/* ========================================================================
 * PlantUML : a free UML diagram generator
 * ========================================================================
 *
 * (C) Copyright 2009-2017, Arnaud Roques
 *
 * Project Info:  http://plantuml.com
 * 
 * If you like this project or if you find it useful, you can support us at:
 * 
 * http://plantuml.com/patreon (only 1$ per month!)
 * http://plantuml.com/paypal
 * 
 * This file is part of PlantUML.
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PlantUML 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 for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 *
 * Original Author:  Arnaud Roques
 * 
 *
 */
package net.sourceforge.plantuml.descdiagram.command;

import net.sourceforge.plantuml.FontParam;
import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.Url;
import net.sourceforge.plantuml.UrlBuilder;
import net.sourceforge.plantuml.UrlBuilder.ModeUrl;
import net.sourceforge.plantuml.classdiagram.AbstractEntityDiagram;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.SingleLineCommand2;
import net.sourceforge.plantuml.command.regex.RegexConcat;
import net.sourceforge.plantuml.command.regex.RegexLeaf;
import net.sourceforge.plantuml.command.regex.RegexOr;
import net.sourceforge.plantuml.command.regex.RegexResult;
import net.sourceforge.plantuml.cucadiagram.Code;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.cucadiagram.IEntity;
import net.sourceforge.plantuml.cucadiagram.ILeaf;
import net.sourceforge.plantuml.cucadiagram.LeafType;
import net.sourceforge.plantuml.cucadiagram.Stereotype;
import net.sourceforge.plantuml.descdiagram.DescriptionDiagram;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.USymbol;
import net.sourceforge.plantuml.graphic.color.ColorParser;
import net.sourceforge.plantuml.graphic.color.ColorType;
import net.sourceforge.plantuml.graphic.color.Colors;

public class CommandCreateElementFull extends SingleLineCommand2 {

	public static final String ALL_TYPES = "artifact|actor|folder|card|file|package|rectangle|node|frame|cloud|database|queue|stack|storage|agent|usecase|component|boundary|control|entity|interface|circle|collections";

	public CommandCreateElementFull() {
		super(getRegexConcat());
	}

	private static RegexConcat getRegexConcat() {
		return new RegexConcat(new RegexLeaf("^"), //
				new RegexLeaf("SYMBOL", "(?:(" + ALL_TYPES + "|\\(\\))[%s]+)?"), //
				color2().getRegex(), //
				new RegexLeaf("[%s]*"), //
				new RegexOr(//
						new RegexLeaf("CODE1", CODE_WITH_QUOTE), //
						new RegexConcat(//
								new RegexLeaf("DISPLAY2", DISPLAY), //
								new RegexLeaf("STEREOTYPE2", "(?:[%s]+(\\<\\<.+\\>\\>))?"), //
								new RegexLeaf("[%s]*as[%s]+"), //
								new RegexLeaf("CODE2", CODE)), //
						new RegexConcat(//
								new RegexLeaf("CODE3", CODE), //
								new RegexLeaf("STEREOTYPE3", "(?:[%s]+(\\<\\<.+\\>\\>))?"), //
								new RegexLeaf("[%s]+as[%s]*"), //
								new RegexLeaf("DISPLAY3", DISPLAY)), //
						new RegexConcat(//
								new RegexLeaf("DISPLAY4", DISPLAY_WITHOUT_QUOTE), //
								new RegexLeaf("STEREOTYPE4", "(?:[%s]+(\\<\\<.+\\>\\>))?"), //
								new RegexLeaf("[%s]*as[%s]+"), //
								new RegexLeaf("CODE4", CODE)) //
				), //
				new RegexLeaf("STEREOTYPE", "(?:[%s]*(\\<\\<.+\\>\\>))?"), //
				new RegexLeaf("[%s]*"), //
				new RegexLeaf("URL", "(" + UrlBuilder.getRegexp() + ")?"), //
				new RegexLeaf("[%s]*"), //
				color().getRegex(), //
				new RegexLeaf("$"));
	}

	private static ColorParser color() {
		return ColorParser.simpleColor(ColorType.BACK);
	}

	private static ColorParser color2() {
		return ColorParser.simpleColor(ColorType.BACK, "COLOR2");
	}

	private static final String CODE_CORE = "[\\p{L}0-9_.]+|\\(\\)[%s]*[\\p{L}0-9_.]+|\\(\\)[%s]*[%g][^%g]+[%g]|:[^:]+:|\\([^()]+\\)|\\[[^\\[\\]]+\\]";
	public static final String CODE = "(" + CODE_CORE + ")";
	public static final String CODE_WITH_QUOTE = "(" + CODE_CORE + "|[%g][^%g]+[%g])";

	private static final String DISPLAY_CORE = "[%g][^%g]+[%g]|:[^:]+:|\\([^()]+\\)|\\[[^\\[\\]]+\\]";
	public static final String DISPLAY = "(" + DISPLAY_CORE + ")";
	public static final String DISPLAY_WITHOUT_QUOTE = "(" + DISPLAY_CORE + "|[\\p{L}0-9_.]+)";

