24787695133

Committed 22 Apr 2026 03:40PM UTC coverage: 77.131% (+0.06%) from 77.076%

Build # 24787695133

Build Type

Pull #1041

github

Committed by

web-flow

Commit Message

Merge a09f177c0 into 98bd2e4f4

Pull Request Pull Request #1041: issue-1035 Add progress reporting to CAD file reading process

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8459 of 11919 branches covered (70.97%)

Branch coverage included in aggregate %.

332 of 385 new or added lines in 12 files covered. (86.23%)

8 existing lines in 3 files now uncovered.

30462 of 38542 relevant lines covered (79.04%)

153328.47 hits per line

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75.0

/src/ACadSharp/IO/CadReaderFactory.cs

﻿using System;
using System.IO;

namespace ACadSharp.IO;

/// <summary>
/// Provides factory methods for creating CAD file readers based on file format.
/// </summary>
/// <remarks>Use this class to obtain an appropriate ICadReader instance for supported CAD file types such as DWG
/// and DXF. The factory selects the correct reader implementation based on the file extension. This class does not
/// validate file existence or content; it only inspects the file extension.</remarks>
public static class CadReaderFactory
{
        /// <summary>
        /// Creates an <see cref="ICadReader"/> instance for the specified CAD file format.
        /// </summary>
        /// <remarks>Supported file formats include DWG and DXF. The method selects the appropriate reader based on the
        /// file extension.</remarks>
        /// <param name="filename">The path to the CAD file to read. The file extension determines the reader type. Must not be null or empty.</param>
        /// <param name="notification">An optional event handler for receiving notifications during the reading process. Can be null if no notifications
        /// are needed.</param>
        /// <returns>An <see cref="ICadReader"/> instance capable of reading the specified CAD file.</returns>
        /// <exception cref="NotSupportedException">Thrown if the file extension is not supported.</exception>
        public static ICadReader CreateReader(string filename, NotificationEventHandler notification = null)
        {
                switch (GetFileFormat(filename))
                {
                        case CadFileFormat.DWG:
                                return new DwgReader(filename, notification);
                        case CadFileFormat.DXF:
                                return new DxfReader(filename, notification);
                        case CadFileFormat.Unknown:
                        default:
                                throw new NotSupportedException($"Extension {Path.GetExtension(filename)} is not supported.");
                }
        }

        /// <summary>
        /// Determines the CAD file format based on the file extension of the specified filename.
        /// </summary>
        /// <remarks>The method does not validate whether the file exists or whether the file content matches the
        /// extension. Only the file extension is considered when determining the format.</remarks>
        /// <param name="filename">The path or name of the file whose format is to be identified. The file extension is used to determine the format.</param>
        /// <returns>A value of the CadFileFormat enumeration that corresponds to the file's extension. Returns  <see cref="CadFileFormat.DWG"/> for
        /// ".dwg" files,  <see cref="CadFileFormat.DXF"/> for ".dxf" files, or <see cref="CadFileFormat.Unknown"/> if the extension is not recognized.</returns>
        public static CadFileFormat GetFileFormat(string filename)
        {
                switch (Path.GetExtension(filename))
                {
                        case ".dwg":
                                return CadFileFormat.DWG;
                        case ".dxf":
                                return CadFileFormat.DXF;
                        default:
                                return CadFileFormat.Unknown;
                }
        }
}

1	using System;
2	using System.IO;
3
4	namespace ACadSharp.IO;
5
6	/// <summary>
7	/// Provides factory methods for creating CAD file readers based on file format.
8	/// </summary>
9	/// <remarks>Use this class to obtain an appropriate ICadReader instance for supported CAD file types such as DWG
10	/// and DXF. The factory selects the correct reader implementation based on the file extension. This class does not
11	/// validate file existence or content; it only inspects the file extension.</remarks>
12	public static class CadReaderFactory
13	{
14	/// <summary>
15	/// Creates an <see cref="ICadReader"/> instance for the specified CAD file format.
16	/// </summary>
17	/// <remarks>Supported file formats include DWG and DXF. The method selects the appropriate reader based on the
18	/// file extension.</remarks>
19	/// <param name="filename">The path to the CAD file to read. The file extension determines the reader type. Must not be null or empty.</param>
20	/// <param name="notification">An optional event handler for receiving notifications during the reading process. Can be null if no notifications
21	/// are needed.</param>
22	/// <returns>An <see cref="ICadReader"/> instance capable of reading the specified CAD file.</returns>
23	/// <exception cref="NotSupportedException">Thrown if the file extension is not supported.</exception>
24	public static ICadReader CreateReader(string filename, NotificationEventHandler notification = null)
25	{	133✔
26	switch (GetFileFormat(filename))	133!
27	{
28	case CadFileFormat.DWG:
29	return new DwgReader(filename, notification);	49✔
30	case CadFileFormat.DXF:
31	return new DxfReader(filename, notification);	84✔
32	case CadFileFormat.Unknown:
33	default:
NEW 34	throw new NotSupportedException($"Extension {Path.GetExtension(filename)} is not supported.");	×
35	}
36	}	133✔
37
38	/// <summary>
39	/// Determines the CAD file format based on the file extension of the specified filename.
40	/// </summary>
41	/// <remarks>The method does not validate whether the file exists or whether the file content matches the
42	/// extension. Only the file extension is considered when determining the format.</remarks>
43	/// <param name="filename">The path or name of the file whose format is to be identified. The file extension is used to determine the format.</param>
44	/// <returns>A value of the CadFileFormat enumeration that corresponds to the file's extension. Returns <see cref="CadFileFormat.DWG"/> for
45	/// ".dwg" files, <see cref="CadFileFormat.DXF"/> for ".dxf" files, or <see cref="CadFileFormat.Unknown"/> if the extension is not recognized.</returns>
46	public static CadFileFormat GetFileFormat(string filename)
47	{	133✔
48	switch (Path.GetExtension(filename))	133!
49	{
50	case ".dwg":
51	return CadFileFormat.DWG;	49✔
52	case ".dxf":
53	return CadFileFormat.DXF;	84✔
54	default:
NEW 55	return CadFileFormat.Unknown;	×
56	}
57	}	133✔
58	}

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