int DoSearch(out string strError)
{
strError = "";
/*
* string strServerName = "";
*
* strServerName = this.textBox_serverName.Text;
*
* if (String.IsNullOrEmpty(strServerName) == true)
* {
* // 如果servername text为空，则从发起路径中获得servername
* strServerName = GetServerName(this.RecordPath);
* if (String.IsNullOrEmpty(strServerName) == true)
* {
* strError = "在没有指定服务器名的情况下，必须指定发起路径";
* return -1;
* }
* }*/
string strProjectName = "";
if (this.comboBox_projectName.Text == "" ||
this.comboBox_projectName.Text == "{default}" ||
this.comboBox_projectName.Text == "<default>" ||
this.comboBox_projectName.Text == "<默认>")
{
// 获得和一个来源路径相关的缺省查重方案
string strDatabasePath = "";
strProjectName = GetDefaultProjectName(this.RecordPath,
out strDatabasePath);
if (String.IsNullOrEmpty(strProjectName) == true)
{
strError = "没有定义和发起数据库 '" + strDatabasePath + "' 关联的缺省查重方案，因此无法进行查重...";
return(-1);
}
this.comboBox_projectName.Text = strProjectName; // 将实际用到的查重方案名显示出来
}
else
{
strProjectName = this.comboBox_projectName.Text;
}
this.m_nodeProject = this.dom.DocumentElement.SelectSingleNode("//project[@name='" + strProjectName + "']");
if (this.m_nodeProject == null)
{
strError = "没有定义名字为 '" + strProjectName + "' 的查重方案";
return(-1);
}
stop.OnStop += new StopEventHandler(this.DoStop);
stop.SetMessage("开始检索 ...");
stop.BeginLoop();
this.Update();
this.EnableControls(false);
this.EventFinish.Reset();
this.m_bInSearch = true;
try
{
this.ClearDupState(true);
this.listView_browse.Items.Clear();
// 列出<project>元素下的所有<database>元素
XmlNodeList databases = this.m_nodeProject.SelectNodes("database");
for (int i = 0; i < databases.Count; i++)
{
XmlNode nodeDatabase = databases[i];
int nRet = DoOneDatabase(
nodeDatabase,
out strError);
if (nRet == -1)
{
return(-1);
}
}
// 排序
{
ColumnSortStyle sortStyle = ColumnSortStyle.RightAlign;
this.SortColumns.SetFirstColumn(1,
sortStyle,
this.listView_browse.Columns,
true);
this.SortColumns[0].Asc = false; // 大的在前
this.SortColumns.RefreshColumnDisplay(this.listView_browse.Columns);
// 排序
this.listView_browse.ListViewItemSorter = new SortColumnsComparer(this.SortColumns);
this.listView_browse.ListViewItemSorter = null;
}
// 显示查重状态
this.SetDupState();
}
finally
{
this.EventFinish.Set();
this.m_bInSearch = false;
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
EnableControls(true);
}
// 命中数
return(this.listView_browse.Items.Count);
}
// 下载资源，保存到备份文件
static int WriteResToBackupFile(
IWin32Window owner,
RmsChannel channel,
DigitalPlatform.Stop stop,
Stream outputfile,
string strXmlRecPath,
string[] res_ids,
out string strError)
{
strError = "";
long lRet;
for (int i = 0; i < res_ids.Length; i++)
{
if (owner != null)
{
Application.DoEvents(); // 出让界面控制权
}
if (stop != null && stop.State != 0)
{
if (owner != null)
{
DialogResult result = MessageBox.Show(owner,
"确实要中断当前批处理操作?",
"导出数据",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2);
if (result == DialogResult.Yes)
{
strError = "用户中断";
return(-1);
}
else
{
stop.Continue();
}
}
else
{
strError = "用户中断";
return(-1);
}
}
string strID = res_ids[i].Trim();
if (string.IsNullOrEmpty(strID))
{
continue;
}
