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// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
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using System.Globalization;
using System.Net;
using Org.Apache.REEF.Driver.Bridge;
using Org.Apache.REEF.Tang.Annotations;
using Org.Apache.REEF.Utilities;
using Org.Apache.REEF.Utilities.Logging;

namespace Org.Apache.REEF.Examples.AllHandlers
{
    /// <summary>
    /// A sample implementation of HttpHandler
    /// </summary>
    public class HelloHttpHandler : IHttpHandler
    {
        private static readonly Logger Logger = Logger.GetLogger(typeof(HelloHttpHandler));

        [Inject]
        private HelloHttpHandler()
        {           
        }

        public string GetSpecification()
        {
            return "NRT"; // Client Example 
        }

        /// <summary>
        /// Sample code after receiving http request and send back the http response
        /// </summary>
        /// <param name="request"></param>
        /// <param name="response"></param>
        public void OnHttpRequest(ReefHttpRequest request, ReefHttpResponse response)  
        {
            var msg = string.Format(CultureInfo.CurrentCulture, 
                "HelloHttpHandler OnHttpRequest: URL: {0}, QueryString: {1}, inputStream: {2}.", 
                request.Url, request.Querystring, ByteUtilities.ByteArraysToString(request.InputStream));
            Logger.Log(Level.Info, msg);
            response.Status = HttpStatusCode.OK;
            response.OutputStream =
                ByteUtilities.StringToByteArrays("Byte array returned from HelloHttpHandler in CLR!!!");
        }
    }
}