public LoaderItem(BiblioInfo info, ListViewItem item)
{
this.BiblioInfo = info;
this.ListViewItem = item;
}
public IEnumerator GetEnumerator()
{
Debug.Assert(m_loader != null, "");
Hashtable dup_table = new Hashtable(); // 确保 recpaths 中不会出现重复的路径
List<string> recpaths = new List<string>(); // 缓存中没有包含的那些记录
foreach (ListViewItem item in this.Items)
{
string strRecPath = item.Text;
Debug.Assert(string.IsNullOrEmpty(strRecPath) == false, "");
#if NO
BiblioInfo info = (BiblioInfo)this.CacheTable[strRecPath];
if (info == null || string.IsNullOrEmpty(info.OldXml) == true)
recpaths.Add(strRecPath);
#endif
if (dup_table.ContainsKey(strRecPath) == true)
continue;
BiblioInfo info = (BiblioInfo)this.CacheTable[strRecPath];
if (info == null || string.IsNullOrEmpty(info.OldXml) == true)
{
recpaths.Add(strRecPath);
dup_table[strRecPath] = true;
}
}
// 注： Hashtable 在这一段时间内不应该被修改。否则会破坏 m_loader 和 items 之间的锁定对应关系
m_loader.RecPaths = recpaths;
var enumerator = m_loader.GetEnumerator();
// 开始循环
foreach (ListViewItem item in this.Items)
{
string strRecPath = item.Text;
Debug.Assert(string.IsNullOrEmpty(strRecPath) == false, "");
BiblioInfo info = (BiblioInfo)this.CacheTable[strRecPath];
if (info == null || string.IsNullOrEmpty(info.OldXml) == true)
{
if (m_loader.Stop != null)
{
m_loader.Stop.SetMessage("正在获取书目记录 " + strRecPath);
}
bool bRet = enumerator.MoveNext();
if (bRet == false)
{
Debug.Assert(false, "还没有到结尾, MoveNext() 不应该返回 false");
// TODO: 这时候也可以采用返回一个带没有找到的错误码的元素
yield break;
}
BiblioItem biblio = (BiblioItem)enumerator.Current;
Debug.Assert(biblio.RecPath == strRecPath, "m_loader 和 items 的元素之间 记录路径存在严格的锁定对应关系");
// 需要放入缓存
if (info == null)
{
info = new BiblioInfo();
info.RecPath = biblio.RecPath;
}
info.OldXml = biblio.Content;
info.Timestamp = biblio.Timestamp;
this.CacheTable[strRecPath] = info;
yield return new LoaderItem(info, item);
}
else
yield return new LoaderItem(info, item);
}
}
int GetXmlHtml(BiblioInfo info,
out string strXml1,
out string strXml2,
out string strMarcHtml,
out string strBiblioHtml,
out string strError)
{
strError = "";
strXml1 = "";
strXml2 = "";
strMarcHtml = "";
strBiblioHtml = "";
int nRet = 0;
strXml1 = info.OldXml;
strXml2 = info.NewXml;
string strMarcSyntax = "";
string strOldMARC = "";
string strOldFragmentXml = "";
if (string.IsNullOrEmpty(strXml1) == false)
{
string strOutMarcSyntax = "";
// 将XML格式转换为MARC格式
// 自动从数据记录中获得MARC语法
nRet = MarcUtil.Xml2Marc(strXml1,
MarcUtil.Xml2MarcStyle.Warning | MarcUtil.Xml2MarcStyle.OutputFragmentXml,
"",
out strOutMarcSyntax,
out strOldMARC,
out strOldFragmentXml,
out strError);
if (nRet == -1)
{
strError = "XML转换到MARC记录时出错: " + strError;
return -1;
