public void Run()
{
string xml = @"
<People>
<Person Name=""Shay Friedman"" TwitterHandle=""@IronShay"" Blog=""http://IronShay.com"" />
<Person Name=""John Doe"" TwitterHandle=""@JohnDoe"" Blog=""http://Anonymous.com"" />
</People>
";
dynamic people = XElement.Parse(xml).ToElastic();
foreach (dynamic person in people["Person"])
{
Console.WriteLine("{0}, {1}, {2}", person.Name, person.TwitterHandle, person.Blog);
}
dynamic band = new ElasticObject("Band");
band.Name = "The Scropions";
dynamic song1 = band.Songs.Song();
song1.Name = "Winds of Change";
song1.Length = "5:12";
dynamic song2 = band.Songs.Song();
song2.Name = "Still Loving You";
song2.Length = "6:26";
XElement element = band > FormatType.Xml;
Console.WriteLine(element.ToString());
}
/// <summary>
/// Build an expando from an XElement
/// </summary>
/// <param name="el"></param>
/// <returns></returns>
public static ElasticObject ElasticFromXElement(XElement el)
{
var exp = new ElasticObject();
if (!string.IsNullOrEmpty(el.Value))
exp.InternalValue = el.Value;
exp.InternalName = el.Name.LocalName;
foreach (var a in el.Attributes())
exp.CreateOrGetAttribute(a.Name.LocalName, a.Value);
var textNode= el.Nodes().FirstOrDefault();
if (textNode is XText)
{
exp.InternalContent = textNode.ToString();
}
foreach (var c in el.Elements())
{
var child = ElasticFromXElement(c);
child.InternalParent = exp;
exp.AddElement(child);
}
return exp;
}
public void AddElement(ElasticObject element)
{
if (!elements.ContainsKey(element.InternalName))
{
elements[element.InternalName] = new List <ElasticObject>();
}
elements[element.InternalName].Add(element);
}
public void RemoveElement(ElasticObject element)
{
if (elements.ContainsKey(element.InternalName))
{
if (elements[element.InternalName].Contains(element))
{
elements[element.InternalName].Remove(element);
}
}
}
public void Check_Named_Parameters()
{
dynamic model = new ElasticObject();
var c1 = model.@class(new { name = "Class1" });
c1.property(new { name = "Property1", type = "string" });
c1.property(new { name = "Property2", type = "string" });
var c2 = model.@class(new { name = "Class2" });
c2.property(new { name = "Property1", type = "string" });
c2.property(new { name = "Property2", type = "string" });
Assert.AreEqual(model["class"].Count, 2);
Assert.AreEqual(model["class"][0]["property"].Count, 2);
}
public void Check_The_Element_And_Attributes_Can_Be_Added_Using_Operators()
{
dynamic myobj = new ElasticObject("MyObject");
var attrib1= (myobj << "element") < "attribute1";
attrib1 <<= "hello1";
var attrib2 = (myobj << "element") < "attribute1";
attrib2 <<= "hello2";
//first element
Assert.AreEqual(myobj[0].attribute1, "hello1");
//second element
Assert.AreEqual(myobj[1].attribute1, "hello2");
}
/// <summary>
/// Returns an XElement from an ElasticObject
/// </summary>
/// <param name="elastic"></param>
/// <returns></returns>
public static XElement XElementFromElastic(ElasticObject elastic)
{
var exp = new XElement(elastic.InternalName);
foreach (var a in elastic.Attributes)
{
if (a.Value.InternalValue != null)
exp.Add(new XAttribute(a.Key, a.Value.InternalValue));
}
if (null != elastic.InternalContent && elastic.InternalContent is string)
{
exp.Add(new XText(elastic.InternalContent as string));
}
foreach (var c in elastic.Elements)
{
var child = XElementFromElastic(c);
exp.Add(child);
}
return exp;
}
/// <summary>
/// Catch a get member invocation
/// </summary>
/// <param name="binder"></param>
/// <param name="result"></param>
/// <returns></returns>
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
if (elasticProvider.HasAttribute(binder.Name))
{
result = elasticProvider.Attribute(binder.Name).InternalValue;
}
else
{
var obj = elasticProvider.Element(binder.Name);
if (obj != null)
{
result = obj;
}
else
{
var exp = new ElasticObject(binder.Name, null);
elasticProvider.AddElement(exp);
result = exp;
}
}
return(true);
}
/// <summary>
/// Interpret a method call
/// </summary>
/// <param name="binder"></param>
/// <param name="args"></param>
/// <param name="result"></param>
/// <returns></returns>
public override bool TryInvokeMember(System.Dynamic.InvokeMemberBinder binder, object[] args, out object result)
{
var obj = new ElasticObject(binder.Name, null);
foreach (var a in args)
{
#if NETFX_CORE
foreach (var p in a.GetType().GetTypeInfo().DeclaredProperties)
{
AddAttribute(p.Name, p.GetValue(a, null));
}
#else
foreach (var p in a.GetType().GetProperties())
{
AddAttribute(p.Name, p.GetValue(a, null));
}
#endif
}
AddElement(obj);
result = obj;
return(true);
}
/// <summary>
