/// <summary>
/// Verify the code rule
/// </summary>
/// <param name="context">Service context</param>
/// <param name="info">out parameter to return violation information when rule fail</param>
/// <returns>true if rule passes; false otherwise</returns>
public override bool?Verify(ServiceContext context, out ExtensionRuleViolationInfo info)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
bool?passed = null;
info = null;
//1-get the data service namespace name (try 1st property?)
string dsns = ResourcePathHelper.GetDataServiceNamespace(XElement.Parse(context.ResponsePayload));
//2-get names of the properties of the involved entity type
// ensure they are all unique to protect from repetitive type inheritance declarations in metadata documents
string[] propertyNames = XmlHelper.GetProperties(context.MetadataDocument, context.EntityTypeShortName).Distinct().ToArray();
if (context.Projection)
{
List <string> aa = new List <string>();
var queries = HttpUtility.ParseQueryString(context.Destination.Query);
var qSelect = queries["$select"];
var selects = qSelect.Split(new char[] { ',', ' ' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var sel in selects)
{
var propName = propertyNames.FirstOrDefault(x => sel.Equals(x, StringComparison.OrdinalIgnoreCase));
if (!string.IsNullOrEmpty(propName))
{
aa.Add(propName);
}
}
propertyNames = aa.ToArray();
}
//3-craft the rng
StringBuilder sb = new StringBuilder();
foreach (var p in propertyNames)
{
sb.AppendFormat(rngProperty, p);
}
string schema = string.Format(rngSchema, dsns, sb.ToString());
//4-surrender it under rng validator
RngVerifier verifier = new RngVerifier(schema);
TestResult result;
passed = verifier.Verify(context, out result);
if (passed.Value)
{
info = new ExtensionRuleViolationInfo(this.ErrorMessage, context.Destination, context.ResponsePayload, result.LineNumberInError);
}
return(passed);
}
/// <summary>
/// Verify rule logic
/// </summary>
/// <param name="context">Service context</param>
/// <param name="info">out parameter to return violation information when rule fail</param>
/// <returns>true if rule passes; false otherwise</returns>
public override bool?Verify(ServiceContext context, out ExtensionRuleViolationInfo info)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
bool?passed = null;
info = null;
// get the list of navigation properties of the interesting entity type
var edmxHelper = new EdmxHelper(XElement.Parse(context.MetadataDocument));
EntityType et;
edmxHelper.TryGetItem(context.EntityTypeFullName, out et);
var navProps = et.NavigationProperties.Select(x => x.Name);
// find out the data service namespace; falling back the implcit one if none exists
string dsns = ResourcePathHelper.GetDataServiceNamespace(XElement.Parse(context.ResponsePayload));
// get the relaxNG schema and verify the payload
var rngNavLinks = navProps.Select(x => string.Format(tmplRngNavLink, dsns, x));
var rng = string.Format(tmplRngSchema, string.Join(string.Empty, rngNavLinks), RngCommonPattern.CommonPatterns);
RngVerifier verifier = new RngVerifier(rng);
TestResult result;
passed = verifier.Verify(context, out result);
if (!passed.Value)
{
info = new ExtensionRuleViolationInfo(this.ErrorMessage, context.Destination, context.ResponsePayload, result.LineNumberInError);
}
return(passed);
}