[12] | 1 | <?php
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| 2 | // ----------------------------------------------------------------------------------
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| 3 | // Class: infModel
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| 4 | // ----------------------------------------------------------------------------------
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| 5 |
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| 6 | /**
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| 7 | * A InfModel Model extends a MemModel , by adding the ability to infer statements from
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| 8 | * known statements and RDFS/OWL-Schematas.
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| 9 | * It uses the same interface as MemModel, thus making the
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| 10 | * infererence process hidden.
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| 11 | *
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| 12 | * @version $Id: InfModel.php 290 2006-06-22 12:23:24Z tgauss $
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| 13 | * @author Daniel Westphal <mail at d-westphal dot de>
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| 14 | *
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| 15 | * @package infModel
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| 16 | * @access public
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| 17 | */
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| 18 |
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| 19 | class InfModel extends MemModel
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| 20 | {
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| 21 | /**
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| 22 | * Array that holds the objects of the class Infrule,
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| 23 | * which were assigned by the _addToInference() function
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| 24 | *
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| 25 | * @var array
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| 26 | * @access private
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| 27 | */
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| 28 | var $infRules;
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| 29 |
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| 30 | /**
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| 31 | * Array of URI-Strings that produces Infrules.
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| 32 | *
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| 33 | * @var array
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| 34 | * @access private
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| 35 | */
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| 36 | var $supportedInference;
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| 37 |
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| 38 | /**
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| 39 | * Array of the connection between the infrules and the statement
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| 40 | * that assigned those rules.
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| 41 | * array[2][3]=true;array[2][5]=true means, that statement 2
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| 42 | * assigned rule 3 & 5 to the model.
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| 43 | *
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| 44 | * @var array
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| 45 | * @access private
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| 46 | */
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| 47 | var $statementRuleIndex;
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| 48 |
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| 49 | /**
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| 50 | * Array of the infRule triggers and the matching infrules.
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| 51 | * $this->infRulesTriggerIndex['s'] for subject index, ['p'] for predicates,
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| 52 | * and ['o'] for objects.
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| 53 | *
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| 54 | * @var array
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| 55 | * @access private
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| 56 | */
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| 57 | var $infRulesTriggerIndex;
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| 58 |
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| 59 | /**
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| 60 | * Array of the infRule entailments and the matching infrules.
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| 61 | * $this->infRulesEntailIndex['s'] for subject index, ['p'] for predicates,
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| 62 | * and ['o'] for objects.
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| 63 | *
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| 64 | * @var array
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| 65 | * @access private
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| 66 | */
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| 67 | var $infRulesEntailIndex;
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| 68 |
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| 69 |
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| 70 |
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| 71 | /**
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| 72 | * Constructor
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| 73 | * You can supply a base_uri
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| 74 | *
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| 75 | * @param string $baseURI
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| 76 | * @access public
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| 77 | */
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| 78 | function InfModel ($baseURI = NULL)
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| 79 | {
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| 80 | //call the memmodel constructor method
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| 81 | parent::MemModel($baseURI);
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| 82 | //initialise vars
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| 83 | $this->infRulesTriggerIndex['s']=array();
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| 84 | $this->infRulesTriggerIndex['p']=array();
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| 85 | $this->infRulesTriggerIndex['o']=array();
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| 86 | $this->infRulesEntailIndex['s']=array();
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| 87 | $this->infRulesEntailIndex['p']=array();
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| 88 | $this->infRulesEntailIndex['o']=array();
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| 89 | $this->infRules=array();
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| 90 | $this->statementRuleIndex = array();
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| 91 | //arraylist of predicate labels that shall add inference rules
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| 92 | //to the model
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| 93 | //The constants, wich statements will create rules can be configured in constants.php
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| 94 | if (INF_RES_SUBCLASSOF)
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| 95 | $this->supportedInference[] = RDF_SCHEMA_URI.RDFS_SUBCLASSOF;
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| 96 |
