Messenger::__construct() - Code Metrics - WyriHaximus/reactphp-child-process-messenger - Measure and Improve Code Quality continuously with Scrutinizer

Messenger::__construct() A
last analyzed 2022-06-09 20:24 UTC

↳ Parent: Messenger

Complexity

Conditions	3
Paths	1

Size

Total Lines	28
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	3.1707

Importance

Changes

Metric	Value
eloc	15
c	0
b	0
f	0
dl	0
loc	28
rs	9.7666
ccs	11
cts	15
cp	0.7332
cc	3
nc	1
nop	2
crap	3.1707

<?php

declare(strict_types=1);

namespace WyriHaximus\React\ChildProcess\Messenger;

use Evenement\EventEmitterInterface;
use Evenement\EventEmitterTrait;
use React\Promise\PromiseInterface;
use React\Socket\ConnectionInterface;
use Throwable;
use WyriHaximus\React\ChildProcess\Messenger\ChildProcess\Options;
use WyriHaximus\React\ChildProcess\Messenger\Messages\ActionableMessageInterface;
use WyriHaximus\React\ChildProcess\Messenger\Messages\Error;
use WyriHaximus\React\ChildProcess\Messenger\Messages\Factory as MessagesFactory;
use WyriHaximus\React\ChildProcess\Messenger\Messages\Line;
use WyriHaximus\React\ChildProcess\Messenger\Messages\LineInterface;
use WyriHaximus\React\ChildProcess\Messenger\Messages\Message;
use WyriHaximus\React\ChildProcess\Messenger\Messages\Payload;
use WyriHaximus\React\ChildProcess\Messenger\Messages\Rpc;

use function array_key_exists;
use function array_pop;
use function count;
use function explode;
use function React\Promise\reject;
use function strpos;

final class Messenger implements MessengerInterface, EventEmitterInterface
{
    use EventEmitterTrait;

    public const INTERVAL      = 0.1;
    public const TERMINATE_RPC = 'wyrihaximus.react.child-process.messenger.terminate';

    protected ConnectionInterface $connection;

    protected OutstandingCalls $outstandingRpcCalls;

    /** @var array<mixed> */
    protected array $rpcs = [];

    /** @var array<mixed> */
    protected array $options = [];

    protected string $buffer = '';

    /** @var array<string, class-string|array<mixed>> */

    protected array $defaultOptions = [
        'lineClass' => Line::class,
        'messageFactoryClass' => MessagesFactory::class,
        'lineOptions' => [],
    ];

    public function __construct(
        ConnectionInterface $connection,
        Options $options
    ) {
        $this->connection = $connection;

        /**
         * @psalm-suppress InvalidMethodCall
         */
        $this->options = $this->defaultOptions + $options->toArray();

        $this->outstandingRpcCalls = new OutstandingCalls();

        $this->connection->on('data', function (string $data): void {
            $this->buffer .= $data;
            $this->emit('data', [$data]);
            $this->handleData();
        });
        $this->connection->on('close', function (): void {
            $calls = $this->outstandingRpcCalls->getCalls();
            if (count($calls) === 0) {
                return;
            }

            $error = new CommunicationWithProcessUnexpectedEndException();
            $this->emit('error', [$error, $this]);
            foreach ($calls as $call) {
                $call->reject($error);
            }
        });
    }

    public function registerRpc(string $target, callable $listener): void
    {
        $this->rpcs[$target] = $listener;
    }

    public function deregisterRpc(string $target): void
    {
        unset($this->rpcs[$target]);
    }

    public function hasRpc(string $target): bool
    {
        return array_key_exists($target, $this->rpcs);
    }

    public function callRpc(string $target, Payload $payload): PromiseInterface
    {
        try {
            return $this->rpcs[$target]($payload, $this);

            /** @phpstan-ignore-next-line  */
        } catch (Throwable $exception) {
            return reject($exception);
        }
    }

    public function message(Message $message): void
    {
        $this->write($this->createLine($message));
    }

    public function error(Error $error): void
    {
        $this->write($this->createLine($error));
    }

    public function getOutstandingCall(string $uniqid): OutstandingCallInterface
    {
        return $this->outstandingRpcCalls->getCall($uniqid);
    }

    public function rpc(Rpc $rpc): PromiseInterface
    {
        $callReference = $this->outstandingRpcCalls->newCall(function (): void {}); // phpcs:disabled

