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/*
* Copyright (c) 2019 F(X)yz
* Copyright (c) 2010, 2014, Oracle and/or its affiliates.
* All rights reserved. Use is subject to license terms.
*
* This file is available and licensed under the following license:
*
* 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.
* - Neither the name of Oracle Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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
* OWNER 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.fxyz3d.importers;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Objects;
import java.util.ServiceLoader;
/**
* Base Importer for all supported 3D file formats
*/
public final class Importer3D {
/**
* Get array of extension filters for supported file formats.
*
* @return array of extension filters for supported file formats.
*/
public static String[] getSupportedFormatExtensionFilters() {
return new String[]{"*.ma", "*.ase", "*.obj", "*.fxml", "*.dae"};
}
/**
* Load a 3D file, always loaded as TriangleMesh.
*
* @param fileUrl The url of the 3D file to load
* @return The loaded Node which could be a MeshView or a Group
* @throws IOException if issue loading file
*/
public static Model3D load(URL fileUrl) throws IOException {
return loadIncludingAnimation(fileUrl, false);
}
/**
* Load a 3D file, load as a PolygonMesh if the loader supports.
*
* @param fileUrl The url of the 3D file to load
* @return The loaded Node which could be a MeshView or a Group
* @throws IOException if issue loading file
*/
public static Model3D loadAsPoly(URL fileUrl) throws IOException {
return loadIncludingAnimation(fileUrl, true);
}
/**
* Load a 3D file.
*
* @param fileUrl The url of the 3D file to load
* @param asPolygonMesh When true load as a PolygonMesh if the loader supports
* @return The loaded Node which could be a MeshView or a Group and the Timeline animation
* @throws IOException if issue loading file
*/
private static Model3D loadIncludingAnimation(URL fileUrl, boolean asPolygonMesh) throws IOException {
Objects.requireNonNull(fileUrl, "URL must not be null");
String extForm = fileUrl.toExternalForm();
// get extension
final int dot = extForm.lastIndexOf('.');
if (dot <= 0) {
throw new IOException("Unknown 3D file format, url missing extension [" + fileUrl + "]");
}
final String extension = extForm.substring(dot + 1).toLowerCase();
// Reference all the importer jars
ImporterFinder finder = new ImporterFinder();
URLClassLoader classLoader = finder.addUrlToClassPath();
ServiceLoader servantLoader = ServiceLoader.load(Importer.class, classLoader);
// Check if we have an implementation for this file type
Importer importer = null;
for (Importer plugin : servantLoader) {
if (plugin.isSupported(extension)) {
importer = plugin;
break;
}
}
// Check well known loaders that might not be in a jar (ie. running from an IDE)
if (importer == null) {
String [] names = {
// "org.fxyz3d.importers.dae.DaeImporter", // Not supported yet
// "org.fxyz3d.importers.max.MaxLoader", // Not supported yet
"org.fxyz3d.importers.maya.MayaImporter",
"org.fxyz3d.importers.obj.ObjImporter",
"org.fxyz3d.importers.fxml.FXMLImporter",
};
boolean fail = true;
for (String name : names) {
try {
Class clazz = Class.forName(name);
Object obj = clazz.getDeclaredConstructor().newInstance();
if (obj instanceof Importer) {
Importer plugin = (Importer) obj;
if (plugin.isSupported(extension)) {
importer = plugin;
fail = false;
break;
}
}
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException |
NoSuchMethodException | SecurityException | IllegalArgumentException | InvocationTargetException e) {
// FAIL SILENTLY
}
}
if (fail) throw new IOException("Unknown 3D file format [" + extension + "]");
}
return asPolygonMesh ? importer.loadAsPoly(fileUrl) : importer.load(fileUrl);
}
}
