net.sourceforge.plantuml.cheneer.command.CommandCreateAttribute Maven / Gradle / Ivy

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package net.sourceforge.plantuml.cheneer.command;

import net.sourceforge.plantuml.abel.Entity;
import net.sourceforge.plantuml.abel.LeafType;
import net.sourceforge.plantuml.abel.Link;
import net.sourceforge.plantuml.abel.LinkArg;
import net.sourceforge.plantuml.cheneer.ChenEerDiagram;
import net.sourceforge.plantuml.command.CommandExecutionResult;
import net.sourceforge.plantuml.command.SingleLineCommand2;
import net.sourceforge.plantuml.decoration.LinkDecor;
import net.sourceforge.plantuml.decoration.LinkType;
import net.sourceforge.plantuml.klimt.color.NoSuchColorException;
import net.sourceforge.plantuml.klimt.creole.Display;
import net.sourceforge.plantuml.plasma.Quark;
import net.sourceforge.plantuml.regex.IRegex;
import net.sourceforge.plantuml.regex.RegexConcat;
import net.sourceforge.plantuml.regex.RegexLeaf;
import net.sourceforge.plantuml.regex.RegexOptional;
import net.sourceforge.plantuml.regex.RegexResult;
import net.sourceforge.plantuml.stereo.Stereotype;
import net.sourceforge.plantuml.utils.LineLocation;

public class CommandCreateAttribute extends SingleLineCommand2 {

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

	protected static IRegex getRegexConcat() {
		return RegexConcat.build(CommandCreateEntity.class.getName(), RegexLeaf.start(), //
				RegexLeaf.spaceZeroOrMore(),
				new RegexOptional( // Copied from CommandCreatePackageBlock
						new RegexConcat( //
								new RegexLeaf("DISPLAY", "[%g]([^%g]+)[%g]"), //
								RegexLeaf.spaceOneOrMore(), //
								new RegexLeaf("as"), //
								RegexLeaf.spaceOneOrMore() //
						)), //
				new RegexLeaf("CODE", "([%pLN%s_.:]+)"), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("STEREO", "(<<.*>>)?"), //
				RegexLeaf.spaceZeroOrMore(), //
				new RegexLeaf("COMPOSITE", "(\\{)?"), //
				RegexLeaf.end());
	}

	@Override
	protected CommandExecutionResult executeArg(ChenEerDiagram diagram, LineLocation location, RegexResult arg)
			throws NoSuchColorException {
		final Entity owner = diagram.peekOwner();
		if (owner == null) {
			return CommandExecutionResult.error("Attribute must be inside an entity, relationship or another attribute");
		}

		final LeafType type = LeafType.CHEN_ATTRIBUTE;
		final String idShort = diagram.cleanId(arg.get("CODE", 0).trim());
		final String id = owner.getName() + "/" + idShort;
		final Quark quark = diagram.quarkInContext(true, id);
		String displayText = arg.get("DISPLAY", 0);
		if (displayText == null)
			displayText = idShort;

		final String stereo = arg.get("STEREO", 0);
		final boolean composite = arg.get("COMPOSITE", 0) != null;

		Entity entity = quark.getData();
		if (entity == null) {
			final Display display = Display.getWithNewlines(displayText);
			entity = diagram.reallyCreateLeaf(quark, display, type, null);
		} else {
			return CommandExecutionResult.error("Attribute already exists");
		}

		if (stereo != null) {
			entity.setStereotype(Stereotype.build(stereo));
			entity.setStereostyle(stereo);
		}

		final LinkType linkType = new LinkType(LinkDecor.NONE, LinkDecor.NONE);
		final Link link = new Link(diagram.getEntityFactory(), diagram.getCurrentStyleBuilder(), entity, owner, linkType,
				LinkArg.build(Display.NULL, 2));
		diagram.addLink(link);

		if (composite) {
			diagram.pushOwner(entity);
		}

		return CommandExecutionResult.ok();
	}

}