/// <summary>
/// 单例模式创建ZookeeperConfigCenterManager
/// </summary>
/// <param name="_configurationFile">配置文件相对路径</param>
/// <returns></returns>
private static ZookeeperConfigCenterManager _getInstance(string _configurationFile = null)
{
zookeeperConfigCenterManagerEvents = new ZookeeperConfigCenterManagerEvents();
if (string.IsNullOrEmpty(_configurationFile))
{
SettingsPath = GetFileInfo("config/zsettings.config").FullName;
}
else
{
SettingsPath = GetFileInfo(_configurationFile).FullName;
}
if (!File.Exists(SettingsPath))
{
throw new FileNotFoundException("未找到配置文件：" + SettingsPath);
}
if (zookeeperConfigCenter == null)
{
lock (Locker)
{
if (zookeeperConfigCenter == null)
{
zookeeperConfigCenter = new ZookeeperConfigCenterManager();
}
}
}
zookeeperConfigCenterManagerEvents.ZookpeerWriteLog("单例模式创建对象完成，" + SettingsPath, LogerType.Info);
return(zookeeperConfigCenter);
}
/// <summary>
/// 正则匹配并替换
/// </summary>
/// <param name="zookeeprtServer">zookeeprtServe配置信息</param>
/// <param name="node">zookeeprt节点根目录</param>
/// <param name="group">zookeeprt节点子目录</param>
/// <param name="field">zookeeprt节点Key</param>
private void MatchReplace(ZookeeprtServer zookeeprtServer, Node node, ZooKeeper.Model.Group group, Field field)
{
try
{
string dirKey = field.Tpl + "*" + field.Path;//生成字典Key
string tplContent = "";
if (string.IsNullOrEmpty(tplContent) && !contents.ContainsKey(dirKey))
{
tplContent = LoadFileContent(field.Tpl); //加载模版文件内容
contents.Add(dirKey, tplContent); //添加内容到字典
}
tplContent = contents[dirKey];
var sw = new Stopwatch();//监测Zookeeper查询Path节点耗时
sw.Start();
string value = GetZookeeperField(zookeeprtServer, node, group, field);
sw.Stop();
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog(string.Format("Zookeeper查询完毕，查询用时：{0}毫秒", (sw.ElapsedMilliseconds)), LogerType.Info);
contents[dirKey] = Regex.Replace(tplContent, @"\${" + field.Name.Trim() + @"\}", value);//替换配置文件内容
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("正则匹配并替换异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
}
}
/// <summary>
/// 私有,序列化对象，并保存到文件
/// </summary>
/// <typeparam name="T">序列化的泛型类型</typeparam>
/// <param name="obj">序列化的泛型对象</param>
/// <param name="savePath">序列化后保存的文件位置</param>
private void SerializerXml <T>(T obj, string savePath)
{
try
{
var serializer = new XmlSerializer(typeof(T));
var memoryStream = new MemoryStream();
var streamWriter = new StreamWriter(memoryStream, System.Text.Encoding.UTF8);
XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
namespaces.Add(string.Empty, string.Empty);
serializer.Serialize(streamWriter, obj, namespaces);
memoryStream.Seek(0, SeekOrigin.Begin);
var streamReader = new StreamReader(memoryStream, System.Text.Encoding.UTF8);
var utf8EncodedXml = streamReader.ReadToEnd();
memoryStream.Close();
streamWriter.Close();
streamReader.Close();
File.WriteAllText(savePath, utf8EncodedXml.ToString());
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("序列化对象异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
}
}
/// <summary>
/// 私有,替换模版
/// </summary>
private void ReplaceTemplate()
{
try
{
var conf = ConfigurationInfo;
Node node = conf.Node;
foreach (ZooKeeper.Model.Group group in node.Groups)
{
foreach (Field field in group.Fields)
{
if (File.Exists(GetFileInfo(field.Tpl).FullName))
{
MatchReplace(conf.ZookeeprtServer, node, group, field);
}
}
}
//先备份当前版本，再执行替换
Backup();
foreach (string item in contents.Keys)
{
string[] files = item.Split(new char[] { '*' }, StringSplitOptions.RemoveEmptyEntries);
File.WriteAllText(GetFileInfo(files[1]).FullName, contents[item]);//根据Zookeeper，生成新的配置文件到指定目录
}
contents.Clear();
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("替换模版异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
}
}
/// <summary>
/// 同步版本号与服务器保持一致
/// </summary>
/// <param name="ver">服务器版本号</param>
private void RsyncVersion(double ver)
{
try
{
var conf = ConfigurationInfo;
conf.Version.LocVer = ver;
SerializerXml(conf, SettingsPath);
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("更新本地版本号与redis保持一致异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
}
}
/// <summary>
/// 私有,反序列化对象
/// </summary>
/// <typeparam name="T">反序列化的泛型类型</typeparam>
