CGet.java
- /*
- * @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.math.blas.vector;
- import cern.colt.matrix.tdouble.DoubleMatrix1D;
- 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.util.List;
- import java.util.stream.Collectors;
- /**
- * returns a single element of a vector.
- * The action returns the values by the given index,
- * first argument is the vector and all other values
- * are the index values, the action never fails
- *
- * {@code [X|Y|Z] = math/blas/vector/get( Vector, 1, [4, 5] );}
- */
- public final class CGet extends IBuiltinAction
- {
- /**
- * serial id
- */
- private static final long serialVersionUID = -6309098788207323909L;
- /**
- * ctor
- */
- public CGet()
- {
- super( 4 );
- }
- @Nonnegative
- @Override
- public final int minimalArgumentNumber()
- {
- return 2;
- }
- @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 )
- {
- final List<ITerm> l_arguments = CCommon.flatten( p_argument ).collect( Collectors.toList() );
- l_arguments.stream()
- .skip( 1 )
- .map( ITerm::<Number>raw )
- .map( Number::intValue )
- .map( i -> l_arguments.get( 0 ).<DoubleMatrix1D>raw().get( i ) )
- .map( CRawTerm::from )
- .forEach( p_return::add );
- return CFuzzyValue.from( true );
- }
- }