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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 *
 * If you like this project or if you find it useful, you can support us at:
 *
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License V2.
 *
 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
 *
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 * You may obtain a copy of the License at
 *
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * 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.
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this GPL v2 license.
 *
 * The generated images can then be used without any reference to the GPL v2 license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.style;

import java.io.IOException;
import java.io.InputStream;
import java.util.EnumMap;
import java.util.Map;
import java.util.Map.Entry;

import net.sourceforge.plantuml.FileSystem;
import net.sourceforge.plantuml.security.SFile;
import net.sourceforge.plantuml.skin.SkinParam;
import net.sourceforge.plantuml.style.parser.StyleParser;
import net.sourceforge.plantuml.style.parser.StyleParsingException;
import net.sourceforge.plantuml.utils.BlocLines;
import net.sourceforge.plantuml.utils.LineLocationImpl;
import net.sourceforge.plantuml.utils.Log;

public class StyleLoader {
    // ::remove file when __HAXE__

	private final SkinParam skinParam;

	public StyleLoader(SkinParam skinParam) {
		this.skinParam = skinParam;
	}

	private StyleBuilder styleBuilder;

	public StyleBuilder loadSkin(String filename) throws IOException, StyleParsingException {
		this.styleBuilder = new StyleBuilder(skinParam);

		final InputStream internalIs = getInputStreamForStyle(filename);
		if (internalIs == null) {
			Log.error("No .skin file seems to be available");
			throw new NoStyleAvailableException();
		}
		final BlocLines lines2 = BlocLines.load(internalIs, new LineLocationImpl(filename, null));
		loadSkinInternal(lines2);
		if (this.styleBuilder == null) {
			Log.error("No .skin file seems to be available");
			throw new NoStyleAvailableException();
		}
		return this.styleBuilder;
	}

	public static InputStream getInputStreamForStyle(String filename) throws IOException {
		// ::uncomment when __CORE__
//		final String res = "/skin/" + filename;
//		final InputStream is = StyleLoader.class.getResourceAsStream(res);
//		return is;

		// ::comment when __CORE__
		InputStream internalIs = null;
		SFile localFile = new SFile(filename);
		Log.info("Trying to load style " + filename);
		try {
			if (localFile.exists() == false)
				localFile = FileSystem.getInstance().getFile(filename);
		} catch (IOException e) {
			Log.info("Cannot open file. " + e);
		}

		if (localFile.exists()) {
			Log.info("File found : " + localFile.getPrintablePath());
			internalIs = localFile.openFile();
		} else {
			Log.info("File not found : " + localFile.getPrintablePath());
			final String res = "/skin/" + filename;
			internalIs = StyleLoader.class.getResourceAsStream(res);
			if (internalIs != null)
				Log.info("... but " + filename + " found inside the .jar");

		}
		return internalIs;
	}

	private void loadSkinInternal(final BlocLines lines) throws StyleParsingException {
		for (Style newStyle : StyleParser.parse(lines, styleBuilder))
			this.styleBuilder.loadInternal(newStyle.getSignature(), newStyle);
	}

	public static final int DELTA_PRIORITY_FOR_STEREOTYPE = 1000;

	public static Map addPriorityForStereotype(Map tmp) {
		final Map result = new EnumMap<>(PName.class);
		for (Entry ent : tmp.entrySet())
			result.put(ent.getKey(), ((ValueImpl) ent.getValue()).addPriority(DELTA_PRIORITY_FOR_STEREOTYPE));

		return result;
	}

}