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Parametrization of the base virtual path #19

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Parametrization of the base virtual path #19

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1c49e03
Parametrization of the base virtual path
fmmsilva Sep 26, 2014
cb0c3ff
Respeitandos dependencias do XMLCache
fmmsilva Oct 23, 2014
0d59f75
Ajustei o método PopulateDependencies
fmmsilva Oct 23, 2014
b43103f
Criei um TO-DO para implementar em outro momento
fmmsilva Oct 23, 2014
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1 change: 1 addition & 0 deletions src/SoundInTheory.DynamicImage/Caching/DynamicImageCacheManager.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,7 @@ public static void Remove(ImageSource source)
dependencies.ForEach(RemoveByDependency);
}


public static void RemoveAll()
{
Provider.RemoveAllFromCache();
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3 changes: 2 additions & 1 deletion src/SoundInTheory.DynamicImage/Caching/DynamicImageCacheProvider.cs
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Expand Up @@ -14,5 +14,6 @@ public abstract class DynamicImageCacheProvider : ProviderBase

public abstract DateTime GetImageLastModifiedDate(HttpContext context, string cacheKey, string fileExtension);
public abstract void SendImageToHttpResponse(HttpContext context, string cacheKey, string fileExtension);
}

}
}
10 changes: 7 additions & 3 deletions src/SoundInTheory.DynamicImage/Caching/ImageUrlGenerator.cs
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@@ -1,4 +1,6 @@
using System.Linq;
using SoundInTheory.DynamicImage.Configuration;
using System.Configuration;
using System.Linq;
using System.Web;

namespace SoundInTheory.DynamicImage.Caching
Expand All @@ -23,9 +25,11 @@ public static string GetImageUrl(Composition composition)

private static string GetUrl(string cacheKey, ImageProperties imageProperties)
{
const string path = "~/Assets/Images/DynamicImages/";
var config = ((DynamicImageSection)ConfigurationManager.GetSection("soundInTheory/dynamicImage")) ?? new DynamicImageSection();
string path = config.BaseVirtualPath;
string fileName = string.Format("{0}.{1}", cacheKey, imageProperties.FileExtension);
return VirtualPathUtility.ToAbsolute(path) + fileName;
}
}

}
}
343 changes: 172 additions & 171 deletions src/SoundInTheory.DynamicImage/Caching/XmlCacheProvider.cs
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Expand Up @@ -6,175 +6,176 @@

namespace SoundInTheory.DynamicImage.Caching
{
public class XmlCacheProvider : DiskCacheProviderBase, IDisposable
{
private string _docPath;
private FileSystemWatcher _watcher;
private XDocument _doc;

public override void Initialize(string name, System.Collections.Specialized.NameValueCollection config)
{
base.Initialize(name, config);

_docPath = HttpContext.Current.Server.MapPath(string.Format("{0}/DynamicImageCache.xml", CachePath));
EnsureDocument();

_watcher = new FileSystemWatcher(Path.GetDirectoryName(_docPath), "DynamicImageCache.xml");
_watcher.Deleted += (sender, e) => _doc = null;
}

void IDisposable.Dispose()
{
if (_watcher != null)
_watcher.Dispose();
}

private void EnsureDocument()
{
lock (this)
{
string imageCacheFolder = HttpContext.Current.Server.MapPath(CachePath);
if (!Directory.Exists(imageCacheFolder))
Directory.CreateDirectory(imageCacheFolder);

if (!File.Exists(_docPath))
{
string xml = new XElement("cache").ToString();
using (var stream = File.CreateText(_docPath))
stream.Write(xml);
}

if (_doc == null)
_doc = XDocument.Load(_docPath);
}
}

public override bool ExistsInCache(string cacheKey)
{
EnsureDocument();
return _doc.Root.Elements().Any(e => e.Attribute("id").Value == cacheKey);
}

public override void AddToCache(string cacheKey, GeneratedImage generatedImage, Dependency[] dependencies)
{
EnsureDocument();

// Save image to disk.
SaveImageToDiskCache(cacheKey, generatedImage);

lock (_doc)
{
// Double-check that item hasn't been added to cache since we checked.
if (ExistsInCache(cacheKey))
return;

var itemElement = new XElement("item",
new XAttribute("id", cacheKey),
new XAttribute("isImagePresent", generatedImage.Properties.IsImagePresent),
new XAttribute("format", generatedImage.Properties.Format),
new XAttribute("colorDepth", generatedImage.Properties.ColorDepth));
if (generatedImage.Properties.Width != null)
itemElement.Add(new XAttribute("width", generatedImage.Properties.Width.Value));
if (generatedImage.Properties.Height != null)
itemElement.Add(new XAttribute("height", generatedImage.Properties.Height.Value));
if (generatedImage.Properties.JpegCompressionLevel != null)
itemElement.Add(new XAttribute("jpegCompressionLevel", generatedImage.Properties.JpegCompressionLevel.Value));

