/**
* 静态方法, 单例统一访问入口
* @return object 返回对象的唯一实例
*/
public static function getInstance()
{
if (is_null(self::$_instance) || !isset(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
*根据文件的Hash值报告索引成功
* @param string $signature 文件hash值
* @param string $nodeId 迷你搜索ID
* @return array
*/
public function report($signature, $nodeId)
{
//编制索引成功
$buildSuccess = PluginMiniSearchFile::getInstance()->buildSuccess($signature, $nodeId);
if ($buildSuccess) {
//为迷你搜索节点服务器增加索引数
PluginMiniSearchNode::getInstance()->newBuildFile($nodeId);
//删除索引任务
PluginMiniSearchBuildTask::getInstance()->delete($signature, $nodeId);
}
return array("success" => true);
}
/**
*根据文件的Hash值下载内容
*@param string $signature 文件hash值
*@return array
*
*/
function pullText($signature)
{
$version = PluginMiniDocVersion::getInstance()->getBySignature($signature);
if (isset($version)) {
$mimeTypeList = array("text/plain", "text/html", "application/javascript", "text/css", "application/xml");
foreach ($mimeTypeList as $mimeType) {
if ($mimeType === $version["mime_type"]) {
PluginMiniSearchFile::getInstance()->create($signature);
return;
}
}
$mimeTypeList = array("application/mspowerpoint", "application/msword", "application/msexcel", "application/pdf");
foreach ($mimeTypeList as $mimeType) {
if ($mimeType === $version["mime_type"]) {
//文档类增量转换
//doc/ppt/xls/pdf全文检索需要通过迷你文档拉取文本内容
PluginMiniSearchFile::getInstance()->create($signature);
}
}
}
}
/**
*
* 场景1：针对1.5升级到1.7的场景
* 把系统中的文本文件，提交到文件索引节点，每次做多提交80个转换任务
* 使用方式：手动执行
*/
public function actionBuildOldFile()
{
$versions = PluginMiniSearchVersion::getInstance()->getTxtBuildList();
if (empty($versions)) {
echo "没有需要索引的文本文档了";
} else {
foreach ($versions as $version) {
$signature = $version["file_signature"];
PluginMiniSearchFile::getInstance()->create($signature);
}
echo "本次索引的文本文件有:" . count($versions) . "个\n";
}
$versions = PluginMiniSearchVersion::getInstance()->getDocBuildList();
if (empty($versions)) {
echo "没有需要索引的文档了";
} else {
foreach ($versions as $version) {
$signature = $version["file_signature"];
PluginMiniSearchFile::getInstance()->create($signature);
}
echo "本次索引的文档有:" . count($versions) . "个\n";
}
}