Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.IdentityModel/System/IdentityModel/Claims/DefaultClaimSet.cs

@@ -0,0 +1,107 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.IdentityModel.Claims
+{
+    using System.Collections;
+    using System.Collections.Generic;
+    using System.Runtime.Serialization;
+
+    [DataContract(Namespace = XsiConstants.Namespace)]
+    public class DefaultClaimSet : ClaimSet
+    {
+        [DataMember(Name = "Issuer")]
+        ClaimSet issuer;
+        [DataMember(Name = "Claims")]
+        IList<Claim> claims;
+
+        public DefaultClaimSet(params Claim[] claims)
+        {
+            Initialize(this, claims);
+        }
+
+        public DefaultClaimSet(IList<Claim> claims)
+        {
+            Initialize(this, claims);
+        }
+
+        public DefaultClaimSet(ClaimSet issuer, params Claim[] claims)
+        {
+            Initialize(issuer, claims);
+        }
+
+        public DefaultClaimSet(ClaimSet issuer, IList<Claim> claims)
+        {
+            Initialize(issuer, claims);
+        }
+
+        public override Claim this[int index] 
+        {
+            get { return this.claims[index]; }
+        }
+
+        public override int Count
+        {
+            get { return this.claims.Count; }
+        }
+
+        public override ClaimSet Issuer
+        {
+            get { return this.issuer; }
+        }
+
+        public override bool ContainsClaim(Claim claim)
+        {
+            if (claim == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("claim");
+
+            for (int i = 0; i < this.claims.Count; ++i)
+            {
+                if (claim.Equals(this.claims[i]))
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        public override IEnumerable<Claim> FindClaims(string claimType, string right)
+        {
+            bool anyClaimType = (claimType == null);
+            bool anyRight = (right == null);
+
+            for (int i = 0; i < this.claims.Count; ++i)
+            {
+                Claim claim = this.claims[i];
+                if ((claim != null) &&
+                    (anyClaimType || claimType == claim.ClaimType) &&
+                    (anyRight || right == claim.Right))
+                {
+                    yield return claim;
+                }
+            }
+        }
+
+        public override IEnumerator<Claim> GetEnumerator()
+        {
+            return this.claims.GetEnumerator();
+        }
+
+        protected void Initialize(ClaimSet issuer, IList<Claim> claims)
+        {
+            if (issuer == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("issuer");
+            if (claims == null)
+                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("claims");
+
+            this.issuer = issuer;
+            this.claims = claims;
+        }
+
+        public override string ToString()
+        {
+            return SecurityUtils.ClaimSetToString(this);
+        }
+    }
+}