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| 97 | if (INF_RES_SUBPROPERTYOF)
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| 98 | $this->supportedInference[] = RDF_SCHEMA_URI.RDFS_SUBPROPERTYOF;
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| 99 |
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| 100 | if (INF_RES_RANGE)
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| 101 | $this->supportedInference[] = RDF_SCHEMA_URI.RDFS_RANGE;
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| 102 |
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| 103 | if (INF_RES_DOMAIN)
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| 104 | $this->supportedInference[] = RDF_SCHEMA_URI.RDFS_DOMAIN;
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| 105 |
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| 106 | if (INF_RES_OWL_SAMEAS)
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| 107 | $this->supportedInference[] = OWL_URI.OWL_SAME_AS;
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| 108 |
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| 109 | if (INF_RES_OWL_INVERSEOF)
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| 110 | $this->supportedInference[] = OWL_URI.OWL_INVERSE_OF;
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| 111 |
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| 112 | //Rule: rdfs12
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| 113 | if (INF_RES_RULE_RDFS12)
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| 114 | {
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| 115 | $infRule=new InfRule();
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| 116 | $infRule->setTrigger(null,new Resource(RDF_NAMESPACE_URI.RDF_TYPE),new Resource(RDF_SCHEMA_URI.'ContainerMembershipProperty'));
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| 117 | $infRule->setEntailment('<s>',new Resource(RDF_SCHEMA_URI.RDFS_SUBPROPERTYOF),new Resource(RDF_SCHEMA_URI.'member'));
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| 118 | $this->_addInfRule($infRule,'base');
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| 119 | }
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| 120 |
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| 121 | //Rule: rdfs6
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| 122 | if (INF_RES_RULE_RDFS6)
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| 123 | {
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| 124 | $infRule=new InfRule();
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| 125 | $infRule->setTrigger(null,new Resource(RDF_NAMESPACE_URI.RDF_TYPE),new Resource(RDF_NAMESPACE_URI.RDF_PROPERTY));
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| 126 | $infRule->setEntailment('<s>',new Resource(RDF_SCHEMA_URI.RDFS_SUBPROPERTYOF),'<s>');
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| 127 | $this->_addInfRule($infRule,'base');
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| 128 | }
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| 129 |
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| 130 | //Rule: rdfs8
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| 131 | if (INF_RES_RULE_RDFS8)
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| 132 | {
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| 133 | $infRule=new InfRule();
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| 134 | $infRule->setTrigger(null,new Resource(RDF_NAMESPACE_URI.RDF_TYPE),new Resource(RDF_SCHEMA_URI.RDFS_CLASS));
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| 135 | $infRule->setEntailment('<s>',new Resource(RDF_SCHEMA_URI.RDFS_SUBCLASSOF),new Resource(RDF_SCHEMA_URI.RDFS_RESOURCE));
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| 136 | $this->_addInfRule($infRule,'base');
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| 137 |
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| 138 | }
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| 139 |
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| 140 | //Rule: rdfs10
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| 141 | if (INF_RES_RULE_RDFS10)
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| 142 | {
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| 143 | $infRule=new InfRule();
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| 144 | $infRule->setTrigger(null,new Resource(RDF_NAMESPACE_URI.RDF_TYPE),new Resource(RDF_SCHEMA_URI.RDFS_CLASS));
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| 145 | $infRule->setEntailment('<s>',new Resource(RDF_SCHEMA_URI.RDFS_SUBCLASSOF),'<s>');
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| 146 | $this->_addInfRule($infRule,'base');
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| 147 | }
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| 148 |
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| 149 | //Rule: rdfs13
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| 150 | if (INF_RES_RULE_RDFS13)
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| 151 | {
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| 152 | $infRule=new InfRule();
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| 153 | $infRule->setTrigger(null,new Resource(RDF_NAMESPACE_URI.RDF_TYPE),new Resource(RDF_SCHEMA_URI.RDFS_DATATYPE));
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| 154 | $infRule->setEntailment('<s>',new Resource(RDF_SCHEMA_URI.RDFS_SUBCLASSOF),new Resource(RDF_SCHEMA_URI.RDFS_LITERAL));
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| 155 | $this->_addInfRule($infRule,'base');
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| 156 | }
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| 157 |
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| 158 | }
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| 159 |
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| 160 | /**
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| 161 | * Adds a new triple to the Model without checking if the statement
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| 162 | * is already in the Model.
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| 163 | * So if you want a duplicate free MemModel use the addWithoutDuplicates()
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| 164 | * function (which is slower then add())
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| 165 | * If the statement's predicate label is supported by the inference,
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| 166 | * the matching rules are added.
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| 167 | *
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| 168 | * @param object Statement $statement
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| 169 | * @access public
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| 170 | * @throws PhpError
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| 171 | */
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| 172 | function add($statement)
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| 173 | {
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| 174 | parent::add($statement);
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| 175 | //if the predicate is supported by the inference
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| 176 | if (in_array($statement->getLabelPredicate(),$this->supportedInference))
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| 177 | {
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| 178 | $this->_addToInference($statement);
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| 179 | };
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| 180 | }
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| 181 |
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| 182 | /**
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| 183 | * This function analyses the statement's predicate and adds the
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| 184 | * matching infrule to the model.