}
strMarcSyntax = strOutMarcSyntax;
}
string strNewMARC = "";
string strNewFragmentXml = "";
if (string.IsNullOrEmpty(strXml2) == false)
{
string strOutMarcSyntax = "";
// 将XML格式转换为MARC格式
// 自动从数据记录中获得MARC语法
nRet = MarcUtil.Xml2Marc(strXml2,
MarcUtil.Xml2MarcStyle.Warning | MarcUtil.Xml2MarcStyle.OutputFragmentXml,
"",
out strOutMarcSyntax,
out strNewMARC,
out strNewFragmentXml,
out strError);
if (nRet == -1)
{
strError = "XML转换到MARC记录时出错: " + strError;
return -1;
}
strMarcSyntax = strOutMarcSyntax;
}
string strMARC = "";
if (string.IsNullOrEmpty(strOldMARC) == false
&& string.IsNullOrEmpty(strNewMARC) == false)
{
// 创建展示两个 MARC 记录差异的 HTML 字符串
// return:
// -1 出错
// 0 成功
nRet = MarcDiff.DiffHtml(
strOldMARC,
strOldFragmentXml,
"",
strNewMARC,
strNewFragmentXml,
"",
out strMarcHtml,
out strError);
if (nRet == -1)
return -1;
strMARC = strNewMARC;
}
else if (string.IsNullOrEmpty(strOldMARC) == false
&& string.IsNullOrEmpty(strNewMARC) == true)
{
strMarcHtml = MarcUtil.GetHtmlOfMarc(strOldMARC,
strOldFragmentXml,
"",
false);
strMARC = strOldMARC;
}
else if (string.IsNullOrEmpty(strOldMARC) == true
&& string.IsNullOrEmpty(strNewMARC) == false)
{
strMarcHtml = MarcUtil.GetHtmlOfMarc(strNewMARC,
strNewFragmentXml,
"",
false);
strMARC = strNewMARC;
}
// return:
// -1 出错
// 0 .fltx 文件没有找到
// 1 成功
nRet = this.MainForm.BuildMarcHtmlText(
MarcDetailForm.GetSyntaxOID(strMarcSyntax),
strMARC,
out strBiblioHtml,
out strError);
if (nRet == -1)
strBiblioHtml = strError.Replace("\r\n", "<br/>");
return 0;
}
int GetBiblioInfo(
bool bCheckSearching,
ListViewItem item,
out BiblioInfo info,
out string strError)
{
strError = "";
info = null;
if (this.m_biblioTable == null)
return 0;
string strRecPath = item.Text;
if (string.IsNullOrEmpty(strRecPath) == true)
return 0;
// 存储所获得书目记录 XML
info = (BiblioInfo)this.m_biblioTable[strRecPath];
if (info == null || string.IsNullOrEmpty(info.OldXml) == true)
{
if (bCheckSearching == true && this._linkMarcFile == null)
{
if (this.InSearching == true)
return 0;
}
// 解析记录路径
string strServerName = "";
string strPurePath = "";
ParseRecPath(strRecPath,
out strServerName,
out strPurePath);
// 获得server url
dp2Server server = this.dp2ResTree1.Servers.GetServerByName(strServerName);
if (server == null)
{
strError = "名为 '" + strServerName + "' 的服务器在检索窗中尚未定义...";
return -1;
}
string strServerUrl = server.Url;
this.Channel = this.Channels.GetChannel(strServerUrl);
string[] results = null;
byte[] baTimestamp = null;
// 获得书目记录
long lRet = Channel.GetBiblioInfos(
stop,
strPurePath,
"",
new string[] { "xml" }, // formats
out results,
out baTimestamp,
out strError);
if (lRet == 0)
return -1; // 是否设定为特殊状态?