string strResPath = strXmlRecPath + "/object/" + strID;
string strMetaData;
if (stop != null)
{
stop.SetMessage("正在下载 " + strResPath);
}
byte[] baOutputTimeStamp = null;
string strOutputPath;
REDO_GETRES:
lRet = channel.GetRes(strResPath,
(Stream)null, // 故意不获取资源体
stop,
"metadata,timestamp,outputpath",
null,
out strMetaData, // 但是要获得metadata
out baOutputTimeStamp,
out strOutputPath,
out strError);
if (lRet == -1)
{
if (channel.OriginErrorCode == rmsws_localhost.ErrorCodeValue.NotFoundObjectFile)
{
continue; // TODO: 返回警告信息
}
if (owner != null)
{
// TODO: 允许重试
DialogResult redo_result = MessageBox.Show(owner,
"获取记录 '" + strResPath + "' 时出现错误: " + strError + "\r\n\r\n重试，还是中断当前批处理操作?\r\n(Retry 重试；Cancel 中断批处理)",
"导出数据",
MessageBoxButtons.RetryCancel,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button1);
if (redo_result == DialogResult.Cancel)
{
return(-1);
}
goto
REDO_GETRES;
}
else
{
return(-1);
}
}
long lResStart = 0;
// 写res的头。
// 如果不能预先确知整个res的长度，可以用随便一个lTotalLength值调用本函数，
// 但是需要记忆下函数所返回的lStart，最后调用EndWriteResToBackupFile()。
// 如果能预先确知整个res的长度，则最后不必调用EndWriteResToBackupFile()
long lRet0 = Backup.BeginWriteResToBackupFile(
outputfile,
0, // 未知
out lResStart);
byte[] timestamp = baOutputTimeStamp;
ResPath respath = new ResPath();
respath.Url = channel.Url;
respath.Path = strOutputPath; // strResPath;
// strMetaData还要加入资源id?
StringUtil.ChangeMetaData(ref strMetaData,
strID,
null,
null,
null,
respath.FullPath,
ByteArray.GetHexTimeStampString(baOutputTimeStamp));
lRet = Backup.WriteResMetadataToBackupFile(outputfile,
strMetaData);
if (lRet == -1)
{
return(-1);
}
long lBodyStart = 0;
// 写res body的头。
// 如果不能预先确知body的长度，可以用随便一个lBodyLength值调用本函数，
// 但是需要记忆下函数所返回的lBodyStart，最后调用EndWriteResBodyToBackupFile()。
// 如果能预先确知body的长度，则最后不必调用EndWriteResBodyToBackupFile()
lRet = Backup.BeginWriteResBodyToBackupFile(
outputfile,
0, // 未知
out lBodyStart);
if (lRet == -1)
{
return(-1);
}
if (stop != null)
{
stop.SetMessage("正在下载 " + strResPath + " 的数据体");
}
REDO_GETRES_1:
lRet = channel.GetRes(strResPath,
outputfile,
stop,
"content,data,timestamp", //"content,data,timestamp"
timestamp,
out strMetaData,
out baOutputTimeStamp,
out strOutputPath,
out strError);
if (lRet == -1)
{
if (channel.ErrorCode == ChannelErrorCode.EmptyRecord ||
channel.ErrorCode == ChannelErrorCode.NotFoundObjectFile) // 2017/7/13
{
// 空记录
}
else
{
if (owner != null)
{
// TODO: 允许重试
DialogResult redo_result = MessageBox.Show(owner,
"获取记录 '" + strResPath + "' 时出现错误: " + strError + "\r\n\r\n重试，还是中断当前批处理操作?\r\n(Retry 重试；Cancel 中断批处理)",
"导出数据",
MessageBoxButtons.RetryCancel,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button1);
if (redo_result == DialogResult.Cancel)
{
return(-1);
}
goto
REDO_GETRES_1;
}
else
{
return(-1);
}
}
}
long lBodyLength = outputfile.Position - lBodyStart - 8;
// res body收尾
lRet = Backup.EndWriteResBodyToBackupFile(
outputfile,
lBodyLength,
lBodyStart);
if (lRet == -1)
{
return(-1);
}
long lTotalLength = outputfile.Position - lResStart - 8;
lRet = Backup.EndWriteResToBackupFile(
outputfile,
lTotalLength,
lResStart);
if (lRet == -1)
{
return(-1);
}
}
return(0);
}