/// <summary>
/// Converts an IJavaScriptObject into an NET object.
/// </summary>
/// <param name="o">The IJavaScriptObject object to convert.</param>
/// <param name="t"></param>
/// <returns>Returns a .NET object.</returns>
public override object Deserialize(IJavaScriptObject o, Type t)
{
JavaScriptObject jso = o as JavaScriptObject;
if (!typeof(NameValueCollection).IsAssignableFrom(t) || jso == null)
{
throw new NotSupportedException();
}
NameValueCollection list = (NameValueCollection)Activator.CreateInstance(t);
if (!jso.ContainsKey("keys") || !jso.ContainsKey("values"))
{
throw new ArgumentException("Missing values for 'keys' and 'values'.");
}
JavaScriptArray keys = (JavaScriptArray)jso["keys"];
JavaScriptArray values = (JavaScriptArray)jso["values"];
if (keys.Count != values.Count)
{
throw new IndexOutOfRangeException("'keys' and 'values' have different length.");
}
for (int i = 0; i < keys.Count; i++)
{
list.Add(keys[i].ToString(), values[i].ToString());
}
return(list);
}
/// <summary>
/// Converts an IJavaScriptObject into an NET object.
/// </summary>
/// <param name="o">The IJavaScriptObject object to convert.</param>
/// <param name="t"></param>
/// <returns>Returns a .NET object.</returns>
public override object Deserialize(IJavaScriptObject o, Type t)
{
JavaScriptObject ht = o as JavaScriptObject;
if (ht == null)
{
throw new NotSupportedException();
}
if (!ht.ContainsKey("tables") || !(ht["tables"] is JavaScriptArray))
{
throw new NotSupportedException();
}
JavaScriptArray tables = (JavaScriptArray)ht["tables"];
DataSet ds = new DataSet();
DataTable dt = null;
foreach (IJavaScriptObject table in tables)
{
dt = (DataTable)JavaScriptDeserializer.Deserialize(table, typeof(DataTable));
if (dt != null)
{
ds.Tables.Add(dt);
}
}
return(ds);
}
/// <summary>
/// Converts an IJavaScriptObject into an NET object.
/// </summary>
/// <param name="o">The IJavaScriptObject object to convert.</param>
/// <param name="t"></param>
/// <returns>Returns a .NET object.</returns>
public override object Deserialize(IJavaScriptObject o, Type t)
{
JavaScriptObject ht = o as JavaScriptObject;
if (ht == null)
{
throw new NotSupportedException();
}
IDictionary d = (IDictionary)Activator.CreateInstance(t);
ParameterInfo[] p = t.GetMethod("Add").GetParameters();
Type kT = p[0].ParameterType;
Type vT = p[1].ParameterType;
if (ht.ContainsKey("keys") && ht.ContainsKey("values"))
{
object key;
object value;
JavaScriptArray keys = ht["keys"] as JavaScriptArray;
JavaScriptArray values = ht["values"] as JavaScriptArray;
for (int i = 0; i < keys.Count && i < values.Count; i++)
{
key = JavaScriptDeserializer.Deserialize(keys[i], kT);
value = JavaScriptDeserializer.Deserialize(values[i], vT);
d.Add(key, value);
}
}
else if (kT == typeof(string))
{
foreach (string key in ht.Keys)
{
object value = JavaScriptDeserializer.Deserialize(ht[key], vT);
d.Add(key, value);
}
}
else
{
throw new NotSupportedException();
}
return(d);
}
/// <summary>
/// Deserializes the custom object.
/// </summary>
/// <param name="o">The o.</param>
/// <param name="type">The type.</param>
/// <returns></returns>
internal static object DeserializeCustomObject(JavaScriptObject o, Type type)
{
object c = Activator.CreateInstance(type);
// TODO: is this a security problem?
// if(o.GetType().GetCustomAttributes(typeof(AjaxClassAttribute), true).Length == 0)
// throw new System.Security.SecurityException("Could not create class '" + type.FullName + "' because of missing AjaxClass attribute.");
MemberInfo[] members = type.GetMembers(BindingFlags.GetField | BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance);
foreach (MemberInfo memberInfo in members)
{
if (memberInfo.MemberType == MemberTypes.Field)
{
if (o.ContainsKey(memberInfo.Name))
{
FieldInfo fieldInfo = (FieldInfo)memberInfo;
fieldInfo.SetValue(c, JavaScriptDeserializer.Deserialize((IJavaScriptObject)o[fieldInfo.Name], fieldInfo.FieldType));
}
}
else if (memberInfo.MemberType == MemberTypes.Property)
{
if (o.ContainsKey(memberInfo.Name))
{
PropertyInfo propertyInfo = (PropertyInfo)memberInfo;
if (propertyInfo.CanWrite)
{
propertyInfo.SetValue(c, JavaScriptDeserializer.Deserialize((IJavaScriptObject)o[propertyInfo.Name], propertyInfo.PropertyType), new object[0]);
}
}
}
}
return(c);
}
/// <summary>
/// Retreives the parameters.
