Java example source code file (LaunchTool.java)

This example Java source code file (LaunchTool.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

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Java - Java tags/keywords

actionlistener, argrep, awt, bad, border, boxlayout, connector, container, event, gui, jbutton, jdialog, jpanel, launchtool, map, override, string, stringargrep, swing, util

The LaunchTool.java Java example source code

/*
 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */


package com.sun.tools.example.debug.gui;

import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;

import com.sun.jdi.*;
import com.sun.jdi.connect.*;

import com.sun.tools.example.debug.bdi.*;

class LaunchTool {

    private final ExecutionManager runtime;

    private abstract class ArgRep {
        final Connector.Argument arg;
        final JPanel panel;

        ArgRep(Connector.Argument arg) {
            this.arg = arg;
            panel = new JPanel();
            Border etched = BorderFactory.createEtchedBorder();
            Border titled = BorderFactory.createTitledBorder(etched,
                                      arg.description(),
                                      TitledBorder.LEFT, TitledBorder.TOP);
            panel.setBorder(titled);
        }

        abstract String getText();

        boolean isValid() {
            return arg.isValid(getText());
        }

        boolean isSpecified() {
            String value = getText();
            return (value != null && value.length() > 0) ||
                !arg.mustSpecify();
        }

        void install() {
            arg.setValue(getText());
        }
    }

    private class StringArgRep extends ArgRep {
        final JTextField textField;

        StringArgRep(Connector.Argument arg, JPanel comp) {
            super(arg);
            textField = new JTextField(arg.value(), 50 );
            textField.setBorder(BorderFactory.createLoweredBevelBorder());

            panel.add(new JLabel(arg.label(), SwingConstants.RIGHT));
            panel.add(textField); // , BorderLayout.CENTER);
            comp.add(panel);
        }

        @Override
        String getText() {
            return textField.getText();
        }
    }

    private class BooleanArgRep extends ArgRep {
        final JCheckBox check;

        BooleanArgRep(Connector.BooleanArgument barg, JPanel comp) {
            super(barg);
            check = new JCheckBox(barg.label());
            check.setSelected(barg.booleanValue());
            panel.add(check);
            comp.add(panel);
        }

        @Override
        String getText() {
            return ((Connector.BooleanArgument)arg)
                           .stringValueOf(check.getModel().isSelected());
        }
    }


    private LaunchTool(ExecutionManager runtime) {
        this.runtime = runtime;
    }

    private Connector selectConnector() {
        final JDialog dialog = new JDialog();
        Container content = dialog.getContentPane();
        final JPanel radioPanel = new JPanel();
        final ButtonGroup radioGroup = new ButtonGroup();
        VirtualMachineManager manager = Bootstrap.virtualMachineManager();
        List<Connector> all = manager.allConnectors();
        Map<ButtonModel, Connector> modelToConnector = new HashMap(all.size(), 0.5f);

        dialog.setModal(true);
        dialog.setTitle("Select Connector Type");
        radioPanel.setLayout(new BoxLayout(radioPanel, BoxLayout.Y_AXIS));
        for (Connector connector : all) {
            JRadioButton radio = new JRadioButton(connector.description());
            modelToConnector.put(radio.getModel(), connector);
            radioPanel.add(radio);
            radioGroup.add(radio);
        }
        content.add(radioPanel);

        final boolean[] oked = {false};
        JPanel buttonPanel = okCancel( dialog, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent event) {
                if (radioGroup.getSelection() == null) {
                    JOptionPane.showMessageDialog(dialog,
                                    "Please select a connector type",
                                    "No Selection",
                                     JOptionPane.ERROR_MESSAGE);
                } else {
                    oked[0] = true;
                    dialog.setVisible(false);
                    dialog.dispose();
                }
            }
        } );
        content.add(BorderLayout.SOUTH, buttonPanel);
        dialog.pack();
        dialog.setVisible(true);

        return oked[0] ?
            modelToConnector.get(radioGroup.getSelection()) :
            null;
    }

    private void configureAndConnect(final Connector connector) {
        final JDialog dialog = new JDialog();
        final Map<String, Connector.Argument> args = connector.defaultArguments();

        dialog.setModal(true);
        dialog.setTitle("Connector Arguments");
        Container content = dialog.getContentPane();
        JPanel guts = new JPanel();
        Border etched = BorderFactory.createEtchedBorder();
        BorderFactory.createTitledBorder(etched,
                                connector.description(),
                                TitledBorder.LEFT, TitledBorder.TOP);
        guts.setBorder(etched);
        guts.setLayout(new BoxLayout(guts, BoxLayout.Y_AXIS));

        //        guts.add(new JLabel(connector.description()));

        final List<ArgRep> argReps = new ArrayList(args.size());
        for (Connector.Argument arg : args.values()) {
            ArgRep ar;
            if (arg instanceof Connector.BooleanArgument) {
                ar = new BooleanArgRep((Connector.BooleanArgument)arg, guts);
            } else {
                ar = new StringArgRep(arg, guts);
            }
            argReps.add(ar);
        }
        content.add(guts);

        JPanel buttonPanel = okCancel( dialog, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent event) {
                for (ArgRep ar : argReps) {
                    if (!ar.isSpecified()) {
                        JOptionPane.showMessageDialog(dialog,
                                    ar.arg.label() +
                                         ": Argument must be specified",
                                    "No argument", JOptionPane.ERROR_MESSAGE);
                        return;
                    }
                    if (!ar.isValid()) {
                        JOptionPane.showMessageDialog(dialog,
                                    ar.arg.label() +
                                         ": Bad argument value: " +
                                         ar.getText(),
                                    "Bad argument", JOptionPane.ERROR_MESSAGE);
                        return;
                    }
                    ar.install();
                }
                try {
                    if (runtime.explictStart(connector, args)) {
                        dialog.setVisible(false);
                        dialog.dispose();
                    } else {
                        JOptionPane.showMessageDialog(dialog,
                           "Bad arguments values: See diagnostics window.",
                           "Bad arguments", JOptionPane.ERROR_MESSAGE);
                    }
                } catch (VMLaunchFailureException exc) {
                        JOptionPane.showMessageDialog(dialog,
                           "Launch Failure: " + exc,
                           "Launch Failed",JOptionPane.ERROR_MESSAGE);
                }
            }
        } );
        content.add(BorderLayout.SOUTH, buttonPanel);
        dialog.pack();
        dialog.setVisible(true);
    }

    private JPanel okCancel(final JDialog dialog, ActionListener okListener) {
        JPanel buttonPanel = new JPanel();
        JButton ok = new JButton("OK");
        JButton cancel = new JButton("Cancel");
        buttonPanel.add(ok);
        buttonPanel.add(cancel);
        ok.addActionListener(okListener);
        cancel.addActionListener( new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent event) {
                dialog.setVisible(false);
                dialog.dispose();
            }
        } );
        return buttonPanel;
    }

    static void queryAndLaunchVM(ExecutionManager runtime)
                                         throws VMLaunchFailureException {
        LaunchTool lt = new LaunchTool(runtime);
        Connector connector = lt.selectConnector();
        if (connector != null) {
            lt.configureAndConnect(connector);
        }
    }
}