CBuild.java

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/*
 * @cond LICENSE
 * ######################################################################################
 * # LGPL License                                                                       #
 * #                                                                                    #
 * # This file is part of the LightJason AgentSpeak(L++)                                #
 * # Copyright (c) 2015-19, LightJason (info@lightjason.org)                            #
 * # This program 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.                                    #
 * #                                                                                    #
 * # This program is 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.                                #
 * #                                                                                    #
 * # You should have received a copy of the GNU Lesser General Public License           #
 * # along with this program. If not, see http://www.gnu.org/licenses/                  #
 * ######################################################################################
 * @endcond
 */

package org.lightjason.agentspeak.action.builtin.datetime;

import com.codepoetics.protonpack.StreamUtils;
import org.lightjason.agentspeak.action.builtin.IBuiltinAction;
import org.lightjason.agentspeak.language.CCommon;
import org.lightjason.agentspeak.language.CRawTerm;
import org.lightjason.agentspeak.language.ITerm;
import org.lightjason.agentspeak.language.execution.IContext;
import org.lightjason.agentspeak.language.fuzzy.CFuzzyValue;
import org.lightjason.agentspeak.language.fuzzy.IFuzzyValue;

import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.List;


public final class CBuild extends IBuiltinAction
{
    private static final long serialVersionUID = -8462499187047054608L;

    @Nonnegative
    @Override
    public final int minimalArgumentNumber()
    {
        return 1;
    }

    @Nonnull
    @Override
    public final IFuzzyValue<Boolean> execute( final boolean p_parallel, @Nonnull final IContext p_context,
                                               @Nonnull final List<ITerm> p_argument, @Nonnull final List<ITerm> p_return )
    {
        StreamUtils.windowed(
            CCommon.flatten( p_argument ),
        8,
            8
        )
                   .map( CBuild::apply )
                   .map( CRawTerm::from )
                   .forEach( p_return::add );

        return CFuzzyValue.from( true );
    }

    @Nonnull
    private static ZonedDateTime apply( @Nonnull final List<ITerm> p_elements )
    {
        return ZonedDateTime.of(

            // year, month, day
            p_elements.get( 0 ).<Number>raw().intValue(),
            p_elements.get( 1 ).<Number>raw().intValue(),
            p_elements.get( 2 ).<Number>raw().intValue(),

            // hours, minutes, seconds, nano-seconds
            p_elements.get( 3 ).<Number>raw().intValue(),
            p_elements.get( 4 ).<Number>raw().intValue(),
            p_elements.get( 5 ).<Number>raw().intValue(),
            p_elements.get( 6 ).<Number>raw().intValue(),

            // zone id if empty or current, system-default will be used
            ( "current".equalsIgnoreCase( p_elements.get( 7 ).<String>raw().trim() ) ) || ( p_elements.get( 7 ).<String>raw().trim().isEmpty() )
            ? ZoneId.systemDefault()
            : ZoneId.of( p_elements.get( 7 ).<String>raw().trim() )
        );
    }

}