/**
* Synchronize the data cache for the current folder.
*
* @param string $history_ignore Object uid that should not be
* updated in the History
*
* @return NULL
*/
public function synchronize($history_ignore = null)
{
$this->_cache->load($this->_cache_key, $this->_data_version);
$result = $this->_folder->getStatus();
list($validity, $nextid, $ids) = $result;
$changes = $this->_folderChanged($validity, $nextid, array_keys($this->_cache->uids), $ids);
if ($changes) {
$modified = array();
$recent_uids = array_diff($ids, array_keys($this->_cache->uids));
$formats = $this->_folder->getFormats();
$handler = Horde_Kolab_Format::factory('Xml', $this->_object_type, $this->_data_version);
$count = 0;
foreach ($recent_uids as $id) {
if ($this->_type == 'annotation' && $id != 1) {
continue;
}
try {
$mime = $this->_folder->parseMessage($id, $handler->getMimeType(), false);
$text = $mime[0];
} catch (Horde_Kolab_Storage_Exception $e) {
Horde::log($mime, 'WARN');
$text = false;
}
if ($text) {
$object = $handler->load($text);
if (is_a($object, 'PEAR_Error')) {
$this->_cache->ignore($id);
$object->addUserInfo('STORAGE ID: ' . $id);
Horde::log($object, 'WARN');
continue;
}
} else {
$object = false;
}
if ($object !== false) {
$message =& $mime[2];
$handler_type = $handler->getMimeType();
foreach ($message->getParts() as $part) {
$name = $part->getName();
$type = $part->getType();
$dp = $part->getDispositionParameter('x-kolab-type');
if (!empty($name) && $type != $handler_type || !empty($dp) && in_array($dp, $formats)) {
$object['_attachments'][$name]['type'] = $type;
$object['_attachments'][$name]['key'] = $this->_cache_key . '/' . $object['uid'] . ':' . $name;
//@todo: Check what to do with this call
//$part->transferDecodeContents();
$result = $this->_cache->storeAttachment($object['_attachments'][$name]['key'], $part->getContents());
if (is_a($result, 'PEAR_Error')) {
Horde::log(sprintf('Failed storing attachment of object %s: %s', $id, $result->getMessage()), 'ERR');
$object = false;
break;
}
}
}
}
if ($object !== false) {
$this->_cache->store($id, $object['uid'], $object);
$mod_ts = time();
if (is_array($changes) && in_array($object['uid'], $changes) && $object['uid'] != $history_ignore) {
$this->_updateHistory($object['uid'], $mod_ts, 'modify');
$modified[] = $object['uid'];
} else {
$this->_updateHistory($object['uid'], $mod_ts, 'add');
}
} else {
$this->_cache->ignore($id);
}
// write out cache once in a while so if the browser times out
// we don't have to start from the beginning.
if ($count > 500) {
$count = 0;
$this->_cache->save();
}
$count++;
}
$this->_cache->save();
if (is_array($changes)) {
$deleted = array_diff($changes, $modified);
foreach ($deleted as $deleted_oid) {
if ($deleted_oid != $history_ignore) {
$this->_updateHistory($deleted_oid, time(), 'delete');
}
}
}
}
}
