/// <summary>
/// 刷新浏览行
/// </summary>
/// <param name="items_param">要刷新的 ListViewItem 集合</param>
/// <param name="strFormat">浏览格式。供调用 GetSearchResult() 时 strStyle 参数之用 </param>
/// <param name="bBeginLoop">是否要调用 stop.BeginLoop() </param>
/// <param name="bClearRestColumns">是否清除右侧多余的列内容</param>
/// <param name="strError">返回出错信息</param>
/// <returns>-1: 出错; 0: 成功</returns>
public int RefreshListViewLines(List<ListViewItem> items_param,
string strFormat,
bool bBeginLoop,
bool bClearRestColumns,
out string strError)
{
strError = "";
if (items_param.Count == 0)
return 0;
if (stop != null && bBeginLoop == true)
{
stop.Style = StopStyle.EnableHalfStop;
stop.OnStop += new StopEventHandler(this.DoStop);
stop.Initial("正在刷新浏览行 ...");
stop.BeginLoop();
this.EnableControls(false);
}
try
{
List<ListViewItem> items = new List<ListViewItem>();
List<string> recpaths = new List<string>();
foreach (ListViewItem item in items_param)
{
if (string.IsNullOrEmpty(item.Text) == true)
continue;
items.Add(item);
recpaths.Add(item.Text);
ClearOneChange(item, true);
}
if (stop != null)
stop.SetProgressRange(0, items.Count);
BrowseLoader loader = new BrowseLoader();
loader.Channel = Channel;
loader.Stop = stop;
loader.RecPaths = recpaths;
if (string.IsNullOrEmpty(strFormat) == true)
loader.Format = "id,cols";
else
loader.Format = strFormat;
int i = 0;
foreach (DigitalPlatform.CirculationClient.localhost.Record record in loader)
{
Application.DoEvents(); // 出让界面控制权
if (stop != null
&& stop.State != 0)
{
strError = "用户中断";
return -1;
}
Debug.Assert(record.Path == recpaths[i], "");
if (stop != null)
{
stop.SetMessage("正在刷新浏览行 " + record.Path + " ...");
stop.SetProgressValue(i);
}
ListViewItem item = items[i];
#if NO
if (record.Cols == null)
{
int c = 0;
foreach (ListViewItem.ListViewSubItem subitem in item.SubItems)
{
if (c != 0)
subitem.Text = "";
c++;
}
}
else
{
for (int c = 0; c < record.Cols.Length; c++)
{
ListViewUtil.ChangeItemText(item,
c + 1,
record.Cols[c]);
}
// TODO: 是否清除余下的列内容?
}
#endif
RefreshOneLine(item, record.Cols, bClearRestColumns);
i++;
}
return 0;
}
catch (Exception ex)
{
strError = ex.Message;
return -1;
}
finally
{
if (stop != null && bBeginLoop == true)
{
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
stop.HideProgress();
stop.Style = StopStyle.None;
this.EnableControls(true);
}
}
}
// 将书目记录中的对象资源写入外部文件
public static int WriteObjectFiles(Stop stop,
LibraryChannel channel,
string strBiblioRecPath,
ref XmlDocument biblio_dom,
string strOutputDir,
out string strError)
{
strError = "";
List<string> recpaths = new List<string>();
List<string> errors = new List<string>();
XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
nsmgr.AddNamespace("dprms", DpNs.dprms);
XmlNodeList nodes = biblio_dom.DocumentElement.SelectNodes("//dprms:file", nsmgr);
foreach (XmlElement node in nodes)
{
string strID = DomUtil.GetAttr(node, "id");
string strUsage = DomUtil.GetAttr(node, "usage");
string strRights = DomUtil.GetAttr(node, "rights");
string strResPath = strBiblioRecPath + "/object/" + strID;
strResPath = strResPath.Replace(":", "/");
recpaths.Add(strResPath);
}
try
{
BrowseLoader loader = new BrowseLoader();
loader.Channel = channel;
loader.Stop = stop;
loader.RecPaths = recpaths;
loader.Format = "id,metadata,timestamp";
int i = 0;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
Application.DoEvents();
if (stop != null && stop.State != 0)
{
strError = "用户中断";
return -1;
}
Debug.Assert(record.Path == recpaths[i], "");
XmlElement file = nodes[i] as XmlElement;
if (record.RecordBody.Result != null
&& record.RecordBody.Result.ErrorCode != ErrorCodeValue.NoError)
{
if (record.RecordBody.Result.ErrorCode == ErrorCodeValue.NotFound)
goto CONTINUE;
strError = record.RecordBody.Result.ErrorString;
file.SetAttribute("_error", strError);
errors.Add(strError);
goto CONTINUE;
}
string strMetadataXml = record.RecordBody.Metadata;
byte[] baMetadataTimestamp = record.RecordBody.Timestamp;
file.SetAttribute("_timestamp", ByteArray.GetHexTimeStampString(baMetadataTimestamp));
