// 获取指纹信息，追加到结果集文件的尾部
// parameters:
// update_table key为读者记录路径
void AppendFingerprintInfo(
LibraryChannel channel,
DpResultSet resultset,
Hashtable update_table,
CancellationToken token)
{
List <string> lines = new List <string>();
foreach (string recpath in update_table.Keys)
{
lines.Add(recpath);
}
BrowseLoader loader = new BrowseLoader();
loader.RecPaths = lines;
loader.Channel = channel;
loader.Format = $"id,cols,format:cfgs/browse_{this.BrowseStyle}";
loader.Prompt += this.Loader_Prompt;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
token.ThrowIfCancellationRequested();
this.ShowMessage("追加 " + record.Path);
if (record.Cols == null || record.Cols.Length < 3)
{
string strError = $"record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_{this.BrowseStyle}";
// TODO: 并发操作的情况下，会在中途出现读者记录被别的前端修改的情况，这里似乎可以continue
throw new Exception(strError);
}
// 如果证条码号为空，无法建立对照关系，要跳过
if (string.IsNullOrEmpty(record.Cols[1]) == true)
{
continue;
}
DpRecord item = new DpRecord(record.Path);
// timestamp | barcode | fingerprint
item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
resultset.Add(item);
}
}
// 填充列表内容
// return:
// -1 error
// 0 没有填充任何内容，列表为空
// 1 已经填充了内容
public int LoadObject(
LibraryChannel channel,
XmlNodeList nodes,
string dp2library_version,
out string strError)
{
strError = "";
bool bOldEnabled = this.Enabled;
this.Enabled = bOldEnabled;
try
{
this.ListView.Items.Clear();
List<string> recpaths = new List<string>();
List<ListViewItem> items = new List<ListViewItem>();
// 第一阶段，把来自 XML 记录中的 <file> 元素信息填入。
// 这样就保证了至少可以在保存书目记录阶段能还原 XML 记录中的相关部分
foreach (XmlElement node in nodes)
{
string strID = DomUtil.GetAttr(node, "id");
string strUsage = DomUtil.GetAttr(node, "usage");
string strRights = DomUtil.GetAttr(node, "rights");
ListViewItem item = new ListViewItem();
// state
SetLineInfo(item, LineState.Normal);
// id
ListViewUtil.ChangeItemText(item, COLUMN_ID, strID);
// usage
ListViewUtil.ChangeItemText(item, COLUMN_USAGE, strUsage);
// rights
ListViewUtil.ChangeItemText(item, COLUMN_RIGHTS, strRights);
this.ListView.Items.Add(item);
items.Add(item);
string strResPath = this.BiblioRecPath + "/object/" + strID;
strResPath = strResPath.Replace(":", "/");
recpaths.Add(strResPath);
}
if (StringUtil.CompareVersion(dp2library_version, "2.58") >= 0)
{
// 新方法，速度快
#if NO
Stop.OnStop += new StopEventHandler(this.DoStop);
Stop.Initial("正在下载对象的元数据");
Stop.BeginLoop();
#endif
Stop.Initial("正在下载对象的元数据");
try
{
BrowseLoader loader = new BrowseLoader();
loader.Channel = channel;
loader.Stop = this.Stop;
loader.RecPaths = recpaths;
loader.Format = "id,metadata,timestamp";
int i = 0;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
Application.DoEvents();
if (this.Stop != null && this.Stop.State != 0)
{
strError = "用户中断";
return -1;
}
Debug.Assert(record.Path == recpaths[i], "");
ListViewItem item = items[i];
if (record.RecordBody.Result != null
&& record.RecordBody.Result.ErrorCode != ErrorCodeValue.NoError)
{
strError = record.RecordBody.Result.ErrorString; // 2016/5/27
ListViewUtil.ChangeItemText(item, COLUMN_STATE, strError);
item.ImageIndex = 1; // error!
i++;
continue;
}
string strMetadataXml = record.RecordBody.Metadata;
//Debug.Assert(string.IsNullOrEmpty(strMetadataXml) == false, "");
byte[] baMetadataTimestamp = record.RecordBody.Timestamp;
//Debug.Assert(baMetadataTimestamp != null, "");
// 取metadata值
Hashtable values = StringUtil.ParseMetaDataXml(strMetadataXml,
out strError);
if (values == null)
{
ListViewUtil.ChangeItemText(item, COLUMN_STATE, strError);
item.ImageIndex = 1; // error!
