LightJason - AgentSpeak(L++)
CZip.java
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1 /*
2  * @cond LICENSE
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4  * # LGPL License #
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23 
24 package org.lightjason.agentspeak.action.builtin.collection.list;
25 
26 import com.codepoetics.protonpack.StreamUtils;
34 
35 import javax.annotation.Nonnegative;
36 import javax.annotation.Nonnull;
37 import java.util.AbstractMap;
38 import java.util.Collections;
39 import java.util.List;
40 import java.util.stream.Collectors;
41 
42 
52 public final class CZip extends IBuiltinAction
53 {
57  private static final long serialVersionUID = 3280909344611567001L;
58 
62  public CZip()
63  {
64  super( 3 );
65  }
66 
67  @Nonnegative
68  @Override
69  public final int minimalArgumentNumber()
70  {
71  return 1;
72  }
73 
74  @Nonnull
75  @Override
76  public final IFuzzyValue<Boolean> execute( final boolean p_parallel, @Nonnull final IContext p_context,
77  @Nonnull final List<ITerm> p_argument, @Nonnull final List<ITerm> p_return )
78  {
79  final List<?> l_arguments = CCommon.flatten( p_argument ).map( ITerm::raw ).collect( Collectors.toList() );
80  if ( l_arguments.size() % 2 == 1 )
81  return CFuzzyValue.from( false );
82 
83  final List<AbstractMap.Entry<?, ?>> l_result = StreamUtils.zip(
84  l_arguments.stream().limit( l_arguments.size() / 2 ),
85  l_arguments.stream().skip( l_arguments.size() / 2 ),
86  AbstractMap.SimpleEntry::new
87  ).collect( Collectors.toList() );
88 
89  p_return.add(
90  CRawTerm.from(
91  p_parallel ? Collections.synchronizedList( l_result ) : l_result
92  )
93  );
94 
95  return CFuzzyValue.from( true );
96  }
97 
98 }
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
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
creates a list of tuples with elements of two lists.
Definition: CZip.java:52
< T > T raw()
cast to any raw value type
static< N > CRawTerm< N > from(final N p_value)
factory for a raw term
Definition: CRawTerm.java:104
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
Definition: CZip.java:76
final int minimalArgumentNumber()
minimum number of arguments
Definition: CZip.java:69
term structure for simple datatypes
Definition: CRawTerm.java:45