	@Override
	final protected boolean isForbidden(CharSequence line) {
		if (line.toString().matches("^[\\p{L}0-9_.]+$")) {
			return true;
		}
		return false;
	}

	@Override
	protected CommandExecutionResult executeArg(DescriptionDiagram diagram, RegexResult arg) {
		String codeRaw = arg.getLazzy("CODE", 0);
		final String displayRaw = arg.getLazzy("DISPLAY", 0);
		final char codeChar = getCharEncoding(codeRaw);
		final char codeDisplay = getCharEncoding(displayRaw);
		final String symbol;
		if (codeRaw.startsWith("()")) {
			symbol = "interface";
			codeRaw = StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(StringUtils.trin(codeRaw.substring(2)));
		} else if (codeChar == '(' || codeDisplay == '(') {
			symbol = "usecase";
		} else if (codeChar == ':' || codeDisplay == ':') {
			symbol = "actor";
		} else if (codeChar == '[' || codeDisplay == '[') {
			symbol = "component";
		} else {
			symbol = arg.get("SYMBOL", 0);
		}

		final LeafType type;
		final USymbol usymbol;

		if (symbol == null) {
			type = LeafType.DESCRIPTION;
			usymbol = USymbol.ACTOR;
		} else if (symbol.equalsIgnoreCase("usecase")) {
			type = LeafType.USECASE;
			usymbol = null;
		} else if (symbol.equalsIgnoreCase("circle")) {
			type = LeafType.CIRCLE;
			usymbol = null;
		} else {
			type = LeafType.DESCRIPTION;
			usymbol = USymbol.getFromString(symbol, diagram.getSkinParam().useUml2ForComponent());
			if (usymbol == null) {
				throw new IllegalStateException();
			}
		}

		final Code code = Code.of(StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(codeRaw));
		if (diagram.isGroup(code)) {
			return CommandExecutionResult.error("This element (" + code.getFullName() + ") is already defined");
		}
		String display = displayRaw;
		if (display == null) {
			display = code.getFullName();
		}
		display = StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(display);
		final String stereotype = arg.getLazzy("STEREOTYPE", 0);
		if (existsWithBadType(diagram, code, type, usymbol)) {
			return CommandExecutionResult.error("This element (" + code.getFullName() + ") is already defined");
		}
		final IEntity entity = diagram.getOrCreateLeaf(code, type, usymbol);
		entity.setDisplay(Display.getWithNewlines(display));
		entity.setUSymbol(usymbol);
		if (stereotype != null) {
			entity.setStereotype(new Stereotype(stereotype, diagram.getSkinParam().getCircledCharacterRadius(), diagram
					.getSkinParam().getFont(null, false, FontParam.CIRCLED_CHARACTER), diagram.getSkinParam()
					.getIHtmlColorSet()));
		}

		final String urlString = arg.get("URL", 0);
		if (urlString != null) {
			final UrlBuilder urlBuilder = new UrlBuilder(diagram.getSkinParam().getValue("topurl"), ModeUrl.STRICT);
			final Url url = urlBuilder.getUrl(urlString);
			entity.addUrl(url);
		}

		Colors colors = color().getColor(arg, diagram.getSkinParam().getIHtmlColorSet());

		final HtmlColor lineColor = diagram.getSkinParam().getIHtmlColorSet().getColorIfValid(arg.get("LINECOLOR", 1));
		if (lineColor != null) {
			colors = colors.add(ColorType.LINE, lineColor);
		}
		entity.setColors(colors);

		// entity.setSpecificColorTOBEREMOVED(ColorType.BACK,
		// diagram.getSkinParam().getIHtmlColorSet().getColorIfValid(arg.get("COLOR", 0)));
		return CommandExecutionResult.ok();
	}

	public static boolean existsWithBadType(AbstractEntityDiagram diagram, final Code code, LeafType type,
			USymbol usymbol) {
		if (diagram.leafExist(code) == false) {
			return false;
		}
		final ILeaf other = diagram.getLeafsget(code);
		if (other.getLeafType() != type) {
			return true;
		}
		if (usymbol != null && other.getUSymbol() != usymbol) {
			return true;
		}
		return false;
	}

	private char getCharEncoding(final String codeRaw) {
		return codeRaw != null && codeRaw.length() > 2 ? codeRaw.charAt(0) : 0;
	}
}

 

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