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PlantUML is a component that allows to quickly write diagrams from text.
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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
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 * (C) Copyright 2009-2024, Arnaud Roques
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 * Project Info:  https://plantuml.com
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 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
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 * 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 Lesser General Public
 * License for more details.
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 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see .
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 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
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 * are owned by the author of their corresponding sources code (that is, their
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 * this LGPL license.
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 * (see https://plantuml.com/graphviz-dot )
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 */
package net.sourceforge.plantuml.command;

import java.util.ArrayList;
import java.util.List;

import net.sourceforge.plantuml.AbstractPSystem;

public class CommandExecutionResult {

	private final String error;
	private final AbstractPSystem newDiagram;
	private final List debugLines;
	private final int score;

	private CommandExecutionResult(AbstractPSystem newDiagram, String error, int score, List debugLines) {
		this.error = error;
		this.newDiagram = newDiagram;
		this.debugLines = debugLines;
		this.score = score;

	}

	public CommandExecutionResult withDiagram(AbstractPSystem newDiagram) {
		return new CommandExecutionResult(newDiagram, error, 0, null);
	}

	@Override
	public String toString() {
		return super.toString() + " " + error;
	}

	public static CommandExecutionResult newDiagram(AbstractPSystem result) {
		return new CommandExecutionResult(result, null, 0, null);
	}

	public static CommandExecutionResult ok() {
		return new CommandExecutionResult(null, null, 0, null);
	}

	public static CommandExecutionResult badColor() {
		return new CommandExecutionResult(null, "No such color", 1, null);
	}

	public static CommandExecutionResult error(String error) {
		return new CommandExecutionResult(null, error, 0, null);
	}

	public static CommandExecutionResult error(String error, Throwable t) {
		return new CommandExecutionResult(null, error, 0, getStackTrace(t));
	}

	public static List getStackTrace(Throwable exception) {
		final List result = new ArrayList<>();
		result.add(exception.toString());
		for (StackTraceElement ste : exception.getStackTrace())
			result.add("  " + ste.toString());

		if (exception.getCause() != null) {
			final Throwable cause = exception.getCause();
			result.add("  ");
			result.add("Caused by " + cause.toString());
			for (StackTraceElement ste : cause.getStackTrace())
				result.add("  " + ste.toString());

		}
		return result;
	}

	public boolean isOk() {
		return error == null;
	}

	public String getError() {
		if (isOk())
			throw new IllegalStateException();

		return error;
	}

	public int getScore() {
		return score;
	}

	public AbstractPSystem getNewDiagram() {
		return newDiagram;
	}

	public List getDebugLines() {
		return debugLines;
	}

}