XElement dependenciesElement = new XElement("dependencies");
itemElement.Add(dependenciesElement);

foreach (var dependency in dependencies)
dependenciesElement.Add(new XElement("dependency",
new XAttribute("text1", dependency.Text1 ?? string.Empty),
new XAttribute("text2", dependency.Text2 ?? string.Empty),
new XAttribute("text3", dependency.Text3 ?? string.Empty),
new XAttribute("text4", dependency.Text4 ?? string.Empty)));

_doc.Root.Add(itemElement);
_doc.Save(_docPath);
}
}

public override ImageProperties GetPropertiesFromCache(string cacheKey)
{
EnsureDocument();

lock (_doc)
{
ImageProperties result = null;

XElement itemElement = _doc.Root.Elements().SingleOrDefault(e => e.Attribute("id").Value == cacheKey);
if (itemElement != null)
result = GetImageProperties(itemElement);

return result;
}
}

private static ImageProperties GetImageProperties(XElement itemElement)
{
string cacheKey;
ImageProperties result;
GetImageProperties(itemElement, out cacheKey, out result);
return result;
}

private static void GetImageProperties(XElement itemElement, out string cacheKey, out ImageProperties imageProperties)
{
imageProperties = new ImageProperties();
imageProperties.IsImagePresent = Convert.ToBoolean(itemElement.Attribute("isImagePresent").Value);
imageProperties.Format = (DynamicImageFormat)Enum.Parse(typeof(DynamicImageFormat), itemElement.Attribute("format").Value);
if (itemElement.Attribute("width") != null)
imageProperties.Width = Convert.ToInt32(itemElement.Attribute("width").Value);
if (itemElement.Attribute("height") != null)
imageProperties.Height = Convert.ToInt32(itemElement.Attribute("height").Value);
imageProperties.ColorDepth = Convert.ToInt32(itemElement.Attribute("colorDepth").Value);
if (itemElement.Attribute("jpegCompressionLevel") != null)
imageProperties.JpegCompressionLevel = Convert.ToInt32(itemElement.Attribute("jpegCompressionLevel").Value);
cacheKey = itemElement.Attribute("id").Value;
}

public override void RemoveAllFromCache()
{
EnsureDocument();

lock (_doc)
{
foreach (XElement itemElement in _doc.Root.Elements())
{
string cacheKey;
ImageProperties imageProperties;
GetImageProperties(itemElement, out cacheKey, out imageProperties);
DeleteImageFromDiskCache(cacheKey, imageProperties , HttpContext.Current);
itemElement.Remove();
}
_doc.Save(_docPath);
}
}

public override void RemoveFromCache(Dependency dependency)
{
EnsureDocument();

lock (_doc)
{
Func<XElement, bool> attributeMatcher = d => d.Attribute("text1").Value == dependency.Text1
&& d.Attribute("text2").Value == dependency.Text2
&& d.Attribute("text3").Value == dependency.Text3
&& d.Attribute("text4").Value == dependency.Text4;

var items = _doc.Root.Elements().Where(e => e.Element("dependencies").Elements().Any(attributeMatcher)).ToList();
foreach (XElement itemElement in items)
{
string cacheKey;
ImageProperties imageProperties;
GetImageProperties(itemElement, out cacheKey, out imageProperties);
DeleteImageFromDiskCache(cacheKey, imageProperties, HttpContext.Current);
itemElement.Remove();
}

_doc.Save(_docPath);
}
}
}
public class XmlCacheProvider : DiskCacheProviderBase, IDisposable
{
private string _docPath;
private FileSystemWatcher _watcher;
private XDocument _doc;

public override void Initialize(string name, System.Collections.Specialized.NameValueCollection config)
{
base.Initialize(name, config);

_docPath = HttpContext.Current.Server.MapPath(string.Format("{0}/DynamicImageCache.xml", CachePath));
EnsureDocument();

_watcher = new FileSystemWatcher(Path.GetDirectoryName(_docPath), "DynamicImageCache.xml");
_watcher.Deleted += (sender, e) => _doc = null;
}

void IDisposable.Dispose()
{
if (_watcher != null)
_watcher.Dispose();
}

private void EnsureDocument()
{
lock (this)
{
string imageCacheFolder = HttpContext.Current.Server.MapPath(CachePath);
if (!Directory.Exists(imageCacheFolder))
Directory.CreateDirectory(imageCacheFolder);

if (!File.Exists(_docPath))
{
string xml = new XElement("cache").ToString();
using (var stream = File.CreateText(_docPath))
stream.Write(xml);
}

if (_doc == null)
_doc = XDocument.Load(_docPath);
}
}

public override bool ExistsInCache(string cacheKey)
{
EnsureDocument();
return _doc.Root.Elements().Any(e => e.Attribute("id").Value == cacheKey);
}

public override void AddToCache(string cacheKey, GeneratedImage generatedImage, Dependency[] dependencies)
{
EnsureDocument();

