mirror of https://github.com/octoleo/plantuml.git
84 lines
2.7 KiB
Java
84 lines
2.7 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 2009-2021, Arnaud Roques
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*
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* Project Info: https://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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* https://plantuml.com/patreon (only 1$ per month!)
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* https://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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package net.sourceforge.plantuml.tim.stdlib;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import net.sourceforge.plantuml.json.JsonObject;
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import net.sourceforge.plantuml.json.JsonValue;
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import net.sourceforge.plantuml.text.StringLocated;
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import net.sourceforge.plantuml.tim.EaterExceptionLocated;
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import net.sourceforge.plantuml.tim.TContext;
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import net.sourceforge.plantuml.tim.TFunctionSignature;
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import net.sourceforge.plantuml.tim.TMemory;
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import net.sourceforge.plantuml.tim.expression.TValue;
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public class JsonKeyExists extends SimpleReturnFunction {
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public TFunctionSignature getSignature() {
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return new TFunctionSignature("%json_key_exists", 1);
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}
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@Override
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public boolean canCover(int nbArg, Set<String> namedArgument) {
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return nbArg == 2;
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}
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@Override
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public TValue executeReturnFunction(TContext context, TMemory memory, StringLocated location, List<TValue> values,
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Map<String, TValue> named) throws EaterExceptionLocated {
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final TValue arg0 = values.get(0);
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if (arg0.isJson() == false)
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return TValue.fromBoolean(false);
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final JsonValue json = arg0.toJson();
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if (json.isObject() == false)
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return TValue.fromBoolean(false);
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final TValue arg1 = values.get(1);
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if (arg1.isString() == false)
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return TValue.fromBoolean(false);
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final String keyname = arg1.toString();
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final JsonObject object = (JsonObject) json;
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if (object.contains(keyname))
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return TValue.fromBoolean(true);
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return TValue.fromBoolean(false);
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}
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}
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