TextRenderer::serialize() - Code Metrics - Inspection of "Fix undefined indicies errors" - krenor/prometheus-client - Measure and Improve Code Quality continuously with Scrutinizer

Completed

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by Stan

created 2018-06-04 10:55 UTC

TextRenderer::serialize() A

↳ Parent: TextRenderer

Complexity

Conditions	2
Paths	2

Size

Total Lines	13
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	2

Importance

Changes

Metric	Value
cc	2
eloc	7
nc	2
nop	1
dl	0
loc	13
ccs	8
cts	8
cp	1
crap	2
rs	9.4285
c	0
b	0
f	0

<?php

namespace Krenor\Prometheus\Renderer;

use Krenor\Prometheus\Sample;
use Tightenco\Collect\Support\Collection;
use Krenor\Prometheus\MetricFamilySamples;
use Krenor\Prometheus\Contracts\Renderable;

class TextRenderer implements Renderable
{
    /**
     * {@inheritdoc}
     */
    public function render(Collection $metrics): string
    {
        $text = $metrics->flatMap(function (MetricFamilySamples $family) {
            return $this->transform($family);
        })->implode("\n");

        return "{$text}\n";
    }

    /**
     * @param Collection $labels
     *
     * @return string
     */
    protected function serialize(Collection $labels): string
    {
        $quoted = $labels->map(function (string $value) {
            return "\"{$value}\"";
        });

        $serialized = urldecode(
            http_build_query($quoted->toArray(), '', ',')
        );

        return !$serialized
            ? $serialized
            : "{{$serialized}}";
    }

    /**
     * @param MetricFamilySamples $family
     *
     * @return Collection
     */
    protected function transform(MetricFamilySamples $family): Collection
    {
        $metric = $family->metric();

        $lines = new Collection([
            "# HELP {$metric->key()} {$metric->description()}",
            "# TYPE {$metric->key()} {$metric->type()}",
        ]);

        $metrics = $family->samples()->map(function (Sample $sample) {
            return "{$sample->name()}{$this->serialize($sample->labels())} {$sample->value()}";
        })->values();

        return $lines->merge($metrics);
    }
}


1		<?php
2
3		namespace Krenor\Prometheus\Renderer;
4
5		use Krenor\Prometheus\Sample;
6		use Tightenco\Collect\Support\Collection;
7		use Krenor\Prometheus\MetricFamilySamples;
8		use Krenor\Prometheus\Contracts\Renderable;
9
10		class TextRenderer implements Renderable
11		{
12		/**
13		* {@inheritdoc}
14		*/
15	32	public function render(Collection $metrics): string
16		{
17		$text = $metrics->flatMap(function (MetricFamilySamples $family) {
18	32	return $this->transform($family);
19	32	})->implode("\n");
20
21	32	return "{$text}\n";
22		}
23
24		/**
25		* @param Collection $labels
26		*
27		* @return string
28		*/
29	32	protected function serialize(Collection $labels): string
30		{
31		$quoted = $labels->map(function (string $value) {
32	31	return "\"{$value}\"";
33	32	});
34
35	32	$serialized = urldecode(
36	32	http_build_query($quoted->toArray(), '', ',')
37		);
38
39	32	return !$serialized
40	1	? $serialized
41	32	: "{{$serialized}}";
42		}
43
44		/**
45		* @param MetricFamilySamples $family
46		*
47		* @return Collection
48		*/
49	32	protected function transform(MetricFamilySamples $family): Collection
50		{
51	32	$metric = $family->metric();
52
53	32	$lines = new Collection([
54	32	"# HELP {$metric->key()} {$metric->description()}",
55	32	"# TYPE {$metric->key()} {$metric->type()}",
56		]);
57
58		$metrics = $family->samples()->map(function (Sample $sample) {
59	32	return "{$sample->name()}{$this->serialize($sample->labels())} {$sample->value()}";
60	32	})->values();
61
62	32	return $lines->merge($metrics);
63		}
64		}
65

krenor / prometheus-client

Push — develop ( 4bf157...8c6599 )

TextRenderer::serialize() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

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