// 从服务器获得元数据
public void GetMetaDataParam(DigitalPlatform.Xml.ElementItem element)
{
string strID = element.GetAttrValue("id");
if (strID == null || strID == "")
{
Debug.Assert(false);
}
// 如果没有挂回调函数，警告
if (this.procDownloadOneMetaData == null)
{
element.SetAttrValue("__mime", "?mime");
element.SetAttrValue("__localpath", "?localpath");
element.SetAttrValue("__size", "?size");
element.SetAttrValue("__timestamp", "?timestamp");
m_bChanged = true;
}
else
{
string strExistTimeStamp = element.GetAttrValue("__timestamp");
if (strExistTimeStamp != null && strExistTimeStamp != "")
{
ChangeLine(strID,
null, // newid
null, // state
element.GetAttrValue("__localpath"),
element.GetAttrValue("__mime"),
element.GetAttrValue("__size"),
element.GetAttrValue("__timestamp") );
return;
}
m_bChanged = true;
string strMetaData = "";
string strError = "";
byte [] timestamp = null;
int nRet = this.procDownloadOneMetaData(
strID,
out strMetaData,
out timestamp,
out strError);
if (nRet == -1)
{
element.SetAttrValue("__localpath",
strError);
return;
}
if (strMetaData == "")
{
return;
}
// 取metadata
Hashtable values = StringUtil.ParseMedaDataXml(strMetaData,
out strError);
if (values == null)
{
element.SetAttrValue("__localpath",
strError);
return;
}
string strTimeStamp = ByteArray.GetHexTimeStampString(timestamp);
element.SetAttrValue("__mime",
(string)values["mimetype"]);
element.SetAttrValue("__localpath",
(string)values["localpath"]);
element.SetAttrValue("__size",
(string)values["size"]);
element.SetAttrValue("__timestamp",
(string)strTimeStamp);
}
}
// ?
// 在listview加一行,如果此行已存在，则修改其内容
public void NewLine(DigitalPlatform.Xml.ElementItem fileitem,
bool bIsNewFile)
{
string strID = fileitem.GetAttrValue("id");
if (strID == null || strID == "")
{
Debug.Assert(bIsNewFile == true, "必须是客户端文件才能无id属性");
}
string strState;
if (bIsNewFile == false)
strState = this.ServerFileState;
else
strState = this.NewFileState;
// 维护id表
if (strID != null && strID != "")
{
if (m_tableFileId.Contains((object)strID) == false)
m_tableFileId.Add(strID, (object)true);
}
ListViewItem item = SearchLine(strID);
if (item == null)
{
item = new ListViewItem(strID, 0);
this.Items.Add(item);
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
m_bChanged = true;
}
else
{
// 2006/6/22
// 重复插入.
// 插入在已经发现的事项前面
int index = this.Items.IndexOf(item);
item = new ListViewItem(strID, 0);
this.Items.Insert(index, item);
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
item.SubItems.Add("");
m_bChanged = true;
}
string strOldState = fileitem.GetAttrValue("__state");
if (strOldState != strState)
fileitem.SetAttrValue("__state", strState);
}