/// Returns an XElement from an ElasticObject
/// </summary>
/// <param name="elastic"></param>
/// <param name="nameSpace"></param>
/// <returns></returns>
public static XElement XElementFromElastic(ElasticObject elastic, XNamespace nameSpace = null)
{
// we default to empty namespace
nameSpace = nameSpace ?? string.Empty;
var exp = new XElement(nameSpace + elastic.InternalName);
foreach (var a in elastic.Attributes)
{
if (a.Value.InternalValue != null)
{
// if we have xmlns attribute add it like XNamespace instead of regular attribute
if (a.Key.Equals("xmlns", StringComparison.OrdinalIgnoreCase))
{
nameSpace = a.Value.InternalValue.ToString();
exp.Name = nameSpace.GetName(exp.Name.LocalName);
}
else
{
exp.Add(new XAttribute(a.Key, a.Value.InternalValue));
}
}
}
if (null != elastic.InternalContent && elastic.InternalContent is string)
{
exp.Add(new XText(elastic.InternalContent as string));
}
foreach (var c in elastic.Elements)
{
// for child element add current XNamespace
var child = XElementFromElastic(c, nameSpace);
exp.Add(child);
}
return exp;
}
public void Check_Nested_Objects_Traversing()
{
dynamic model = new ElasticObject();
var c1 = model.@class();
c1.name = "Class1";
var p = c1.property();
p.name = "Property1";
p.type = "string";
p = c1.property();
p.name = "Property1";
p.type = "string";
var c2 = model.@class();
p = c2.property();
c2.name = "Class2";
p.name = "Property1";
p.type = "string";
p = c2.property();
p.name = "Property1";
p.type = "string";
Assert.AreEqual(model["class"].Count,2);
Assert.AreEqual(model["class"][0]["property"].Count,2);
}
public void Check_The_LeftShift_Operator_Can_Add_An_Element_By_Name()
{
dynamic myobj = new ElasticObject("MyObject");
for (int i = 0; i < 10; i++)
{
var newItem = myobj << "Item";
newItem.CountNumber = i;
}
Assert.AreEqual(10, myobj["Item"].Count);
}
public void Check_The_LessThan_Operator_Can_Add_An_Attribute_By_Name()
{
dynamic myobj = new ElasticObject("MyObject");
for (int i = 0; i < 10; i++)
{
var newItem = myobj < "Attrib" + i;
newItem <<= "somevalue";
}
//Few random checks
Assert.AreEqual(myobj.Attrib1, "somevalue");
Assert.AreEqual(myobj.Attrib8, "somevalue");
}
public void RemoveElement(ElasticObject element)
{
elasticProvider.RemoveElement(element);
}
/// <summary>
/// Interpret the invocation of a binary operation
/// </summary>
public override bool TryBinaryOperation(BinaryOperationBinder binder, object arg, out object result)
{
if (binder.Operation == ExpressionType.LeftShiftAssign && nodeType==NodeType.Element)
{
InternalContent = arg;
result = this;
return true;
}
else if (binder.Operation == ExpressionType.LeftShiftAssign && nodeType == NodeType.Attribute)
{
InternalValue = arg;
result = this;
return true;
}
else if (binder.Operation == ExpressionType.LeftShift)
{
if (arg is string)
{
var exp = new ElasticObject(arg as string, null) { nodeType = NodeType.Element };
AddElement(exp);
result = exp;
return true;
}
else if (arg is ElasticObject)
{
var eobj = arg as ElasticObject;
if (!Elements.Contains(eobj))
AddElement(eobj);
result = eobj;
return true;
}
}
else if (binder.Operation == ExpressionType.LessThan)
{
string memberName = arg as string;
if (arg is string)
{
if (!HasAttribute(memberName))
{
var att = new ElasticObject(memberName, null);
AddAttribute(memberName, att);
result = att;
return true;
}
else
{
throw new InvalidOperationException("An attribute with name" + memberName + " already exists");
}
}
else if (arg is ElasticObject)
{
var eobj = arg as ElasticObject;
AddAttribute(memberName, eobj);
result = eobj;
return true;
}
}
else if (binder.Operation == ExpressionType.GreaterThan)
{
if (arg is FormatType)
{
result = this.ToXElement();
return true;
}
}
return base.TryBinaryOperation(binder, arg, out result);
}
public void AddAttribute(string key, ElasticObject value)
{
value.nodeType = NodeType.Attribute;
value.InternalParent = this;
elasticProvider.AddAttribute(key, value);
}
public void AddElement(ElasticObject element)
{
element.nodeType = NodeType.Element;
element.InternalParent = this;
elasticProvider.AddElement(element);
}
/// <summary>
/// Interpret a method call
/// </summary>
/// <param name="binder"></param>
/// <param name="args"></param>
/// <param name="result"></param>
/// <returns></returns>
public override bool TryInvokeMember(System.Dynamic.InvokeMemberBinder binder, object[] args, out object result)
{
var obj = new ElasticObject(binder.Name,null);
foreach (var a in args)
{
#if NETFX_CORE
foreach(var p in a.GetType().GetTypeInfo().DeclaredProperties)
AddAttribute(p.Name,p.GetValue(a,null));