// TODO: 另一种方法是用 URL 数据库名 ObjectID 等共同构造一个文件名
string strGUID = Guid.NewGuid().ToString();
string strMetadataFileName = Path.Combine(strOutputDir, strGUID + ".met");
string strObjectFileName = Path.Combine(strOutputDir, strGUID + ".bin");
// metadata 写入外部文件
if (string.IsNullOrEmpty(strMetadataXml) == false)
{
PathUtil.CreateDirIfNeed(Path.GetDirectoryName(strMetadataFileName));
using (StreamWriter sw = new StreamWriter(strMetadataFileName))
{
sw.Write(strMetadataXml);
}
}
file.SetAttribute("_metadataFile", Path.GetFileName(strMetadataFileName));
// 对象内容写入外部文件
int nRet = DownloadObject(stop,
channel,
record.Path,
strObjectFileName,
out strError);
if (nRet == -1)
{
// TODO: 是否要重试几次?
file.SetAttribute("error", strError);
errors.Add(strError);
goto CONTINUE;
}
file.SetAttribute("_objectFile", Path.GetFileName(strObjectFileName));
#if NO
// 取metadata值
Hashtable values = StringUtil.ParseMedaDataXml(strMetadataXml,
out strError);
if (values == null)
{
file.SetAttribute("error", strError);
errors.Add(strError);
continue;
}
// metadata 中的一些属性，写入 file 元素属性？ _ 打头
// localpath
ListViewUtil.ChangeItemText(item, COLUMN_LOCALPATH, (string)values["localpath"]);
// size
ListViewUtil.ChangeItemText(item, COLUMN_SIZE, (string)values["size"]);
// mime
ListViewUtil.ChangeItemText(item, COLUMN_MIME, (string)values["mimetype"]);
// tiemstamp
string strTimestamp = ByteArray.GetHexTimeStampString(baMetadataTimestamp);
ListViewUtil.ChangeItemText(item, COLUMN_TIMESTAMP, strTimestamp);
#endif
CONTINUE:
i++;
}
if (errors.Count > 0)
{
strError = StringUtil.MakePathList(errors, "; ");
return -1;
}
return 0;
}
catch (Exception ex)
{
// TODO: 出现异常后，是否改为用原来的方法一个一个对象地获取 metadata?
strError = ex.Message;
return -1;
}
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="channel">通讯通道</param>
/// <param name="stop">停止对象</param>
/// <param name="items">ListViewItem 数组</param>
/// <param name="cacheTable">用于缓存的 Hashtable</param>
public ListViewPatronLoader(LibraryChannel channel,
Stop stop,
List<ListViewItem> items,
Hashtable cacheTable)
{
m_loader = new BrowseLoader();
m_loader.Channel = channel;
m_loader.Stop = stop;
m_loader.Format = "id,xml,timestamp";
// m_loader.GetBiblioInfoStyle = GetBiblioInfoStyle.Timestamp; // 附加信息只取得 timestamp
this.Items = items;
this.CacheTable = cacheTable;
}
/// <summary>
/// 刷新浏览行
/// </summary>
/// <param name="items_param">要刷新的 ListViewItem 集合</param>
/// <param name="strError">返回出错信息</param>
/// <returns>-1: 出错; 0: 成功</returns>
public int RefreshListViewLines(List<ListViewItem> items_param,
out string strError)
{
strError = "";
if (items_param.Count == 0)
return 0;
LibraryChannel channel = this.GetChannel();
stop.Style = StopStyle.EnableHalfStop;
stop.OnStop += new StopEventHandler(this.DoStop);
stop.Initial("正在刷新浏览行 ...");
stop.BeginLoop();
this.EnableControls(false);
try
{
List<ListViewItem> items = new List<ListViewItem>();
List<string> recpaths = new List<string>();
foreach (ListViewItem item in items_param)
{
if (string.IsNullOrEmpty(item.Text) == true)
continue;
items.Add(item);
recpaths.Add(item.Text);
ClearOneChange(item, true);
}
if (stop != null)
stop.SetProgressRange(0, items.Count);
BrowseLoader loader = new BrowseLoader();
loader.Channel = channel;
loader.Stop = stop;
loader.RecPaths = recpaths;
loader.Format = "id,cols";
int i = 0;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
Application.DoEvents(); // 出让界面控制权
if (stop != null
&& stop.State != 0)
{
strError = "用户中断";
return -1;
}
Debug.Assert(record.Path == recpaths[i], "");
if (stop != null)
{
stop.SetMessage("正在刷新浏览行 " + record.Path + " ...");
stop.SetProgressValue(i);
}
// TODO: 注意处理好 record.RecordBody.Result 带有出错信息的情形
ListViewItem item = items[i];
if (record.Cols == null)
{
int c = 0;
foreach (ListViewItem.ListViewSubItem subitem in item.SubItems)
{
if (c != 0)
subitem.Text = "";
c++;
}
}
else
{
for (int c = 0; c < record.Cols.Length; c++)
{
ListViewUtil.ChangeItemText(item,
c + 1,
record.Cols[c]);
}
// TODO: 是否清除余下的列内容?
