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esiur-dotnet/Esiur/Resource/Template/ResourceTemplate.cs
2019-07-24 02:52:03 +03:00

361 lines
12 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
using Esiur.Misc;
using Esiur.Data;
using Esiur.Engine;
using System.Security.Cryptography;
using Esiur.Proxy;
namespace Esiur.Resource.Template
{
public class ResourceTemplate
{
Guid classId;
string className;
List<MemberTemplate> members = new List<MemberTemplate>();
List<FunctionTemplate> functions = new List<FunctionTemplate>();
List<EventTemplate> events = new List<EventTemplate>();
List<PropertyTemplate> properties = new List<PropertyTemplate>();
int version;
//bool isReady;
byte[] content;
public byte[] Content
{
get { return content; }
}
public MemberTemplate GetMemberTemplate(MemberInfo member)
{
if (member is MethodInfo)
return GetFunctionTemplate(member.Name);
else if (member is EventInfo)
return GetEventTemplate(member.Name);
else if (member is PropertyInfo)
return GetPropertyTemplate(member.Name);
else
return null;
}
public EventTemplate GetEventTemplate(string eventName)
{
foreach (var i in events)
if (i.Name == eventName)
return i;
return null;
}
public EventTemplate GetEventTemplate(byte index)
{
foreach (var i in events)
if (i.Index == index)
return i;
return null;
}
public FunctionTemplate GetFunctionTemplate(string functionName)
{
foreach (var i in functions)
if (i.Name == functionName)
return i;
return null;
}
public FunctionTemplate GetFunctionTemplate(byte index)
{
foreach (var i in functions)
if (i.Index == index)
return i;
return null;
}
public PropertyTemplate GetPropertyTemplate(byte index)
{
foreach (var i in properties)
if (i.Index == index)
return i;
return null;
}
public PropertyTemplate GetPropertyTemplate(string propertyName)
{
foreach (var i in properties)
if (i.Name == propertyName)
return i;
return null;
}
public Guid ClassId
{
get { return classId; }
}
public string ClassName
{
get { return className; }
}
public MemberTemplate[] Methods
{
get{return members.ToArray();}
}
public FunctionTemplate[] Functions
{
get { return functions.ToArray(); }
}
public EventTemplate[] Events
{
get { return events.ToArray(); }
}
public PropertyTemplate[] Properties
{
get { return properties.ToArray(); }
}
public ResourceTemplate()
{
}
public ResourceTemplate(Type type)
{
type = ResourceProxy.GetBaseType(type);
// set guid
var typeName = Encoding.UTF8.GetBytes(type.FullName);
var hash = SHA256.Create().ComputeHash(typeName).Clip(0, 16);
classId = new Guid(hash);
className = type.FullName;
#if NETSTANDARD1_5
PropertyInfo[] propsInfo = type.GetTypeInfo().GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
EventInfo[] eventsInfo = type.GetTypeInfo().GetEvents(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
MethodInfo[] methodsInfo = type.GetTypeInfo().GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
#else
PropertyInfo[] propsInfo = type.GetProperties(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
EventInfo[] eventsInfo = type.GetEvents(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
MethodInfo[] methodsInfo = type.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly);
#endif
//byte currentIndex = 0;
byte i = 0;
foreach (var pi in propsInfo)
{
var ps = (ResourceProperty[])pi.GetCustomAttributes(typeof(ResourceProperty), true);
if (ps.Length > 0)
{
var pt = new PropertyTemplate(this, i++, pi.Name, ps[0].ReadExpansion, ps[0].WriteExpansion, ps[0].Storage);
pt.Info = pi;
properties.Add(pt);
}
}
i = 0;
foreach (var ei in eventsInfo)
{
var es = (ResourceEvent[])ei.GetCustomAttributes(typeof(ResourceEvent), true);
if (es.Length > 0)
{
var et = new EventTemplate(this, i++, ei.Name, es[0].Expansion);
events.Add(et);
}
}
i = 0;
foreach (MethodInfo mi in methodsInfo)
{
var fs = (ResourceFunction[])mi.GetCustomAttributes(typeof(ResourceFunction), true);
if (fs.Length > 0)
{
var ft = new FunctionTemplate(this, i++, mi.Name, mi.ReturnType == typeof(void), fs[0].Expansion);
functions.Add(ft);
}
}
// append signals
for (i = 0; i < events.Count; i++)
members.Add(events[i]);
// append slots
for (i = 0; i < functions.Count; i++)
members.Add(functions[i]);
// append properties
for (i = 0; i < properties.Count; i++)
members.Add(properties[i]);
// bake it binarily
var b = new BinaryList();
b.Append(classId);
b.Append((byte)className.Length, className);
b.Append(version);
b.Append((ushort)members.Count);
foreach (var ft in functions)
b.Append(ft.Compose());
foreach (var pt in properties)
b.Append(pt.Compose());
foreach (var et in events)
b.Append(et.Compose());
content = b.ToArray();
}
public static ResourceTemplate Parse(byte[] data)
{
return Parse(data, 0, (uint)data.Length);
}
public static ResourceTemplate Parse(byte[] data, uint offset, uint contentLength)
{
uint ends = offset + contentLength;
uint oOffset = offset;
// start parsing...
