/**
* Get an existing {@link xPDOTransport} instance.
*/
public static function retrieve(&$xpdo, $source, $target, $state = xPDOTransport::STATE_PACKED)
{
$instance = null;
$signature = basename($source, '.transport.zip');
if (file_exists($source)) {
if (is_writable($target)) {
$manifest = xPDOTransport::unpack($xpdo, $source, $target, $state);
if ($manifest) {
$instance = new xPDOTransport($xpdo, $signature, $target);
if (!$instance) {
$xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not instantiate a valid xPDOTransport object from the package {$source} to {$target}. SIG: {$signature} MANIFEST: " . print_r($manifest, 1));
}
$manifestVersion = xPDOTransport::manifestVersion($manifest);
switch ($manifestVersion) {
case '0.1':
$instance->vehicles = xPDOTransport::_convertManifestVer1_1(xPDOTransport::_convertManifestVer1_0($manifest));
case '0.2':
$instance->vehicles = xPDOTransport::_convertManifestVer1_1(xPDOTransport::_convertManifestVer1_0($manifest[xPDOTransport::MANIFEST_VEHICLES]));
$instance->attributes = $manifest[xPDOTransport::MANIFEST_ATTRIBUTES];
break;
case '1.0':
$instance->vehicles = xPDOTransport::_convertManifestVer1_1($manifest[xPDOTransport::MANIFEST_VEHICLES]);
$instance->attributes = $manifest[xPDOTransport::MANIFEST_ATTRIBUTES];
break;
default:
$instance->vehicles = $manifest[xPDOTransport::MANIFEST_VEHICLES];
$instance->attributes = $manifest[xPDOTransport::MANIFEST_ATTRIBUTES];
break;
}
} else {
$xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not unpack package {$source} to {$target}. SIG: {$signature}");
}
} else {
$xpdo->log(xPDO::LOG_LEVEL_ERROR, "Could not unpack package: {$target} is not writable. SIG: {$signature}");
}
} else {
$xpdo->log(xPDO::LOG_LEVEL_ERROR, "Package {$source} not found. SIG: {$signature}");
}
return $instance;
}