/// <param name="fileStream">反序列化的字节流</param>
/// <returns></returns>
private T DeserializeXml <T>(FileStream fileStream)
{
try
{
XmlSerializer xmlSearializer = new XmlSerializer(typeof(T));
T info = (T)xmlSearializer.Deserialize(fileStream);
fileStream.Close();
return(info);
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("反序列化对象异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
return(default(T));
}
}
/// <summary>
/// 私有,初始化Zookeeper，根据path和版本查询value
/// </summary>
/// <param name="zookeeprtServe">zookeeprtServe配置信息</param>
/// <param name="node">zookeeprt节点根目录</param>
/// <param name="groupr">zookeeprt节点子目录</param>
/// <param name="field">zookeeprt节点Key</param>
/// <returns></returns>
private string GetZookeeperField(ZookeeprtServer zookeeprtServe, Node node, ZooKeeper.Model.Group group, Field field)
{
//请求Zookpeer前事件
zookeeperConfigCenterManagerEvents.RequestZookpeerBefor(zookeeprtServe, node, group, field);
string path = node.BaseUrl + group.Name + "/" + field.Name;//组合Zookpeer路径
try
{
string result = "";
result = configer.GetStringData(path);//Zookpeer中根据path查询value
//请求Zookpeer后事件
zookeeperConfigCenterManagerEvents.RequestZookpeerAfter(result);
return(result);
}
catch (Exception e)
{
zookeeperConfigCenterManagerEvents.RequestZookpeerError(e);
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("读取Zookeeper异常:\r\n" + e.Message + e.StackTrace + "\n" + path, LogerType.Error);
return("");
}
}
/// <summary>
/// 验证配置
/// </summary>
/// <param name="zConfiguration"></param>
private void VerifySettings(ZConfiguration zConfiguration)
{
try
{
if (zConfiguration == null)
{
throw new Exception("读取配置文件出错");
}
if (zConfiguration.Node.Groups.Count <= 0)
{
throw new Exception("配置文件中, node节点至少包含一个Group节点");
}
/*var Repeat = (from o in zConfiguration.Node.Groups group o by o.Name into g where g.Count() > 1 select g).ToList();
* if (Repeat.Count > 0)
* throw new Exception(string.Format("配置文件中,Group节点不能包含多个重复的Name属性值:{0}", Repeat[0].Key));*/
var NoFieldsList = zConfiguration.Node.Groups.Where(o => { return(o.Fields.Count <= 0); }).ToList();
if (NoFieldsList.Count > 0)
{
throw new Exception(string.Format("配置文件中, name={0}的Group节点必须至少包含一个field节点", NoFieldsList[0].Name));
}
if (zConfiguration.ZookeeprtServer.ConnectUrls.Count <= 0)
{
throw new Exception("配置文件中, zookeeperServer节点必须至少包含一个url节点");
}
var modeMatchCount = zConfiguration.ZookeeprtServer.ConnectUrls.Count(o => { return(o.Mode.Trim().ToLower() == ConfigurationInfo.Mode.Trim().ToLower()); });
if (modeMatchCount <= 0)
{
throw new Exception("配置文件中, configuration节点属性mode:" + zConfiguration.Mode + ",不包含在zookeeperServer节点的url节点mode中");
}
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog(e.Message, LogerType.Error);
throw new Exception(e.Message);
}
}
/// <summary>
/// 私有,加载文件内容
/// </summary>
/// <param name="filePath">文件路径</param>
/// <returns></returns>
private string LoadFileContent(string filePath)
{
try
{
filePath = GetFileInfo(filePath).FullName;
if (!File.Exists(filePath))
{
return("");
}
using (FileStream fs = new FileStream(filePath, FileMode.Open))
{
using (StreamReader sr = new StreamReader(fs))
{
string content = sr.ReadToEnd();
return(content);
}
}
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("加载文件内容异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
return("");
}
}
/// <summary>
/// 私有,备份当前版本
/// </summary>
private void Backup()
{
try
{
List <string> BackupList = new List <string>();
var conf = ConfigurationInfo;
Node node = conf.Node;
foreach (ZooKeeper.Model.Group group in node.Groups)
{
foreach (Field field in group.Fields)
{
if (!BackupList.Contains(field.Path) && File.Exists(GetFileInfo(field.Path).FullName))
{
BackupList.Add(field.Path);//添加至备份列表
}
}
}
//开始备份
foreach (var item in BackupList)
{
FileInfo finfo = GetFileInfo(item);
var newFile = finfo.Name.Replace(finfo.Extension, conf.Version.LocVer + finfo.Extension);
var bakPath = finfo.Directory + @"\bak\";
if (!Directory.Exists(bakPath))
{
Directory.CreateDirectory(bakPath);
}
File.Copy(finfo.FullName, bakPath + newFile, true);
}
}
catch (Exception e)
{
ZookeeperConfigCenterManagerEvents.ZookpeerWriteLog("备份当前版本异常:\r\n" + e.Message + e.StackTrace, LogerType.Error);
}
}