continue;
}
// 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);
i++;
}
}
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;
}
finally
{
#if NO
Stop.EndLoop();
Stop.OnStop -= new StopEventHandler(this.DoStop);
Stop.Initial("");
#endif
Stop.Initial("");
}
}
else
{
// *** 以前的方法，速度较慢
// 第二阶段，从 dp2library 服务器获取 metadata 信息，填充其他字段内容
foreach (ListViewItem item in items)
{
string strID = ListViewUtil.GetItemText(item, COLUMN_ID);
string strMetadataXml = "";
byte[] baMetadataTimestamp = null;
// 获得一个对象资源的元数据
int nRet = GetOneObjectMetadata(
channel,
this.BiblioRecPath,
strID,
out strMetadataXml,
out baMetadataTimestamp,
out strError);
if (nRet == -1)
{
if (channel.ErrorCode == ErrorCode.AccessDenied)
{
return -1;
}
// item.SubItems.Add(strError);
ListViewUtil.ChangeItemText(item, COLUMN_STATE, strError);
item.ImageIndex = 1; // error!
continue;
}
// 取metadata值
Hashtable values = StringUtil.ParseMetaDataXml(strMetadataXml,
out strError);
if (values == null)
{
ListViewUtil.ChangeItemText(item, COLUMN_STATE, strError);
item.ImageIndex = 1; // error!
continue;
}
// 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);
}
}
this.Changed = false;
if (this.ListView.Items.Count > 0)
return 1;
return 0;
}
finally
{
this.Enabled = bOldEnabled;
}
}
// 获取指纹信息，追加到结果集文件的尾部
// parameters:
// update_table key为读者记录路径
static void AppendFingerprintInfo(
LibraryChannel channel,
DpResultSet resultset,
Hashtable update_table,
CancellationToken token)
{
List <string> lines = new List <string>();
foreach (string recpath in update_table.Keys)
{
lines.Add(recpath);
}
BrowseLoader loader = new BrowseLoader();
loader.RecPaths = lines;
loader.Channel = channel;
loader.Format = "id,cols,format:cfgs/browse_fingerprint";
loader.Prompt += Loader_Prompt;
foreach (DigitalPlatform.LibraryClient.localhost.Record record in loader)
{
token.ThrowIfCancellationRequested();
ShowMessage("追加 " + record.Path);
if (record.Cols == null || record.Cols.Length < 3)
{
string strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
// TODO: 并发操作的情况下，会在中途出现读者记录被别的前端修改的情况，这里似乎可以continue
throw new Exception(strError);
}
// 如果证条码号为空，无法建立对照关系，要跳过
if (string.IsNullOrEmpty(record.Cols[1]) == true)
{
continue;
}
DpRecord item = new DpRecord(record.Path);
// timestamp | barcode | fingerprint
item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
resultset.Add(item);
}
#if NO
// 需要获得更新的事项，然后追加到结果集文件的尾部
// 注意，需要定期彻底重建结果集文件，以便回收多余空间
List <string> lines = new List <string>();
foreach (string recpath in update_table.Keys)
{
lines.Add(recpath);
if (lines.Count >= 100)
{
List <DigitalPlatform.LibraryClient.localhost.Record> records = null;
GetSomeFingerprintData(
channel,
lines,
token,
out records);
foreach (DigitalPlatform.LibraryClient.localhost.Record record in records)
{
if (record.Cols == null || record.Cols.Length < 3)
{
strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
// TODO: 并发操作的情况下，会在中途出现读者记录被别的前端修改的情况，这里似乎可以continue
return(-1);
}
// 如果证条码号为空，无法建立对照关系，要跳过
if (string.IsNullOrEmpty(record.Cols[1]) == true)
{
continue;
}
DpRecord item = new DpRecord(record.Path);
// timestamp | barcode | fingerprint
item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
resultset.Add(item);
}
lines.Clear();
}
}
if (lines.Count > 0)
{
List <DigitalPlatform.LibraryClient.localhost.Record> records = null;
GetSomeFingerprintData(
channel,
lines,
token,
out records);
foreach (DigitalPlatform.LibraryClient.localhost.Record record in records)
{
if (record.Cols == null || record.Cols.Length < 3)
{
strError = "record.Cols error ... 有可能是因为读者库缺乏配置文件 cfgs/browse_fingerprint";
// TODO: 并发操作的情况下，会在中途出现读者记录被别的前端修改的情况，这里似乎可以continue
return(-1);
}
DpRecord item = new DpRecord(record.Path);
// timestamp | barcode | fingerprint
item.BrowseText = record.Cols[0] + "|" + record.Cols[1] + "|" + record.Cols[2];
resultset.Add(item);
}
}
return(0);
#endif
}
// return:
// -1 error
