LightJason - AgentSpeak(L++)
CDotProduct.java
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1 /*
2  * @cond LICENSE
3  * ######################################################################################
4  * # LGPL License #
5  * # #
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23 
24 package org.lightjason.agentspeak.action.builtin.math.blas.vector;
25 
26 import cern.colt.matrix.tdouble.DoubleMatrix1D;
27 import com.codepoetics.protonpack.StreamUtils;
35 
36 import javax.annotation.Nonnegative;
37 import javax.annotation.Nonnull;
38 import java.util.List;
39 import java.util.stream.Collectors;
40 
41 
51 public final class CDotProduct extends IBuiltinAction
52 {
56  private static final long serialVersionUID = -953714393424081234L;
57 
61  public CDotProduct()
62  {
63  super( 4 );
64  }
65 
66  @Nonnegative
67  @Override
68  public final int minimalArgumentNumber()
69  {
70  return 2;
71  }
72 
73  @Nonnull
74  @Override
75  public final IFuzzyValue<Boolean> execute( final boolean p_parallel, @Nonnull final IContext p_context,
76  @Nonnull final List<ITerm> p_argument, @Nonnull final List<ITerm> p_return )
77  {
78  final List<DoubleMatrix1D> l_arguments = CCommon.flatten( p_argument ).map( ITerm::<DoubleMatrix1D>raw ).collect( Collectors.toList() );
79  if ( l_arguments.size() % 2 == 1 )
80  return CFuzzyValue.from( false );
81 
82  StreamUtils.windowed( l_arguments.stream(), 2 )
83  .map( i -> i.get( 0 ).zDotProduct( i.get( 1 ) ) )
84  .map( CRawTerm::from )
85  .forEach( p_return::add );
86 
87  return CFuzzyValue.from( true );
88  }
89 }
base class of build-in actions for setting name by package/classname (without prefix character) ...
static< N > IFuzzyValue< N > from( @Nonnull final N p_value)
factory
common structure for execution definition
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)
defines a plan-body operation
execution context with local data
Definition: IContext.java:42
static Stream< ITerm > flatten( @Nonnull final Collection<? extends ITerm > p_terms)
flat term-in-term collection into a straight term list
result for an immutable fuzzy value
static< N > CRawTerm< N > from(final N p_value)
factory for a raw term
Definition: CRawTerm.java:104
term structure for simple datatypes
Definition: CRawTerm.java:45