/// </summary>
/// <returns></returns>
public override object[] RetreiveParameters()
{
context.Request.ContentEncoding = System.Text.UTF8Encoding.UTF8;
ParameterInfo[] pi = method.GetParameters();
object[] args = new object[pi.Length];
// initialize default values
for (int i = 0; i < pi.Length; i++)
{
args[i] = pi[i].DefaultValue;
}
byte[] b = new byte[context.Request.InputStream.Length];
if (context.Request.InputStream.Read(b, 0, b.Length) == 0)
{
return(null);
}
StreamReader sr = new StreamReader(new MemoryStream(b), System.Text.UTF8Encoding.UTF8);
string v = null;
try
{
v = sr.ReadToEnd();
}
finally
{
sr.Close();
}
// If something went wrong or there are no arguments
// we can return with the empty argument array.
if (v == null || pi.Length == 0 || v == "{}")
{
return(args);
}
hashCode = v.GetHashCode();
// check if we have to decrypt the JSON string.
if (Utility.Settings != null && Utility.Settings.Security != null)
{
v = Utility.Settings.Security.SecurityProvider.Decrypt(v);
}
context.Items.Add(Constant.AjaxID + ".JSON", v);
JavaScriptObject jso = (JavaScriptObject)JavaScriptDeserializer.DeserializeFromJson(v, typeof(JavaScriptObject));
for (int i = 0; i < pi.Length; i++)
{
if (jso.ContainsKey(pi[i].Name))
{
//if(pi[i].ParameterType.IsAssignableFrom(jso[pi[i].Name].GetType()))
//{
// args[i] = jso[pi[i].Name];
//}
//else
{
args[i] = JavaScriptDeserializer.Deserialize((IJavaScriptObject)jso[pi[i].Name], pi[i].ParameterType);
}
}
}
return(args);
}
/// <summary>
/// Converts an IJavaScriptObject into an NET object.
/// </summary>
/// <param name="o">The IJavaScriptObject object to convert.</param>
/// <param name="type">The type to convert the object to.</param>
/// <returns>Returns a .NET object.</returns>
public static object Deserialize(IJavaScriptObject o, Type type)
{
if (o == null)
{
return(null);
}
// If the IJavaScriptObject is an JavaScriptObject and we have a key
// __type we will override the Type that is passed to this method. This
// will allow us to use implemented classes where the method will use
// only the interface.
JavaScriptObject jso = o as JavaScriptObject;
if (jso != null && jso.ContainsKey("__type"))
{
Type t = Type.GetType(jso["__type"].ToString());
if (type == null || type.IsAssignableFrom(t))
{
type = t;
}
}
JavaScriptConverter c = null;
#if (NET20)
if (Utility.Settings.DeserializableConverters.TryGetValue(type, out c))
{
#else
if (Utility.Settings.DeserializableConverters.ContainsKey(type))
{
c = (IJavaScriptConverter)Utility.Settings.DeserializableConverters[type];
#endif
return(c.Deserialize(o, type));
}
object v;
#if (NET20)
foreach (JavaScriptConverter c2 in Utility.Settings.DeserializableConverters.Values)
{
if (c2.TryDeserializeValue(o, type, out v))
{
return(v);
}
}
#else
IEnumerator m = Utility.Settings.DeserializableConverters.Values.GetEnumerator();
while (m.MoveNext())
{
if (((IJavaScriptConverter)m.Current).TryDeserializeValue(o, type, out v))
{
return(v);
}
}
#endif
#if (NET20)
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
//Type n = typeof(Nullable<>);
//Type constructed = n.MakeGenericType(type.GetGenericArguments()[0]);
object val = null;
Type tval = type.GetGenericArguments()[0];
string tmp = o.ToString();
if (string.IsNullOrEmpty(tmp) || tmp == "null")
{
return(null);
}
object va = Deserialize(o, tval);
val = Convert.ChangeType(va, tval);
return(Activator.CreateInstance(type, val));
}
#endif
if (typeof(IJavaScriptObject).IsAssignableFrom(type))
{
return(o);
}
if (o is JavaScriptObject)
{
return(DeserializeCustomObject(o as JavaScriptObject, type));
}
throw new NotImplementedException("The object of type '" + o.GetType().FullName + "' could not converted to type '" + type + "'.");
}
/// <summary>
/// Converts an XML document to an IJavaScriptObject (JSON).
