mcs/class/System.XML/System.Xml.Schema/XmlSchemaGroupBase.cs

   1 //
   2 // XmlSchemaGroupBase.cs
   3 //
   4 // Authors:
   5 //      Dwivedi, Ajay kumar Adwiv@Yahoo.com
   6 //      Atsushi Enomoto atsushi@ximian.com
   7 //
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Xml.Serialization;
  31
  32 namespace System.Xml.Schema
  33 {
  34         public abstract class XmlSchemaGroupBase : XmlSchemaParticle
  35         {
  36                 private XmlSchemaObjectCollection compiledItems;
  37
  38                 protected XmlSchemaGroupBase ()
  39                 {
  40                         compiledItems = new XmlSchemaObjectCollection ();
  41                 }
  42
  43                 [XmlIgnore]
  44                 public abstract XmlSchemaObjectCollection Items { get; }
  45
  46                 internal XmlSchemaObjectCollection CompiledItems
  47                 {
  48                         get{ return compiledItems; }
  49                 }
  50
  51                 internal void CopyOptimizedItems (XmlSchemaGroupBase gb)
  52                 {
  53                         for (int i = 0; i < Items.Count; i++) {
  54                                 XmlSchemaParticle p = Items [i] as XmlSchemaParticle;
  55                                 p = p.GetOptimizedParticle (false);
  56                                 if (p == XmlSchemaParticle.Empty)
  57                                         continue;
  58                                 gb.Items.Add (p);
  59                                 gb.CompiledItems.Add (p);
  60                         }
  61                 }
  62
  63                 internal override bool ParticleEquals (XmlSchemaParticle other)
  64                 {
  65                         XmlSchemaGroupBase gb = other as XmlSchemaGroupBase;
  66                         if (gb == null)
  67                                 return false;
  68                         if (this.GetType () != gb.GetType ())
  69                                 return false;
  70
  71                         if (this.ValidatedMaxOccurs != gb.ValidatedMaxOccurs ||
  72                                 this.ValidatedMinOccurs != gb.ValidatedMinOccurs)
  73                                 return false;
  74                         if (this.CompiledItems.Count != gb.CompiledItems.Count)
  75                                 return false;
  76                         for (int i = 0; i < CompiledItems.Count; i++) {
  77                                 XmlSchemaParticle p1 = this.CompiledItems [i] as XmlSchemaParticle;
  78                                 XmlSchemaParticle p2 = gb.CompiledItems [i] as XmlSchemaParticle;
  79                                 if (!p1.ParticleEquals (p2))
  80                                         return false;
  81                         }
  82                         return true;
  83                 }
  84
  85                 internal override void CheckRecursion (int depth, ValidationEventHandler h, XmlSchema schema)
  86                 {
  87                         foreach (XmlSchemaParticle p in this.Items)
  88                                 p.CheckRecursion (depth, h, schema);
  89                 }
  90
  91                 internal bool ValidateNSRecurseCheckCardinality (XmlSchemaAny any,
  92                         ValidationEventHandler h, XmlSchema schema, bool raiseError)
  93                 {
  94                         foreach (XmlSchemaParticle p in Items)
  95                                 if (!p.ValidateDerivationByRestriction (any, h, schema, raiseError))
  96                                         return false;
  97                         return ValidateOccurenceRangeOK (any, h, schema, raiseError);
  98                 }
  99
 100                 internal bool ValidateRecurse (XmlSchemaGroupBase baseGroup,
 101                         ValidationEventHandler h, XmlSchema schema, bool raiseError)
 102                 {
 103                         return ValidateSeqRecurseMapSumCommon (baseGroup, h, schema, false, false, raiseError);
 104                 }
 105
 106                 internal bool ValidateSeqRecurseMapSumCommon (XmlSchemaGroupBase baseGroup,
 107                         ValidationEventHandler h, XmlSchema schema, bool isLax, bool isMapAndSum, bool raiseError)
 108                 {
 109                         int index = 0;
 110                         int baseIndex = 0;
 111                         decimal baseOccured = 0;
 112                         if (baseGroup.CompiledItems.Count == 0 && this.CompiledItems.Count > 0) {
 113                                 if (raiseError)
 114                                         error (h, "Invalid particle derivation by restriction was found. base particle does not contain particles.");
 115                                 return false;
 116                         }
 117
 118                         for (int i = 0; i < CompiledItems.Count; i++) {
 119                                 // get non-empty derived particle
 120                                 XmlSchemaParticle pd = null;
 121                                 while (this.CompiledItems.Count > index) {
 122                                         pd = ((XmlSchemaParticle) this.CompiledItems [index]);//.GetOptimizedParticle (false);
 123                                         if (pd != XmlSchemaParticle.Empty)// && pd.ValidatedMaxOccurs > 0)
 124                                                 break;
 125                                         else
 126                                                 index++;
 127                                 }
 128                                 if (index >= CompiledItems.Count) {
 129                                         if (raiseError)
 130                                                 error (h, "Invalid particle derivation by restriction was found. Cannot be mapped to base particle.");
 131                                         return false;
 132                                 }
 133
 134                                 // get non-empty base particle
 135                                 XmlSchemaParticle pb = null;
 136                                 while (baseGroup.CompiledItems.Count > baseIndex) {
 137                                         pb = ((XmlSchemaParticle) baseGroup.CompiledItems [baseIndex]);//.GetOptimizedParticle (false);
 138                                         if (pb == XmlSchemaParticle.Empty && pb.ValidatedMaxOccurs > 0)
 139                                                 continue;
 140                                         if (!pd.ValidateDerivationByRestriction (pb, h, schema, false)) {
 141                                                 if (!isLax && !isMapAndSum && pb.MinOccurs > baseOccured && !pb.ValidateIsEmptiable ()) {
 142                                                         if (raiseError)
 143                                                                 error (h, "Invalid particle derivation by restriction was found. Invalid sub-particle derivation was found.");
 144                                                         return false;
 145                                                 }
 146                                                 else {
 147                                                         baseOccured = 0;
 148                                                         baseIndex++;
 149                                                 }
 150                                         } else {
 151                                                 baseOccured += pb.ValidatedMinOccurs;
 152                                                 if (baseOccured >= baseGroup.ValidatedMaxOccurs) {
 153                                                         baseOccured = 0;
 154                                                         baseIndex++;
 155                                                 }
 156                                                 index++;
 157                                                 break;
 158                                         }
 159                                 }
 160                         }
 161                         if (this.CompiledItems.Count > 0 && index != this.CompiledItems.Count) {
 162                                 if (raiseError)
 163                                         error (h, "Invalid particle derivation by restriction was found. Extraneous derived particle was found.");
 164                                 return false;
 165                         }
 166                         if (!isLax && !isMapAndSum) {
 167                                 if (baseOccured > 0)
 168                                         baseIndex++;
 169                                 for (int i = baseIndex; i < baseGroup.CompiledItems.Count; i++) {
 170                                         XmlSchemaParticle p = baseGroup.CompiledItems [i] as XmlSchemaParticle;
 171                                         if (!p.ValidateIsEmptiable ()) {
 172                                                 if (raiseError)
 173                                                         error (h, "Invalid particle derivation by restriction was found. There is a base particle which does not have mapped derived particle and is not emptiable.");
 174                                                 return false;
 175                                         }
 176                                 }
 177                         }
 178                         return true;
 179                 }
 180         }
 181 }