        $this->write($this->createLine($rpc->setUniqid($callReference->getUniqid())));

        return $callReference->getDeferred()->promise();
    }

    public function createLine(ActionableMessageInterface $line): string
    {
        $lineCLass = $this->options['lineClass'];

        /**
         * @psalm-suppress InvalidCast
         */
        return (string) new $lineCLass($line, $this->options['lineOptions']);
    }

    public function softTerminate(): PromiseInterface
    {
        return $this->rpc(MessagesFactory::rpc(self::TERMINATE_RPC));
    }

    public function write(string $line): void
    {
        $this->connection->write($line);
    }

    /**
     * @internal
     */
    public function crashed(int $exitCode): void
    {
        $this->emit('error', [new ProcessUnexpectedEndException($exitCode), $this]);
    }

    private function handleData(): void
    {
        if (strpos($this->buffer, LineInterface::EOL) === false) {
            return;
        }

        $messages     = explode(LineInterface::EOL, $this->buffer);
        $this->buffer = array_pop($messages);
        $this->iterateMessages($messages);
    }

    /**
     * @param array<string> $messages
     */
    private function iterateMessages(array $messages): void
    {
        foreach ($messages as $message) {
            try {
                MessagesFactory::fromLine($message, [])->handle($this, 'source');
                /** @phpstan-ignore-next-line  */
            } catch (Throwable $exception) {
                $this->emit('error', [$exception, $this]);
            }
        }
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace WyriHaximus\React\ChildProcess\Messenger;
6
7		use Evenement\EventEmitterInterface;
8		use Evenement\EventEmitterTrait;
9		use React\Promise\PromiseInterface;
10		use React\Socket\ConnectionInterface;
11		use Throwable;
12		use WyriHaximus\React\ChildProcess\Messenger\ChildProcess\Options;
13		use WyriHaximus\React\ChildProcess\Messenger\Messages\ActionableMessageInterface;
14		use WyriHaximus\React\ChildProcess\Messenger\Messages\Error;
15		use WyriHaximus\React\ChildProcess\Messenger\Messages\Factory as MessagesFactory;
16		use WyriHaximus\React\ChildProcess\Messenger\Messages\Line;
17		use WyriHaximus\React\ChildProcess\Messenger\Messages\LineInterface;
18		use WyriHaximus\React\ChildProcess\Messenger\Messages\Message;
19		use WyriHaximus\React\ChildProcess\Messenger\Messages\Payload;
20		use WyriHaximus\React\ChildProcess\Messenger\Messages\Rpc;
21
22		use function array_key_exists;
23		use function array_pop;
24		use function count;
25		use function explode;
26		use function React\Promise\reject;
27		use function strpos;
28
29		final class Messenger implements MessengerInterface, EventEmitterInterface
30		{
31		use EventEmitterTrait;
32
33		public const INTERVAL = 0.1;
34		public const TERMINATE_RPC = 'wyrihaximus.react.child-process.messenger.terminate';
35
36		protected ConnectionInterface $connection;
37
38		protected OutstandingCalls $outstandingRpcCalls;
39
40		/** @var array<mixed> */
41		protected array $rpcs = [];
42
43		/** @var array<mixed> */
44		protected array $options = [];
45
46		protected string $buffer = '';
47
48		/** @var array<string, class-string\|array<mixed>> */
		0 ignored issues – show Documentation Bug introduced 2022-06-05 21:18 UTC by Report Bug Copy Issue Report The doc comment `array<string, class-string\|array<mixed>>` at position `4` could not be parsed: Unknown type name 'class-string' at position 4 in array<string, class-string\|array<mixed>>. Loading history...
49		protected array $defaultOptions = [
50		'lineClass' => Line::class,
51		'messageFactoryClass' => MessagesFactory::class,
52		'lineOptions' => [],
53		];
54
55		public function __construct(
