org.lightjason.agentspeak.action.builtin.datetime.IBetween.java Source code

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Here is the source code for org.lightjason.agentspeak.action.builtin.datetime.IBetween.java

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/*
 * @cond LICENSE
 * ######################################################################################
 * # LGPL License                                                                       #
 * #                                                                                    #
 * # This file is part of the LightJason AgentSpeak(L++)                                #
 * # Copyright (c) 2015-17, 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.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.Instant;
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.ZonedDateTime;
import java.util.List;
import java.util.TimeZone;
import java.util.stream.Stream;

/**
 * abstract class to calculate difference
 * between date-time elements
 */
public abstract class IBetween extends IBuiltinAction {
    /**
     * serial id
     */
    private static final long serialVersionUID = 2806678071531558364L;

    /**
     * ctor
     */
    protected IBetween() {
    }

    @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) {
        this.apply(StreamUtils.windowed(
                CCommon.flatten(p_argument).map(ITerm::<ZonedDateTime>raw)
                        .map(i -> new DateTime(i.toInstant().toEpochMilli(),
                                DateTimeZone.forTimeZone(TimeZone.getTimeZone(i.getZone()))))
                        .map(Instant::new),
                2, 2)).map(CRawTerm::from).forEach(p_return::add);

        return CFuzzyValue.from(true);
    }

    /**
     * calculating method
     *
     * @param p_datetime stream with list of date-time elements
     * @return output stream
     */
    @Nonnull
    protected abstract Stream<?> apply(@Nonnull final Stream<List<Instant>> p_datetime);

}