// ----------------------------------------------------------------------------------
// Microsoft Developer & Platform Evangelism
// 
// Copyright (c) Microsoft Corporation. All rights reserved.
// 
// THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, 
// EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES 
// OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
// ----------------------------------------------------------------------------------
// The example companies, organizations, products, domain names,
// e-mail addresses, logos, people, places, and events depicted
// herein are fictitious.  No association with any real company,
// organization, product, domain name, email address, logo, person,
// places, or events is intended or should be inferred.
// ----------------------------------------------------------------------------------

using System.Linq;
using Microsoft.WindowsAzure.Diagnostics;
using Microsoft.WindowsAzure.ServiceRuntime;

namespace GuestBook_WebRole
{
    public class WebRole : RoleEntryPoint
    {
        public override bool OnStart()
        {
            DiagnosticMonitor.Start("DiagnosticsConnectionString");

            // Restart the role upon all configuration changes
            // Note: To customize the handling of configuration changes, 
            // remove this line and register custom event handlers instead.
            // See the MSDN topic on “Managing Configuration Changes” for further details 
            // (http://go.microsoft.com/fwlink/?LinkId=166357).
            RoleEnvironment.Changing += RoleEnvironmentChanging;

            Microsoft.WindowsAzure.CloudStorageAccount.SetConfigurationSettingPublisher((configName, configSetter) =>
            {
                configSetter(Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.GetConfigurationSettingValue(configName));
            });

            return base.OnStart();
        }

        private void RoleEnvironmentChanging(object sender, RoleEnvironmentChangingEventArgs e)
        {
            if (e.Changes.Any(change => change is RoleEnvironmentConfigurationSettingChange))
                e.Cancel = true;
        }
    }
}