#else
foreach (var p in a.GetType().GetProperties())
AddAttribute(p.Name,p.GetValue(a,null));
#endif
}
AddElement(obj);
result = obj;
return true;
}
public void RemoveElement(ElasticObject element)
{
if (elements.ContainsKey(element.InternalName))
{
if (elements[element.InternalName].Contains(element))
elements[element.InternalName].Remove(element);
}
}
public void AddAttribute(string key, ElasticObject value)
{
attributes.Add(key, value);
}
public void Check_The_Object_Indexer_Can_Accept_Integers()
{
dynamic myobj = new ElasticObject("MyObject");
for (int i = 0; i < 10; i++)
{
var newItem = myobj << "Item";
newItem.CountNumber = i;
}
//Check the 3rd and 9th items
Assert.AreEqual(3, myobj[3].CountNumber);
Assert.AreEqual(9, myobj[9].CountNumber);
}
public void AddAttribute(string key, ElasticObject value)
{
attributes.Add(key, value);
}
public void AddElement(ElasticObject element)
{
if (!elements.ContainsKey(element.InternalName))
{
elements[element.InternalName] = new List<ElasticObject>();
}
elements[element.InternalName].Add(element);
}
public void RemoveElement(ElasticObject element)
{
elasticProvider.RemoveElement(element);
}
/// <summary>
/// A private helper method
/// </summary>
/// <returns></returns>
private dynamic CreateStoreObject()
{
dynamic store = new ElasticObject("Store");
store.Name = "Acme Store";
store.Location.Address = "West Avenue, Heaven Street Road, LA";
store.Products.Count = 2;
store.Owner.FirstName = "Jack";
store.Owner.SecondName = "Jack";
//try to set the internal content for an element
store.Owner <<= "this is some internal content for owner";
//Add a new product
var p1 = store.Products.Product();
p1.Name = "Acme Floor Cleaner";
p1.Price = 20;
//Add another product
var p2 = store.Products.Product();
p2.Name = "Acme Bun";
p2.Price = 22;
return store;
}
public void AddElement(ElasticObject element)
{
element.nodeType = NodeType.Element;
element.InternalParent = this;
elasticProvider.AddElement(element);
}
/// <summary>
/// Interpret the invocation of a binary operation
/// </summary>
public override bool TryBinaryOperation(BinaryOperationBinder binder, object arg, out object result)
{
if (binder.Operation == ExpressionType.LeftShiftAssign && nodeType == NodeType.Element)
{
InternalContent = arg;
result = this;
return(true);
}
else if (binder.Operation == ExpressionType.LeftShiftAssign && nodeType == NodeType.Attribute)
{
InternalValue = arg;
result = this;
return(true);
}
else if (binder.Operation == ExpressionType.LeftShift)
{
if (arg is string)
{
var exp = new ElasticObject(arg as string, null)
{
nodeType = NodeType.Element
};
AddElement(exp);
result = exp;
return(true);
}
else if (arg is ElasticObject)
{
var eobj = arg as ElasticObject;
if (!Elements.Contains(eobj))
{
AddElement(eobj);
}
result = eobj;
return(true);
}
}
else if (binder.Operation == ExpressionType.LessThan)
{
string memberName = arg as string;
if (arg is string)
{
if (!HasAttribute(memberName))
{
var att = new ElasticObject(memberName, null);
AddAttribute(memberName, att);
result = att;
return(true);
}
else
{
throw new InvalidOperationException("An attribute with name" + memberName + " already exists");
}
}
else if (arg is ElasticObject)
{
var eobj = arg as ElasticObject;
AddAttribute(memberName, eobj);
result = eobj;
return(true);
}
}
else if (binder.Operation == ExpressionType.GreaterThan)
{
if (arg is FormatType)
{
result = this.ToXElement();
return(true);
}
}
return(base.TryBinaryOperation(binder, arg, out result));
}
/// <summary>
/// Catch a get member invocation
/// </summary>
/// <param name="binder"></param>
/// <param name="result"></param>
/// <returns></returns>
public override bool TryGetMember(GetMemberBinder binder, out object result)
{
if (elasticProvider.HasAttribute(binder.Name))
{
result = elasticProvider.Attribute(binder.Name).InternalValue;
}
else
{
var obj = elasticProvider.Element(binder.Name);
if (obj != null)
{
result = obj;
}
else
{
var exp = new ElasticObject(binder.Name,null);
elasticProvider.AddElement(exp);
result = exp;
}
}
return true;
}
public void Check_The_Indexer_Take_A_Delegate()
{
dynamic myobj = new ElasticObject("MyObject");
for (int i = 0; i < 10; i++)
{
var newItem = myobj << "Item";
newItem.CountNumber = i;
}
var filter=new Func<dynamic,bool>((obj)=>obj.CountNumber>5);
var result = myobj[filter];
//4 items remains above 5
Assert.AreEqual(4, result.Count);
}
public void AddAttribute(string key, ElasticObject value)
{
value.nodeType = NodeType.Attribute;
value.InternalParent = this;
elasticProvider.AddAttribute(key, value);
}