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| 185 | *
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| 186 | * @param object Statement $statement
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| 187 | * @access private
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| 188 | */
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| 189 | function _addToInference($statement)
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| 190 | {
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| 191 | $predicateLabel=$statement->getLabelPredicate();
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| 192 | //get the position of the the statement in the model
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| 193 | end($this->triples);
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| 194 | $statementPosition=key($this->triples);
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| 195 |
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| 196 | switch ($predicateLabel)
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| 197 | {
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| 198 | case RDF_SCHEMA_URI.RDFS_SUBPROPERTYOF :
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| 199 | //create a new rule
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| 200 | $infRule=new InfRule();
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| 201 | //set the trigger to match all statements, having a
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| 202 | //predicate, that matches the subject of the statement that
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| 203 | //created this rule.
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| 204 | $infRule->setTrigger(null,$statement->getSubject(),null);
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| 205 | //set the infrule to return a statement, having the same
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| 206 | //subject and object as the statement, that asked for an
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| 207 | //entailment, and having the object of the statement,
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| 208 | //that created this rule as predicate.
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| 209 | $infRule->setEntailment('<s>',$statement->getObject(),'<o>');
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| 210 | //add the infule to Model, Statement/Rule-Index,
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| 211 | //and Rule/Trigger (or Rule/Entailment) index
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| 212 | $this->_addInfRule($infRule,$statementPosition);
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| 213 | break;
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| 214 |
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| 215 | case RDF_SCHEMA_URI.RDFS_SUBCLASSOF :
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| 216 | $infRule=new InfRule();
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| 217 | $infRule->setTrigger(null,new Resource(RDF_NAMESPACE_URI.RDF_TYPE),$statement->getSubject());
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| 218 | $infRule->setEntailment('<s>',new Resource(RDF_NAMESPACE_URI.RDF_TYPE),$statement->getObject());
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| 219 | $this->infRules[]=$infRule;
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| 220 | $this->_addInfRule($infRule,$statementPosition);
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| 221 | break;
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| 222 |
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| 223 | case RDF_SCHEMA_URI.RDFS_DOMAIN :
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| 224 | $infRule=new InfRule();
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| 225 | $infRule->setTrigger(null,$statement->getSubject(),null);
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| 226 | $infRule->setEntailment('<s>',new Resource(RDF_NAMESPACE_URI.RDF_TYPE),$statement->getObject());
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| 227 | $this->infRules[]=$infRule;
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| 228 | $this->_addInfRule($infRule,$statementPosition);
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| 229 | break;
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| 230 |
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| 231 | case RDF_SCHEMA_URI.RDFS_RANGE :
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| 232 | $infRule=new InfRule();
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| 233 | $infRule->setTrigger(null,$statement->getSubject(),null);
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| 234 | $infRule->setEntailment('<o>',new Resource(RDF_NAMESPACE_URI.RDF_TYPE),$statement->getObject());
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| 235 | $this->infRules[]=$infRule;
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| 236 | $this->_addInfRule($infRule,$statementPosition);
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| 237 | break;
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| 238 |
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| 239 | case OWL_URI.OWL_INVERSE_OF :
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| 240 | $infRule=new InfRule();
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| 241 | $infRule->setTrigger(null,$statement->getSubject(),null);
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| 242 | $infRule->setEntailment('<o>',$statement->getObject(),'<s>');
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| 243 | $this->infRules[]=$infRule;
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| 244 | $this->_addInfRule($infRule,$statementPosition);
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| 245 |
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| 246 | $infRule=new InfRule();
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| 247 | $infRule->setTrigger(null,$statement->getObject(),null);
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| 248 | $infRule->setEntailment('<o>',$statement->getSubject(),'<s>');
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| 249 | $this->infRules[]=$infRule;
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| 250 | $this->_addInfRule($infRule,$statementPosition);
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| 251 | break;
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| 252 |
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| 253 | case OWL_URI.OWL_SAME_AS :
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| 254 | $infRule=new InfRule();
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| 255 | $infRule->setTrigger($statement->getSubject(),null,null);
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| 256 | $infRule->setEntailment($statement->getObject(),'<p>','<o>');
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| 257 | $this->_addInfRule($infRule,$statementPosition);
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| 258 |
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| 259 | $infRule=new InfRule();
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| 260 | $infRule->setTrigger($statement->getObject(),null,null);
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| 261 | $infRule->setEntailment($statement->getSubject(),'<p>','<o>');
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| 262 | $this->_addInfRule($infRule,$statementPosition);