56		ConnectionInterface $connection,
57	7	Options $options
58		) {
59		$this->connection = $connection;
60
61	7	/**
62		* @psalm-suppress InvalidMethodCall
63	7	*/
64		$this->options = $this->defaultOptions + $options->toArray();
65	7
66		$this->outstandingRpcCalls = new OutstandingCalls();
67
68	2	$this->connection->on('data', function (string $data): void {
69	2	$this->buffer .= $data;
70	2	$this->emit('data', [$data]);
71	7	$this->handleData();
72		});
73	1	$this->connection->on('close', function (): void {
74	1	$calls = $this->outstandingRpcCalls->getCalls();
75	1	if (count($calls) === 0) {
76		return;
77		}
78
79		$error = new CommunicationWithProcessUnexpectedEndException();
80		$this->emit('error', [$error, $this]);
81		foreach ($calls as $call) {
82		$call->reject($error);
83	7	}
84	7	});
85		}
86
87		public function registerRpc(string $target, callable $listener): void
88		{
89		$this->rpcs[$target] = $listener;
90	1	}
91
92	1	public function deregisterRpc(string $target): void
93	1	{
94		unset($this->rpcs[$target]);
95		}
96
97		public function hasRpc(string $target): bool
98	1	{
99		return array_key_exists($target, $this->rpcs);
100	1	}
101	1
102		public function callRpc(string $target, Payload $payload): PromiseInterface
103		{
104		try {
105		return $this->rpcs[$target]($payload, $this);
106
107	1	/** @phpstan-ignore-next-line */
108		} catch (Throwable $exception) {
109	1	return reject($exception);
110		}
111		}
112
113		public function message(Message $message): void
114		{
115		$this->write($this->createLine($message));
116		}
117	1
118		public function error(Error $error): void
119		{
120	1	$this->write($this->createLine($error));
121	1	}
122
123		public function getOutstandingCall(string $uniqid): OutstandingCallInterface
124		{
125	1	return $this->outstandingRpcCalls->getCall($uniqid);
126	1	}
127	1
128		public function rpc(Rpc $rpc): PromiseInterface
129		{
130		$callReference = $this->outstandingRpcCalls->newCall(function (): void {}); // phpcs:disabled
131
132		$this->write($this->createLine($rpc->setUniqid($callReference->getUniqid())));
133
134		return $callReference->getDeferred()->promise();
135		}
136	1
137		public function createLine(ActionableMessageInterface $line): string
138	1	{
139	1	$lineCLass = $this->options['lineClass'];
140
141		/**
142		* @psalm-suppress InvalidCast
143		*/
144	1	return (string) new $lineCLass($line, $this->options['lineOptions']);
145		}
146	1
147	1	public function softTerminate(): PromiseInterface
148		{
149		return $this->rpc(MessagesFactory::rpc(self::TERMINATE_RPC));
150		}
151
152		public function write(string $line): void
153	1	{
154		$this->connection->write($line);
155	1	}
156
157		/**
158		* @internal
159		*/
160		public function crashed(int $exitCode): void
161		{
162		$this->emit('error', [new ProcessUnexpectedEndException($exitCode), $this]);
163		}
164	2
165	2	private function handleData(): void
166		{
167	2	if (strpos($this->buffer, LineInterface::EOL) === false) {
168		return;
169	2	}
170
171		$messages = explode(LineInterface::EOL, $this->buffer);
172		$this->buffer = array_pop($messages);
173		$this->iterateMessages($messages);
174		}
175
176	4	/**
177		* @param array<string> $messages
178	4	*/
179		private function iterateMessages(array $messages): void
180	4	{
181		foreach ($messages as $message) {
182		try {
183		MessagesFactory::fromLine($message, [])->handle($this, 'source');
184		/** @phpstan-ignore-next-line */
185		} catch (Throwable $exception) {
186	1	$this->emit('error', [$exception, $this]);
187		}
188	1	}
189		}
190		}
191

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Messenger::__construct() A last analyzed 2022-06-09 20:24 UTC

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Messenger::__construct() A
last analyzed 2022-06-09 20:24 UTC