// Save image to disk.
SaveImageToDiskCache(cacheKey, generatedImage);

lock (_doc)
{
// Double-check that item hasn't been added to cache since we checked.
if (ExistsInCache(cacheKey))
return;

var itemElement = new XElement("item",
new XAttribute("id", cacheKey),
new XAttribute("isImagePresent", generatedImage.Properties.IsImagePresent),
new XAttribute("format", generatedImage.Properties.Format),
new XAttribute("colorDepth", generatedImage.Properties.ColorDepth));
if (generatedImage.Properties.Width != null)
itemElement.Add(new XAttribute("width", generatedImage.Properties.Width.Value));
if (generatedImage.Properties.Height != null)
itemElement.Add(new XAttribute("height", generatedImage.Properties.Height.Value));
if (generatedImage.Properties.JpegCompressionLevel != null)
itemElement.Add(new XAttribute("jpegCompressionLevel", generatedImage.Properties.JpegCompressionLevel.Value));

XElement dependenciesElement = new XElement("dependencies");
itemElement.Add(dependenciesElement);

foreach (var dependency in dependencies)
dependenciesElement.Add(new XElement("dependency",
new XAttribute("text1", dependency.Text1 ?? string.Empty),
new XAttribute("text2", dependency.Text2 ?? string.Empty),
new XAttribute("text3", dependency.Text3 ?? string.Empty),
new XAttribute("text4", dependency.Text4 ?? string.Empty)));

_doc.Root.Add(itemElement);
_doc.Save(_docPath);
}
}

public override ImageProperties GetPropertiesFromCache(string cacheKey)
{
EnsureDocument();

lock (_doc)
{
ImageProperties result = null;

XElement itemElement = _doc.Root.Elements().SingleOrDefault(e => e.Attribute("id").Value == cacheKey);
if (itemElement != null)
result = GetImageProperties(itemElement);

return result;
}
}

private static ImageProperties GetImageProperties(XElement itemElement)
{
string cacheKey;
ImageProperties result;
GetImageProperties(itemElement, out cacheKey, out result);
return result;
}

private static void GetImageProperties(XElement itemElement, out string cacheKey, out ImageProperties imageProperties)
{
imageProperties = new ImageProperties();
imageProperties.IsImagePresent = Convert.ToBoolean(itemElement.Attribute("isImagePresent").Value);
imageProperties.Format = (DynamicImageFormat)Enum.Parse(typeof(DynamicImageFormat), itemElement.Attribute("format").Value);
if (itemElement.Attribute("width") != null)
imageProperties.Width = Convert.ToInt32(itemElement.Attribute("width").Value);
if (itemElement.Attribute("height") != null)
imageProperties.Height = Convert.ToInt32(itemElement.Attribute("height").Value);
imageProperties.ColorDepth = Convert.ToInt32(itemElement.Attribute("colorDepth").Value);
if (itemElement.Attribute("jpegCompressionLevel") != null)
imageProperties.JpegCompressionLevel = Convert.ToInt32(itemElement.Attribute("jpegCompressionLevel").Value);
cacheKey = itemElement.Attribute("id").Value;
}

public override void RemoveAllFromCache()
{
EnsureDocument();

lock (_doc)
{
foreach (XElement itemElement in _doc.Root.Elements())
{
string cacheKey;
ImageProperties imageProperties;
GetImageProperties(itemElement, out cacheKey, out imageProperties);
DeleteImageFromDiskCache(cacheKey, imageProperties, HttpContext.Current);
itemElement.Remove();
}
_doc.Save(_docPath);
}
}

public override void RemoveFromCache(Dependency dependency)
{
EnsureDocument();

lock (_doc)
{
var items = _doc.Root.Elements().Where(e => e.Element("dependencies").Elements().Any(m =>
m.Attribute("text1").Value == (dependency.Text1) &&
m.Attribute("text2").Value == (dependency.Text2 ?? "") &&
m.Attribute("text3").Value == (dependency.Text3 ?? "") &&
m.Attribute("text4").Value == (dependency.Text4 ?? "")
)).ToList();
foreach (XElement itemElement in items)
{
string cacheKey;
ImageProperties imageProperties;
GetImageProperties(itemElement, out cacheKey, out imageProperties);
DeleteImageFromDiskCache(cacheKey, imageProperties, HttpContext.Current);
itemElement.Remove();
}

_doc.Save(_docPath);
}
}

}
}
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