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CustomEntityLookup.cs
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CustomEntityLookup.cs
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// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT License. See LICENSE file in the project root for full license information.
using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using AzureCognitiveSearch.PowerSkills.Common;
using System.Linq;
using System.Globalization;
using System.Threading.Tasks;
using AzureCognitiveSearch.PowerSkills.Text.CustomEntityLookup.Models;
namespace AzureCognitiveSearch.PowerSkills.Text.CustomEntityLookup
{
/// <summary>
/// Based on sample custom skill provided in Azure Search. Given a user-defined list of entities,
/// this function will find all occurences of that entity in some input text.
/// </summary>
public static class CustomEntityLookup
{
// ** Some global variables used for configuration.**
// ** Change these values prior to deploying your function **
public static string EntityDefinitionLocation = "words.csv"; // other option is "words.json"
public static int DefaultFuzzyEditDistance = 0; // exact matches only by default
public static bool DefaultCaseSensitive = false; // case insensitive by default
public static bool DefaultAccentSensitive = false; // ignore differences in character accents by default
public static CustomEntityLookupImplementation _impl = null;
/// <summary>
/// Find instances of custom entities from either words.csv or words.json
/// in input text
/// </summary>
[FunctionName("custom-entity-lookup")]
public static async Task<IActionResult> RunCustomEntityLookup(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req,
ILogger log,
ExecutionContext executionContext)
{
log.LogInformation("Custom Entity Search function: C# HTTP trigger function processed a request.");
if (_impl == null || executionContext.FunctionName == "unitTestFunction")
{
_impl = new CustomEntityLookupImplementation(CustomEntitiesDefinition.ParseCustomEntityDefinition(EntityDefinitionLocation));
}
IEnumerable<WebApiRequestRecord> requestRecords = WebApiSkillHelpers.GetRequestRecords(req);
if (requestRecords == null)
{
return new BadRequestObjectResult($"{executionContext.FunctionName} - Invalid request record array.");
}
WebApiSkillResponse response = WebApiSkillHelpers.ProcessRequestRecords(executionContext.FunctionName, requestRecords,
(inRecord, outRecord) =>
{
if (!inRecord.Data.ContainsKey("text") || inRecord.Data["text"] == null)
{
outRecord.Errors.Add(new WebApiErrorWarningContract { Message = "Cannot process record without the given key 'text' with a string value" });
return outRecord;
}
string text = inRecord.Data["text"] as string;
var foundEntities = _impl.GetCustomLookupResult(text, System.Threading.CancellationToken.None);
outRecord.Data["entities"] = foundEntities;
return outRecord;
});
return new OkObjectResult(response);
}
}
}