var od = new ResourceTemplate();
od.content = data.Clip(offset, contentLength);
od.classId = data.GetGuid(offset);
offset += 16;
od.className = data.GetString(offset + 1, data[offset]);
offset += (uint)data[offset] + 1;
od.version = data.GetInt32(offset);
offset += 4;
ushort methodsCount = data.GetUInt16(offset);
offset += 2;
byte functionIndex = 0;
byte propertyIndex = 0;
byte eventIndex = 0;
for (int i = 0; i < methodsCount; i++)
{
var type = data[offset] >> 5;
if (type == 0) // function
{
string expansion = null;
var hasExpansion = ((data[offset] & 0x10) == 0x10);
var isVoid = ((data[offset++] & 0x08) == 0x08);
var name = data.GetString(offset + 1, data[offset]);
offset += (uint)data[offset] + 1;
if (hasExpansion) // expansion ?
{
var cs = data.GetUInt32(offset);
offset += 4;
expansion = data.GetString(offset, cs);
offset += cs;
}
var ft = new FunctionTemplate(od, functionIndex++, name, isVoid, expansion);
od.functions.Add(ft);
}
else if (type == 1) // property
{
string readExpansion = null, writeExpansion = null;
var hasReadExpansion = ((data[offset] & 0x8) == 0x8);
var hasWriteExpansion = ((data[offset] & 0x10) == 0x10);
var recordable = ((data[offset] & 1) == 1);
var permission = (PropertyTemplate.PropertyPermission)((data[offset++] >> 1) & 0x3);
var name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, data[offset]);
offset += (uint)data[offset] + 1;
if (hasReadExpansion) // expansion ?
{
var cs = data.GetUInt32(offset);
offset += 4;
readExpansion = data.GetString(offset, cs);
offset += cs;
}
if (hasWriteExpansion) // expansion ?
{
var cs = data.GetUInt32(offset);
offset += 4;
writeExpansion = data.GetString(offset, cs);
offset += cs;
}
var pt = new PropertyTemplate(od, propertyIndex++, name, readExpansion, writeExpansion, recordable ? StorageMode.Recordable : StorageMode.Volatile);
od.properties.Add(pt);
}
else if (type == 2) // Event
{
string expansion = null;
var hasExpansion = ((data[offset++] & 0x10) == 0x10);
var name = data.GetString(offset + 1, data[offset]);// Encoding.ASCII.GetString(data, (int)offset + 1, (int)data[offset]);
offset += (uint)data[offset] + 1;
if (hasExpansion) // expansion ?
{
var cs = data.GetUInt32(offset);
offset += 4;
expansion = data.GetString(offset, cs);
offset += cs;
}
var et = new EventTemplate(od, eventIndex++, name, expansion);
od.events.Add(et);
}
}
// append signals
for (int i = 0; i < od.events.Count; i++)
od.members.Add(od.events[i]);
// append slots
for (int i = 0; i < od.functions.Count; i++)
od.members.Add(od.functions[i]);
// append properties
for (int i = 0; i < od.properties.Count; i++)
od.members.Add(od.properties[i]);
//od.isReady = true;
/*
var oo = owner.Socket.Engine.GetObjectDescription(od.GUID);
if (oo != null)
{
Console.WriteLine("Already there ! description");
return oo;
}
else
{
owner.Socket.Engine.AddObjectDescription(od);
return od;
}
*/
return od;
}
}
}