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| 263 |
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| 264 | $infRule=new InfRule();
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| 265 | $infRule->setTrigger(null,$statement->getSubject(),null);
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| 266 | $infRule->setEntailment('<s>',$statement->getObject(),'<o>');
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| 267 | $this->_addInfRule($infRule,$statementPosition);
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| 268 |
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| 269 | $infRule=new InfRule();
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| 270 | $infRule->setTrigger(null,$statement->getObject(),null);
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| 271 | $infRule->setEntailment('<s>',$statement->getSubject(),'<o>');
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| 272 | $this->_addInfRule($infRule,$statementPosition);
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| 273 |
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| 274 | $infRule=new InfRule();
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| 275 | $infRule->setTrigger(null,null,$statement->getSubject());
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| 276 | $infRule->setEntailment('<s>','<p>',$statement->getObject());
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| 277 | $this->_addInfRule($infRule,$statementPosition);
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| 278 |
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| 279 | $infRule=new InfRule();
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| 280 | $infRule->setTrigger(null,null,$statement->getObject());
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| 281 | $infRule->setEntailment('<s>','<p>',$statement->getSubject());
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| 282 | $this->_addInfRule($infRule,$statementPosition);
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| 283 | break;
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| 284 | };
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| 285 | }
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| 286 |
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| 287 | /**
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| 288 | * This function checks, which infrules were added by the statement and
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| 289 | * removes those.
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| 290 | *
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| 291 | * @param object Statement $statement
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| 292 | * @return integer
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| 293 | * @access private
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| 294 | */
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| 295 | function _removeFromInference($statement)
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| 296 | {
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| 297 | $return= array();
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| 298 | $statementPosition=-1;
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| 299 | do
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| 300 | {
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| 301 | //get the position of the statement that should be removed
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| 302 | $statementPosition=$this->findFirstMatchOff($statement->getSubject(),
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| 303 | $statement->getPredicate(),
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| 304 | $statement->getObject(),
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| 305 | $statementPosition+1);
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| 306 | if ($statementPosition!=-1)
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| 307 | {
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| 308 | //if it added any rules
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| 309 | if (isset ($this->statementRuleIndex[$statementPosition]))
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| 310 | {
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| 311 | //remove all rules
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| 312 | foreach ($this->statementRuleIndex[$statementPosition] as $key => $value)
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| 313 | {
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| 314 | //remove from Rule-Trigger Index
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| 315 | if (is_a($this,'InfModelF'))
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| 316 | {
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| 317 | $trigger=$this->infRules[$key]->getTrigger();
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| 318 |
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| 319 | if(is_a($trigger['s'],'Node'))
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| 320 | {
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| 321 | $subjectLabel=$trigger['s']->getLabel();
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| 322 | } else
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| 323 | {
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| 324 | $subjectLabel='null';
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| 325 | }
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| 326 | unset ($this->infRulesTriggerIndex['s'][$subjectLabel][array_search($key,$this->infRulesTriggerIndex['s'][$subjectLabel])]);
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| 327 |
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| 328 | if(is_a($trigger['p'],'Node'))
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| 329 | {
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| 330 | $predicateLabel=$trigger['p']->getLabel();
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| 331 | } else
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| 332 | {
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| 333 | $predicateLabel='null';
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| 334 | }
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| 335 | unset ($this->infRulesTriggerIndex['p'][$predicateLabel][array_search($key,$this->infRulesTriggerIndex['p'][$predicateLabel])]);
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| 336 |
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| 337 | if(is_a($trigger['o'],'Node'))
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| 338 | {
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| 339 | $objectLabel=$trigger['o']->getLabel();
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| 340 | } else
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| 341 | {
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| 342 | $objectLabel='null';
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| 343 | }
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| 344 | unset ($this->infRulesTriggerIndex['o'][$objectLabel][array_search($key,$this->infRulesTriggerIndex['o'][$objectLabel])]);
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| 345 | } else
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| 346 | //remove from Rule-Entailment Index
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| 347 | {
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| 348 | $entailment=$this->infRules[$key]->getEntailment();
