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/*
* Copyright (c) Contributors, http://www.openmetaverse.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
namespace Nwc.XmlRpc
{
using System;
using System.Reflection;
/// <summary>
/// Simple tagging attribute to indicate participation is XML-RPC exposure.
/// </summary>
/// <remarks>
/// If present at the class level it indicates that this class does explicitly
/// expose methods. If present at the method level it denotes that the method
/// is exposed.
/// </remarks>
[AttributeUsage(
AttributeTargets.Class | AttributeTargets.Method,
AllowMultiple = false,
Inherited = true
)]
public class XmlRpcExposedAttribute : Attribute
{
/// <summary>Check if <paramref>obj</paramref> is an object utilizing the XML-RPC exposed Attribute.</summary>
/// <param name="obj"><c>Object</c> of a class or method to check for attribute.</param>
/// <returns><c>Boolean</c> true if attribute present.</returns>
public static Boolean ExposedObject(Object obj)
{
return IsExposed(obj.GetType());
}
/// <summary>Check if <paramref>obj</paramref>.<paramref>methodName</paramref> is an XML-RPC exposed method.</summary>
/// <remarks>A method is considered to be exposed if it exists and, either, the object does not use the XmlRpcExposed attribute,
/// or the object does use the XmlRpcExposed attribute and the method has the XmlRpcExposed attribute as well.</remarks>
/// <returns><c>Boolean</c> true if the method is exposed.</returns>
public static Boolean ExposedMethod(Object obj, String methodName)
{
Type type = obj.GetType();
MethodInfo method = type.GetMethod(methodName);
if (method == null)
throw new MissingMethodException("Method " + methodName + " not found.");
if (!IsExposed(type))
return true;
return IsExposed(method);
}
/// <summary>Check if <paramref>mi</paramref> is XML-RPC exposed.</summary>
/// <param name="mi"><c>MemberInfo</c> of a class or method to check for attribute.</param>
/// <returns><c>Boolean</c> true if attribute present.</returns>
public static Boolean IsExposed(MemberInfo mi)
{
foreach (Attribute attr in mi.GetCustomAttributes(true))
{
if (attr is XmlRpcExposedAttribute)
return true;
}
return false;
}
}
}
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