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Added local cache viewer
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12 files changed

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-308
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12 files changed

+308
-308
lines changed

‎DeveloperTools/Controllers/LocalObjectCacheController.cs‎

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This file was deleted.

‎DeveloperTools/EPiServer.DeveloperTools.Views/Views/LocalObjectCache/Index.cshtml‎

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@model EPiServer.DeveloperTools.Features.LocalObjectCache.LocalObjectCacheModel
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<div class="epi-contentArea">
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<h1 class="EP-prefix">Local Object Cache</h1>
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<p>
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This tool shows all of the current items in the local object cache, and allows the deletion of one or more cached items.
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</p>
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</div>
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<div class="epi-contentArea epi-formArea">
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@using (Html.BeginForm("Index", "LocalObjectCache", FormMethod.Post))
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{
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@Html.AntiForgeryToken()
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<div>
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<span>Filter By</span>
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<span>@Html.DropDownListFor(m => m.FilteredBy, Model.Choices)</span>
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<span class="epi-cmsButton">
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<input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-Refresh" type="submit" name="filter" id="filter" value="Filter" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)"/>
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</span>
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</div>
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}
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<form action="" method="post">
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<div class="epi-contentArea">
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<p class="EP-systemInfo">Total count of cached items: @Model.CachedItems.Count()</p>
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</div>
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<div class="epi-buttonDefault">
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<span class="epi-cmsButton">
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<input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-Delete" type="submit" name="RemoveLocalCache" id="RemoveLocalCache" value="Remove Local Cache Items" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" />
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</span>
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<span class="epi-cmsButton">
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<input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-Delete" type="submit" name="removeLocalRemoteCache" id="removeLocalRemoteCache" value="Remove Local and Remote Cache Items" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" />
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</span>
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<span class="epi-cmsButton">
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<input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-ViewMode" type="submit" formaction="ViewObjectSize" name="ViewObjectSize" id="ViewObjectSize" value="View Object Size" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" />
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</span>
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</div>
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<table class="table table-condensed table-bordered table-condensed stripe">
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<thead>
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<tr>
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<th><input type="checkbox" id="clearAll" name="clearAll" onClick="toggle(this)" value="true" /></th>
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<th class="table-column-width">Key</th>
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<th class="table-column-width">Type</th>
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<th>Size (bytes)</th>
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</tr>
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</thead>
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<tbody>
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@foreach (var item in Model.CachedItems)
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{
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<tr>
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<td class="center"><input type="checkbox" id="@item.Key" name="cacheKeys" value="@item.Key"/></td>
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<td>@item.Key</td>
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<td>@item.Value.GetType()</td>
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<td>@item.Size</td>
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</tr>
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}
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</tbody>
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</table>
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<input type="hidden" id="os" name="os" value="@Model.ViewObjectSize.ToString()" />
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</form>
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</div>
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@section AdditionalScripts {
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<script language="JavaScript">
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function toggle(source) {
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checkboxes = document.getElementsByName('cacheKeys');
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for (var i = 0, n = checkboxes.length; i < n; i++) {
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checkboxes[i].checked = source.checked;
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}
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}
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</script>
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}
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@section AdditionalStyles {
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<style>
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.table-column-width {
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width: 30%;
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}
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.stripe tbody tr:nth-child(even) {
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background-color: #f0f2f2;
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}
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</style>
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}

‎DeveloperTools/EPiServer.DeveloperTools.Views/Views/Shared/_ShellLayout.cshtml‎

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box-sizing: border-box;
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}
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</style>
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@await RenderSectionAsync("AdditionalStyles", false)
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</head>
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<body>
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@Html.AntiForgeryToken()
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<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
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@ClientResources.RenderResources("developertools", new[] { ClientResourceType.Script })
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@RenderSection("AdditionalScripts", false)
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@await RenderSectionAsync("AdditionalScripts", false)
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</body>
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</html>

