/**
* 获得最好的的迷你搜索节点
* 先找出build_file_count最大的节点
* 如果build_file_count相同，找出search_count最小的节点
* @return array
*/
public function getBestNode()
{
$nodes = $this->getValidNodeList();
if (count($nodes) > 0) {
$sortNodes = MiniUtil::arraySort($nodes, "build_file_count", SORT_DESC);
$sortNodes = MiniUtil::getFistArray($sortNodes, 1);
$bestNode = $sortNodes[0];
$buildFileCount = $bestNode["build_file_count"];
$searchCount = $bestNode["search_count"];
foreach ($nodes as $node) {
if ($node["build_file_count"] == $buildFileCount) {
if ($node["search_count"] < $searchCount) {
$bestNode = $node;
}
}
}
return $bestNode;
}
return null;
}
/**
* 获得有效文件下载服务器节点
* 找到min(downloaded_file_count) and status=1的记录分配
* @param string $signature 文件内容hash
* @return array
*/
private function getDownloadNode($signature)
{
$version = MiniVersion::getInstance()->getBySignature($signature);
if (!empty($version)) {
$metaKey = "store_id";
$meta = MiniVersionMeta::getInstance()->getMeta($version["id"], $metaKey);
if (!empty($meta)) {
$value = $meta["meta_value"];
$ids = explode(",", $value);
$nodes = $this->getNodeList();
$validNodes = array();
foreach ($nodes as $node) {
//先找到当前文件存储的节点
$isValidNode = false;
foreach ($ids as $validNodeId) {
if ($validNodeId == $node["id"]) {
$isValidNode = true;
}
}
if (!$isValidNode) {
continue;
}
//然后判断节点是否有效，并在有效的节点找到下载次数最小的节点
if ($node["status"] == 1) {
array_push($validNodes, $node);
}
}
//选出downloaded_file_count最小的个节点
$validNodes = MiniUtil::arraySort($validNodes, "downloaded_file_count", SORT_ASC);
$nodes = MiniUtil::getFistArray($validNodes, 1);
if (count($nodes) > 0) {
$node = $nodes[0];
$urlInfo = parse_url($node["host"]);
if ($urlInfo["host"] == "127.0.0.1") {
//说明迷你存储在本机，直接把127.0.0.1替换为迷你存储端口
$defaultHost = MiniHttp::getMiniHost();
$miniHostInfo = parse_url($defaultHost);
$node['host'] = $miniHostInfo["scheme"] . "://" . $miniHostInfo["host"] . ":" . $urlInfo["port"] . $miniHostInfo["path"];
}
return $node;
}
return null;
}
}
return null;
}
/**
* 获得迷你文档转换服务器节点
* @param string $signature
* @return string
*/
public function getConvertNode($signature)
{
//寻找以前迷你文档节点
$version = PluginMiniDocVersion::getInstance()->getBySignature($signature);
if (!empty($version)) {
$meta = MiniVersionMeta::getInstance()->getMeta($version["id"], "doc_id");
if (!empty($meta)) {
$nodeId = $meta["meta_value"];
$node = $this->getNodeById($nodeId);
if ($node["status"] == 1) {
return $node;
}
}
}
//返回随机converted_file_count最小的节点
$nodes = $this->getNodeList();
$validNodes = array();
foreach ($nodes as $itemNode) {
if ($itemNode["status"] == 1) {
array_push($validNodes, $itemNode);
}
}
//选出converted_file_count最小的个节点
$validNodes = MiniUtil::arraySort($validNodes, "converted_file_count", SORT_ASC);
$nodes = MiniUtil::getFistArray($validNodes, 1);
if (count($nodes) > 0) {
return $nodes[0];
}
return null;
}
