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File / Folder	Size	Action
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Factories	--	ren
Migrations	--	ren
Seeds	--	ren
DatabaseInspectionComma...	7.722KB	edt ren
DbCommand.php	6.521KB	edt ren
DumpCommand.php	2.738KB	edt ren
MonitorCommand.php	3.908KB	edt ren
PruneCommand.php	5.801KB	edt ren
ShowCommand.php	6.846KB	edt ren
ShowModelCommand.php	16.826KB	edt ren
TableCommand.php	7.901KB	edt ren
WipeCommand.php	2.706KB	edt ren

<?php

namespace Illuminate\Database\Console;

use Illuminate\Contracts\Events\Dispatcher;
use Illuminate\Database\ConnectionResolverInterface;
use Illuminate\Database\Events\DatabaseBusy;
use Illuminate\Support\Composer;
use Symfony\Component\Console\Attribute\AsCommand;

#[AsCommand(name: 'db:monitor')]
class MonitorCommand extends DatabaseInspectionCommand
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'db:monitor
                {--databases= : The database connections to monitor}
                {--max= : The maximum number of connections that can be open before an event is dispatched}';

/**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Monitor the number of connections on the specified database';

/**
     * The connection resolver instance.
     *
     * @var \Illuminate\Database\ConnectionResolverInterface
     */
    protected $connection;

/**
     * The events dispatcher instance.
     *
     * @var \Illuminate\Contracts\Events\Dispatcher
     */
    protected $events;

/**
     * Create a new command instance.
     *
     * @param  \Illuminate\Database\ConnectionResolverInterface  $connection
     * @param  \Illuminate\Contracts\Events\Dispatcher  $events
     * @param  \Illuminate\Support\Composer  $composer
     */
    public function __construct(ConnectionResolverInterface $connection, Dispatcher $events, Composer $composer)
    {
        parent::__construct($composer);

$this->connection = $connection;
        $this->events = $events;
    }

/**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        $databases = $this->parseDatabases($this->option('databases'));

$this->displayConnections($databases);

if ($this->option('max')) {
            $this->dispatchEvents($databases);
        }
    }

/**
     * Parse the database into an array of the connections.
     *
     * @param  string  $databases
     * @return \Illuminate\Support\Collection
     */
    protected function parseDatabases($databases)
    {
        return collect(explode(',', $databases))->map(function ($database) {
            if (! $database) {
                $database = $this->laravel['config']['database.default'];
            }

$maxConnections = $this->option('max');

return [
                'database' => $database,
                'connections' => $connections = $this->getConnectionCount($this->connection->connection($database)),
                'status' => $maxConnections && $connections >= $maxConnections ? '<fg=yellow;options=bold>ALERT</>' : '<fg=green;options=bold>OK</>',
            ];
        });
    }

/**
     * Display the databases and their connection counts in the console.
     *
     * @param  \Illuminate\Support\Collection  $databases
     * @return void
     */
    protected function displayConnections($databases)
    {
        $this->newLine();

$this->components->twoColumnDetail('<fg=gray>Database name</>', '<fg=gray>Connections</>');

$databases->each(function ($database) {
            $status = '['.$database['connections'].'] '.$database['status'];

$this->components->twoColumnDetail($database['database'], $status);
        });

$this->newLine();
    }

/**
     * Dispatch the database monitoring events.
     *
     * @param  \Illuminate\Support\Collection  $databases
     * @return void
     */
    protected function dispatchEvents($databases)
    {
        $databases->each(function ($database) {
            if ($database['status'] === '<fg=green;options=bold>OK</>') {
                return;
            }

$this->events->dispatch(
                new DatabaseBusy(
                    $database['database'],
                    $database['connections']
                )
            );
        });
    }
}

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