public IEnumerator GetEnumerator()
{
// 首先按照服务器名的不同，划分为若干个区段
List <OneBatch> batchs = new List <OneBatch>();
{
OneBatch batch = new OneBatch();
for (int index = 0; index < m_recpaths.Count; index++)
{
string s = m_recpaths[index];
// 解析记录路径
string strServerName = "";
string strPurePath = "";
dp2SearchForm.ParseRecPath(s,
out strServerName,
out strPurePath);
// 服务器名发生变化了
if (batch.Count > 0 && strServerName != batch.ServerName)
{
batchs.Add(batch);
batch = new OneBatch();
batch.ServerName = strServerName;
batch.Add(strPurePath);
continue;
}
if (string.IsNullOrEmpty(batch.ServerName) == true)
{
batch.ServerName = strServerName;
}
batch.Add(strPurePath);
}
if (batch.Count > 0)
{
batchs.Add(batch);
}
}
// 进行循环获取
foreach (OneBatch temp in batchs)
{
// 获得server url
dp2Server server = this.Servers.GetServerByName(temp.ServerName);
if (server == null)
{
string strError = "名为 '" + temp.ServerName + "' 的服务器在检索窗中尚未定义...";
throw new Exception(strError);
}
string strServerUrl = server.Url;
LibraryChannel channel = this.ChannelManager.GetChannel(strServerUrl);
try
{
List <string> batch = new List <string>();
for (; batch.Count > 0 || temp.Count > 0;)
{
if (batch.Count == 0)
{
for (int i = 0; i < Math.Min(temp.Count, 100); i++)
{
batch.Add(temp[i]);
}
temp.RemoveRange(0, batch.Count);
}
// 每100个一批
if (batch.Count > 0)
{
REDO:
string[] paths = new string[batch.Count];
batch.CopyTo(paths);
DigitalPlatform.LibraryClient.localhost.Record[] searchresults = null;
string strError = "";
long lRet = channel.GetBrowseRecords(
this.Stop,
paths,
"id,cols",
out searchresults,
out strError);
if (lRet == -1)
{
throw new Exception(strError);
}
if (searchresults == null)
{
strError = "searchresults == null";
throw new Exception(strError);
}
for (int i = 0; i < searchresults.Length; i++)
{
DigitalPlatform.LibraryClient.localhost.Record record = searchresults[i];
Debug.Assert(batch[i] == record.Path, "");
// 包含服务器名
record.Path = record.Path + "@" + temp.ServerName;
yield return(record);
}
CONTINUE:
if (batch.Count > searchresults.Length)
{
// 有本次没有获取到的记录
batch.RemoveRange(0, searchresults.Length);
/*
* if (index == m_recpaths.Count - 1)
* goto REDO; // 当前已经是最后一轮了，需要继续做完
* */
// 否则可以留给下一轮处理
}
else
{
batch.Clear();
}
}
}
//
}
finally
{
Program.MainForm.ReturnChannel(channel);
}
}
}
public IEnumerator GetEnumerator()
{
List <string> format_list = new List <string>();
int nContentIndex = format_list.Count;
int nTimestampIndex = -1;
int nMetadataIndex = -1;
format_list.Add(this.Format);
if ((this.GetBiblioInfoStyle & dp2Catalog.GetBiblioInfoStyle.Timestamp) != 0)
{
nTimestampIndex = format_list.Count;
format_list.Add("timestamp");
}
if ((this.GetBiblioInfoStyle & dp2Catalog.GetBiblioInfoStyle.Metadata) != 0)
{
nMetadataIndex = format_list.Count;
format_list.Add("metadata");
}
string[] formats = new string[format_list.Count];
format_list.CopyTo(formats);
// 首先按照服务器名的不同，划分为若干个区段
List <OneBatch> batchs = new List <OneBatch>();
{
OneBatch batch = new OneBatch();
for (int index = 0; index < m_recpaths.Count; index++)
{
string s = m_recpaths[index];
// 解析记录路径
string strServerName = "";
string strPurePath = "";
dp2SearchForm.ParseRecPath(s,
out strServerName,
out strPurePath);
// 服务器名发生变化了
if (batch.Count > 0 && strServerName != batch.ServerName)
{
batchs.Add(batch);
batch = new OneBatch();
batch.ServerName = strServerName;
batch.Add(strPurePath);
continue;
}
if (string.IsNullOrEmpty(batch.ServerName) == true)
{
batch.ServerName = strServerName;
}
batch.Add(strPurePath);
}
if (batch.Count > 0)
{
batchs.Add(batch);
}
}
// 进行循环获取
foreach (OneBatch temp in batchs)
{
// 获得server url
dp2Server server = this.Servers.GetServerByName(temp.ServerName);
if (server == null)
{
string strError = "名为 '" + temp.ServerName + "' 的服务器在检索窗中尚未定义...";
throw new Exception(strError);
}
string strServerUrl = server.Url;
LibraryChannel channel = this.ChannelManager.GetChannel(strServerUrl);
try
{
List <string> batch = new List <string>();
for (; batch.Count > 0 || temp.Count > 0;)
{
if (batch.Count == 0)
{
for (int i = 0; i < Math.Min(temp.Count, 100); i++)
{
batch.Add(temp[i]);
}
temp.RemoveRange(0, batch.Count);
}
// 每100个一批
if (batch.Count > 0)
{
REDO:
string strCommand = "@path-list:" + StringUtil.MakePathList(batch);
string[] results = null;
byte[] timestamp = null;
string strError = "";
long lRet = channel.GetBiblioInfos(
this.Stop,
strCommand,
"",
formats,
out results,
out timestamp,
out strError);
if (lRet == -1)
{
throw new Exception(strError);
}
if (lRet == 0)
{
if (lRet == 0 && String.IsNullOrEmpty(strError) == true)
{
foreach (string path in batch)
{
BiblioItem item = new BiblioItem();
item.RecPath = path + "@" + temp.ServerName;
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + path + "' 不存在";
yield return(item);
}
goto CONTINUE;
}
// 如果results.Length表现正常，其实还可以继续处理
if (results != null && results.Length > 0)
{
}
else
{
strError = "获得书目记录 '" + StringUtil.MakePathList(batch) + "' 时发生错误: " + strError;
throw new Exception(strError);
}
}
if (results == null)
{
strError = "results == null";
throw new Exception(strError);
}
for (int i = 0; i < results.Length / formats.Length; i++)
{
BiblioItem item = new BiblioItem();
item.RecPath = batch[i] + "@" + temp.ServerName;
if (nContentIndex != -1)
{
item.Content = results[i * formats.Length + nContentIndex];
}
if (nTimestampIndex != -1)
{
item.Timestamp = ByteArray.GetTimeStampByteArray(results[i * formats.Length + nTimestampIndex]);
}
if (nMetadataIndex != -1)
{
item.Metadata = results[i * formats.Length + nMetadataIndex];
}
if (string.IsNullOrEmpty(item.Content) == true)
{
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + item.RecPath + "' 不存在";
}
yield return(item);
}
CONTINUE:
if (batch.Count > results.Length / formats.Length)
{
// 有本次没有获取到的记录
batch.RemoveRange(0, results.Length / formats.Length);
/*
* if (index == m_recpaths.Count - 1)
* goto REDO; // 当前已经是最后一轮了，需要继续做完
* */
// 否则可以留给下一轮处理
}
else
{
batch.Clear();
}
}
}
//
}
finally
{
Program.MainForm.ReturnChannel(channel);
}
}
}