From 1d1613a4e3747fc6ee85823dd31003afa53620a8 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Fri, 6 Oct 2023 13:31:41 +0100
Subject: [PATCH] [IFilter] Add base implementations.

---
 Interfaces/IFilter.cs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/Interfaces/IFilter.cs b/Interfaces/IFilter.cs
index 03f591b..eca29c8 100644
--- a/Interfaces/IFilter.cs
+++ b/Interfaces/IFilter.cs
@@ -128,7 +128,7 @@ public interface IFilter
 
     /// <summary>Identifies if the specified path contains data recognizable by this filter instance</summary>
     /// <param name="path">Path.</param>
-    bool Identify(string path);
+    bool Identify(string path) => File.Exists(path) && Identify(new FileStream(path, FileMode.Open, FileAccess.Read));
 
     /// <summary>Identifies if the specified stream contains data recognizable by this filter instance</summary>
     /// <param name="stream">Stream.</param>
@@ -136,11 +136,13 @@ public interface IFilter
 
     /// <summary>Identifies if the specified buffer contains data recognizable by this filter instance</summary>
     /// <param name="buffer">Buffer.</param>
-    bool Identify(byte[] buffer);
+    bool Identify(byte[] buffer) => Identify(new MemoryStream(buffer));
 
     /// <summary>Opens the specified path with this filter instance</summary>
     /// <param name="path">Path.</param>
-    ErrorNumber Open(string path);
+    ErrorNumber Open(string path) => !File.Exists(path)
+                                         ? ErrorNumber.NoSuchFile
+                                         : Open(new FileStream(path, FileMode.Open, FileAccess.Read));
 
     /// <summary>Opens the specified stream with this filter instance</summary>
     /// <param name="stream">Stream.</param>
@@ -148,5 +150,5 @@ public interface IFilter
 
     /// <summary>Opens the specified buffer with this filter instance</summary>
     /// <param name="buffer">Buffer.</param>
-    ErrorNumber Open(byte[] buffer);
+    ErrorNumber Open(byte[] buffer) => Open(new MemoryStream(buffer));
 }
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