ProcessesExecutor   A
last analyzed

Complexity

Total Complexity 13

Size/Duplication

Total Lines 111
Duplicated Lines 18.02 %

Coupling/Cohesion

Components 1
Dependencies 2

Test Coverage

Coverage 100%

Importance

Changes 0
Metric Value
wmc 13
lcom 1
cbo 2
dl 20
loc 111
ccs 44
cts 44
cp 1
rs 10
c 0
b 0
f 0

5 Methods

Rating   Name   Duplication   Size   Complexity  
A __construct() 0 4 1
B execute() 0 40 6
A startCallback() 10 10 2
A callIterationCallback() 0 10 2
A finishCallback() 10 10 2

How to fix   Duplicated Code   

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

1
<?php
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namespace Saxulum\ProcessesExecutor;
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use Psr\Log\LoggerInterface;
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use Psr\Log\NullLogger;
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use Symfony\Component\Process\Process;
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final class ProcessesExecutor implements ProcessesExecutorInterface
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{
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    /**
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     * @var LoggerInterface
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     */
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    private $logger;
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    /**
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     * @param LoggerInterface|null $logger
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     */
19 7
    public function __construct(LoggerInterface $logger = null)
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    {
21 7
        $this->logger = $logger ?? new NullLogger();
22 7
    }
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    /**
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     * @param Process[]|array $processes
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     * @param callable|null   $startCallback
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     * @param callable|null   $iterationCallback
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     * @param callable|null   $finishCallback
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     * @param int             $parallelProcessCount
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     * @param int             $iterationSleepInMicroseconds
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     */
32 7
    public function execute(
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        array $processes,
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        callable $startCallback = null,
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        callable $iterationCallback = null,
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        callable $finishCallback = null,
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        int $parallelProcessCount = 8,
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        int $iterationSleepInMicroseconds = 0
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    ) {
40 7
        $this->logger->info(self::LOG_START);
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        /** @var Process[]|array $parallelProcesses */
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        $parallelProcesses = [];
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        do {
46 7
            foreach ($parallelProcesses as $key => $process) {
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                if (false === $process->isRunning()) {
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                    $this->finishCallback($process, $key, $finishCallback);
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                    unset($parallelProcesses[$key]);
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                }
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            }
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53 7
            while (count($parallelProcesses) < $parallelProcessCount) {
54 7
                if (null !== $key = key($processes)) {
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                    $process = current($processes);
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                    $process->start();
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                    $this->startCallback($process, $key, $startCallback);
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                    $parallelProcesses[$key] = $process;
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                    next($processes);
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                } else {
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                    break;
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                }
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            }
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65 7
            usleep($iterationSleepInMicroseconds);
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67 7
            $this->callIterationCallback($parallelProcesses, $iterationCallback);
68 7
        } while ([] !== $parallelProcesses);
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70 7
        $this->logger->info(self::LOG_FINISHED);
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    }
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    /**
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     * @param Process       $process
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     * @param mixed         $key
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     * @param callable|null $startCallback
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     */
78 6 View Code Duplication
    private function startCallback(Process $process, $key, callable $startCallback = null)
0 ignored issues
show
Duplication introduced by Dominik Zogg
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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79
    {
80 6
        if (null === $startCallback) {
81 4
            return;
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        }
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84 2
        $this->logger->debug(self::LOG_START_START_CALLBACK, ['process' => $process, 'key' => $key]);
85 2
        $startCallback($process, $key);
86 2
        $this->logger->debug(self::LOG_STOP_START_CALLBACK, ['process' => $process, 'key' => $key]);
87 2
    }
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    /**
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     * @param Process[]|array $processes
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     * @param callable|null   $iterationCallback
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     */
93 7
    private function callIterationCallback(array $processes, callable $iterationCallback = null)
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    {
95 7
        if (null === $iterationCallback) {
96 5
            return;
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        }
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99 2
        $this->logger->debug(self::LOG_START_ITERATION_CALLBACK, ['processes' => $processes]);
100 2
        $iterationCallback($processes);
101 2
        $this->logger->debug(self::LOG_STOP_ITERATION_CALLBACK, ['processes' => $processes]);
102 2
    }
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    /**
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     * @param Process       $process
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     * @param mixed         $key
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     * @param callable|null $finishCallback
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     */
109 6 View Code Duplication
    private function finishCallback(Process $process, $key, callable $finishCallback = null)
0 ignored issues
show
Duplication introduced by Dominik Zogg
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
110
    {
111 6
        if (null === $finishCallback) {
112 4
            return;
113
        }
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115 2
        $this->logger->debug(self::LOG_START_FINISH_CALLBACK, ['process' => $process, 'key' => $key]);
116 2
        $finishCallback($process, $key);
117 2
        $this->logger->debug(self::LOG_STOP_FINISH_CALLBACK, ['process' => $process, 'key' => $key]);
118 2
    }
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}
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