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| 349 |
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| 350 | if(is_a($entailment['s'],'Node'))
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| 351 | {
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| 352 | $subjectLabel=$entailment['s']->getLabel();
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| 353 | } else
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| 354 | {
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| 355 | $subjectLabel='null';
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| 356 | }
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| 357 | unset ($this->infRulesEntailIndex['s'][$subjectLabel][array_search($key,$this->infRulesEntailIndex['s'][$subjectLabel])]);
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| 358 |
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| 359 |
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| 360 | if(is_a($entailment['p'],'Node'))
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| 361 | {
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| 362 | $predicateLabel=$entailment['p']->getLabel();
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| 363 | } else
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| 364 | {
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| 365 | $predicateLabel='null';
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| 366 | }
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| 367 | unset ($this->infRulesEntailIndex['p'][$predicateLabel][array_search($key,$this->infRulesEntailIndex['p'][$predicateLabel])]);
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| 368 |
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| 369 | if(is_a($entailment['o'],'Node'))
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| 370 | {
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| 371 | $objectLabel=$entailment['o']->getLabel();
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| 372 | } else
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| 373 | {
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| 374 | $objectLabel='null';
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| 375 | }
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| 376 | unset ($this->infRulesEntailIndex['o'][$objectLabel][array_search($key,$this->infRulesEntailIndex['o'][$objectLabel])]);
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| 377 | }
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| 378 | //remove from statement-Rule Index
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| 379 | unset ($this->infRules[$key]);
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| 380 | }
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| 381 | unset($this->statementRuleIndex[$statementPosition]);
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| 382 | $return[]=$statementPosition;
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| 383 | };
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| 384 | }
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| 385 |
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| 386 | } while($statementPosition!=-1);
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| 387 |
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| 388 | //return the positions of the statements to be removed OR emty array
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| 389 | //if nothing was found.
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| 390 | return $return;
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| 391 | }
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| 392 |
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| 393 | /**
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| 394 | * Returns a model, containing all Statements, having a Predicate, that
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| 395 | * is supported by the inference.
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| 396 | *
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| 397 | * @return object Model
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| 398 | * @access public
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| 399 | */
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| 400 | function getSchema()
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| 401 | {
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| 402 | $res=new MemModel();
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| 403 | //Search the base-model for all statements, having a Predicate, that
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| 404 | //is supported by the inference.
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| 405 | foreach ($this->supportedInference as $inferencePredicateLabel)
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| 406 | {
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| 407 | $res->addModel($this->find(null, new Resource($inferencePredicateLabel), null));
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| 408 | }
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| 409 | return $res;
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| 410 | }
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| 411 |
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| 412 | /**
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| 413 | * General method to replace nodes of a MemModel.
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| 414 | * This function is disabled in the Inference Model.
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| 415 | *
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| 416 | * @param object Node $subject
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| 417 | * @param object Node $predicate
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| 418 | * @param object Node $object
|
---|
| 419 | * @param object Node $replacement
|
---|
| 420 | * @access public
|
---|
| 421 | * @throws PhpError
|
---|
| 422 | */
|
---|
| 423 | function replace($subject, $predicate, $object, $replacement)
|
---|
| 424 | {
|
---|
| 425 |
|
---|
| 426 | $errmsg = RDFAPI_ERROR . '(class: InfModel; method: replace): This function is disabled in the Inference Model';
|
---|
| 427 | trigger_error($errmsg, E_USER_ERROR);
|
---|
| 428 | }
|
---|
| 429 |
|
---|
| 430 | /**
|
---|
| 431 | * Method to search for triples using Perl-style regular expressions.
|
---|
| 432 | * NULL input for any parameter will match anything.
|
---|
| 433 | * Example: $result = $m->find_regex( NULL, NULL, $regex );
|
---|
| 434 | * Finds all triples where the label of the object node matches the regular
|
---|
| 435 | * expression.
|
---|
| 436 | * Returns an empty MemModel if nothing is found.
|
---|
| 437 | *
|
---|
| 438 | * This function is disabled in the Inference Model
|
---|
| 439 | *
|
---|
| 440 | * @param string $subject_regex
|
---|
| 441 | * @param string $predicate_regex
|
---|
| 442 | * @param string $object_regex
|
---|
| 443 | * @return object MemModel
|
---|
| 444 | * @access public
|
---|
| 445 | */
|
---|
| 446 | function findRegex($subject_regex, $predicate_regex, $object_regex)
|
---|
| 447 | {
|
---|
| 448 |
|
---|
| 449 | $errmsg = RDFAPI_ERROR . '(class: InfModel; method: findRegex):
|
---|
| 450 | This function is disabled in the
|
---|
| 451 | Inference Model';
|
---|
| 452 | trigger_error($errmsg, E_USER_ERROR);
|
---|
| 453 | }
|
---|
| 454 |
|
---|
| 455 | /**
|
---|
| 456 | * Returns all tripels of a certain vocabulary.
