Add AttributeView and FileAttributeView interface (#184)

JShim/JShim.csproj

@@ -58,7 +58,9 @@
     <Compile Include="Java\IO\ObjectInputStream.cs" />
     <Compile Include="Java\IO\ObjectOutputStream.cs" />
     <Compile Include="Java\Lang\Runnable.cs" />
+    <Compile Include="Java\NIO\File\Attribute\AttributeView.cs" />
     <Compile Include="Java\NIO\File\Attribute\BasicFileAttributeView.cs" />
+    <Compile Include="Java\NIO\File\Attribute\FileAttributeView.cs" />
     <Compile Include="Java\Time\Instant.cs" />
     <Compile Include="Java\Time\LocalDateTime.cs" />
     <Compile Include="Java\Time\ZonedDateTime.cs" />

JShim/Java/NIO/File/Attribute/AttributeView.cs

@@ -0,0 +1,18 @@
+
+using System;
+
+namespace Java.NIO.File.Attribute
+{
+	/// <summary>
+	/// An object that provides a read-only or updatable view of non-opaque 
+	/// values associated with an object in a filesystem. This interface is 
+	/// extended or implemented by specific attribute views that define the 
+	/// attributes supported by the view. A specific attribute view will 
+	/// typically define type-safe methods to read or update the attributes 
+	/// that it supports.
+	/// </summary>
+	public interface AttributeView
+	{
+		string Name();
+	}
+}

JShim/Java/NIO/File/Attribute/BasicFileAttributeView.cs

@@ -6,12 +6,77 @@
 namespace Java.NIO.File.Attribute
 {
 	/// <summary>
-	/// Description of BasicFileAttributeView.
+	/// A file attribute view that provides a view of a basic set of file 
+	/// attributes common to many file systems. The basic set of file 
+	/// attributes consist of mandatory and optional file attributes as defined 
+	/// by the BasicFileAttributes interface.
+	/// 
+	/// The file attributes are retrieved from the file system as a bulk 
+	/// operation by invoking the readAttributes method. This class also 
+	/// defines the setTimes method to update the file's time attributes.
+	/// 
+	/// Where dynamic access to file attributes is required, the attributes 
+	/// supported by this attribute view have the following names and types:
+	/// <list type="table">
+	/// 	<listheader>
+	/// 		<term>Name</term>
+	/// 		<description>Type</description>
+	/// 	</listheader>
+	/// 	<item>
+	/// 		<term>"lastModifiedTime"</term>
+	/// 		<description><c>DateTime</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"lastAccessTime"</term>
+	/// 		<description><c>DateTime</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"creationTime"</term>
+	/// 		<description><c>DateTime</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"size"</term>
+	/// 		<description><c>long</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"isRegularFile"</term>
+	/// 		<description><c>bool</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"isDirectory"</term>
+	/// 		<description><c>bool</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"isSymbolicLink"</term>
+	/// 		<description><c>bool</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"isOther"</term>
+	/// 		<description><c>bool</c></description>
+	/// 	</item>
+	/// 	<item>
+	/// 		<term>"fileKey"</term>
+	/// 		<description><c>object</c></description>
+	/// 	</item>
+	/// </list>
+	/// 
+	/// <para>
+	/// The <c>GetAttribute</c> method may be used to read any of these 
+	/// attributes as if by invoking the <c>ReadAttributes()</c> method.
+	/// </para>
+	/// 
+	/// <para>
+	/// The <c>SetAttribute</c> method may be used to update the file's last 
+	/// modified time, last access time or create time attributes as if by 
+	/// invoking the <c>SetTimes</c> method.
+	/// </para>
 	/// </summary>
-	public class BasicFileAttributeView
+	public class BasicFileAttributeView : FileAttributeView
 	{
 		private static readonly ILog LOG = LogManager.GetLogger(typeof(BasicFileAttributeView));
 
+		public const string Basic = "basic";
+
 		private FileSystemInfo file;
 
 		public BasicFileAttributeView(FileSystemInfo file)
@@ -70,5 +135,10 @@ private void EnableWriteProtection(bool writeProtect)
 				fi.IsReadOnly = writeProtect;
 			}
 		}
+
+		public string Name()
+		{
+			return Basic;
+		}
 	}
 }

JShim/Java/NIO/File/Attribute/FileAttributeView.cs

@@ -0,0 +1,15 @@
+
+using System;
+
+namespace Java.NIO.File.Attribute
+{
+	/// <summary>
+	/// An attribute view that is a read-only or updatable view of non-opaque 
+	/// values associated with a file in a filesystem. This interface is 
+	/// extended or implemented by specific file attribute views that define 
+	/// methods to read and/or update the attributes of a file.
+	/// </summary>
+	public interface FileAttributeView : AttributeView
+	{
+	}
+}

JShim/Java/NIO/File/Files.cs

@@ -133,9 +133,9 @@ private static FileVisitResult VisitFile(FileInfo file, FileVisitor visitor)
 			return result;
 		}
 
-		public static T GetFileAttributeView<T>(FileSystemInfo fsi, Type type) where T : BasicFileAttributeView
+		public static V GetFileAttributeView<V>(FileSystemInfo fsi, Type type) where V : FileAttributeView
 		{
-			T view = (T) Activator.CreateInstance(type, new object[] { fsi });
+			V view = (V) Activator.CreateInstance(type, new object[] { fsi });
 			return view;
 		}
 	}

Wreck/IO/Reader/MetaTag/SevenZipReader.cs

@@ -83,11 +83,7 @@ public override void Extract(FileSystemInfo file, List<Metadata> metadata)
 
 			try
 			{
-				string password = passwordProvider.GetPassword(file);
-
-				using(SevenZipExtractor sze = string.IsNullOrEmpty(password)?
-				      new SevenZipExtractor(file.FullName):
-				      new SevenZipExtractor(file.FullName, password))
+				using(SevenZipExtractor sze = Get7ZipExtractor((FileInfo) file))
 				{
 					DateTime modified = DateTime.MinValue;
 					for (int i = 0; i < sze.ArchiveFileData.Count; i++)
@@ -120,5 +116,32 @@ public override void Extract(FileSystemInfo file, List<Metadata> metadata)
 //				throw new ArgumentException(ex.Message, ex);
 			}
 		}
+
+		private SevenZipExtractor Get7ZipExtractor(FileInfo file)
+		{
+			SevenZipExtractor sze;
+
+			string password = passwordProvider.GetPassword(file);
+
+			// HACK: Specify archive format for unrecognized extensions.
+			if(file.Extension.EndsWith(".cbr"))
+			{
+				// Format is specified. Tell 7-Zip to treat file as certain format.
+				InArchiveFormat rar = InArchiveFormat.Rar;
+
+				sze = string.IsNullOrEmpty(password)?
+					new SevenZipExtractor(file.FullName, rar):
+					new SevenZipExtractor(file.FullName, password, rar);
+			}
+			else
+			{
+				// If no format is specified, use auto-detection by 7-Zip library.
+				sze = string.IsNullOrEmpty(password)?
+					new SevenZipExtractor(file.FullName):
+					new SevenZipExtractor(file.FullName, password);
+			}
+
+			return sze;
+		}
 	}
 }