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Local object cache viewer #36
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33dccab
added Local Object Cache functionality
joemayberry 80b0e6f
some minor code fixes and refactorings
valdisiljuconoks 7cfa4d3
added object size
valdisiljuconoks 45d8c35
Added ViewObjectSize as optional action
valdisiljuconoks 3f3c41c
Added .Take(10k) to prevent potential out of mem case for installatio…
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125 changes: 125 additions & 0 deletions
125
DeveloperTools/Controllers/LocalObjectCacheController.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| using System; | ||
| using System.Collections; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Runtime.Serialization.Formatters.Binary; | ||
| using System.Web.Mvc; | ||
| using System.Web.Routing; | ||
| using DeveloperTools.Core; | ||
| using DeveloperTools.Models; | ||
| using EPiServer.Core; | ||
| using EPiServer.Framework.Cache; | ||
|
|
||
| namespace DeveloperTools.Controllers | ||
| { | ||
| public class LocalObjectCacheController : DeveloperToolsController | ||
| { | ||
| private readonly ISynchronizedObjectInstanceCache _cache; | ||
|
|
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| public LocalObjectCacheController(ISynchronizedObjectInstanceCache cache) | ||
| { | ||
| _cache = cache; | ||
| } | ||
|
|
||
| public ActionResult Index(string FilteredBy, bool os = false) | ||
| { | ||
| return View(PrepareViewModel(FilteredBy, os)); | ||
| } | ||
|
|
||
| [HttpParamAction] | ||
| public ActionResult RemoveLocalCache(string[] cacheKeys, bool os) | ||
| { | ||
| if(cacheKeys != null) | ||
| { | ||
| foreach (string key in cacheKeys) | ||
| { | ||
| _cache.RemoveLocal(key); | ||
| } | ||
| } | ||
|
|
||
| return RedirectToAction("Index", new RouteValueDictionary(new { os })); | ||
| } | ||
|
|
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| [HttpParamAction] | ||
| public ActionResult RemoveLocalRemoteCache(string[] cacheKeys, bool os) | ||
| { | ||
| if(cacheKeys != null) | ||
| { | ||
| foreach (string key in cacheKeys) | ||
| { | ||
| _cache.RemoveLocal(key); | ||
| _cache.RemoveRemote(key); | ||
| } | ||
| } | ||
|
|
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| return RedirectToAction("Index", new RouteValueDictionary(new { os })); | ||
| } | ||
|
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| [HttpParamAction] | ||
| public ActionResult ViewObjectSize() | ||
| { | ||
| return RedirectToAction("Index", new RouteValueDictionary(new { os = true })); | ||
| } | ||
|
|
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| private LocalObjectCache PrepareViewModel(string FilteredBy, bool viewObjectSize) | ||
| { | ||
| var model = new LocalObjectCache(); | ||
|
|
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| var cachedEntries = HttpContext.Cache.Cast<DictionaryEntry>(); | ||
|
|
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| switch (FilteredBy) | ||
| { | ||
| case "pages": | ||
| model.CachedItems = ConvertToListItem(cachedEntries.Where(item => item.Value is PageData), viewObjectSize); | ||
| break; | ||
| case "content": | ||
| model.CachedItems = ConvertToListItem(cachedEntries.Where(item => item.Value is IContent), viewObjectSize); | ||
| break; | ||
| default: | ||
| model.CachedItems = ConvertToListItem(cachedEntries, viewObjectSize); | ||
| break; | ||
| } | ||
|
|
||
| model.FilteredBy = FilteredBy; | ||
| model.Choices = new[] | ||
| { | ||
| new SelectListItem { Text = "All Cached Objects", Value = "all" }, | ||
| new SelectListItem { Text = "Any Content", Value = "content" }, | ||
| new SelectListItem { Text = "Pages Only", Value = "pages" } | ||
| }; | ||
|
|
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| model.ViewObjectSize = viewObjectSize; | ||
| return model; | ||
| } | ||
|