|
---|
| 457 | * $vocabulary is the namespace of the vocabulary inluding a # : / char at
|
---|
| 458 | * the end.
|
---|
| 459 | * e.g. http://www.w3.org/2000/01/rdf-schema#
|
---|
| 460 | * Returns an empty MemModel if nothing is found.
|
---|
| 461 | *
|
---|
| 462 | * This function is disabled in the Inference Model.
|
---|
| 463 | *
|
---|
| 464 | * @param string $vocabulary
|
---|
| 465 | * @return object MemModel
|
---|
| 466 | * @access public
|
---|
| 467 | */
|
---|
| 468 | function findVocabulary($vocabulary)
|
---|
| 469 | {
|
---|
| 470 |
|
---|
| 471 | $errmsg = RDFAPI_ERROR . '(class: InfModel; method: findVocabulary):
|
---|
| 472 | This function is disabled in the
|
---|
| 473 | Inference Model';
|
---|
| 474 | trigger_error($errmsg, E_USER_ERROR);
|
---|
| 475 | }
|
---|
| 476 |
|
---|
| 477 |
|
---|
| 478 | /**
|
---|
| 479 | * Adds the URI or NULL to the Infrule trigger or entailment index.
|
---|
| 480 | *
|
---|
| 481 | *
|
---|
| 482 | * @param object infrule $infRule
|
---|
| 483 | * @param integer $infRulePosition
|
---|
| 484 | * @access private
|
---|
| 485 | */
|
---|
| 486 | function _addInfruleToIndex(& $infRule,& $infRulePosition)
|
---|
| 487 | {
|
---|
| 488 | //Add the rule only to the trigger index, if it is a InfFModel
|
---|
| 489 | if (is_a($this,'InfModelF'))
|
---|
| 490 | {
|
---|
| 491 | //get the trigger
|
---|
| 492 | $trigger = $infRule->getTrigger();
|
---|
| 493 | //evaluate and set the index
|
---|
| 494 | if ($trigger['s'] == null)
|
---|
| 495 | {
|
---|
| 496 | $this->infRulesTriggerIndex['s']['null'][]=$infRulePosition;
|
---|
| 497 | } else
|
---|
| 498 | {
|
---|
| 499 | $this->infRulesTriggerIndex['s'][$trigger['s']->getLabel()][]=$infRulePosition;
|
---|
| 500 | };
|
---|
| 501 |
|
---|
| 502 | if ($trigger['p'] == null)
|
---|
| 503 | {
|
---|
| 504 | $this->infRulesTriggerIndex['p']['null'][]=$infRulePosition;
|
---|
| 505 | } else
|
---|
| 506 | {
|
---|
| 507 | $this->infRulesTriggerIndex['p'][$trigger['p']->getLabel()][]=$infRulePosition;
|
---|
| 508 | };
|
---|
| 509 |
|
---|
| 510 | if ($trigger['o'] == null)
|
---|
| 511 | {
|
---|
| 512 | $this->infRulesTriggerIndex['o']['null'][]=$infRulePosition;
|
---|
| 513 | } else
|
---|
| 514 | {
|
---|
| 515 | $this->infRulesTriggerIndex['o'][$trigger['o']->getLabel()][]=$infRulePosition;
|
---|
| 516 | };
|
---|
| 517 | } else
|
---|
| 518 | //add to entailment Index if it is a BModel
|
---|
| 519 | {
|
---|
| 520 | //get the entailment
|
---|
| 521 | $entailment = $infRule->getEntailment();
|
---|
| 522 | //evaluate the entailment and add to index
|
---|
| 523 | if (!is_a($entailment['s'],'Node'))
|
---|
| 524 | {
|
---|
| 525 | $this->infRulesEntailIndex['s']['null'][]=$infRulePosition;
|
---|
| 526 | } else
|
---|
| 527 | {
|
---|
| 528 | $this->infRulesEntailIndex['s'][$entailment['s']->getLabel()][]=$infRulePosition;
|
---|
| 529 | };
|
---|
| 530 |
|
---|
| 531 | if (!is_a($entailment['p'],'Node'))
|
---|
| 532 | {
|
---|
| 533 | $this->infRulesEntailIndex['p']['null'][]=$infRulePosition;
|
---|
| 534 | } else
|
---|
| 535 | {
|
---|
| 536 | $this->infRulesEntailIndex['p'][$entailment['p']->getLabel()][]=$infRulePosition;
|
---|
| 537 | };
|
---|
| 538 |
|
---|
| 539 | if (!is_a($entailment['o'],'Node'))
|
---|
| 540 | {
|
---|
| 541 | $this->infRulesEntailIndex['o']['null'][]=$infRulePosition;
|
---|
| 542 | } else
|
---|
| 543 | {
|
---|
| 544 | $this->infRulesEntailIndex['o'][$entailment['o']->getLabel()][]=$infRulePosition;
|
---|
| 545 | };
|
---|
| 546 | };
|
---|
| 547 | }
|
---|
| 548 |
|
---|
| 549 | /**
|
---|
| 550 | * Searches the trigger-index for a matching trigger and returns an
|
---|
| 551 | * array of infRule positions.
