public void PairNodes(Node node1, Node node2)
{
try
{
XmlReaderSettings xmlReaderSettings = new XmlReaderSettings();
xmlReaderSettings.IgnoreWhitespace = true;
xmlReaderSettings.IgnoreComments = true;
//if (!File.Exists(XmlFilePath)) return;
var document = new XmlDocument();
document.Load(XmlFilePath);
var xmlElementList = document.GetElementsByTagName("NodePairs");
var newXmlElement = document.CreateElement("NodePair");
var firstNode = document.CreateElement("Node");
var secondNode = document.CreateElement("Node");
firstNode.SetAttribute("Id", node1.Id);
secondNode.SetAttribute("Id", node2.Id);
newXmlElement.AppendChild(firstNode);
newXmlElement.AppendChild(secondNode);
xmlElementList[0].AppendChild(newXmlElement);
document.Save(XmlFilePath);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
public IEnumerable<Node> GetPairedNodesOf(Node node)
{
var pairedNodeList = new List<Node>();
var document = new XmlDocument();
//if (!File.Exists(XmlFilePath)) return null;
document.Load(XmlFilePath);
var xmlNode = document.DocumentElement;
try
{
var xmlNodes = xmlNode.ChildNodes;
for (var i = 0; i < xmlNodes.Count; i++)
{
var currentXmlNode = xmlNodes[i];
var firstXmlNode = currentXmlNode.ChildNodes[0];
var secondXmlNode = currentXmlNode.ChildNodes[1];
if (firstXmlNode.Attributes["Id"].Value.Equals(node.Id))
{
pairedNodeList.Add(_nodeManager.GetNodeById(secondXmlNode.Attributes["Id"].Value));
}
else if (secondXmlNode.Attributes["Id"].Value.Equals(node.Id))
{
pairedNodeList.Add(_nodeManager.GetNodeById(firstXmlNode.Attributes["Id"].Value));
}
}
}
catch (Exception e) { Console.WriteLine(e.Message); }
return pairedNodeList;
}
private void SetUpMockNodeManager()
{
_mockNodeManager.Setup(m => m.GetNodeById(It.IsAny<string>()))
.Returns<string>(id =>
{
dynamic node = new Node(id, _nodeMetadata);
node.标题 = "Title for " + id;
return node;
});
}
private static INodeManager MockNodeManager()
{
var mockNodeManager = new Mock<INodeManager>();
var nodeMetadata =
new NodeMetadata("知识点", new[]
{
new NodePropertyMetadata("标题", typeof (string)),
new NodePropertyMetadata("内容", typeof (MsDoc))
});
mockNodeManager.Setup(m => m.GetNodeById(It.IsAny<string>()))
.Returns<string>(id =>
{
dynamic node = new Node(id, nodeMetadata);
node.标题 = "Title for " + id;
return node;
});
mockNodeManager.Setup(m => m.AddNode(It.IsAny<Node>()))
.Callback((Node node) => { Debug.WriteLine("Add Node"); });
mockNodeManager.Setup(m => m.UpdateNode(It.IsAny<Node>()))
.Callback((Node node) => { Debug.WriteLine("Update Node"); });
mockNodeManager.Setup(m => m.DeleteNode(It.IsAny<Node>()))
.Callback((Node node) => { Debug.WriteLine("Delete Node"); });
return mockNodeManager.Object;
}
/// <summary>
/// 给树节点增加子节点<paramref name="node"/>。
/// </summary>
public TreeNode AddChild(Node node)
{
var child = new TreeNode(node, this);
_children.Add(child);
return child;
}
public void Given_id_exist_should_delete_node_ok()
{
var nodeManager = new NodeManager("./root");
dynamic node = new Node("mmm", _nodeMetadata);
node.标题 = "标题";
node.内容 = new MsDoc { Content = "内容" };
nodeManager.AddNode(node);
Directory.Exists("./root/mmm").Should().BeTrue();
nodeManager.DeleteNode(node);
Directory.Exists("./root/mmm").Should().BeFalse();
}
public void DeleteNode(Node node)
{
var nodePath = Path.Combine(_rootPath, node.Id);
