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Created a configurable memory cache

This commit is contained in:
Kiran Challa 2016-03-29 14:38:23 -07:00
parent 73e341e543
commit 6435591d1c
8 changed files with 96 additions and 37 deletions
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19
src/MusicStore/Areas/Admin/Controllers/StoreManagerController.cs
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@ -8,6 +8,7 @@ using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Options;
using MusicStore.Models;
using MusicStore.ViewModels;
@ -17,9 +18,12 @@ namespace MusicStore.Areas.Admin.Controllers
[Authorize("ManageStore")]
public class StoreManagerController : Controller
{
public StoreManagerController(MusicStoreContext dbContext)
private readonly AppSettings _appSettings;
public StoreManagerController(MusicStoreContext dbContext, IOptions<AppSettings> options)
{
DbContext = dbContext;
_appSettings = options.Value;
}
public MusicStoreContext DbContext { get; }
@ -55,11 +59,14 @@ namespace MusicStore.Areas.Admin.Controllers
if (album != null)
{
//Remove it from cache if not retrieved in last 10 minutes.
cache.Set(
cacheKey,
album,
new MemoryCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(10)));
if (_appSettings.CacheDbResults)
{
//Remove it from cache if not retrieved in last 10 minutes.
cache.Set(
cacheKey,
album,
new MemoryCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(10)));
}
}
}

22
src/MusicStore/Controllers/HomeController.cs
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@ -5,12 +5,19 @@ using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Options;
using MusicStore.Models;
namespace MusicStore.Controllers
{
public class HomeController : Controller
{
private readonly AppSettings _appSettings;
public HomeController(IOptions<AppSettings> options)
{
_appSettings = options.Value;
}
//
// GET: /Home/
public async Task<IActionResult> Index(
@ -26,14 +33,17 @@ namespace MusicStore.Controllers
if (albums != null && albums.Count > 0)
{
// Refresh it every 10 minutes.
// Let this be the last item to be removed by cache if cache GC kicks in.
cache.Set(
cacheKey,
albums,
new MemoryCacheEntryOptions()
if (_appSettings.CacheDbResults)
{
// Refresh it every 10 minutes.
// Let this be the last item to be removed by cache if cache GC kicks in.
cache.Set(
cacheKey,
albums,
new MemoryCacheEntryOptions()
.SetAbsoluteExpiration(TimeSpan.FromMinutes(10))
.SetPriority(CacheItemPriority.High));
}
}
}

19
src/MusicStore/Controllers/StoreController.cs
View File

@ -4,15 +4,19 @@ using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Options;
using MusicStore.Models;
namespace MusicStore.Controllers
{
public class StoreController : Controller
{
public StoreController(MusicStoreContext dbContext)
private readonly AppSettings _appSettings;
public StoreController(MusicStoreContext dbContext, IOptions<AppSettings> options)
{
DbContext = dbContext;
_appSettings = options.Value;
}
public MusicStoreContext DbContext { get; }
@ -60,11 +64,14 @@ namespace MusicStore.Controllers
if (album != null)
{
//Remove it from cache if not retrieved in last 10 minutes
cache.Set(
cacheKey,
album,
new MemoryCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(10)));
if (_appSettings.CacheDbResults)
{
//Remove it from cache if not retrieved in last 10 minutes
cache.Set(
cacheKey,
album,
new MemoryCacheEntryOptions().SetSlidingExpiration(TimeSpan.FromMinutes(10)));
}
}
}

2
src/MusicStore/Properties/AppSettings.cs
View File

@ -3,5 +3,7 @@
public class AppSettings
{
public string SiteTitle { get; set; }
public bool CacheDbResults { get; set; } = true;
}
}

23
src/MusicStore/config.json
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@ -1,14 +1,15 @@
{
"AppSettings": {
"SiteTitle": "ASP.NET MVC Music Store"
},
"DefaultAdminUsername": "Administrator@test.com",
"DefaultAdminPassword": "YouShouldChangeThisPassword1!",
"Data": {
"DefaultConnection": {
// Use a shared (and running) LocalDB database when executing in IIS e.g.
// "Server=(localdb)\\.\\IIS_DB;Database=MusicStore;Trusted_Connection=False;MultipleActiveResultSets=true;User ID=iis_login;Password=********"
"ConnectionString": "Server=(localdb)\\MSSQLLocalDB;Database=MusicStore;Trusted_Connection=True;MultipleActiveResultSets=true;Connect Timeout=30;"
}
"AppSettings": {
"SiteTitle": "ASP.NET MVC Music Store",
"CacheDbResults": true
},
"DefaultAdminUsername": "Administrator@test.com",
"DefaultAdminPassword": "YouShouldChangeThisPassword1!",
"Data": {
"DefaultConnection": {
// Use a shared (and running) LocalDB database when executing in IIS e.g.
// "Server=(localdb)\\.\\IIS_DB;Database=MusicStore;Trusted_Connection=False;MultipleActiveResultSets=true;User ID=iis_login;Password=********"
"ConnectionString": "Server=(localdb)\\MSSQLLocalDB;Database=MusicStore;Trusted_Connection=True;MultipleActiveResultSets=true;Connect Timeout=30;"
}
}
}

