feat: Implement ExistingDatabaseContext for managing existing databases with customizable naming strategies and auto-discovery of entities

feat: Add SqlServerSchemaProvider for extracting database schema information from SQL Server feat: Introduce DatabaseType and NamingStrategy enums for better database management and naming conventions feat: Create IDatabaseDiscovery and IDatabaseManager interfaces for database operations and metadata retrieval feat: Develop REST service client architecture with BaseRestServiceClient and SAP Business One specific implementation feat: Implement REST service discovery page with UI for connecting to SAP Business One Service Layer and displaying discovered entities
2025-04-29 00:16:03 +02:00
parent d1103c4e7d
commit 7346db3b63
22 changed files with 758 additions and 1 deletions
@@ -0,0 +1,108 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.SqlClient;
+using System.Threading.Tasks;
+using DataConnection.Interfaces;
+using Microsoft.Data.SqlClient;
+
+namespace DataConnection.EF.DatabaseDiscovery;
+
+/// <summary>
+/// Implementazione di IDatabaseDiscovery per SQL Server
+/// </summary>
+public class SqlServerDatabaseDiscovery : IDatabaseDiscovery
+{
+    private static readonly List<string> _systemDatabases = new List<string> 
+    { 
+        "master", "tempdb", "model", "msdb", "distribution" 
+    };
+    
+    public async Task<List<string>> GetAvailableDatabasesAsync(string serverConnectionString, bool excludeSystemDatabases = true)
+    {
+        List<string> databases = new List<string>();
+        
+        using (SqlConnection connection = new SqlConnection(serverConnectionString))
+        {
+            await connection.OpenAsync();
+            
+            // Query per ottenere tutti i database sul server
+            string query = @"
+                SELECT name
+                FROM sys.databases
+                WHERE state_desc = 'ONLINE'";
+                
+            if (excludeSystemDatabases)
+            {
+                query += " AND name NOT IN ('master', 'tempdb', 'model', 'msdb', 'distribution')";
+            }
+            
+            query += " ORDER BY name";
+            
+            using (SqlCommand command = new SqlCommand(query, connection))
+            {
+                using (SqlDataReader reader = await command.ExecuteReaderAsync())
+                {
+                    while (await reader.ReadAsync())
+                    {
+                        databases.Add(reader.GetString(0));
+                    }
+                }
+            }
+        }
+        
+        return databases;
+    }
+    
+    public async Task<Dictionary<string, DatabaseInfo>> GetDatabasesInfoAsync(string serverConnectionString, bool excludeSystemDatabases = true)
+    {
+        Dictionary<string, DatabaseInfo> databasesInfo = new Dictionary<string, DatabaseInfo>();
+        
+        using (SqlConnection connection = new SqlConnection(serverConnectionString))
+        {
+            await connection.OpenAsync();
+            
+            // Query per ottenere informazioni dettagliate sui database
+            string query = @"
+                SELECT 
+                    d.name,
+                    CAST((SELECT SUM(CAST(size AS BIGINT)) * 8.0 / 1024 FROM sys.master_files WHERE database_id = d.database_id) AS DECIMAL(18,2)) AS size_mb,
+                    d.create_date,
+                    d.state_desc,
+                    SUSER_SNAME(d.owner_sid) AS owner,
+                    CASE WHEN d.name IN ('master', 'tempdb', 'model', 'msdb', 'distribution') THEN 1 ELSE 0 END AS is_system_db
+                FROM sys.databases d
+                WHERE state_desc = 'ONLINE'";
+                
+            if (excludeSystemDatabases)
+            {
+                query += " AND d.name NOT IN ('master', 'tempdb', 'model', 'msdb', 'distribution')";
+            }
+            
+            query += " ORDER BY d.name";
+            
+            using (SqlCommand command = new SqlCommand(query, connection))
+            {
+                using (SqlDataReader reader = await command.ExecuteReaderAsync())
+                {
+                    while (await reader.ReadAsync())
+                    {
+                        string dbName = reader.GetString(0);
+                        
+                        databasesInfo[dbName] = new DatabaseInfo
+                        {
+                            Name = dbName,
+                            SizeMB = reader.IsDBNull(1) ? 0 : Convert.ToDouble(reader.GetDecimal(1)),
+                            CreationDate = reader.GetDateTime(2),
+                            Status = reader.GetString(3),
+                            Owner = reader.IsDBNull(4) ? null : reader.GetString(4),
+                            IsSystemDatabase = reader.GetInt32(5) == 1
+                        };
+                    }
+                }
+            }
+        }
+        
+        return databasesInfo;
+    }
+}