初始化

lib/hj_utils/dns_solve/exception.dart

@@ -0,0 +1,42 @@
+/// An abstract class representing an exception related to DNS solving.
+///
+/// This serves as a base class for exceptions that may occur during DNS
+/// resolution or parsing operations.
+abstract class DNSolveException implements Exception {
+  const DNSolveException();
+}
+
+/// Represents an [Exception] that occured while processing an DNS request.
+///
+/// It contains information about the status code, headers, and body of the
+/// response.
+class ResponseException extends DNSolveException {
+  const ResponseException({
+    required this.statusCode,
+    required this.headers,
+    required this.body,
+  }) : super();
+
+  /// The status code of the response.
+  final int statusCode;
+
+  /// The headers of the response.
+  final Map<String, String> headers;
+
+  /// The body of the response.
+  final String body;
+
+  @override
+  String toString() =>
+      '''Exception(Status Code: $statusCode, Response Headers: $headers, Response Body: $body)''';
+}
+
+/// An exception indicating that an error occurred while parsing or processing a
+/// Service (SRV) record.
+///
+/// This is a specific type of [DNSolveException].
+class SRVRecordFormatException extends DNSolveException {
+  const SRVRecordFormatException(this.message);
+
+  final String message;
+}