XmlSchemaAttributeGroupRef.cs :  » 2.6.4-mono-.net-core » System.Xml » System » Xml » Schema » C# / CSharp Open Source

//
// System.Xml.Schema.XmlSchemaAttributeGroupRef.cs
//
// Author:
//  Dwivedi, Ajay kumar  Adwiv@Yahoo.com
//  Atsushi Enomoto  ginga@kit.hi-ho.ne.jp
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Xml;
using System.Xml.Serialization;

namespace System.Xml.Schema{
  /// <summary>
  /// Summary description for XmlSchemaAttributeGroupRef.
  /// </summary>
  public class XmlSchemaAttributeGroupRef : XmlSchemaAnnotated
  {
    private XmlQualifiedName refName;
    const string xmlname = "attributeGroup";

    public XmlSchemaAttributeGroupRef()
    {
      refName = XmlQualifiedName.Empty;
    }
    
    [System.Xml.Serialization.XmlAttribute("ref")]
    public XmlQualifiedName RefName 
    {
      get{ return  refName; }
      set{ refName = value; }
    }

    /// <remarks>
    /// 1. ref must be present
    /// </remarks>
    internal override int Compile(ValidationEventHandler h, XmlSchema schema)
    {
      // If this is already compiled this time, simply skip.
      if (CompilationId == schema.CompilationId)
        return 0;

      errorCount = 0;
      if(RefName == null || RefName.IsEmpty)
        error(h, "ref must be present");
      else if(!XmlSchemaUtil.CheckQName(RefName))
        error(h, "ref must be a valid qname");

      XmlSchemaUtil.CompileID(Id,this, schema.IDCollection,h);

      this.CompilationId = schema.CompilationId;
      return errorCount;
    }
    
    internal override int Validate(ValidationEventHandler h, XmlSchema schema)
    {
      return errorCount;
    }

    //<attributeGroup
    //  id = ID
    //  ref = QName
    //  {any attributes with non-schema namespace . . .}>
    //  Content: (annotation?)
    //</attributeGroup>
    internal static XmlSchemaAttributeGroupRef Read(XmlSchemaReader reader, ValidationEventHandler h)
    {
      XmlSchemaAttributeGroupRef attrgrp = new XmlSchemaAttributeGroupRef();
      reader.MoveToElement();

      if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
      {
        error(h,"Should not happen :1: XmlSchemaAttributeGroupRef.Read, name="+reader.Name,null);
        reader.SkipToEnd();
        return null;
      }

      attrgrp.LineNumber = reader.LineNumber;
      attrgrp.LinePosition = reader.LinePosition;
      attrgrp.SourceUri = reader.BaseURI;

      while(reader.MoveToNextAttribute())
      {
        if(reader.Name == "id")
        {
          attrgrp.Id = reader.Value;
        }
        else if(reader.Name == "ref")
        {
          Exception innerex;
          attrgrp.refName = XmlSchemaUtil.ReadQNameAttribute(reader,out innerex);
          if(innerex != null)
            error(h, reader.Value + " is not a valid value for ref attribute",innerex);
        }
        else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
        {
          error(h,reader.Name + " is not a valid attribute for attributeGroup in this context",null);
        }
        else
        {
          XmlSchemaUtil.ReadUnhandledAttribute(reader,attrgrp);
        }
      }
      
      reader.MoveToElement();
      if(reader.IsEmptyElement)
        return attrgrp;
      int level = 1;

      while(reader.ReadNextElement())
      {
        if(reader.NodeType == XmlNodeType.EndElement)
        {
          if(reader.LocalName != xmlname)
            error(h,"Should not happen :2: XmlSchemaAttributeGroupRef.Read, name="+reader.Name,null);
          break;
        }
        if(level <= 1 && reader.LocalName == "annotation")
        {
          level = 2; //Only one annotation
          XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
          if(annotation != null)
            attrgrp.Annotation = annotation;
          continue;
        }
        reader.RaiseInvalidElementError();
      }
      return attrgrp;
    }
  }
}