Start content type synchronisation from within a feature

The standard way to consume the content types from content type hub in your site collection. It is described for example here.  If you want  the content types available direct during creating of the site collection, this will not work for you. You try to start the Timer Job programmatically, but you will receive access denied exception. Because starting timer jobs is not allowed during feature activation. Here is a sample how you can consume content types immediately only for a specific site collection without permissions problems. However it includes a little bit of reflection.

using System;
using Microsoft.SharePoint;
using System.Reflection;

namespace NameSpace
{
public class ContentTypeSubscriber
{
public void Execute(SPSite site)
{
var taxonomyAssembly = Assembly.Load("Microsoft.SharePoint.Taxonomy, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c");
var subscriberType = taxonomyAssembly.GetType("Microsoft.SharePoint.Taxonomy.ContentTypeSync.Internal.Subscriber");

var processSiteMethodInfo = subscriberType.GetMethod("ProcessSite",
BindingFlags.NonPublic | BindingFlags.Instance,
null,
new[] { typeof(SPSite) },
null);

var subscriberTypeConstructor = subscriberType.GetConstructor(
BindingFlags.NonPublic | BindingFlags.Instance,
null, new Type[] { }, null
);

var subscriberInstance = subscriberTypeConstructor.Invoke(new object[] { });
processSiteMethodInfo.Invoke(subscriberInstance, new Object[] { site });
}
}
}

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Tags: Content Type Hub, SharePoint 2010