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1 | <?php |
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2 | |||
3 | namespace Elastica\Aggregation; |
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4 | |||
5 | /** |
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6 | * Class ScriptedMetric. |
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7 | * |
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8 | * @see https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-scripted-metric-aggregation.html |
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9 | */ |
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10 | class ScriptedMetric extends AbstractAggregation |
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11 | { |
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12 | /** |
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13 | * @param string $name the name if this aggregation |
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14 | * @param string|null $initScript Executed prior to any collection of documents |
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15 | * @param string|null $mapScript Executed once per document collected |
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16 | * @param string|null $combineScript Executed once on each shard after document collection is complete |
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17 | * @param string|null $reduceScript Executed once on the coordinating node after all shards have returned their results |
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18 | */ |
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19 | public function __construct( |
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20 | string $name, |
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21 | string $initScript = null, |
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22 | string $mapScript = null, |
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23 | string $combineScript = null, |
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24 | string $reduceScript = null |
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25 | ) { |
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26 | parent::__construct($name); |
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27 | if ($initScript) { |
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0 ignored issues
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28 | $this->setInitScript($initScript); |
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29 | } |
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30 | if ($mapScript) { |
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0 ignored issues
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The expression
$mapScript of type null|string is loosely compared to true ; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.
In PHP, under loose comparison (like For '' == false // true
'' == null // true
'ab' == false // false
'ab' == null // false
// It is often better to use strict comparison
'' === false // false
'' === null // false
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31 | $this->setMapScript($mapScript); |
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32 | } |
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33 | if ($combineScript) { |
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0 ignored issues
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show
The expression
$combineScript of type null|string is loosely compared to true ; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.
In PHP, under loose comparison (like For '' == false // true
'' == null // true
'ab' == false // false
'ab' == null // false
// It is often better to use strict comparison
'' === false // false
'' === null // false
Loading history...
|
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34 | $this->setCombineScript($combineScript); |
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35 | } |
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36 | if ($reduceScript) { |
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0 ignored issues
–
show
The expression
$reduceScript of type null|string is loosely compared to true ; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.
In PHP, under loose comparison (like For '' == false // true
'' == null // true
'ab' == false // false
'ab' == null // false
// It is often better to use strict comparison
'' === false // false
'' === null // false
Loading history...
|
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37 | $this->setReduceScript($reduceScript); |
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38 | } |
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39 | } |
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40 | |||
41 | /** |
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42 | * Executed once on each shard after document collection is complete. |
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43 | * |
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44 | * Allows the aggregation to consolidate the state returned from each shard. |
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45 | * If a combine_script is not provided the combine phase will return the aggregation variable. |
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46 | * |
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47 | * @param string $script |
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48 | * |
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49 | * @return $this |
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50 | */ |
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51 | public function setCombineScript(string $script): self |
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52 | { |
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53 | return $this->setParam('combine_script', $script); |
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54 | } |
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55 | |||
56 | /** |
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57 | * Executed prior to any collection of documents. |
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58 | * |
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59 | * Allows the aggregation to set up any initial state. |
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60 | * |
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61 | * @param string $script |
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62 | * |
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63 | * @return $this |
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64 | */ |
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65 | public function setInitScript(string $script): self |
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66 | { |
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67 | return $this->setParam('init_script', $script); |
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68 | } |
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69 | |||
70 | /** |
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71 | * Executed once per document collected. |
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72 | * |
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73 | * This is the only required script. If no combine_script is specified, the resulting state needs to be stored in |
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74 | * an object named _agg. |
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75 | * |
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76 | * @param string $script |
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77 | * |
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78 | * @return $this |
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79 | */ |
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80 | public function setMapScript(string $script): self |
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81 | { |
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82 | return $this->setParam('map_script', $script); |
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83 | } |
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84 | |||
85 | /** |
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86 | * Executed once on the coordinating node after all shards have returned their results. |
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87 | * |
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88 | * The script is provided with access to a variable _aggs which is an array of the result of the combine_script on |
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89 | * each shard. If a reduce_script is not provided the reduce phase will return the _aggs variable. |
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90 | * |
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91 | * @param string $script |
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92 | * |
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93 | * @return $this |
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94 | */ |
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95 | public function setReduceScript(string $script): self |
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96 | { |
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97 | return $this->setParam('reduce_script', $script); |
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98 | } |
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99 | } |
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100 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: