LightJason - AgentSpeak(L++)
action/builtin/string/CNCD.java
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1 /*
2  * @cond LICENSE
3  * ######################################################################################
4  * # LGPL License #
5  * # #
6  * # This file is part of the LightJason AgentSpeak(L++) #
7  * # Copyright (c) 2015-19, LightJason (info@lightjason.org) #
8  * # This program is free software: you can redistribute it and/or modify #
9  * # it under the terms of the GNU Lesser General Public License as #
10  * # published by the Free Software Foundation, either version 3 of the #
11  * # License, or (at your option) any later version. #
12  * # #
13  * # This program is distributed in the hope that it will be useful, #
14  * # but WITHOUT ANY WARRANTY; without even the implied warranty of #
15  * # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
16  * # GNU Lesser General Public License for more details. #
17  * # #
18  * # You should have received a copy of the GNU Lesser General Public License #
19  * # along with this program. If not, see http://www.gnu.org/licenses/ #
20  * ######################################################################################
21  * @endcond
22  */
23 
24 package org.lightjason.agentspeak.action.builtin.string;
25 
33 
34 import javax.annotation.Nonnegative;
35 import javax.annotation.Nonnull;
36 import java.util.List;
37 import java.util.stream.Collectors;
38 
39 
51 public final class CNCD extends IBuiltinAction
52 {
56  private static final long serialVersionUID = -3828839577514827324L;
57 
58  @Nonnegative
59  @Override
60  public final int minimalArgumentNumber()
61  {
62  return 1;
63  }
64 
65  @Nonnull
66  @Override
67  public final IFuzzyValue<Boolean> execute( final boolean p_parallel, @Nonnull final IContext p_context,
68  @Nonnull final List<ITerm> p_argument, @Nonnull final List<ITerm> p_return )
69  {
70  final List<String> l_arguments = CCommon.flatten( p_argument )
71  .map( ITerm::<String>raw )
72  .collect( Collectors.toList() );
73 
74  // get arguments
75  final int l_skip;
76  final CCommon.ECompression l_compression;
77 
78  if ( ( !l_arguments.isEmpty() ) && ( CCommon.ECompression.exist( l_arguments.get( 0 ) ) ) )
79  {
80  l_compression = CCommon.ECompression.from( l_arguments.get( 0 ) );
81  l_skip = 1;
82  }
83  else
84  {
85  l_compression = CCommon.ECompression.BZIP;
86  l_skip = 0;
87  }
88 
89  // check input arguments
90  if ( l_arguments.size() < 2 + l_skip )
91  return CFuzzyValue.from( false );
92 
93 
94  // calculate distance
95  l_arguments.stream()
96  .skip( l_skip + 1 )
97  .mapToDouble( i -> CCommon.ncd( l_compression, l_arguments.get( l_skip ), i ) )
98  .boxed()
99  .map( CRawTerm::from )
100  .forEach( p_return::add );
101 
102  return CFuzzyValue.from( true );
103  }
104 }
base class of build-in actions for setting name by package/classname (without prefix character) ...
final int minimalArgumentNumber()
minimum number of arguments
static< N > IFuzzyValue< N > from( @Nonnull final N p_value)
factory
common structure for execution definition
static ECompression from( @Nonnull final String p_value)
returns a compression value
static boolean exist( @Nonnull final String p_value)
checks if a compression exists
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
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
calculates the normalized-compression-distance.
result for an immutable fuzzy value
static< N > CRawTerm< N > from(final N p_value)
factory for a raw term
Definition: CRawTerm.java:104
static double ncd( @Nonnull final ECompression p_compression, @Nonnull final String p_first, @Nonnull final String p_second)
normalized-compression-distance
term structure for simple datatypes
Definition: CRawTerm.java:45