|
---|
| 552 | *
|
---|
| 553 | *
|
---|
| 554 | * @param object infrule $infRule
|
---|
| 555 | * @return array integer
|
---|
| 556 | * @access private
|
---|
| 557 | */
|
---|
| 558 | function _findRuleTriggerInIndex($statement)
|
---|
| 559 | {
|
---|
| 560 | $return=array();
|
---|
| 561 | //a statement's subject matches all triggers with null and the same URI
|
---|
| 562 | $subjectLabel=$statement->getLabelSubject();
|
---|
| 563 | $inIndexS=array();
|
---|
| 564 | if (isset($this->infRulesTriggerIndex['s']['null']))
|
---|
| 565 | $inIndexS=array_values($this->infRulesTriggerIndex['s']['null']);
|
---|
| 566 | if (isset($this->infRulesTriggerIndex['s'][$subjectLabel]))
|
---|
| 567 | $inIndexS= array_merge($inIndexS,array_values($this->infRulesTriggerIndex['s'][$subjectLabel]));
|
---|
| 568 |
|
---|
| 569 | //a statement's predicate matches all triggers with null and the same URI
|
---|
| 570 | $predicateLabel=$statement->getLabelPredicate();
|
---|
| 571 | $inIndexP=array();
|
---|
| 572 | if (isset($this->infRulesTriggerIndex['p']['null']))
|
---|
| 573 | $inIndexP=array_values($this->infRulesTriggerIndex['p']['null']);
|
---|
| 574 | if (isset($this->infRulesTriggerIndex['p'][$predicateLabel]))
|
---|
| 575 | $inIndexP= array_merge($inIndexP,array_values($this->infRulesTriggerIndex['p'][$predicateLabel]));
|
---|
| 576 |
|
---|
| 577 | //a statement's object matches all triggers with null and the same URI
|
---|
| 578 | $objectLabel=$statement->getLabelObject();
|
---|
| 579 | $inIndexO=array();
|
---|
| 580 | if (isset($this->infRulesTriggerIndex['o']['null']))
|
---|
| 581 | $inIndexO=array_values($this->infRulesTriggerIndex['o']['null']);
|
---|
| 582 | if (isset($this->infRulesTriggerIndex['o'][$objectLabel]))
|
---|
| 583 | $inIndexO= array_merge($inIndexO,array_values($this->infRulesTriggerIndex['o'][$objectLabel]));
|
---|
| 584 |
|
---|
| 585 | //if an infrule position occurs in subject, predicate, and object index, add to result array.
|
---|
| 586 | foreach ($inIndexP as $positionP)
|
---|
| 587 | {
|
---|
| 588 | if (in_array($positionP,$inIndexO))
|
---|
| 589 | if (in_array($positionP,$inIndexS))
|
---|
| 590 | $return[]=$positionP;
|
---|
| 591 | }
|
---|
| 592 | return $return;
|
---|
| 593 | }
|
---|
| 594 |
|
---|
| 595 | /**
|
---|
| 596 | * Searches the Entailment-index for a matching Entailment and returns an
|
---|
| 597 | * array of infRule positions.
