// 构造一个配置文件类型的对象
public static DatabaseObject BuildFileObject(
string strName,
Stream fs)
{
DatabaseObject obj = new DatabaseObject();
fs.Seek(0, SeekOrigin.Begin);
obj.Content = new byte[fs.Length];
obj.Name = strName;
obj.Type = ResTree.RESTYPE_FILE;
int nRet = fs.Read(obj.Content, 0, (int)fs.Length);
if (nRet != fs.Length)
{
throw(new Exception("read stream error"));
}
return obj;
}
// 构造一个目录类型的对象
public static DatabaseObject BuildDirObject(
string strName)
{
DatabaseObject obj = new DatabaseObject();
obj.Content = null;
obj.Name = strName;
obj.Type = ResTree.RESTYPE_FOLDER;
return obj;
}
// 克隆
public DatabaseObject Clone()
{
DatabaseObject newObj = new DatabaseObject();
newObj.Name = this.Name;
newObj.Type = this.Type;
newObj.Style = this.Style;
newObj.Content = ByteArray.GetCopy(this.Content);
newObj.TimeStamp = ByteArray.GetCopy(this.TimeStamp);
// 递归
for(int i=0;i<this.Children.Count;i++)
{
DatabaseObject newChild = ((DatabaseObject)this.Children[i]).Clone();
newChild.Parent = this;
newObj.Children.Add(newChild);
}
return newObj;
}
// 构造一个配置文件类型的对象
public static DatabaseObject BuildFileObject(
string strName,
string strFileName)
{
DatabaseObject obj = new DatabaseObject();
FileStream fs = File.Open(strFileName, FileMode.Open);
if (fs.Length > 1024*1024)
{
throw(new Exception("obj " +strFileName+ " too larg"));
}
obj.Content = new byte[fs.Length];
obj.Name = strName;
obj.Type = ResTree.RESTYPE_FILE;
int nRet = fs.Read(obj.Content, 0, (int)fs.Length);
if (nRet != fs.Length)
{
throw(new Exception("read obj " +strFileName+ " error"));
}
fs.Close();
return obj;
}
// 从剪贴板粘贴整个树
private void menu_pasteTreeFromClipboard_Click(object sender, System.EventArgs e)
{
IDataObject iData = Clipboard.GetDataObject();
if (iData == null
|| iData.GetDataPresent(typeof(DatabaseObject)) == false)
{
MessageBox.Show(this, "剪贴板中尚不存在DatabaseObject类型数据");
return;
}
DatabaseObject root = (DatabaseObject)iData.GetData(typeof(DatabaseObject));
if (root == null)
{
MessageBox.Show(this, "GetData error");
return;
}
this.Nodes.Clear();
// 把以前树上的全部节点归纳为删除操作记入日志
PutAllObjToLog(ObjEventOper.Delete,
this.Root);
//StorageMode oldmode = this.StorageMode;
//this.StorageMode = StorageMode.Memory;
//DatabaseObject oldroot = this.Root;
this.Root = root;
this.FillAll(null);
//this.Root = oldroot;
//this.StorageMode = oldmode;
// 把现在树上全部节点作为新增记入日志
PutAllObjToLog(ObjEventOper.New,
this.Root);
}
public void Initial(DatabaseObject objFile,
string strPath)
{
this.Obj = objFile;
this.Path = strPath;
// this.textBox_path.Text = this.Path;
}
// 将内存对象插入TreeView树
// (暂不改变服务器端的真正对象)
// parameters:
// nodeInsertPos 插入参考节点，在此前插入。如果==null，表示在parent下级末尾追加
public int InsertObject(TreeNode nodeParent,
TreeNode nodeInsertPos,
DatabaseObject obj,
out string strError)
{
strError = "";
int nRet = 0;
TreeNodeCollection children = null;
if (nodeParent == null)
{
children = this.Nodes;
}
else
{
children = nodeParent.Nodes;
}
ArrayList aObject = new ArrayList();
if (obj.Type == -1 || obj.Type == ResTree.RESTYPE_DB)
{
aObject.AddRange(obj.Children);
}
else
{
aObject.Add(obj);
}
