// 获得一条记录的 XML 字符串
// return:
// -1 出错
// -4 未找到记录
// -10 记录局部未找到
// 0 成功
long GetXmlBody(
Database db,
string strID,
bool bXml,
bool bTimestamp,
bool bMetadata,
bool bWithResMetadata,
out string strXml,
out string strMetadata,
out byte[] baTimestamp,
out string strError)
{
strError = "";
strXml = "";
strMetadata = "";
baTimestamp = null;
string strGetStyle = ""; //"data,timestamp"; // ,outputpath, metadata
if (bTimestamp == true)
StringUtil.SetInList(ref strGetStyle, "timestamp", true);
if (bXml == true)
StringUtil.SetInList(ref strGetStyle, "data", true);
if (bMetadata == true)
StringUtil.SetInList(ref strGetStyle, "metadata", true);
if (bWithResMetadata == true)
StringUtil.SetInList(ref strGetStyle, "withresmetadata", true);
int nStart0 = 0;
int nLength0 = -1;
int nMaxLength = 300 * 1024; // 每次最多获取300K
int nTotalLength = 0;
string strOutputID = "";
byte[] baTotal = null;
int nAdditionError = 0;
for (; ; )
{
byte[] baData = null;
long lRet = db.GetXml(strID,
"", // strXPath,
nStart0,
nLength0,
nMaxLength,
strGetStyle,
out baData,
out strMetadata,
out strOutputID,
out baTimestamp,
true,
out nAdditionError,
out strError);
if (lRet <= -1)
return lRet;
nTotalLength = (int)lRet;
// 如果数据体太大
if (nTotalLength > QUOTA_SIZE)
{
strError = "数据尺寸超过 " + QUOTA_SIZE.ToString();
return -1;
}
// 2012/11/28
// 如果不想获得数据, baData就是null
if (baData == null)
break;
baTotal = ByteArray.Add(baTotal, baData);
nStart0 += baData.Length;
if (nStart0 >= nTotalLength)
break;
}
// 记录体
// 转换成字符串
if (bXml == true && baTotal != null)
{
strXml = ByteArray.ToString(baTotal);
}
return 0;
}
// 检查其它的库所有语言版本中是否存在相同的逻辑名
internal bool IsExistLogicName(string strLogicName,
Database exceptDb)
{
for (int i = 0; i < this.Count; i++)
{
Database db = (Database)this[i];
if (exceptDb != null)
{
if (db == exceptDb)
continue;
}
string strDbAllLogicName = db.GetAllCaption();
if (StringUtil.IsInList(strLogicName, strDbAllLogicName, true) == true)
return true;
}
return false;
}
// 检索数据库对应的配置目录是否重复
// parameters:
// strCfgsDir 目录名，相对目录
// exceptDb 不参考比较的数据库对象
// return:
// true 有重复
// false 无重复
internal bool IsExistCfgsDir(string strCfgsDir,
Database exceptDb)
{
for (int i = 0; i < this.Count; i++)
{
Database db = (Database)this[i];
if (exceptDb != null)
{
if (db == exceptDb)
continue;
}
string strDbCfgsDir = DatabaseUtil.GetLocalDir(this.NodeDbs,
db.m_selfNode);
if (String.Compare(strCfgsDir, strDbCfgsDir, true) == 0)
return true;
}
return false;
}
/*
public int UseCount
{
get
{
return this.m_nUseCount;
}
}
*/
// 初始化用户对象
// 线程不安全。因为被调用时尚未进入集合，也没有必要线程安全
// parameters:
// dom 用户记录dom
// strResPath 记录路径 全路径 库名/记录号
// db 所从属的数据库
// strError out参数，返回出错信息
// return:
// -1 出错
// 0 成功
internal int Initial(string strRecPath,
XmlDocument dom,
Database db,
DatabaseCollection dbs,
out string strError)
{
strError = "";
int nRet = 0;
this.RecPath = strRecPath;
this.m_dom = dom;
// this.m_db = db;
XmlNode root = this.m_dom.DocumentElement;
XmlNode nodeName = root.SelectSingleNode("name");
if (nodeName != null)
this.Name = DomUtil.GetNodeText(nodeName).Trim();
// 用户所拥有的数据库
this.aOwnerDbName = null;
if (String.IsNullOrEmpty(this.Name) == false)
{
List<string> aOwnerDbName = null;
nRet = dbs.GetOwnerDbNames(this.Name,
out aOwnerDbName,
out strError);
if (nRet == -1)
return -1;
this.aOwnerDbName = aOwnerDbName;
}
XmlNode nodePassword = root.SelectSingleNode("password");
if (nodePassword != null)
SHA1Password = DomUtil.GetNodeText(nodePassword).Trim();
XmlNode nodeRightsItem = root.SelectSingleNode("rightsItem");
if (nodeRightsItem != null)
{
strError = "帐户记录为旧版本，根元素下已经不支持<rightsItem>元素。";
return -1;
}
// 没有<server>元素是否按出错处理
this.m_nodeServer = root.SelectSingleNode("server");
if (this.m_nodeServer == null)
{
strError = "帐户记录未定义<server>元素。";
return -1;
}
this.cfgRights = new CfgRights();
// return:
// -1 出错
// 0 成功
nRet = this.cfgRights.Initial(this.m_nodeServer,
out strError);
if (nRet == -1)
return -1;
return 0;
}