PHP code example of hoa-math-community / stream

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

hoa-math-community / stream example snippets

class BasicFile extends Hoa\Stream\Stream
{
    protected function &_open($streamName, Hoa\Stream\Context $context = null)
    {
        if (null === $context) {
            $out = fopen($streamName, 'rb');
        } else {
            $out = fopen($streamName, 'rb', false, $context->getContext());
        }

        return $out;
    }

    protected function _close()
    {
        return fclose($this->getStream());
    }
}

$file = new BasicFile('/path/to/file');

class BasicFile extends Hoa\Stream\Stream implements Hoa\Stream\IStream\In
{
    // …

    public function read($length)
    {
        return fread($this->getStream(), max(1, $length));
    }

    // …
}

$chunk = $file->read(42);

$contextId = 'my_http_context';
$context   = Hoa\Stream\Context::getInstance($contextId);
$context->setOptions([
    // …
]);

$basicFile = new BasicFile('/path/to/file', $contextId);

Hoa\Event\Event::getEvent('hoa://Event/Stream//path/to/file:close-before')->attach(
    function (Hoa\Event\Bucket $bucket) {
        // do something!
    }
);

$file = new BasicFile('/path/to/file', null, true);
// do something
$file->open();

$basic = new BasicFile(
    'https://hoa-project.net/', // stream name
    null,                       // context ID
    true                        // defere opening
);
$basic->on(
    'connect',
    function (Hoa\Event\Bucket $bucket) {
        echo 'Connected', "\n";
    }
);
$basic->on(
    'redirect',
    function (Hoa\Event\Bucket $bucket) {
        echo 'Redirection to ', $bucket->getData()['message'], "\n";
    }
);
$basic->on(
    'mimetype',
    function (Hoa\Event\Bucket $bucket) {
        echo 'MIME-Type is ', $bucket->getData()['message'], "\n";
    }
);
$basic->on(
    'size',
    function (Hoa\Event\Bucket $bucket) {
        echo 'Size is ', $bucket->getData()['max'], "\n";
    }
);
$basic->on(
    'progress',
    function (Hoa\Event\Bucket $bucket) {
        echo 'Progressed, ', $bucket->getData()['transferred'], ' bytes downloaded', "\n";
    }
);

// Then open.
$basic->open();

Hoa\Stream\Wrapper\Wrapper::register('tmp', Tmp::class);

class ToUpper extends Hoa\Stream\Filter\Basic
{
    public function filter($in, $out, &$consumed, $closing)
    {
        $iBucket = new Hoa\Stream\Bucket($in);
        $oBucket = new Hoa\Stream\Bucket($out);

        while (false === $iBucket->eob()) {
            $consumed += $iBucket->getLength();

            $iBucket->setData(strtoupper($iBucket->getData()));
            $oBucket->append($iBucket);
        }

        unset($iBucket);
        unset($oBucket);

        return parent::PASS_ON;
    }
}

$filterName = 'toupper';
Hoa\Stream\Filter::register($filterName, ToUpper::class);

$file = new Hoa\File\Read(__FILE__);
Hoa\Stream\Filter::append($file, $filterName, Hoa\Stream\Filter::READ);

 php
echo $file->readAll();