File core/datastore/MDatastoreTransfer.php

 1: <?php
 2: 
 3: namespace webfilesframework\core\datastore;
 4: 
 5: 
 6: 
 7: /**
 8:  * Transfers webfiles from one datastore to another.
 9:  *
10:  * @author     Sebastian Monzel < mail@sebastianmonzel.de >
11:  * @since      0.1.7
12:  */
13: class MDatastoreTransfer
14: {
15: 
16:     private $source;
17:     private $target;
18: 
19:     function __construct(MAbstractDatastore $source, MAbstractDatastore $target)
20:     {
21:         if ($source == null) {
22:             throw new MDatastoreException("source datastore cannot be null.");
23:         }
24:         if ($target == null) {
25:             throw new MDatastoreException("target datastore cannot be null.");
26:         }
27: 
28:         $this->source = $source;
29:         $this->target = $target;
30:     }
31: 
32:     function transfer()
33:     {
34: 
35:         if ($this->target->isReadOnly()) {
36:             throw new MDatastoreException("Cannot transfer data to a read-only datastore.");
37:         }
38: 
39:         $webfiles = $this->source->getWebfilesAsStream();
40:         $this->target->storeWebfilesFromStream($webfiles);
41:     }
42: }
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