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| private IEnumerable<LocalObjectCacheItem> ConvertToListItem(IEnumerable<DictionaryEntry> cachedEntries, bool viewObjectSize) => | ||
| cachedEntries.Select(e => new LocalObjectCacheItem | ||
| { | ||
| Key = e.Key.ToString(), | ||
| Value = e.Value, | ||
| Size = viewObjectSize ? GetObjectSize(e.Value) : 0 | ||
| }).ToList(); | ||
|
|
||
| private static long GetObjectSize(object obj) | ||
| { | ||
| if(obj == null) | ||
| return 0; | ||
|
|
||
| try | ||
| { | ||
| using (Stream s = new MemoryStream()) | ||
| { | ||
| var formatter = new BinaryFormatter(); | ||
| formatter.Serialize(s, obj); | ||
|
|
||
| return s.Length; | ||
| } | ||
| } | ||
| catch (Exception) | ||
| { | ||
| return -1; | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| using System; | ||
| using System.Reflection; | ||
| using System.Web.Mvc; | ||
|
|
||
| namespace DeveloperTools.Core | ||
| { | ||
| public class HttpParamActionAttribute : ActionNameSelectorAttribute | ||
| { | ||
| public override bool IsValidName(ControllerContext controllerContext, string actionName, MethodInfo methodInfo) | ||
| { | ||
| if(actionName.Equals(methodInfo.Name, StringComparison.InvariantCultureIgnoreCase)) | ||
| return true; | ||
|
|
||
| if(!actionName.Equals("Action", StringComparison.InvariantCultureIgnoreCase)) | ||
| return false; | ||
|
|
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| var request = controllerContext.RequestContext.HttpContext.Request; | ||
| return request[methodInfo.Name] != null; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| using System.Collections.Generic; | ||
| using System.Web.Mvc; | ||
|
|
||
| namespace DeveloperTools.Models | ||
| { | ||
| public class LocalObjectCache | ||
| { | ||
| public IEnumerable<LocalObjectCacheItem> CachedItems { get; set; } | ||
|
|
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| public string FilteredBy { get; set; } | ||
|
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| public IEnumerable<SelectListItem> Choices { get; set; } | ||
|
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| public bool ViewObjectSize { get; set; } | ||
| } | ||
|
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| public class LocalObjectCacheItem | ||
| { | ||
| public string Key { get; set; } | ||
|
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| public object Value { get; set; } | ||
|
|
||
| public long Size { get; set; } | ||
| } | ||
| } |
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108 changes: 108 additions & 0 deletions
108
DeveloperTools/modules/_protected/EPiServer.DeveloperTools/Views/LocalObjectCache/Index.aspx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<DeveloperTools.Models.LocalObjectCache>" MasterPageFile="../Shared/DeveloperTools.Master" %> | ||
|
|
||
| <asp:Content ID="Styles" runat="server" ContentPlaceHolderID="HeaderStyles"> | ||
| <style type="text/css"> | ||
| .table-column-width { | ||
| width: 30%; | ||
| } | ||
| .stripe tbody tr:nth-child(even) { | ||
| background-color: #f0f2f2; | ||
| } | ||
| </style> | ||
| </asp:Content> | ||
|
|
||
| <asp:Content ID="Content" runat="server" ContentPlaceHolderID="MainRegion"> | ||
| <link rel="stylesheet" type="text/css" href="//ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.0/css/jquery.dataTables.css" /> | ||
| <script type="text/javascript" language="javascript" src="//ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.1.min.js"></script> | ||
| <script src="//ajax.aspnetcdn.com/ajax/jquery.dataTables/1.9.0/jquery.dataTables.min.js" type="text/javascript"></script> | ||
|
|
||
| <div class="epi-contentContainer epi-padding"> | ||
| <div class="epi-contentArea"> | ||
| <h1>Local Object Cache</h1> | ||
| <p class="EP-systemInfo">This tool shows all of the current items in the local object cache, and allows the deletion of one or more cached items.</p> | ||