for (int i = 0; i < aObject.Count; i++)
{
DatabaseObject perObj = (DatabaseObject)aObject[i];
TreeNode nodeNew = new TreeNode(perObj.Name,
perObj.Type, perObj.Type);
Debug.Assert(perObj.Type != -1, "类型值尚未初始化");
Debug.Assert(perObj.Type != ResTree.RESTYPE_DB, "插入类型不能为DB");
if (nodeInsertPos == null)
children.Add(nodeNew);
else
{
int index = children.IndexOf(nodeInsertPos);
if (index == -1)
children.Add(nodeNew);
else
children.Insert(index, nodeNew);
}
string strPath = this.GetPath(nodeNew);
// 把修改记录到日志
ObjEvent objevent = new ObjEvent();
objevent.Obj = perObj;
objevent.Oper = ObjEventOper.New;
objevent.Path = strPath;
this.Log.Add(objevent);
/*
// 在服务器端兑现
if (this.StorageMode == StorageMode.Real)
{
MemoryStream stream = null;
if (perObj.Type == ResTree.RESTYPE_FILE)
stream = new MemoryStream(perObj.Content);
string strPath = this.GetPath(nodeNew);
nRet = NewServerSideObject(strPath,
nodeNew.ImageIndex,
stream,
perObj.TimeStamp,
out strError);
if (nRet == -1)
return -1;
}
*/
if (perObj.Type == ResTree.RESTYPE_FOLDER)
{
// 递归
// ResTree.SetLoading(nodeNew);
for (int j = 0; j < perObj.Children.Count; j++)
{
nRet = InsertObject(nodeNew,
null,
(DatabaseObject)perObj.Children[j],
out strError);
if (nRet == -1)
return -1;
}
}
if (nodeNew.Parent != null)
nodeNew.Parent.Expand();
}
return 0;
}
// 创建新对象
void DoNewObject(bool bInsertAsChild)
{
NewObjectDlg dlg = new NewObjectDlg();
dlg.Font = GuiUtil.GetDefaultFont();
dlg.Type = ResTree.RESTYPE_FILE;
dlg.ShowDialog(this);
if (dlg.DialogResult != DialogResult.OK)
return;
string strPath = "";
string strError = "";
DatabaseObject obj = new DatabaseObject();
obj.Name = dlg.textBox_objectName.Text;
obj.Type = dlg.Type;
obj.Changed = true;
TreeNode node = new TreeNode(obj.Name, obj.Type, obj.Type);
TreeNode nodeParent = null;
if (bInsertAsChild == false)
{
// 插入同级
// 查重
TreeNode nodeDup = TreeViewUtil.FindNodeByText((TreeView)this,
this.SelectedNode != null ? this.SelectedNode.Parent : null,
dlg.textBox_objectName.Text);
if (nodeDup != null)
{
strError = "同名对象已经存在。放弃操作。";
goto ERROR1;
}
if (this.SelectedNode == null)
{
strError = "尚未选择基准对象";
goto ERROR1;
}
nodeParent = this.SelectedNode.Parent;
if (nodeParent == null)
nodeParent = this.Nodes[0];
}
else
{
// 插入下级
// 查重
TreeNode nodeDup = TreeViewUtil.FindNodeByText((TreeView)this,
this.SelectedNode,
dlg.textBox_objectName.Text);
if (nodeDup != null)
{
strError = "同名对象已经存在。放弃操作。";
goto ERROR1;
}
nodeParent = this.SelectedNode;
if (nodeParent == null)
nodeParent = this.Nodes[0];
}
nodeParent.Nodes.Add(node);
strPath = TreeViewUtil.GetPath(nodeParent, '/');
DatabaseObject objParent = this.Root.LocateObject(strPath);
if (objParent == null)
{
strError = "路径为 '" + strPath + "' 的内存对象没有找到...";
goto ERROR1;
}
obj.Parent = objParent;
objParent.Children.Add(obj);
strPath = TreeViewUtil.GetPath(node, '/');
// 把修改记录到日志
ObjEvent objevent = new ObjEvent();
objevent.Obj = obj;
objevent.Oper = ObjEventOper.New;
objevent.Path = strPath;
this.Log.Add(objevent);
/*
int nRet = NewServerSideObject(strPath,
dlg.Type,
null,
null,
out strError);
if (nRet == -1)
goto ERROR1;
// 刷新?