if (lRet == -1)
return -1;
if (results == null || results.Length == 0)
{
strError = "results error";
return -1;
}
string strXml = results[0];
// 滞后创建新对象，避免在 hashtable 中存在一个尚未初始化的对象，而被其他线程抢先使用了
if (info == null)
{
info = new BiblioInfo();
info.RecPath = strRecPath;
this.m_biblioTable[strRecPath] = info;
}
info.OldXml = strXml;
info.Timestamp = baTimestamp;
info.RecPath = strRecPath;
}
return 1;
}
// 将刚刚 paste 进入的新行，进行处理，以便达到功能完满的水平
// TODO: 其实当前浏览列表中是应该允许 UNIMARC 和 USMARC 两类记录并存的
void ConvertPastedLines()
{
string strError = "";
int nRet = 0;
AmazonSearchForm amazon_searchform = this.MainForm.GetAmazonSearchForm();
foreach (ListViewItem item in this.listView_browse.SelectedItems)
{
if (item.Tag is AmazonSearchForm.ItemInfo)
{
AmazonSearchForm.ItemInfo origin = (AmazonSearchForm.ItemInfo)item.Tag;
string strRecPath = ListViewUtil.GetItemText(item, 0);
string strMARC = "";
nRet = amazon_searchform.GetItemInfo(origin,
out strMARC,
out strError);
if (nRet == -1)
goto ERROR1;
string strXml = "";
nRet = MarcUtil.Marc2Xml(strMARC,
"unimarc",
out strXml,
out strError);
if (nRet == -1)
goto ERROR1;
strRecPath = strRecPath + " @mem";
BiblioInfo info = new BiblioInfo();
info.RecPath = strRecPath;
this.m_biblioTable[strRecPath] = info;
info.OldXml = strXml;
info.Timestamp = null;
info.RecPath = strRecPath;
string strSytaxOID = "1.2.840.10003.5.1";
string strBrowseText = "";
nRet = BuildMarcBrowseText(
strSytaxOID,
strMARC,
out strBrowseText,
out strError);
string[] cols = strBrowseText.Split(new char[] { '\t' });
// 修改浏览行
ChangeCols(
item,
strRecPath,
cols);
}
}
return;
ERROR1:
MessageBox.Show(this, strError);
}
// 从 MARC 文件中导入
void menu_importFromMarcFile_Click(object sender, EventArgs e)
{
OpenMarcFileDlg dlg = new OpenMarcFileDlg();
GuiUtil.SetControlFont(dlg, this.Font);
dlg.IsOutput = false;
dlg.GetEncoding -= new GetEncodingEventHandler(dlg_GetEncoding);
dlg.GetEncoding += new GetEncodingEventHandler(dlg_GetEncoding);
dlg.FileName = this.MainForm.LinkedMarcFileName;
// dlg.CrLf = MainForm.LastCrLfIso2709;
dlg.EncodingListItems = Global.GetEncodingList(true);
// dlg.EncodingName = ""; GetEncodingForm.GetEncodingName(preferredEncoding);
// dlg.EncodingComment = "注: 原始编码方式为 " + GetEncodingForm.GetEncodingName(preferredEncoding);
// dlg.MarcSyntax = "<自动>"; // strPreferedMarcSyntax;
dlg.EnableMarcSyntax = true;
if (String.IsNullOrEmpty(this.MainForm.LinkedEncodingName) == false)
dlg.EncodingName = this.MainForm.LinkedEncodingName;
if (String.IsNullOrEmpty(this.MainForm.LinkedMarcSyntax) == false)
dlg.MarcSyntax = this.MainForm.LinkedMarcSyntax;
dlg.ShowDialog(this);
if (dlg.DialogResult != DialogResult.OK)
return;
// 储存用过的文件名
// 2009/9/21
this.MainForm.LinkedMarcFileName = dlg.FileName;
this.MainForm.LinkedEncodingName = dlg.EncodingName;
this.MainForm.LinkedMarcSyntax = dlg.MarcSyntax;
string strError = "";
_linkMarcFile = new LinkMarcFile();
int nRet = _linkMarcFile.Open(dlg.FileName,
out strError);
if (nRet == -1)