}
i++;
}
return 0;
}
catch (Exception ex)
{
strError = "BiblioSearchForm RefreshListViewLines() exception: " + ExceptionUtil.GetAutoText(ex);
return -1;
}
finally
{
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
stop.HideProgress();
stop.Style = StopStyle.None;
this.ReturnChannel(channel);
this.EnableControls(true);
}
}
/// <summary>
/// 刷新浏览行
/// </summary>
/// <param name="items_param">要刷新的 ListViewItem 集合</param>
/// <param name="strFormat">浏览格式。供调用 GetSearchResult() 时 strStyle 参数之用 </param>
/// <param name="bBeginLoop">是否要调用 stop.BeginLoop() </param>
/// <param name="bClearRestColumns">是否清除右侧多余的列内容</param>
/// <param name="strError">返回出错信息</param>
/// <returns>-1: 出错; 0: 成功</returns>
public int RefreshListViewLines(List<ListViewItem> items_param,
string strFormat,
bool bBeginLoop,
bool bClearRestColumns,
out string strError)
{
strError = "";
if (items_param.Count == 0)
return 0;
if (stop != null && bBeginLoop == true)
{
stop.Style = StopStyle.EnableHalfStop;
stop.OnStop += new StopEventHandler(this.DoStop);
stop.Initial("正在刷新浏览行 ...");
stop.BeginLoop();
this.EnableControls(false);
}
try
{
List<ListViewItem> items = new List<ListViewItem>();
List<string> recpaths = new List<string>();
foreach (ListViewItem item in items_param)
{
if (string.IsNullOrEmpty(item.Text) == true)
continue;
items.Add(item);
recpaths.Add(item.Text);
// TODO: 对出错状态的行不要清除修改状态
ClearOneChange(item, true);
}
if (stop != null)
stop.SetProgressRange(0, items.Count);
BrowseLoader loader = new BrowseLoader();
loader.Channel = Channel;
loader.Stop = stop;
loader.RecPaths = recpaths;
if (string.IsNullOrEmpty(strFormat) == true)
loader.Format = "id,cols";
else
loader.Format = strFormat;
int i = 0;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
Application.DoEvents(); // 出让界面控制权
if (stop != null
&& stop.State != 0)
{
strError = "用户中断";
return -1;
}
Debug.Assert(record.Path == recpaths[i], "");
if (stop != null)
{
stop.SetMessage("正在刷新浏览行 " + record.Path + " ...");
stop.SetProgressValue(i);
}
ListViewItem item = items[i];
// TODO: 注意保护好事项的背景色?
// TODO: 注意处理好 record.RecordBody.Result 带有出错信息的情形
RefreshOneLine(item, record.Cols, bClearRestColumns);
i++;
}
return 0;
}
catch (Exception ex)
{
strError = "SearchFormBase RefreshListViewLines() {6BB2AEC9-B53F-4745-A655-AA9B286554B8} exception: " + ExceptionUtil.GetAutoText(ex);
return -1;
}
finally
{
if (stop != null && bBeginLoop == true)
{
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
stop.HideProgress();
stop.Style = StopStyle.None;
this.EnableControls(true);
}
}
}
