CProxyAction.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.language.execution.action;
- import org.apache.commons.lang3.StringUtils;
- import org.lightjason.agentspeak.action.IAction;
- import org.lightjason.agentspeak.common.IPath;
- import org.lightjason.agentspeak.error.CIllegalArgumentException;
- import org.lightjason.agentspeak.language.CCommon;
- import org.lightjason.agentspeak.language.ILiteral;
- import org.lightjason.agentspeak.language.ITerm;
- import org.lightjason.agentspeak.language.execution.IContext;
- import org.lightjason.agentspeak.language.execution.IExecution;
- import org.lightjason.agentspeak.language.fuzzy.CFuzzyValue;
- import org.lightjason.agentspeak.language.fuzzy.IFuzzyValue;
- import org.lightjason.agentspeak.language.variable.IVariable;
- import javax.annotation.Nonnull;
- import java.text.MessageFormat;
- import java.util.Collection;
- import java.util.Collections;
- import java.util.LinkedList;
- import java.util.List;
- import java.util.Map;
- import java.util.Objects;
- import java.util.stream.Collectors;
- import java.util.stream.IntStream;
- import java.util.stream.Stream;
- /**
- * proxy action to encapsulate all actions
- */
- public final class CProxyAction implements IExecution
- {
- /**
- * serial id
- */
- private static final long serialVersionUID = 4799005052331053271L;
- /**
- * execution
- */
- private final IExecution m_execution;
- /**
- * ctor
- *
- * @param p_actions actions definition
- * @param p_literal literal
- */
- public CProxyAction( @Nonnull final Map<IPath, IAction> p_actions, @Nonnull final ILiteral p_literal )
- {
- m_execution = new CActionWrapper( p_literal, p_actions );
- }
- @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
- )
- {
- return m_execution.execute( p_parallel, p_context, p_argument, p_return );
- }
- @Nonnull
- @Override
- public final Stream<IVariable<?>> variables()
- {
- return m_execution.variables();
- }
- @Override
- public final String toString()
- {
- return MessageFormat.format( "{0}", m_execution );
- }
- /**
- * inner class for encapsulating term values (variable / raw terms)
- */
- private static class CTermWrapper<T extends ITerm> implements IExecution
- {
- /**
- * serial id
- */
- private static final long serialVersionUID = 6984535096829821628L;
- /**
- * term value
- */
- private final T m_value;
- /**
- * ctor
- *
- * @param p_value any static term
- */
- CTermWrapper( @Nonnull final T p_value )
- {
- m_value = p_value;
- }
- @Override
- public final int hashCode()
- {
- return m_value.hashCode();
- }
- @Override
- public final String toString()
- {
- return MessageFormat.format( "{0}", m_value );
- }
- @Override
- public final boolean equals( final Object p_object )
- {
- return ( p_object instanceof IExecution ) && ( this.hashCode() == p_object.hashCode() );
- }
- @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
- )
- {
- p_return.add( m_value );
- return CFuzzyValue.from( true );
- }
- @Nonnull
- @Override
- public final Stream<IVariable<?>> variables()
- {
- return this.getVariableSet( m_value );
- }
- /**
- * returns a variable set based on the generic type
- *
- * @param p_value term type
- * @return variable set (empty)
- */
- @Nonnull
- private Stream<IVariable<?>> getVariableSet( final T p_value )
- {
- return Stream.<IVariable<?>>empty();
- }
- }
- /**
- * inner class for encapsulating action execution
- *
- * @warning execution must run variable repacing before action calling
- */
- private static class CActionWrapper implements IExecution
- {
- /**
- * serial id
- */
- private static final long serialVersionUID = 5531271525053969711L;
- /**
- * parallel execution flag
- */
- private final boolean m_parallel;
- /**
- * action
- */
- private final IAction m_action;
- /**
- * arguments as map with index for prevent
- * result order on parallel execution
- */
- private final Map<Integer, IExecution> m_arguments;
- /**
- * ctor
- *
- * @param p_literal action literal
- * @param p_actions actions
- */
- CActionWrapper( @Nonnull final ILiteral p_literal, @Nonnull final Map<IPath, IAction> p_actions )
- {
- // check parallel and inner execution
- m_parallel = p_literal.hasAt();
- // resolve action
- m_action = p_actions.get( p_literal.fqnfunctor() );
- if ( Objects.isNull( m_action ) )
- throw new CIllegalArgumentException( org.lightjason.agentspeak.common.CCommon.languagestring( this, "actionunknown", p_literal ) );
- // check number of arguments and add action to the score cache
- if ( p_literal.orderedvalues().count() < m_action.minimalArgumentNumber() )
- throw new CIllegalArgumentException(
- org.lightjason.agentspeak.common.CCommon.languagestring( this, "argumentnumber", p_literal, m_action.minimalArgumentNumber() ) );
- // resolve action arguments
- m_arguments = Collections.unmodifiableMap( this.createSubExecutions( p_literal.orderedvalues().collect( Collectors.toList() ), p_actions ) );
- }
- @Override
- public final int hashCode()
- {
- return m_action.hashCode() + m_arguments.hashCode();
- }
- @Override
- public final String toString()
- {
- return MessageFormat.format( "{0}({1})", m_action, StringUtils.join( m_arguments.values(), ", " ) );
- }
- @Override
- public final boolean equals( final Object p_object )
- {
- return ( p_object instanceof IExecution ) && ( this.hashCode() == p_object.hashCode() );
- }
- @Nonnull
- @Override
- public IFuzzyValue<Boolean> execute( final boolean p_parallel, @Nonnull final IContext p_context,
- @Nonnull final List<ITerm> p_argument, @Nonnull final List<ITerm> p_return
- )
- {
- return m_action.execute(
- m_parallel, p_context,
- this.subexecute( p_context, m_arguments ),
- p_return
- );
- }
- @Nonnull
- @Override
- public final Stream<IVariable<?>> variables()
- {
- return m_action.variables();
- }
- /**
- * builds the map of execution arguments
- *
- * @param p_elements collection with literal elements (term- / literal list of attributes & annotations)
- * @param p_actions map with actions
- * @return ordered execution structure
- */
- @Nonnull
- private Map<Integer, IExecution> createSubExecutions( @Nonnull final Collection<? extends ITerm> p_elements,
- @Nonnull final Map<IPath, IAction> p_actions )
- {
- // convert collection to list and build map with indices
- final List<? extends ITerm> l_elements = new LinkedList<>( p_elements );
- return IntStream.range( 0, l_elements.size() )
- .boxed()
- .collect(
- Collectors.toMap(
- i -> i,
- i ->
- {
- final ITerm l_term = l_elements.get( i );
- return l_term instanceof ILiteral
- ? new CActionWrapper( l_term.term(), p_actions )
- : new CTermWrapper<>( l_term );
- }
- )
- );
- }
- /**
- * execute inner structures
- *
- * @param p_context context structure
- * @param p_execution map with execution elements
- * @return return arguments of execution (flat list)
- */
- @Nonnull
- private List<ITerm> subexecute( @Nonnull final IContext p_context, @Nonnull final Map<Integer, IExecution> p_execution )
- {
- return Collections.unmodifiableList( CCommon.replaceFromContext(
- p_context,
- ( m_parallel
- ? p_execution.entrySet().parallelStream()
- : p_execution.entrySet()
- .stream() )
- .flatMap( i ->
- {
- final List<ITerm> l_return = new LinkedList<>();
- i.getValue().execute( m_parallel, p_context, Collections.emptyList(), l_return );
- return l_return.stream();
- } )
- .collect( Collectors.toList() )
- ) );
- }
- }
- }