goto ERROR1;
_linkMarcFile.Encoding = dlg.Encoding;
_linkMarcFile.MarcSyntax = dlg.MarcSyntax;
ClearListViewItems();
stop.Style = StopStyle.EnableHalfStop;
stop.OnStop += new StopEventHandler(this.DoStop);
stop.Initial("正在从 MARC 文件导入 ...");
stop.BeginLoop();
this.listView_browse.BeginUpdate();
try
{
ListViewUtil.ClearSortColumns(this.listView_browse);
stop.SetProgressRange(0, _linkMarcFile.Stream.Length);
bool bEOF = false;
for (int i = 0; bEOF == false; i++)
{
Application.DoEvents(); // 出让界面控制权
if (stop != null && stop.State != 0)
{
strError = "用户中断";
goto ERROR1;
}
string strMARC = "";
byte[] baRecord = null;
// 获得下一条记录
// return:
// -1 error
// 0 succeed
// 1 reach end(当前返回的记录有效)
// 2 结束(当前返回的记录无效)
nRet = _linkMarcFile.NextRecord(out strMARC,
out baRecord,
out strError);
if (nRet == -1)
goto ERROR1;
if (nRet == 1)
bEOF = true;
if (nRet == 2)
break;
if (_linkMarcFile.MarcSyntax == "<自动>"
|| _linkMarcFile.MarcSyntax.ToLower() == "<auto>")
{
// 自动识别MARC格式
string strOutMarcSyntax = "";
// 探测记录的MARC格式 unimarc / usmarc / reader
// return:
// 0 没有探测出来。strMarcSyntax为空
// 1 探测出来了
nRet = MarcUtil.DetectMarcSyntax(strMARC,
out strOutMarcSyntax);
_linkMarcFile.MarcSyntax = strOutMarcSyntax; // 有可能为空，表示探测不出来
if (String.IsNullOrEmpty(_linkMarcFile.MarcSyntax) == true)
{
MessageBox.Show(this, "软件无法确定此 MARC 文件的 MARC 格式");
}
}
if (dlg.Mode880 == true && _linkMarcFile.MarcSyntax == "usmarc")
{
MarcRecord temp = new MarcRecord(strMARC);
MarcQuery.ToParallel(temp);
strMARC = temp.Text;
}
string strXml = "";
nRet = MarcUtil.Marc2XmlEx(strMARC,
_linkMarcFile.MarcSyntax,
ref strXml,
out strError);
if (nRet == -1)
goto ERROR1;
string strRecPath = i.ToString() + " @file";
BiblioInfo info = new BiblioInfo();
info.RecPath = strRecPath;
this.m_biblioTable[strRecPath] = info;
info.OldXml = strXml;
info.Timestamp = null;
info.RecPath = strRecPath;
string strSytaxOID = "";
if (_linkMarcFile.MarcSyntax == "unimarc")
strSytaxOID = "1.2.840.10003.5.1"; // unimarc
else if (_linkMarcFile.MarcSyntax == "usmarc")
strSytaxOID = "1.2.840.10003.5.10"; // usmarc
string strBrowseText = "";
if (strSytaxOID == "1.2.840.10003.5.1" // unimarc
|| strSytaxOID == "1.2.840.10003.5.10") // usmarc
{
nRet = BuildMarcBrowseText(
strSytaxOID,
strMARC,
out strBrowseText,
out strError);
if (nRet == -1)
strBrowseText = strError;
}
string[] cols = strBrowseText.Split(new char[] { '\t' });
// 创建浏览行
NewLine(
this.listView_browse,
strRecPath,
cols);
stop.SetMessage(i.ToString());
stop.SetProgressValue(_linkMarcFile.Stream.Position);
}
}
finally
{
this.listView_browse.EndUpdate();
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
stop.HideProgress();
stop.Style = StopStyle.None;
_linkMarcFile.Close();
}
return;
ERROR1:
MessageBox.Show(this, strError);
_linkMarcFile = null;
}
// 是否为尚未初始化的 BiblioInfo
static bool IsNullBiblioInfo(BiblioInfo info)
{
if (string.IsNullOrEmpty(info.OldXml) == true
&& string.IsNullOrEmpty(info.NewXml) == true)
return true;
return false;
}