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108 lines
3.2 KiB
Java
108 lines
3.2 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2023, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package com.plantuml.wasm;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.StringReader;
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import java.util.Collections;
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import java.util.List;
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import net.sourceforge.plantuml.BlockUml;
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import net.sourceforge.plantuml.BlockUmlBuilder;
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import net.sourceforge.plantuml.ErrorUml;
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import net.sourceforge.plantuml.FileFormat;
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import net.sourceforge.plantuml.FileFormatOption;
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import net.sourceforge.plantuml.core.Diagram;
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import net.sourceforge.plantuml.core.ImageData;
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import net.sourceforge.plantuml.error.PSystemError;
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import net.sourceforge.plantuml.preproc.Defines;
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public class Png {
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public static int convert(String pathOut, String text) {
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WasmLog.start = System.currentTimeMillis();
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WasmLog.log("Starting processing");
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try {
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final FileFormatOption format = new FileFormatOption(FileFormat.PNG);
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text = cleanText(text);
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final BlockUmlBuilder builder = new BlockUmlBuilder(Collections.<String>emptyList(), UTF_8,
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Defines.createEmpty(), new StringReader(text), null, "string");
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List<BlockUml> blocks = builder.getBlockUmls();
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if (blocks.size() == 0)
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return 43;
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final Diagram system = blocks.get(0).getDiagram();
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if (system instanceof PSystemError) {
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final ErrorUml error = ((PSystemError) system).getFirstError();
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WasmLog.log("[" + error.getPosition() + "] " + error.getError());
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return 44;
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}
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WasmLog.log("...processing...");
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final FileOutputStream fos = new FileOutputStream(new File(pathOut));
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WasmLog.log("...loading data...");
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final ImageData imageData = system.exportDiagram(fos, 0, format);
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WasmLog.log("Done!");
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fos.close();
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return 0;
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} catch (Throwable t) {
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WasmLog.log("Fatal error " + t);
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}
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return 47;
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}
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private static String cleanText(String text) {
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if (text.endsWith("\n") == false)
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text = text + "\n";
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if (text.endsWith("@start") == false)
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text = "@startuml\n" + text + "@enduml\n";
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return text;
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}
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}
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