FillAll(null);
*/
return;
ERROR1:
MessageBox.Show(this, strError);
return;
}
public int CreateMemoryObject(out string strError)
{
strError = "";
if (this.DbName == "" || this.DbName == "?") // 2006/1/20
return 0;
DatabaseObject root = new DatabaseObject();
root.Type = ResTree.RESTYPE_DB;
root.Name = this.DbName;
root.Style = this.DbStyle;
int nRet = CreateObject(root,
this.DbName,
out strError);
if (nRet == -1)
return -1;
this.Root = root;
return 0;
}
// 将树上全部对象以特定类型加入日志中
public void PutAllObjToLog(ObjEventOper oper,
DatabaseObject root)
{
ObjEvent objevent = new ObjEvent();
objevent.Obj = root;
objevent.Oper = oper;
objevent.Path = root.MakePath(this.DbName);
this.Log.Add(objevent);
if (oper == ObjEventOper.Delete
&& root.Type == ResTree.RESTYPE_FOLDER)
return; // 删除目录对象, 只要这个对象进入了日志, 其下级均不必再进入
// 递归
for (int i = 0; i < root.Children.Count; i++)
{
PutAllObjToLog(oper,
(DatabaseObject)root.Children[i]);
}
}
/*
// 将内存对象创建为真正的服务器端对象
public int BuildRealObjects(
string strDbName,
DatabaseObject root,
out string strError)
{
strError = "";
int nRet = 0;
// 创建根
if (root.Type != -1)
{
if (root.Type == ResTree.RESTYPE_DB)
goto DOCHILD; // 忽略本节点，但是继续作下级节点
// 缺省配置文件，忽略保存
if (root.IsDefaultFile() == true)
return 0;
MemoryStream stream = null;
if (root.Type == ResTree.RESTYPE_FILE)
stream = new MemoryStream(root.Content);
string strPath = root.MakePath(strDbName);
// 在服务器端创建对象
nRet = NewServerSideObject(strPath,
root.Type,
stream,
root.TimeStamp,
out strError);
if (nRet == -1)
return -1;
}
DOCHILD:
// 递归
for(int i=0;i<root.Children.Count;i++)
{
DatabaseObject obj = (DatabaseObject)root.Children[i];
nRet = BuildRealObjects(
strDbName,
obj,
out strError);
if (nRet == -1)
return -1;
}
return 0;
}
*/
// 根据路径创建内存对象
public int CreateObject(DatabaseObject obj,
string strPath,
out string strError)
{
strError = "";
obj.Children.Clear();
if (obj.Type == ResTree.RESTYPE_FILE)
{
byte[] baTimeStamp = null;
string strMetaData;
string strOutputPath;
this.channel = Channels.GetChannel(this.ServerUrl);
Debug.Assert(channel != null, "Channels.GetChannel() 异常");
// string strStyle = "attachment,data,timestamp,outputpath";
string strStyle = "content,data,timestamp,outputpath";
using (MemoryStream stream = new MemoryStream())
{
long lRet = channel.GetRes(strPath,
stream,
null, // stop,
strStyle,
null, // byte [] input_timestamp,
out strMetaData,
out baTimeStamp,
out strOutputPath,
out strError);
if (lRet == -1)
{
// obj.SetData(null);
obj.TimeStamp = null;
return 0; // 继续处理
}
obj.SetData(stream);
obj.TimeStamp = baTimeStamp;
}
}
if (obj.Type == ResTree.RESTYPE_DB
|| obj.Type == ResTree.RESTYPE_FOLDER)
{
this.channel = Channels.GetChannel(this.ServerUrl);
Debug.Assert(channel != null, "Channels.GetChannel() 异常");
ResInfoItem[] items = null;
DigitalPlatform.Stop stop = null;
if (stopManager != null)
{
stop = new DigitalPlatform.Stop();
stop.Register(this.stopManager, true); // 和容器关联
stop.OnStop += new StopEventHandler(this.DoStop);
stop.Initial("正在列目录: " + this.ServerUrl + "?" + strPath);
stop.BeginLoop();
}
long lRet = channel.DoDir(strPath,
this.Lang,
null, // 不需要返回全部语言的名字
out items,
out strError);
if (stopManager != null)