/// <see cref="http://www.xml.com/pub/a/2006/05/31/converting-between-xml-and-json.html?page=1">Stefan Goessner</see>
/// <see cref="http://developer.yahoo.com/common/json.html#xml">Yahoo XML JSON</see>
/// </summary>
/// <param name="n">The XmlNode to serialize to JSON.</param>
/// <returns>A IJavaScriptObject.</returns>
public static IJavaScriptObject GetIJavaScriptObjectFromXmlNode(XmlNode n)
{
if (n == null)
{
return(null);
}
//if (xpath == "" || xpath == "/")
// xpath = n.Name;
System.Text.RegularExpressions.Regex r = new System.Text.RegularExpressions.Regex(@"\w+|\W+", System.Text.RegularExpressions.RegexOptions.Compiled);
JavaScriptObject o = new JavaScriptObject();
if (n.NodeType == XmlNodeType.Element)
{
for (int i = 0; i < n.Attributes.Count; i++)
{
o.Add("@" + n.Attributes[i].Name, n.Attributes[i].Value);
}
if (n.FirstChild != null) // element has child nodes
{
int textChild = 0;
bool hasElementChild = false;
for (XmlNode e = n.FirstChild; e != null; e = e.NextSibling)
{
if (e.NodeType == XmlNodeType.Element)
{
hasElementChild = true;
}
if (e.NodeType == XmlNodeType.Text && r.IsMatch(e.InnerText))
{
textChild++; // non-whitespace text
}
}
if (hasElementChild)
{
if (textChild < 2) // structured element with evtl. a single text node
{
for (XmlNode e = n.FirstChild; e != null; e = e.NextSibling)
{
if (e.NodeType == XmlNodeType.Text)
{
o.Add("#text", e.InnerText);
}
else if (o.ContainsKey(e.Name))
{
if (o[e.Name] is JavaScriptArray)
{
((JavaScriptArray)o[e.Name]).Add(GetIJavaScriptObjectFromXmlNode(e));
}
else
{
IJavaScriptObject _o = o[e.Name];
JavaScriptArray a = new JavaScriptArray();
a.Add(_o);
a.Add(GetIJavaScriptObjectFromXmlNode(e));
o[e.Name] = a;
}
}
else
{
o.AddInternal(e.Name, GetIJavaScriptObjectFromXmlNode(e));
}
}
}
}
else if (textChild > 0)
{
if (n.Attributes.Count == 0)
{
return(new JavaScriptString(n.InnerText));
}
else
{
o.Add("#text", n.InnerText);
}
}
}
if (n.Attributes.Count == 0 && n.FirstChild == null)
{
return(new JavaScriptString(n.InnerText));
}
}
else if (n.NodeType == XmlNodeType.Document)
{
return(GetIJavaScriptObjectFromXmlNode(((XmlDocument)n).DocumentElement));
}
else
{
throw new NotSupportedException("Unhandled node type '" + n.NodeType + "'.");
}
return(o);
}
/// <summary>
/// Converts an IJavaScriptObject into an NET object.
/// </summary>
/// <param name="o">The IJavaScriptObject object to convert.</param>
/// <param name="t"></param>
/// <returns>Returns a .NET object.</returns>
public override object Deserialize(IJavaScriptObject o, Type t)
{
JavaScriptObject ht = o as JavaScriptObject;
if (ht == null)
{
throw new NotSupportedException();
}
if (!ht.ContainsKey("columns") || !(ht["columns"] is JavaScriptArray) ||
!ht.ContainsKey("columnTypes") || !(ht["columnTypes"] is JavaScriptArray) ||
!ht.ContainsKey("rows") || !(ht["rows"] is JavaScriptArray))
{
throw new NotSupportedException();
}
JavaScriptArray columns = (JavaScriptArray)ht["columns"];
JavaScriptArray columnTypes = (JavaScriptArray)ht["columnTypes"];
JavaScriptArray rows = (JavaScriptArray)ht["rows"];
if (columns.Count != columnTypes.Count)
{
throw new NotSupportedException();
}
DataTable dt = new DataTable();
DataRow row = null;
Type colType;
JavaScriptString columnName;
JavaScriptString columnType;
if (ht.ContainsKey("name") && ht["name"] is JavaScriptString)
{
dt.TableName = ht["name"].ToString();
}
for (int i = 0; i < columns.Count; i++)
{
columnName = (JavaScriptString)columns[i];
columnType = (JavaScriptString)columnTypes[i];
colType = Type.GetType(columnType, true);
dt.Columns.Add(columnName, colType);
}
JavaScriptArray cols = null;
object obj;
for (int y = 0; y < rows.Count; y++)
{
// if(!(r is JavaScriptArray))
// continue;
cols = (JavaScriptArray)rows[y];
row = dt.NewRow();
for (int i = 0; i < cols.Count; i++)
{
//row[i] = JavaScriptDeserializer.Deserialize((IJavaScriptObject)cols[i], dt.Columns[i].DataType);
obj = JavaScriptDeserializer.Deserialize((IJavaScriptObject)cols[i], dt.Columns[i].DataType);
row[i] = (obj == null) ? DBNull.Value : obj;
}
dt.Rows.Add(row);
}
return(dt);
}