Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Services/System/Web/Services/WebServiceAttribute.cs

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+//------------------------------------------------------------------------------
+// <copyright file="WebServiceAttribute.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.Services {
+
+    using System;
+    using System.Web.Services.Protocols;
+
+    /// <include file='doc\WebServiceAttribute.uex' path='docs/doc[@for="WebServiceAttribute"]/*' />
+    /// <devdoc>
+    ///    <para> The WebService attribute may be used to add additional information to a
+    ///       Web Service, such as a string describing its functionality. The attribute is not required for a Web Service to
+    ///       be published and executed.</para>
+    /// </devdoc>
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface)]
+    public sealed class WebServiceAttribute : Attribute {
+        string description;
+        string ns = DefaultNamespace;
+        string name;
+
+        /// <include file='doc\WebServiceAttribute.uex' path='docs/doc[@for="WebServiceAttribute.WebServiceAttribute"]/*' />
+        /// <devdoc>
+        ///    Initializes a new instance of the <see cref='System.Web.Services.WebServiceAttribute'/> class.
+        /// </devdoc>
+        public WebServiceAttribute() {
+        }
+
+        /// <include file='doc\WebServiceAttribute.uex' path='docs/doc[@for="WebServiceAttribute.Description"]/*' />
+        /// <devdoc>
+        ///    A descriptive message for the Web Service. The message
+        ///    is used when generating description documents for the Web Service, such as the
+        ///    Sevice Contract and the Service Description page.
+        /// </devdoc>
+        public string Description {
+            get {
+                return (description == null) ? string.Empty : description;
+            }
+
+            set {
+                description = value;
+            }
+        }
+
+        /// <include file='doc\WebServiceAttribute.uex' path='docs/doc[@for="WebServiceAttribute.Namespace"]/*' />
+        /// <devdoc>
+        /// The default XML namespace to use for the web service.
+        /// </devdoc>
+        public string Namespace {
+            get {
+                return ns;
+            }
+            set {
+                ns = value;
+            }
+        }
+
+        /// <include file='doc\WebServiceAttribute.uex' path='docs/doc[@for="WebServiceAttribute.Name"]/*' />
+        /// <devdoc>
+        /// The name to use for the web service in the service description.
+        /// </devdoc>
+        public string Name {
+            get {
+                return name == null ? string.Empty : name;
+            }
+            set {
+                name = value;
+            }
+        }
+
+        /// <include file='doc\WebServiceAttribute.uex' path='docs/doc[@for="WebServiceAttribute.DefaultNamespace"]/*' />
+        /// <devdoc>
+        /// The default value for the XmlNamespace property.
+        /// </devdoc>
+        public const string DefaultNamespace = "http://tempuri.org/";
+    }
+
+    internal class WebServiceReflector {
+        private WebServiceReflector() { }
+        internal static WebServiceAttribute GetAttribute(Type type) {
+            object[] attrs = type.GetCustomAttributes(typeof(WebServiceAttribute), false);
+            if (attrs.Length == 0) return new WebServiceAttribute();
+            return (WebServiceAttribute)attrs[0];
+        }
+
+        internal static WebServiceAttribute GetAttribute(LogicalMethodInfo[] methodInfos) {
+            if (methodInfos.Length == 0) return new WebServiceAttribute();
+            Type mostDerived = GetMostDerivedType(methodInfos);
+            return GetAttribute(mostDerived);
+        }
+
+        internal static Type GetMostDerivedType(LogicalMethodInfo[] methodInfos) {
+            if (methodInfos.Length == 0) return null;
+            Type mostDerived = methodInfos[0].DeclaringType;
+            for (int i = 1; i < methodInfos.Length; i++) {
+                Type derived = methodInfos[i].DeclaringType;
+                if (derived.IsSubclassOf(mostDerived)) {
+                    mostDerived = derived;
+                }
+            }
+            return mostDerived;
+        }
+    }
+}