mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/FindCriteria.cs

   1 //
   2 // Author: Atsushi Enomoto <atsushi@ximian.com>
   3 //
   4 // Copyright (C) 2009 Novell, Inc (http://www.novell.com)
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the
   8 // "Software"), to deal in the Software without restriction, including
   9 // without limitation the rights to use, copy, modify, merge, publish,
  10 // distribute, sublicense, and/or sell copies of the Software, and to
  11 // permit persons to whom the Software is furnished to do so, subject to
  12 // the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 //
  25 using System;
  26 using System.Collections.Generic;
  27 using System.Collections.ObjectModel;
  28 using System.ServiceModel;
  29 using System.ServiceModel.Channels;
  30 using System.ServiceModel.Description;
  31 using System.ServiceModel.Dispatcher;
  32 using System.Xml;
  33 using System.Xml.Schema;
  34 using System.Xml.Linq;
  35
  36 namespace System.ServiceModel.Discovery
  37 {
  38         public class FindCriteria
  39         {
  40                 const string SerializationNS = "http://schemas.microsoft.com/ws/2008/06/discovery";
  41                 const int default_max_results = int.MaxValue;
  42
  43                 public static readonly Uri ScopeMatchByExact = new Uri ("http://schemas.microsoft.com/ws/2008/06/discovery/strcmp0");
  44                 public static readonly Uri ScopeMatchByLdap = new Uri ("http://schemas.microsoft.com/ws/2008/06/discovery/ldap");
  45                 public static readonly Uri ScopeMatchByNone = new Uri ("http://schemas.microsoft.com/ws/2008/06/discovery/none");
  46                 public static readonly Uri ScopeMatchByPrefix = new Uri ("http://schemas.microsoft.com/ws/2008/06/discovery/rfc3986");
  47                 public static readonly Uri ScopeMatchByUuid = new Uri ("http://schemas.microsoft.com/ws/2008/06/discovery/uuid");
  48
  49                 public static FindCriteria CreateMetadataExchangeEndpointCriteria ()
  50                 {
  51                         return CreateMetadataExchangeEndpointCriteria (typeof (IMetadataExchange));
  52                 }
  53
  54                 public static FindCriteria CreateMetadataExchangeEndpointCriteria (IEnumerable<XmlQualifiedName> contractTypeNames)
  55                 {
  56                         var fc = new FindCriteria ();
  57                         foreach (var type in contractTypeNames)
  58                                 fc.ContractTypeNames.Add (type);
  59                         return fc;
  60                 }
  61
  62                 public static FindCriteria CreateMetadataExchangeEndpointCriteria (Type contractType)
  63                 {
  64                         return new FindCriteria (contractType);
  65                 }
  66
  67                 public FindCriteria ()
  68                 {
  69                         ContractTypeNames = new Collection<XmlQualifiedName> ();
  70                         Extensions = new Collection<XElement> ();
  71                         Scopes = new Collection<Uri> ();
  72                         MaxResults = default_max_results;
  73                 }
  74
  75                 public FindCriteria (Type contractType)
  76                         : this ()
  77                 {
  78                         var cd = ContractDescription.GetContract (contractType);
  79                         ContractTypeNames.Add (new XmlQualifiedName (cd.Name, cd.Namespace));
  80                 }
  81
  82                 public Collection<XmlQualifiedName> ContractTypeNames { get; private set; }
  83                 public TimeSpan Duration { get; set; }
  84                 public Collection<XElement> Extensions { get; private set; }
  85                 public int MaxResults { get; set; }
  86                 public Uri ScopeMatchBy { get; set; }
  87                 public Collection<Uri> Scopes { get; private set; }
  88
  89                 [MonoTODO]
  90                 public bool IsMatch (EndpointDiscoveryMetadata endpointDiscoveryMetadata)
  91                 {
  92                         throw new NotImplementedException ();
  93                 }
  94
  95                 internal static FindCriteria ReadXml (XmlReader reader, DiscoveryVersion version)
  96                 {
  97                         if (reader == null)
  98                                 throw new ArgumentNullException ("reader");
  99
 100                         var ret = new FindCriteria ();
 101
 102                         reader.MoveToContent ();
 103                         if (!reader.IsStartElement ("ProbeType", version.Namespace) || reader.IsEmptyElement)
 104                                 throw new XmlException ("Non-empty ProbeType element is expected");
 105                         reader.ReadStartElement ("ProbeType", version.Namespace);
 106
 107                         // standard members
 108                         reader.MoveToContent ();
 109                         bool isEmpty = reader.IsEmptyElement;
 110                         ret.ContractTypeNames = new Collection<XmlQualifiedName> ((XmlQualifiedName []) reader.ReadElementContentAs (typeof (XmlQualifiedName []), null, "Types", version.Namespace));
 111
 112                         reader.MoveToContent ();
 113                         if (!reader.IsStartElement ("Scopes", version.Namespace))
 114                                 throw new XmlException ("Scopes element is expected");
 115                         if (reader.MoveToAttribute ("MatchBy")) {
 116                                 ret.ScopeMatchBy = new Uri (reader.Value, UriKind.RelativeOrAbsolute);
 117                                 reader.MoveToElement ();
 118                         }
 119                         ret.Scopes = new Collection<Uri> ((Uri []) reader.ReadElementContentAs (typeof (Uri []), null, "Scopes", version.Namespace));
 120
