utilities/progress_bar/progress_bar.java

Refer to the Progress Bar Example.

// ****************************************************************************
// $Id$
//
// Copyright (C) 2008-2014, Roman Lygin. All rights reserved.
// Copyright (C) 2014-2025, CADEX. All rights reserved.
//
// This file is part of the Manufacturing Toolkit software.
//
// You may use this file under the terms of the BSD license as follows:
//
// 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
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// POSSIBILITY OF SUCH DAMAGE.
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// ****************************************************************************
 
import cadex.*;
import cadex.ModelAlgo.*;
import cadex.ModelData.*;
 
public class progress_bar {
    static {
        try {
            System.loadLibrary("CadExMTK");
        } catch (UnsatisfiedLinkError e) {
            System.err.println("Native code library failed to load.\n" + e);
            System.exit(1);
        }
    }
 
    public static void main(String[] args) {
        String aKey = MTKLicenseKey.Value();
 
        // Activate the license (aKey must be defined in LicenseKey.java)
        if (!LicenseManager.Activate(aKey)) {
            System.out.println("Failed to activate Manufacturing Toolkit license.");
            System.exit(1);
        }
 
        if (args.length != 1) {
            System.out.println("Usage: " + " <input_file>, where:");
            System.out.println("    <input_file>  is a name of the file to be read");
            System.exit(1);
        }
 
        String aSource = args[0];
 
        Model aModel = new Model();
 
        ProgressBarObserver anObserver = new ProgressBarObserver();
        anObserver.SetAllNotifyingThreads();
 
        try (ProgressStatus aStatus = new ProgressStatus()) {
            // Register an Observer to progress status
            aStatus.Register(anObserver);
 
            // The top scope occupies the whole progress status range
            try (ProgressScope aTopScope = new ProgressScope(aStatus))
            {
                // 50% of TopScope for file importing
                try (ProgressScope aReaderScope = new ProgressScope(aTopScope, 50))
                {
                    ModelReader aReader = new ModelReader();
                    // Connect progress status object
                    aReader.SetProgressStatus(aStatus);
                    aReader.Read(new UTF16String(aSource), aModel);
                }
 
                if (!aModel.IsEmpty() && !aStatus.WasCanceled()) {
                    try (ProgressScope aMesherScope = new ProgressScope(aTopScope, -1)) // The remaining 50% of TopScope for meshing
                    {
                        MeshGenerator aMesher = new MeshGenerator();
                        // Connect progress status object
                        aMesher.SetProgressStatus(aStatus);
                        aMesher.Generate(aModel);
                    }
                }
            }
        }
        // Observer will be automatically unregistered from progress status on destruction (end of the "try" scope).
    }
}
 
class ProgressBarObserver extends ProgressStatus.Observer {
    @Override
    public void ChangedValue(ProgressStatus theInfo) {
        System.out.println(theInfo.Value());
    }
 
    @Override
    public void Completed(ProgressStatus theInfo) {
        System.out.println(theInfo.Value() + ": complete!");
    }
}