{
stop.EndLoop();
stop.OnStop -= new StopEventHandler(this.DoStop);
stop.Initial("");
stop.Unregister(); // 和容器关联
}
this.channel = null;
if (lRet == -1)
return -1;
if (items == null)
return 0;
for (int i = 0; i < items.Length; i++)
{
// 忽略from类型节点
if (items[i].Type == ResTree.RESTYPE_FROM)
continue;
DatabaseObject child = new DatabaseObject();
child.Name = items[i].Name;
child.Type = items[i].Type;
child.Style = items[i].Style;
child.Parent = obj;
obj.Children.Add(child);
int nRet = CreateObject(child,
strPath + "/" + items[i].Name,
out strError);
if (nRet == -1)
return -1;
}
}
return 0;
}
/*
// 把当前Real模式的对象全部构造为内存树
public int BuildMemoryTree(
TreeNode treenode,
out DatabaseObject root,
out string strError)
{
Debug.Assert(false, "废止");
root = null;
strError = "";
//if (this.StorageMode != StorageMode.Real)
//{
// strError = "必须在Real存储模式下调用函数BuildMemoryTree()";
// return -1;
//}
root = new DatabaseObject();
return BuildMemoryTree(
treenode,
root,
out strError);
}
*/
int BuildMemoryTree(
TreeNode parentTreeNode,
DatabaseObject parentDatabaseObject,
out string strError)
{
strError = "";
TreeNodeCollection children = null;
if (parentTreeNode == null)
{
children = this.Nodes;
}
else
{
children = parentTreeNode.Nodes;
}
//DatabaseObject newObj = null;
if (parentTreeNode != null) // 实根
{
TreeNode treenode = parentTreeNode;
parentDatabaseObject.Type = treenode.ImageIndex;
parentDatabaseObject.Name = treenode.Text;
if (treenode.ImageIndex == ResTree.RESTYPE_DB)
{
//newObj = parentDatabaseObject;
}
else if (treenode.ImageIndex == ResTree.RESTYPE_FOLDER)
{
/*
newObj = DatabaseObject.BuildDirObject(treenode.Text);
newObj.Type = treenode.ImageIndex;
newObj.Parent = parentDatabaseObject;
parentDatabaseObject.Children.Add(newObj);
*/
//newObj = parentDatabaseObject;
}
else if (treenode.ImageIndex == ResTree.RESTYPE_FILE)
{
this.channel = Channels.GetChannel(this.ServerUrl);
Debug.Assert(channel != null, "Channels.GetChannel() 异常");
string strPath = "";
byte[] baTimeStamp = null;
string strMetaData;
string strOutputPath;
strPath = this.GetPath(treenode);
// string strStyle = "attachment,data,timestamp,outputpath";
string strStyle = "content,data,timestamp,outputpath";
using (MemoryStream stream = new MemoryStream())
{
long lRet = channel.GetRes(strPath,
stream,
null, // stop,
strStyle,
null, // byte [] input_timestamp,
out strMetaData,
out baTimeStamp,
out strOutputPath,
out strError);
if (lRet == -1)
return -1;
parentDatabaseObject.SetData(stream);
parentDatabaseObject.TimeStamp = baTimeStamp;
}
return 0;
}
else
{
Debug.Assert(false, "意外的节点类型");
}
}
for (int i = 0; i < children.Count; i++)
{
TreeNode treenode = children[i];
DatabaseObject child = new DatabaseObject();
child.Parent = parentDatabaseObject;
parentDatabaseObject.Children.Add(child);
int nRet = BuildMemoryTree(
treenode,
child,
out strError);
if (nRet == -1)
return -1;
}
return 0;
}
public void SetRootObject(DatabaseObject root)
{
this.Nodes.Clear();
// 把以前树上的全部节点归纳为删除操作记入日志
PutAllObjToLog(ObjEventOper.Delete,
this.Root);
this.Root = root;
this.FillAll(null);
// 把现在树上全部节点作为新增记入日志
PutAllObjToLog(ObjEventOper.New,
this.Root);
}
