CSize.java

  1. /*
  2.  * @cond LICENSE
  3.  * ######################################################################################
  4.  * # LGPL License                                                                       #
  5.  * #                                                                                    #
  6.  * # This file is part of the LightJason AgentSpeak(L++)                                #
  7.  * # Copyright (c) 2015-19, LightJason (info@lightjason.org)                            #
  8.  * # This program is free software: you can redistribute it and/or modify               #
  9.  * # it under the terms of the GNU Lesser General Public License as                     #
  10.  * # published by the Free Software Foundation, either version 3 of the                 #
  11.  * # License, or (at your option) any later version.                                    #
  12.  * #                                                                                    #
  13.  * # This program is distributed in the hope that it will be useful,                    #
  14.  * # but WITHOUT ANY WARRANTY; without even the implied warranty of                     #
  15.  * # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                      #
  16.  * # GNU Lesser General Public License for more details.                                #
  17.  * #                                                                                    #
  18.  * # You should have received a copy of the GNU Lesser General Public License           #
  19.  * # along with this program. If not, see http://www.gnu.org/licenses/                  #
  20.  * ######################################################################################
  21.  * @endcond
  22.  */

  23. package org.lightjason.agentspeak.action.builtin.string;

  24. import org.lightjason.agentspeak.action.builtin.IBuiltinAction;
  25. import org.lightjason.agentspeak.language.CCommon;
  26. import org.lightjason.agentspeak.language.CRawTerm;
  27. import org.lightjason.agentspeak.language.ITerm;
  28. import org.lightjason.agentspeak.language.execution.IContext;
  29. import org.lightjason.agentspeak.language.fuzzy.CFuzzyValue;
  30. import org.lightjason.agentspeak.language.fuzzy.IFuzzyValue;

  31. import javax.annotation.Nonnegative;
  32. import javax.annotation.Nonnull;
  33. import java.util.List;


  34. /**
  35.  * action to get the string length.
  36.  * For each argument the string length will be returned
  37.  * and the action never fails
  38.  *
  39.  * {@code [A|B|C] = string/size("A", ["CC", "XYZ"]);}
  40.  */
  41. public final class CSize extends IBuiltinAction
  42. {
  43.     /**
  44.      * serial id
  45.      */
  46.     private static final long serialVersionUID = 3545198567138617973L;

  47.     @Nonnegative
  48.     @Override
  49.     public final int minimalArgumentNumber()
  50.     {
  51.         return 1;
  52.     }

  53.     @Nonnull
  54.     @Override
  55.     public final IFuzzyValue<Boolean> execute( final boolean p_parallel, @Nonnull final IContext p_context,
  56.                                                @Nonnull final List<ITerm> p_argument, @Nonnull final List<ITerm> p_return )
  57.     {
  58.         CCommon.flatten( p_argument )
  59.                .map( ITerm::<String>raw )
  60.                .map( String::length )
  61.                .map( CRawTerm::from )
  62.                .forEach( p_return::add );

  63.         return CFuzzyValue.from( true );
  64.     }

  65. }