Page Comparison

using System;
using System.Collections.Generic;
using System.Linq;
using Hawksearch.Search;
using Telerik.Sitefinity.Services.Search.Data;
using Telerik.Sitefinity.Configuration;
using Telerik.Sitefinity.Services.Search.Model;
using Hawksearch.Configuration;
using Hawksearch.SDK.Indexing;

namespace SitefinityWebApp
{
    public class CustomSearchService : HawksearchService
    {
        private const string DocumentContentType = "Telerik.Sitefinity.Libraries.Model.Document";

        protected override List<SubmitDocument> AdaptDocuments(IEnumerable<IDocument> documents)
        {
            var doc = documents.ToList().FirstOrDefault();
            var documentList = new List<IDocument>(documents);

            if (doc != null)
            {
                var contentTypeField = doc.Fields.FirstOrDefault(f => f.Name == "ContentType");

                if (contentTypeField != null)
                {
                    if (string.Equals(contentTypeField.Value.ToString(), DocumentContentType, StringComparison.InvariantCultureIgnoreCase))
                    {
                        var configManager = ConfigManager.GetManager();
                        var hawkConfig = configManager.GetSection<HawkSearchConfig>();
                        documentList.Clear();

                        foreach (var document in documents)
                        {
                            var modifiedDocument = document;
                            var documentSize = this.CalculateDocumentSize(document);

                            if (documentSize > hawkConfig.DocumentSizeLimit)
                            {
                                modifiedDocument = this.ModifyDocument(document);
                            }

                            documentList.Add(modifiedDocument);
                        }
                    }
                }
            }

            return base.AdaptDocuments(documentList);
        }

        private double CalculateDocumentSize(IDocument document)
        {
            var documentSize = 0.0;

            foreach (var field in document.Fields)
            {
                if (field.Value != null)
                {
                    documentSize += System.Text.Encoding.Unicode.GetByteCount(field.Value.ToString()) / 1024.0;
                }
            }

            return documentSize;
        }

        private IDocument ModifyDocument(IDocument document)
        {
            var fields = new List<IField>(document.Fields);
            var contentField = document.Fields.FirstOrDefault(f => f.Name == "Content");

            if (contentField != null)
            {
                contentField.Value = string.Empty;
            }

            var modifiedDocument = new Document(fields, document.IdentityField.Name);

            return modifiedDocument;
        }
    }
}