string[] fileList = Directory.GetFiles(nodePath);
//foreach (var file in fileList)
// File.Delete(file);
Directory.Delete(nodePath, true);
}
/// <summary>
/// 构造一个<see cref="TreeNode"/>，
/// 其对应节点为<paramref name="node"/>，父节点为<paramref name="parent"/>。
/// </summary>
public TreeNode(Node node, TreeNode parent = null)
{
_node = node;
Parent = parent;
}
public void AddNode(Node node)
{
var nodePath = Path.Combine(_rootPath, node.Id);
Directory.CreateDirectory(nodePath);
addOrUpdateNode(node, nodePath);
}
public void UpdateNode(Node node)
{
var nodePath = Path.Combine(_rootPath, node.Id);
addOrUpdateNode(node, nodePath);
}
/// <summary>
/// 复制<paramref name="node"/>的内容，
/// 并以<paramref name="id"/>为<see cref="Id"/>创建新节点。
/// </summary>
public Node(string id, Node node) : this(id, node.Metadata)
{
_properties = new List<NodeProperty>(_properties);
}
public Node GetNodeById(string id)
{
var nodePath = Path.Combine(_rootPath, id);
if (!Directory.Exists(nodePath))
return null;
var metaDataXmlFile = Path.Combine(nodePath, "metadata.xml");
var xmlReaderSettings = new XmlReaderSettings();
xmlReaderSettings.IgnoreWhitespace = true;
xmlReaderSettings.IgnoreComments = true;
// read metadata.xml
var xml2NodesMetadataConverter = new Xml2NodesMetadataConverter();
var nodeMetadata = xml2NodesMetadataConverter.Extract(metaDataXmlFile);
dynamic node = new Node(id, nodeMetadata);
//read data.xml
var dataXmlFile = Path.Combine(nodePath, "data.xml");
using (XmlReader xmlReader = XmlReader.Create(dataXmlFile, xmlReaderSettings))
{
bool visitNode = false;
while (xmlReader.Read())
{
if (!xmlReader.Name.Equals("Node") && visitNode)
{
if (xmlReader.HasAttributes)
{
var msdocXml = xmlReader["File"];
var fs = new FileStream(Path.Combine(nodePath, msdocXml), FileMode.Open, FileAccess.Read);
var sr = new StreamReader(fs, Encoding.UTF8);
var msdoc = new MsDoc();
msdoc.Content = sr.ReadToEnd();
node[xmlReader.Name]= msdoc;
sr.Close();
fs.Close();
}
else
{
Type type = NodeMetadataHelper.GetPropertyMetadata(node.Metadata, xmlReader.Name).Type;
if (type.Equals(typeof(int)))
{
node[xmlReader.Name] = Convert.ToInt32(xmlReader.ReadString());
}
else if (type.Equals(typeof(decimal)))
{
node[xmlReader.Name]= Convert.ToDecimal(xmlReader.ReadString());
}
else if (type.Equals(typeof(string)))
{
node[xmlReader.Name]= xmlReader.ReadString();
}
}
}
else if (xmlReader.Name.Equals("Node")) visitNode = true;
}
}
return node;
}
/// <summary>
/// 复制<paramref name="node"/>的内容。
/// 节点<see cref="Id"/>自动生成。
/// </summary>
public Node(Node node)
: this(Guid.NewGuid().ToString(), node)
{
}
public void Given_id_exist_should_update_node_ok()
{
var nodeManager = new NodeManager("./root");
dynamic node = new Node("xxx", _nodeMetadata);
node.标题 = "标题";
node.内容 = new MsDoc { Content = "内容" };
nodeManager.AddNode(node);
Directory.Exists("./root/xxx").Should().BeTrue();
node.标题 = "update标题";
node.内容 = new MsDoc{Content = "update"};
nodeManager.UpdateNode(node);
Directory.Exists("./root/xxx").Should().BeTrue();
var fs = new FileStream("./root/xxx/内容.xml", FileMode.Open, FileAccess.Read);
var sr = new StreamReader(fs);
var s = sr.ReadToEnd();
s.Should().Be("update");
fs.Close(); sr.Close();
nodeManager.DeleteNode(node);
}
public void AddChild(Node node)
{
AddChild(_treeNode.AddChild(node));
}
public NodeModifiedMessage(object sender, object target, Node node, NodeModifyType modifyType)
