } else if (pAe.getSource() == this.btBrowse) {
        Desktop.getDesktop()
          .browse(new URI(this.btBrowse.getText()));
      }
    } catch (Exception ex) {
      setTitle(this.mainBootStrap.getMsg("err_see_starter_log"));
      this.mainBootStrap.setIsActionPerforming(false);
      this.mainBootStrap.getLogger()
        .error(null, BootSwing.class, null, ex);
    }
  }

  /**
   * Show error message.
   * @param pError message
   **/
  @Override
  public final void showError(final String pError) {
    JOptionPane.showMessageDialog(this, pError,
      this.mainBootStrap.getMsg("error"), JOptionPane.ERROR_MESSAGE);
  }

  /**
   * Refresh user interface.
   **/
  @Override
  public final void refreshUi() {
    if (this.mainBootStrap.getIsActionPerforming()) {
      this.btBrowse.setText(this.mainBootStrap.getMsg("wait"));
      this.cmbPort.setEnabled(false);
      this.btStart.setEnabled(false);
      this.btStop.setEnabled(false);
      this.btBrowse.setEnabled(false);
      this.ftfAjettyIn.setEnabled(false);
      this.pfKeystorePwc.setEnabled(false);
    } else {
      if (this.mainBootStrap.getBootEmbed().getIsStarted()) {
        this.btBrowse.setText("https://localhost:"
          + this.cmbPort.getSelectedItem() + "/bsa"
            + this.cmbPort.getSelectedItem());
        this.pfKeystorePw.setEnabled(false);
        this.ftfAjettyIn.setEnabled(false);
        this.pfKeystorePwc.setEnabled(false);
        this.cmbPort.setEnabled(false);
        this.btStart.setEnabled(false);
        this.btStop.setEnabled(true);
        this.btBrowse.setEnabled(true);
      } else {
        if (this.mainBootStrap.getIsKeystoreCreated()) {
          this.ftfAjettyIn.setEnabled(false);
          this.pfKeystorePwc.setEnabled(false);
          this.ftfAjettyIn.setText(this.mainBootStrap.getAjettyIn().toString());
        } else {
          this.ftfAjettyIn.setEnabled(true);
          this.pfKeystorePwc.setEnabled(true);
        }
        this.btBrowse.setText(this.mainBootStrap.getMsg("stopped"));
        this.pfKeystorePw.setEnabled(true);
        this.cmbPort.setEnabled(true);
        this.btStart.setEnabled(true);
        this.btStop.setEnabled(false);
        this.btBrowse.setEnabled(false);
      }
    }
  }

  //Inner classes:
  /**
   * Stop A-Jetty on close.
   **/
  private WindowListener windowListener = new WindowAdapter() {

    @Override
    public void windowClosing(final WindowEvent e) {
      if (BootSwing.this.mainBootStrap
        .getIsActionPerforming()) {
        long currDate = new Date().getTime();
        if (currDate - BootSwing
          .this.mainBootStrap.getLastActionStartDate() > 120000) {
          BootSwing.this.mainBootStrap
            .setIsActionPerforming(false);
          BootSwing.this.mainBootStrap.getLogger()
            .error(null, BootStrapCli.class, "Frozen!!!");
        }
      }
      if (!BootSwing.this.mainBootStrap
        .getIsActionPerforming()) {
        if (BootSwing.this
          .mainBootStrap.getBootEmbed().getServer() != null) {
          try {
            BootSwing.this
              .mainBootStrap.getBootEmbed().stopServer();
            BootSwing.this.refreshUi();
          } catch (Exception ex) {
            BootSwing.this.mainBootStrap.getLogger()
              .error(null, BootSwing.class, null, ex);
          }
        }
        BootSwing.this.setVisible(false);
        BootSwing.this.dispose();
      }
    }
  };

  //Simple getters and setters:
  /**
   * Getter for lbPort.
   * @return JLabel
   **/
  public final JLabel getLbPort() {
    return this.lbPort;
  }

  /**
   * Getter for cmbPort.
   * @return JComboBox
   **/
  public final JComboBox getCmbPort() {
    return this.cmbPort;
  }

  /**
   * Getter for btStart.
   * @return JButton
   **/
  public final JButton getBtStart() {
    return this.btStart;
  }

  /**
   * Getter for btStop.
   * @return JButton
   **/
  public final JButton getBtStop() {
    return this.btStop;
  }

  /**
   * Getter for btBrowse.
   * @return JButton
   **/
  public final JButton getBtBrowse() {
    return this.btBrowse;
  }

  /**
   * Getter for btRefresh.
   * @return JButton
   **/
  public final JButton getBtRefresh() {
    return this.btRefresh;
  }

  /**
   * Getter for windowListener.
   * @return WindowListener
   **/
  public final WindowListener getWindowListener() {
    return this.windowListener;
  }

  /**
   * Getter for mainBootStrap.
   * @return BootMain
   **/
  public final BootMain getMainBootStrap() {
    return this.mainBootStrap;
  }

  /**
   * Setter for mainBootStrap.
   * @param pMainBootStrap reference
   **/
  public final void setMainBootStrap(
    final BootMain pMainBootStrap) {
    this.mainBootStrap = pMainBootStrap;
  }
}