|
---|
| 598 | *
|
---|
| 599 | *
|
---|
| 600 | * @param node or null $subject
|
---|
| 601 | * @param node or null $predicate
|
---|
| 602 | * @param node or null $object
|
---|
| 603 | * @return array integer
|
---|
| 604 | * @access private
|
---|
| 605 | */
|
---|
| 606 | function _findRuleEntailmentInIndex($subject,$predicate,$object)
|
---|
| 607 | {
|
---|
| 608 | $return=array();
|
---|
| 609 | //a node matches all entailments with NULL or a matching URI
|
---|
| 610 | if(is_a($subject,'Node'))
|
---|
| 611 | {
|
---|
| 612 | $subjectLabel=$subject->getLabel();
|
---|
| 613 | $inIndexS=array();
|
---|
| 614 | if (isset($this->infRulesEntailIndex['s']['null'])) $inIndexS=array_values($this->infRulesEntailIndex['s']['null']);
|
---|
| 615 | if (isset($this->infRulesEntailIndex['s'][$subjectLabel])) $inIndexS= array_merge($inIndexS,array_values($this->infRulesEntailIndex['s'][$subjectLabel]));
|
---|
| 616 | } else
|
---|
| 617 | //if the subject search pattern is NULL, every rule will match the subject search patter
|
---|
| 618 | {
|
---|
| 619 | $inIndexS=array_keys($this->infRules);
|
---|
| 620 | }
|
---|
| 621 |
|
---|
| 622 | if(is_a($predicate,'Node'))
|
---|
| 623 | {
|
---|
| 624 | $predicateLabel=$predicate->getLabel();
|
---|
| 625 | $inIndexP=array();
|
---|
| 626 | if (isset($this->infRulesEntailIndex['p']['null'])) $inIndexP=array_values($this->infRulesEntailIndex['p']['null']);
|
---|
| 627 | if (isset($this->infRulesEntailIndex['p'][$predicateLabel])) $inIndexP= array_merge($inIndexP,array_values($this->infRulesEntailIndex['p'][$predicateLabel]));
|
---|
| 628 | } else
|
---|
| 629 | {
|
---|
| 630 | $inIndexP=array_keys($this->infRules);
|
---|
| 631 | }
|
---|
| 632 |
|
---|
| 633 | if(is_a($object,'Node'))
|
---|
| 634 | {
|
---|
| 635 | $objectLabel=$object->getLabel();
|
---|
| 636 | $inIndexO=array();
|
---|
| 637 | if (isset($this->infRulesEntailIndex['o']['null'])) $inIndexO=array_values($this->infRulesEntailIndex['o']['null']);
|
---|
| 638 | if (isset($this->infRulesEntailIndex['o'][$objectLabel])) $inIndexO= array_merge($inIndexO,array_values($this->infRulesEntailIndex['o'][$objectLabel]));
|
---|
| 639 | } else
|
---|
| 640 | {
|
---|
| 641 | $inIndexO=array_keys($this->infRules);
|
---|
| 642 | }
|
---|
| 643 |
|
---|
| 644 | //if an infrule position occurs in subject, predicate, and object index, add to result array.
|
---|
| 645 | foreach ($inIndexP as $positionP)
|
---|
| 646 | {
|
---|
| 647 | if (in_array($positionP,$inIndexO))
|
---|
| 648 | if (in_array($positionP,$inIndexS))
|
---|
| 649 | $return[]=$positionP;
|
---|
| 650 | }
|
---|
| 651 | return $return;
|
---|
| 652 | }
|
---|
| 653 |
|
---|
| 654 | /**
|
---|
| 655 | * Adds an InfRule to the InfModel.
|
---|
| 656 | * $statementPosition states the positiion of the statement, that created
|
---|
| 657 | * this rule, in the model->triples array.
|
---|
| 658 | *
|
---|
| 659 | *
|
---|
| 660 | * @param object Infrule $infRule
|
---|
| 661 | * @param integer $statementPosition
|
---|
| 662 | * @access private
|
---|
| 663 | */
|
---|
| 664 | function _addInfRule($infRule, $statementPosition)
|
---|
| 665 | {
|
---|
| 666 | //add the rule
|
---|
| 667 | $this->infRules[]=$infRule;
|
---|
| 668 | //get the position of the added rule in the model
|
---|
| 669 | end($this->infRules);
|
---|
| 670 | $rulePosition=key($this->infRules);
|
---|
| 671 | //add the information to the index, that this statement
|
---|
| 672 | //added this rule.
|
---|
| 673 | $this->statementRuleIndex[$statementPosition][$rulePosition]=true;
|
---|
| 674 | //add informations to index over trigger & entailment
|
---|
| 675 | $this->_addInfruleToIndex($infRule,$rulePosition);
|
---|
| 676 | }
|
---|
| 677 | }
|
---|
| 678 | ?>
|
---|