Added support for oracle database

Giorgi · Sep 15, 2024 · 39f1088 · 39f1088
1 parent 9c44314
commit 39f1088
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diff --git a/README.md b/README.md
@@ -11,7 +11,7 @@ View Entity Framework Core query plan directly inside Visual Studio.
 
 ## Introduction
 
-With Entity Framework Core query plan debugger visualizer, you can view the query plan of your queries directly inside Visual Studio. Currently, the visualizer supports SQL Server and PostgreSQL.
+With Entity Framework Core query plan debugger visualizer, you can view the query plan of your queries directly inside Visual Studio. Currently, the visualizer supports SQL Server, PostgreSQL and Oracle.
 
 > [!IMPORTANT] 
 > The visualizer requires **Visual Studio Version 17.9.0 ([Released on February 13th](https://devblogs.microsoft.com/visualstudio/visual-studio-2022-17-9-now-available/)) or newer** and supports **EF Core 7 or newer**.
@@ -36,6 +36,10 @@ Click on 'Query Plan Visualizer' and the query plan will be displayed for your q
 
 ![PostgreSQL Plan](doc/PostgreSQLPlan1.png)
 
+### Oracle:
+
+![Oracle Plan](doc/OraclePlan.png)
+
 ## Known Issues:
 
  - If query plan extraction takes more than 5 seconds, you will get [Evaluation timed out error](https://github.com/Giorgi/EFCore.Visualizer/issues/25)

diff --git a/doc/OraclePlan.png b/doc/OraclePlan.png
diff --git a/src/EFCore.Visualizer/EFCore.Visualizer.csproj b/src/EFCore.Visualizer/EFCore.Visualizer.csproj
@@ -11,6 +11,7 @@
     <None Remove="Fonts\fa-solid-900.ttf" />
     <None Remove="QueryPlanUserControl.xaml" />
     <None Remove="Resources\Postgres\template.html" />
+    <None Remove="Resources\Oracle\template.html" />
   </ItemGroup>
 
   <ItemGroup>
@@ -54,6 +55,9 @@
     <Content Include="Resources\SqlServer\*.*">
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>
+    <Content Include="Resources\Oracle\*.*">
+      <IncludeInVSIX>true</IncludeInVSIX>
+    </Content>
   </ItemGroup>
 
   <ItemGroup>

diff --git a/src/EFCore.Visualizer/Resources/Oracle/template.html b/src/EFCore.Visualizer/Resources/Oracle/template.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Query and Execution Plan</title>
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+
+        body {
+            font-family: Arial, sans-serif;
+            background-color: #f4f4f4;
+            margin: 0;
+            padding: 0;
+            overflow-x: hidden; 
+        }
+
+        .container {
+            width: 100%;
+            max-width: 100%; 
+            margin: 0 auto;
+            background: #fff;
+            padding: 5px;
+            border-radius: 5px;
+            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+        }
+
+        .query, .plan {
+            margin-bottom: 5px;
+        }
+
+        .query {
+            margin: 0;
+            padding: 0;
+        }
+
+        pre {
+            white-space: pre; 
+            background: #f0f0f0;
+            border: 1px solid #ddd;
+            padding: 10px;
+            border-radius: 4px;
+            overflow-x: auto; 
+            font-size: 13px;
+            max-width: 100%; 
+            word-wrap: normal; 
+        }
+
+        .line {
+            border-top: 2px solid #000;
+            margin: 2px 0;
+        }
+    </style>
+</head>
+<body>
+
+    <div class="container">
+        <div class="query">
+            <pre id="query"></pre>
+        </div>
+
+        <div class="line"></div>
+
+        <div class="plan">
+            <pre id="plan"></pre>
+        </div>
+    </div>
+
+    <script>
+        function escapeHtml(text) {
+            return text
+                .replace(/&/g, '&amp;')
+                .replace(/</g, '&lt;')
+                .replace(/>/g, '&gt;')
+                .replace(/"/g, '&quot;')
+                .replace(/'/g, '&#039;');
+        }
+
+        function replaceNewlines(text) {
+            return text.replace(/\r\n|\r|\n/g, '<br>');
+        }
+
+        const query = '{query}';
+        const plan = `{plan}`;
+
+        document.getElementById('query').innerHTML = escapeHtml(query);
+        document.getElementById('plan').innerHTML = replaceNewlines(escapeHtml(plan));
+    </script>
+
+</body>
+</html>
diff --git a/src/EFCore.Visualizer/source.extension.vsixmanifest b/src/EFCore.Visualizer/source.extension.vsixmanifest
@@ -8,7 +8,7 @@
     <MoreInfo>https://github.com/Giorgi/EFCore.Visualizer</MoreInfo>
     <GettingStartedGuide>https://github.com/Giorgi/EFCore.Visualizer/blob/main/README.md#usage</GettingStartedGuide>
     <Icon>Images\IconSmall.png</Icon>
-    <Tags>EFCore, SQL Server, PostgreSQL, Visualizer, Query Plan</Tags>
+    <Tags>EFCore, SQL Server, PostgreSQL, Oracle, Visualizer, Query Plan</Tags>
   </Metadata>
   <Installation ExtensionType="VSSDK+VisualStudio.Extensibility">
     <InstallationTarget Version="[17.9, 18.0)" Id="Microsoft.VisualStudio.Community">

diff --git a/src/IQueryableObjectSource/DatabaseProvider.cs b/src/IQueryableObjectSource/DatabaseProvider.cs
@@ -83,4 +83,24 @@ protected override string ExtractPlanInternal(DbCommand command)
     }
 
     internal override string GetPlanDirectory(string baseDirectory) => Path.Combine(baseDirectory, "Postgres");
+}
+
+class OracleDatabaseProvider(DbCommand command) : DatabaseProvider(command)
+{
+    protected override string ExtractPlanInternal(DbCommand command)
+    {
+        command.CommandText = "EXPLAIN PLAN FOR " + command.CommandText;
+        command.ExecuteNonQuery();
+
+        // Querying the execution plan using DBMS_XPLAN
+        command.CommandText = "SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY())";
+        using var reader = command.ExecuteReader();
+
+        // Fetching the plan output
+        var plan = string.Join(Environment.NewLine, reader.Cast<IDataRecord>().Select(r => r.GetString(0)));
+
+        return plan;
+    }
+
+    internal override string GetPlanDirectory(string baseDirectory) => Path.Combine(baseDirectory, "Oracle");
 }
diff --git a/src/IQueryableObjectSource/EFCoreQueryableObjectSource.cs b/src/IQueryableObjectSource/EFCoreQueryableObjectSource.cs
@@ -77,6 +77,7 @@ private static DatabaseProvider GetDatabaseProvider(DbCommand command)
             {
                 "Microsoft.Data.SqlClient.SqlCommand" => new SqlServerDatabaseProvider(command),
                 "Npgsql.NpgsqlCommand" => new PostgresDatabaseProvider(command),
+                "Oracle.ManagedDataAccess.Client.OracleCommand" => new OracleDatabaseProvider(command),
                 _ => null
             };
         }