| </div> | ||
|
|
||
| <div class="epi-contentArea epi-formArea"> | ||
| <%using (Html.BeginForm("Index", "LocalObjectCache", FormMethod.Post)) | ||
| { %> | ||
| <%= Html.AntiForgeryToken() %> | ||
|
|
||
| <table class="table"> | ||
| <tr> | ||
| <td>Filter By</td> | ||
| <td><%= Html.DropDownListFor(m => m.FilteredBy, Model.Choices) %></td> | ||
| <td> | ||
| <span class="epi-cmsButton"> | ||
| <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)" /> | ||
| </span> | ||
| </td> | ||
| </tr> | ||
| </table> | ||
| <% } %> | ||
|
|
||
| <% using (Html.BeginForm("Action", "LocalObjectCache", FormMethod.Post)) | ||
| { %> | ||
| <div class="epi-contentArea"> | ||
| <p class="EP-systemInfo">Total count of cached items: <%= Model.CachedItems.Count() %></p> | ||
| </div> | ||
| <div class="epi-buttonDefault"> | ||
| <span class="epi-cmsButton"> | ||
| <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)" /> | ||
| </span> | ||
| <span class="epi-cmsButton"> | ||
| <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)" /> | ||
| </span> | ||
| <span class="epi-cmsButton"> | ||
| <input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-ViewMode" type="submit" name="ViewObjectSize" id="ViewObjectSize" value="View Object Size" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" /> | ||
| </span> | ||
| </div> | ||
|
|
||
| <table class="table table-condensed table-bordered table-condensed stripe"> | ||
| <thead> | ||
| <tr> | ||
| <th><input type="checkbox" id="clearAll" name="clearAll" onClick="toggle(this)" value="true" /></th> | ||
| <th class="table-column-width">Key</th> | ||
| <th class="table-column-width">Type</th> | ||
| <th>Size</th> | ||
| </tr> | ||
| </thead> | ||
| <tbody> | ||
| <% foreach (var item in Model.CachedItems) | ||
| { %> | ||
| <tr> | ||
| <td class="center"><input type="checkbox" id="<%= item.Key %>" name="cacheKeys" value="<%= item.Key %>" /></td> | ||
| <td><%= item.Key %></td> | ||
| <td><%= item.Value.GetType() %></td> | ||
| <td><%= item.Size %></td> | ||
| </tr> | ||
| <% } %> | ||
| </tbody> | ||
| </table> | ||
|
|
||
| <div class="epi-buttonDefault"> | ||
| <span class="epi-cmsButton"> | ||
| <input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-Delete" type="submit" name="RemoveLocalCache" id="RemoveLocalCacheBottom" value="Remove Local Cache Items" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" /> | ||
| </span> | ||
| <span class="epi-cmsButton"> | ||
| <input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-Delete" type="submit" name="removeLocalRemoteCache" id="removeLocalRemoteCacheBottom" value="Remove Local and Remote Cache Items" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" /> | ||
| </span> | ||
| <span class="epi-cmsButton"> | ||
| <input class="epi-cmsButton-text epi-cmsButton-tools epi-cmsButton-ViewMode" type="submit" name="ViewObjectSize" id="ViewObjectSize" value="View Object Size" onmouseover="EPi.ToolButton.MouseDownHandler(this)" onmouseout="EPi.ToolButton.ResetMouseDownHandler(this)" /> | ||
| </span> | ||
| </div> | ||
|
|
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| <input type="hidden" id="os" name="os" value="<%= Model.ViewObjectSize %>"/> | ||
| <% } %> | ||
| </div> | ||
| </div> | ||
|
|
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| <script language="JavaScript"> | ||
| function toggle(source) { | ||
| checkboxes = document.getElementsByName('cacheKeys'); | ||
| for (var i = 0, n = checkboxes.length; i < n; i++) { | ||
| checkboxes[i].checked = source.checked; | ||
| } | ||
| } | ||
| </script> | ||
| </asp:Content> |
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I think just adding a Take(10,000) here would protect against issues with really large caches until server side paging is in place. This code otherwise have the potential of running a server out of memory.