/
ConfigurationBuilderExtensions.cs
85 lines (65 loc) · 2.94 KB
/
ConfigurationBuilderExtensions.cs
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namespace Ocelot.DependencyInjection
{
using Configuration.File;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Configuration.Memory;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
public static class ConfigurationBuilderExtensions
{
[Obsolete("Please set BaseUrl in ocelot.json GlobalConfiguration.BaseUrl")]
public static IConfigurationBuilder AddOcelotBaseUrl(this IConfigurationBuilder builder, string baseUrl)
{
var memorySource = new MemoryConfigurationSource
{
InitialData = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>("BaseUrl", baseUrl)
}
};
builder.Add(memorySource);
return builder;
}
public static IConfigurationBuilder AddOcelot(this IConfigurationBuilder builder, IHostingEnvironment env)
{
return builder.AddOcelot(".", env);
}
public static IConfigurationBuilder AddOcelot(this IConfigurationBuilder builder, string folder, IHostingEnvironment env)
{
const string primaryConfigFile = "ocelot.json";
const string globalConfigFile = "ocelot.global.json";
const string subConfigPattern = @"^ocelot\.[a-zA-Z0-9]+\.json$";
string excludeConfigName = env?.EnvironmentName != null ? $"ocelot.{env.EnvironmentName}.json" : string.Empty;
var reg = new Regex(subConfigPattern, RegexOptions.IgnoreCase | RegexOptions.Singleline);
var files = new DirectoryInfo(folder)
.EnumerateFiles()
.Where(fi => reg.IsMatch(fi.Name) && (fi.Name != excludeConfigName))
.ToList();
var fileConfiguration = new FileConfiguration();
foreach (var file in files)
{
if (files.Count > 1 && file.Name.Equals(primaryConfigFile, StringComparison.OrdinalIgnoreCase))
{
continue;
}
var lines = File.ReadAllText(file.FullName);
var config = JsonConvert.DeserializeObject<FileConfiguration>(lines);
if (file.Name.Equals(globalConfigFile, StringComparison.OrdinalIgnoreCase))
{
fileConfiguration.GlobalConfiguration = config.GlobalConfiguration;
}
fileConfiguration.Aggregates.AddRange(config.Aggregates);
fileConfiguration.ReRoutes.AddRange(config.ReRoutes);
}
var json = JsonConvert.SerializeObject(fileConfiguration);
File.WriteAllText(primaryConfigFile, json);
builder.AddJsonFile(primaryConfigFile, false, false);
return builder;
}
}
}