 121                         // non-standard members
 122                         for (reader.MoveToContent (); !reader.EOF && reader.NodeType != XmlNodeType.EndElement; reader.MoveToContent ()) {
 123                                 if (reader.NamespaceURI == SerializationNS) {
 124                                         switch (reader.LocalName) {
 125                                         case "MaxResults":
 126                                                 ret.MaxResults = reader.ReadElementContentAsInt ();
 127                                                 break;
 128                                         case "Duration":
 129                                                 ret.Duration = (TimeSpan) reader.ReadElementContentAs (typeof (TimeSpan), null);
 130                                                 break;
 131                                         }
 132                                 }
 133                                 else
 134                                         ret.Extensions.Add (XElement.Load (reader));
 135                         }
 136
 137                         reader.ReadEndElement ();
 138
 139                         return ret;
 140                 }
 141
 142                 internal void WriteXml (XmlWriter writer, DiscoveryVersion version)
 143                 {
 144                         if (writer == null)
 145                                 throw new ArgumentNullException ("writer");
 146
 147                         writer.WriteStartElement ("ProbeType", version.Namespace);
 148
 149                         // standard members
 150                         writer.WriteStartElement ("d", "Types", version.Namespace);
 151                         int p = 0;
 152                         foreach (var qname in ContractTypeNames)
 153                                 if (writer.LookupPrefix (qname.Namespace) == null)
 154                                         writer.WriteAttributeString ("xmlns", "p" + p++, "http://www.w3.org/2000/xmlns/", qname.Namespace);
 155                         writer.WriteValue (ContractTypeNames);
 156                         writer.WriteEndElement ();
 157
 158                         writer.WriteStartElement ("Scopes", version.Namespace);
 159                         if (ScopeMatchBy != null) {
 160                                 writer.WriteStartAttribute ("MatchBy");
 161                                 writer.WriteValue (ScopeMatchBy);
 162                                 writer.WriteEndAttribute ();
 163                         }
 164                         writer.WriteValue (Scopes);
 165                         writer.WriteEndElement ();
 166
 167                         // non-standard members
 168                         if (MaxResults != default_max_results) {
 169                                 writer.WriteStartElement ("MaxResults", SerializationNS);
 170                                 writer.WriteValue (MaxResults);
 171                                 writer.WriteEndElement ();
 172                         }
 173                         writer.WriteStartElement ("Duration", SerializationNS);
 174                         writer.WriteValue (Duration);
 175                         writer.WriteEndElement ();
 176
 177                         foreach (var ext in Extensions)
 178                                 ext.WriteTo (writer);
 179
 180                         writer.WriteEndElement ();
 181                 }
 182
 183                 internal static XmlSchema BuildSchema (DiscoveryVersion version)
 184                 {
 185                         var schema = new XmlSchema () { TargetNamespace = version.Namespace };
 186
 187                         var anyAttr = new XmlSchemaAnyAttribute () { Namespace = "##other", ProcessContents = XmlSchemaContentProcessing.Lax };
 188
 189                         var probePart = new XmlSchemaSequence ();
 190                         probePart.Items.Add (new XmlSchemaElement () { RefName = new XmlQualifiedName ("Types", version.Namespace), MinOccurs = 0 });
 191                         probePart.Items.Add (new XmlSchemaElement () { RefName = new XmlQualifiedName ("Scopes", version.Namespace), MinOccurs = 0 });
 192                         probePart.Items.Add (new XmlSchemaAny () { MinOccurs = 0, MaxOccursString = "unbounded", Namespace = "##other", ProcessContents = XmlSchemaContentProcessing.Lax });
 193                         var ct = new XmlSchemaComplexType () { Name = "ProbeType", Particle = probePart, AnyAttribute = anyAttr };
 194                         schema.Items.Add (ct);
 195
 196                         schema.Items.Add (new XmlSchemaSimpleType () { Name = "QNameListType", Content = new XmlSchemaSimpleTypeList () { ItemTypeName = new XmlQualifiedName ("QName", XmlSchema.Namespace) } });
 197
 198                         var scr = new XmlSchemaSimpleContentRestriction () { BaseTypeName = new XmlQualifiedName ("UriListType", version.Namespace), AnyAttribute = anyAttr };
 199                         scr.Attributes.Add (new XmlSchemaAttribute () { Name = "matchBy", SchemaTypeName = new XmlQualifiedName ("anyURI", XmlSchema.Namespace) });
 200                         schema.Items.Add (new XmlSchemaComplexType () { Name = "ScopesType", ContentModel = new XmlSchemaSimpleContent () { Content = scr } });
 201
 202                         schema.Items.Add (new XmlSchemaSimpleType () { Name = "UriListType", Content = new XmlSchemaSimpleTypeList () { ItemTypeName = new XmlQualifiedName ("anyURI", XmlSchema.Namespace) } });
 203
 204                         schema.Items.Add (new XmlSchemaElement () { Name = "Types", SchemaTypeName = new XmlQualifiedName ("QNameListType", version.Namespace) });
 205                         schema.Items.Add (new XmlSchemaElement () { Name = "Scopes", SchemaTypeName = new XmlQualifiedName ("ScopesType", version.Namespace) });
 206
 207                         return schema;
 208                 }
 209         }
 210 }