// 0 没有填充任何内容，列表为空
// 1 已经填充了内容
public int LoadObject(
LibraryChannel channel,
Stop stop,
XmlNodeList nodes,
string dp2library_version,
out string strError)
{
strError = "";
this.Clear();
List <string> recpaths = new List <string>();
// 第一阶段，把来自 XML 记录中的 <file> 元素信息填入。
// 这样就保证了至少可以在保存书目记录阶段能还原 XML 记录中的相关部分
foreach (XmlElement node in nodes)
{
ObjectInfo info = new ObjectInfo();
info.ID = node.GetAttribute("id");
info.Usage = node.GetAttribute("usage");
info.Rights = node.GetAttribute("rights");
this.Add(info);
string strResPath = this.HostRecPath + "/object/" + info.ID;
strResPath = strResPath.Replace(":", "/");
recpaths.Add(strResPath);
}
if (recpaths.Count > 0)
{
if (StringUtil.CompareVersion(dp2library_version, "2.58") >= 0)
{
// 新方法，速度快
if (stop != null)
{
stop.Initial("正在下载对象的元数据");
}
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)
{
if (stop != null && stop.State != 0)
{
strError = "用户中断";
return(-1);
}
Debug.Assert(record.Path == recpaths[i], "");
ObjectInfo info = this[i];
if (record.RecordBody.Result != null &&
record.RecordBody.Result.ErrorCode != ErrorCodeValue.NoError)
{
info.ErrorInfo = record.RecordBody.Result.ErrorString;
i++;
continue;
}
string strMetadataXml = record.RecordBody.Metadata;
info.Metadata = strMetadataXml;
byte[] baMetadataTimestamp = record.RecordBody.Timestamp;
//Debug.Assert(baMetadataTimestamp != null, "");
#if NO
// 取metadata值
Hashtable values = StringUtil.ParseMedaDataXml(strMetadataXml,
out strError);
if (values == null)
{
info.ErrorInfo = strError;
continue;
}
// localpath
info.FileName = (string)values["localpath"];
// size
info.Size = (string)values["size"];
// mime
info.Mime = (string)values["mimetype"];
#endif
// tiemstamp
string strTimestamp = ByteArray.GetHexTimeStampString(baMetadataTimestamp);
info.Timestamp = strTimestamp;
i++;
}
}
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 = "LoadObject() 异常: " + ex.Message;
return(-1);
}
finally
{
stop.Initial("");
}
}
else
{
strError = "请升级 dp2library 到 2.58 以上版本";
return(-1);
}
}
this.Changed = false;
if (this.Count > 0)
{
return(1);
}
return(0);
}
void FillBrowseList()
{
this.listView_browse.Items.Clear();
List <string> recpaths = StringUtil.SplitList(this.DupBiblioRecPathList);
LibraryChannel channel = Program.MainForm.GetChannel();
try
{
// 获得书目记录
BrowseLoader loader = new BrowseLoader();
loader.Channel = channel;
// loader.Stop = this.Progress;
loader.Format = "id,xml,cols,timestamp";
loader.RecPaths = recpaths;
int i = 0;
foreach (DigitalPlatform.LibraryClient.localhost.Record biblio_item in loader)
{
ListViewItem item = null;
if (biblio_item.RecordBody != null &&
biblio_item.RecordBody.Result != null &&
biblio_item.RecordBody.Result.ErrorCode != DigitalPlatform.LibraryClient.localhost.ErrorCodeValue.NoError)
{
item = Global.AppendNewLine(
this.listView_browse,
biblio_item.Path,
new string[] { biblio_item.RecordBody.Result.ErrorString });
item.Tag = null;
}
else
{
item = Global.AppendNewLine(
this.listView_browse,
biblio_item.Path,
biblio_item.Cols);
ItemTag tag = new ItemTag();
tag.RecPath = biblio_item.Path;
tag.Xml = biblio_item.RecordBody.Xml;
tag.Timestamp = biblio_item.RecordBody.Timestamp;
item.Tag = tag;
}
i++;
}
if (this.listView_browse.Items.Count > 0)
{
ListViewUtil.SelectLine(this.listView_browse.Items[0], true);
}
}
finally
{
Program.MainForm.ReturnChannel(channel);
}
if (this.AutoSelectMode == true)
{
SortItems();
if (this.listView_browse.Items.Count > 0)
{
ListViewUtil.SelectLine(this.listView_browse.Items[0], true);
if (this.MergeStyle == dp2Circulation.MergeStyle.None)
{
// 自动选择保留目标书目记录的方式
this.MergeStyle = MergeStyle.ReserveTargetBiblio;
}
if ((this.MergeStyle & dp2Circulation.MergeStyle.ReserveTargetBiblio) == dp2Circulation.MergeStyle.ReserveTargetBiblio)
{
this.Action = "mergeTo"; // useTargetBiblio
}
else
{
this.Action = "mergeToUseSourceBiblio";
}
this.Close();
}
}
}