: base(sender, target)
{
_node = node;
_modifyType = modifyType;
}
public NodeModifiedMessage(Node node, NodeModifyType modifyType)
{
_node = node;
_modifyType = modifyType;
}
public void UnpairNodes(Node node1, Node node2)
{
try
{
var xmlReaderSettings = new XmlReaderSettings();
xmlReaderSettings.IgnoreWhitespace = true;
xmlReaderSettings.IgnoreComments = true;
//if (!File.Exists(XmlFilePath)) return;
var document = new XmlDocument();
document.Load(XmlFilePath);
var xmlElement = document.GetElementsByTagName("NodePairs");
var nodePairElementList = document.GetElementsByTagName("NodePair");
foreach (XmlElement nodePairElement in nodePairElementList)
{
if (nodePairElement.ChildNodes[0].Attributes["Id"].Value.Equals(node1.Id))
{
if (nodePairElement.ChildNodes[1].Attributes["Id"].Value.Equals(node2.Id))
{
xmlElement[0].RemoveChild(nodePairElement);
break;
}
}
if (nodePairElement.ChildNodes[0].Attributes["Id"].Value.Equals(node2.Id))
{
if (nodePairElement.ChildNodes[1].Attributes["Id"].Value.Equals(node1.Id))
{
xmlElement[0].RemoveChild(nodePairElement);
break;
}
}
}
document.Save(XmlFilePath);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
private void addOrUpdateNode(Node node, string nodePath)
{
var xmlWriterSettings = new XmlWriterSettings {OmitXmlDeclaration = false, Indent = true};
const string metaDataXml = "metadata.xml";
const string dataXml = "data.xml";
var metaDataXmlFile = Path.Combine(nodePath, metaDataXml);
var dataXmlFile = Path.Combine(nodePath, dataXml);
var nodePropertyMetadatas = node.Metadata.Properties;
var nodeProperties = node.Properties;
//write metadata.xml
var xw = XmlWriter.Create(metaDataXmlFile, xmlWriterSettings);
xw.WriteStartDocument();
xw.WriteStartElement("NodeMetadata");
xw.WriteAttributeString("Name", node.Metadata.Name);
foreach (var npm in nodePropertyMetadatas)
{
xw.WriteStartElement("NodeProperty");
xw.WriteAttributeString("Name", npm.Name);
if (npm.Type.Equals(typeof(int)))
{
xw.WriteAttributeString("Type", "int");
}
else if (npm.Type.Equals(typeof(decimal)))
{
xw.WriteAttributeString("Type", "decimal");
}
else if (npm.Type.Equals(typeof(string)))
{
xw.WriteAttributeString("Type", "string");
}
else if(npm.Type.Equals(typeof(MsDoc)))
{
xw.WriteAttributeString("Type", "msdoc");
}
xw.WriteEndElement();
}
xw.WriteEndElement();
xw.WriteEndDocument();
xw.Close();
//write data.xml
xw = XmlWriter.Create(dataXmlFile, xmlWriterSettings);
xw.WriteStartDocument();
xw.WriteStartElement("Node");
foreach (var nodeProperty in nodeProperties)
{
xw.WriteStartElement(nodeProperty.PropertyName);
if (nodeProperty.PropertyType == typeof(MsDoc))
{
xw.WriteAttributeString("File", nodeProperty.PropertyName + ".xml");
}
else
{
//xw.WriteStartElement(nodeProperty.PropertyName);
xw.WriteString(nodeProperty.Value.ToString());
//xw.WriteEndElement();
}
xw.WriteEndElement();
}
xw.WriteEndElement();
xw.WriteEndDocument();
xw.Close();
//write xml files of msdoc
foreach (var npm in nodeProperties.Where(p => p.PropertyType == typeof(MsDoc)))
{
var msDocXmlFile = Path.Combine(nodePath, npm.PropertyName + ".xml");
using (var fs = new FileStream(msDocXmlFile, FileMode.Create, FileAccess.ReadWrite))
using (var sw = new StreamWriter(fs, Encoding.UTF8))
if (npm.Value != null) sw.Write(((MsDoc) (npm.Value)).Content);
}
}