‎DeveloperTools/Features/LocalObjectCache/LocalObjectCacheController.cs‎

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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Reflection;
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using System.Runtime.Serialization.Formatters.Binary;
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using EPiServer.Core;
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using EPiServer.DataAbstraction;
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using EPiServer.DeveloperTools.Features.Common;
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using EPiServer.DeveloperTools.Infrastructure;
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using EPiServer.Framework.Cache;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.Rendering;
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using Microsoft.AspNetCore.Routing;
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using Microsoft.Extensions.Caching.Memory;
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namespace EPiServer.DeveloperTools.Features.LocalObjectCache;
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public class LocalObjectCacheController : DeveloperToolsController
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{
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private readonly ISynchronizedObjectInstanceCache _cache;
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private readonly IMemoryCache _memoryCache;
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public LocalObjectCacheController(ISynchronizedObjectInstanceCache cache, IMemoryCache memoryCache)
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{
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_cache = cache;
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_memoryCache = memoryCache;
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}
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[HttpGet]
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[HttpPost]
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public ActionResult Index(string filteredBy, bool os = false)
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{
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return View(PrepareViewModel(filteredBy, os));
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}
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[HttpPost]
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public ActionResult RemoveLocalCache(string[] cacheKeys, bool os)
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{
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if (cacheKeys != null)
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{
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foreach (var key in cacheKeys)
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{
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_cache.RemoveLocal(key);
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}
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}
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return RedirectToAction(nameof(Index), new RouteValueDictionary(new { os }));
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}
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[HttpPost]
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public ActionResult RemoveLocalRemoteCache(string[] cacheKeys, bool os)
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{
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if (cacheKeys != null)
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{
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foreach (var key in cacheKeys)
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{
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_cache.RemoveLocal(key);
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_cache.RemoveRemote(key);
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}
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}
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return RedirectToAction(nameof(Index), new RouteValueDictionary(new { os }));
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}
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[HttpPost]
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public ActionResult ViewObjectSize()
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{
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return RedirectToAction(nameof(Index), new RouteValueDictionary(new { os = true }));
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}
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private LocalObjectCacheModel PrepareViewModel(string filteredBy, bool viewObjectSize)
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{
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var model = new LocalObjectCacheModel();
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// try to get in-memory cache object
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if (_memoryCache is MemoryCache memCache)
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{
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var entriesFieldInfo = memCache.GetType().GetField("_entries", BindingFlags.NonPublic | BindingFlags.Instance);
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if (entriesFieldInfo != null && entriesFieldInfo.GetValue(memCache) is IDictionary entries)
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{
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model.CachedItems = ConvertToListItem(entries, viewObjectSize, filteredBy);
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}
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}
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model.FilteredBy = filteredBy;
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model.Choices = new[]
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{
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new SelectListItem { Text = "All Cached Objects", Value = "all" },
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new SelectListItem { Text = "Any Content", Value = "content" },
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new SelectListItem { Text = "Pages Only", Value = "pages" },
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new SelectListItem { Text = "Property Definitions Only", Value = "properties" },
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};
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model.ViewObjectSize = viewObjectSize;
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return model;
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}
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private IEnumerable<LocalObjectCacheModelItem> ConvertToListItem(
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IDictionary cachedEntries,
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bool viewObjectSize,
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string filteredBy)
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{
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var result = new List<LocalObjectCacheModelItem>();
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foreach (var key in cachedEntries.Keys)
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{
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var value = cachedEntries[key].GetProperty("Value");
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switch (filteredBy)
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{
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case "content":
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value = value as IContent;
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break;
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case "pages":
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value = value as PageData;
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break;
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case "properties":
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value = value as PropertyDefinition;
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break;
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}
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if (value != null)
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{
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result.Add(
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new LocalObjectCacheModelItem
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{
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Key = key.ToString(), Value = value, Size = viewObjectSize ? GetObjectSize(value) : 0
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});
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}
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}
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return result;
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}
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private static long GetObjectSize(object obj)
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{
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if (obj == null)
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{
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return 0;
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}
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try
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{
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using Stream s = new MemoryStream();
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var formatter = new BinaryFormatter();
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formatter.Serialize(s, obj);
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return s.Length;
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}
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catch (Exception)
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{
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return -1;
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}
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}
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}

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