7
test/MusicStore.Test/HomeControllerTest.cs
View File

@ -7,6 +7,7 @@ using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.DependencyInjection;
using MusicStore.Models;
using MusicStore.Test;
using Xunit;
namespace MusicStore.Controllers
@ -30,7 +31,7 @@ namespace MusicStore.Controllers
public void Error_ReturnsErrorView()
{
// Arrange
var controller = new HomeController();
var controller = new HomeController(new TestAppSettings());
var errorView = "~/Views/Shared/Error.cshtml";
// Act
@ -48,7 +49,7 @@ namespace MusicStore.Controllers
// Arrange
var dbContext = _serviceProvider.GetRequiredService<MusicStoreContext>();
var cache = _serviceProvider.GetRequiredService<IMemoryCache>();
var controller = new HomeController();
var controller = new HomeController(new TestAppSettings());
PopulateData(dbContext);
// Action
@ -69,7 +70,7 @@ namespace MusicStore.Controllers
public void StatusCodePage_ReturnsStatusCodePage()
{
// Arrange
var controller = new HomeController();
var controller = new HomeController(new TestAppSettings());
var statusCodeView = "~/Views/Shared/StatusCodePage.cshtml";
// Action

15
test/MusicStore.Test/StoreControllerTest.cs
View File

@ -7,6 +7,7 @@ using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.DependencyInjection;
using MusicStore.Models;
using MusicStore.Test;
using Xunit;
namespace MusicStore.Controllers
@ -33,7 +34,7 @@ namespace MusicStore.Controllers
var dbContext = _serviceProvider.GetRequiredService<MusicStoreContext>();
CreateTestGenres(numberOfGenres: 10, numberOfAlbums: 1, dbContext: dbContext);
var controller = new StoreController(dbContext);
var controller = new StoreController(dbContext, new TestAppSettings());
// Act
var result = await controller.Index();
@ -51,7 +52,9 @@ namespace MusicStore.Controllers
public async Task Browse_ReturnsHttpNotFoundWhenNoGenreData()
{
// Arrange
var controller = new StoreController(_serviceProvider.GetRequiredService<MusicStoreContext>());
var controller = new StoreController(
_serviceProvider.GetRequiredService<MusicStoreContext>(),
new TestAppSettings());
// Act
var result = await controller.Browse(string.Empty);
@ -69,7 +72,7 @@ namespace MusicStore.Controllers
var dbContext = _serviceProvider.GetRequiredService<MusicStoreContext>();
CreateTestGenres(numberOfGenres: 3, numberOfAlbums: 3, dbContext: dbContext);
var controller = new StoreController(dbContext);
var controller = new StoreController(dbContext, new TestAppSettings());
// Act
var result = await controller.Browse(genreName);
@ -90,7 +93,9 @@ namespace MusicStore.Controllers
{
// Arrange
var albumId = int.MinValue;
var controller = new StoreController(_serviceProvider.GetRequiredService<MusicStoreContext>());
var controller = new StoreController(
_serviceProvider.GetRequiredService<MusicStoreContext>(),
new TestAppSettings());
// Act
var result = await controller.Details(_serviceProvider.GetRequiredService<IMemoryCache>(), albumId);
@ -110,7 +115,7 @@ namespace MusicStore.Controllers
var cache = _serviceProvider.GetRequiredService<IMemoryCache>();
var controller = new StoreController(dbContext);
var controller = new StoreController(dbContext, new TestAppSettings());
// Act
var result = await controller.Details(cache, albumId);

26
test/MusicStore.Test/TestAppSettings.cs Normal file
View File

@ -0,0 +1,26 @@
using Microsoft.Extensions.Options;
namespace MusicStore.Test
{
public class TestAppSettings : IOptions<AppSettings>
{
private readonly AppSettings _appSettings;
public TestAppSettings(bool storeInCache = true)
{
_appSettings = new AppSettings()
{
SiteTitle = "ASP.NET MVC Music Store",
CacheDbResults = storeInCache
};
}
public AppSettings Value
{
get
{
return _appSettings;
}
}
}
}