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62 lines
1.6 KiB
PHP
62 lines
1.6 KiB
PHP
<?php
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/**
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* An redundancy Node inside a RelationGraph
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*/
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class RelationRedundancyNode extends GraphNode
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{
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public function __construct($oGraph, $sId, $iMinUp, $fThreshold)
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{
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parent::__construct($oGraph, $sId);
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$this->SetProperty('min_up', $iMinUp);
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$this->SetProperty('threshold', $fThreshold);
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}
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/**
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* Make a normalized ID to ensure the uniqueness of such a node
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*
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* @param string $sRelCode
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* @param string $sNeighbourId
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* @param $oSourceObject
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* @param \DBObject $oSinkObject
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*
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* @return string
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*/
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public static function MakeId($sRelCode, $sNeighbourId, $oSourceObject, $oSinkObject)
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{
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return 'redundancy-'.$sRelCode.'-'.$sNeighbourId.'-'.get_class($oSinkObject).'::'.$oSinkObject->GetKey();
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}
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/**
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* Formatting for GraphViz
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*
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* @param bool $bNoLabel
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*
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* @return string
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*/
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public function GetDotAttributes($bNoLabel = false)
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{
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$sDisplayThreshold = sprintf('%.1f', $this->GetProperty('threshold'));
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$sDot = 'shape=doublecircle,fillcolor=indianred,fontcolor=papayawhip,label="'.$sDisplayThreshold.'"';
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return $sDot;
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}
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/**
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* Recursively mark the objects nodes as reached, unless we get stopped by a redundancy node
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*
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* @param string $sProperty
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* @param $value
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*/
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public function ReachDown($sProperty, $value)
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{
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$this->SetProperty($sProperty.'_count', $this->GetProperty($sProperty.'_count', 0) + 1);
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if ($this->GetProperty($sProperty.'_count') > $this->GetProperty('threshold')) {
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// Looping... though there should be only ONE SINGLE outgoing edge
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foreach ($this->GetOutgoingEdges() as $oOutgoingEdge) {
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// Recurse
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$oOutgoingEdge->GetSinkNode()->ReachDown($sProperty, $value);
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}
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}
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}
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} |