private bool ReadResourceFromRecord(object record)
{
this.item = ODataAvroConvert.ToODataEntry(record as AvroRecord);
if (record == null)
{
this.state = ODataReaderState.Exception;
return(false);
}
return(true);
}
public override bool Read()
{
switch (this.state)
{
case ODataReaderState.Start:
if (this.currentObject == null)
{
if (!this.reader.MoveNext())
{
this.state = ODataReaderState.Exception;
return(false);
}
this.currentObject = this.reader.Current;
}
this.state = readingFeed
? ODataReaderState.FeedStart
: ODataReaderState.EntryStart;
break;
case ODataReaderState.FeedStart:
this.item = new ODataFeed();
var objs = this.currentObject as object[];
if (objs == null)
{
this.state = ODataReaderState.Exception;
return(false);
}
this.recordEnumerator = objs.GetEnumerator();
this.state = (this.recordEnumerator.MoveNext())
? ODataReaderState.EntryStart
: ODataReaderState.FeedEnd;
break;
case ODataReaderState.FeedEnd:
this.state = ODataReaderState.Completed;
return(false);
case ODataReaderState.EntryStart:
var record = (this.readingFeed ? this.recordEnumerator.Current : this.currentObject) as AvroRecord;
if (record == null)
{
this.state = ODataReaderState.Exception;
return(false);
}
this.item = ODataAvroConvert.ToODataEntry(record);
this.state = ODataReaderState.EntryEnd;
return(true);
case ODataReaderState.EntryEnd:
if (!readingFeed)
{
this.state = ODataReaderState.Completed;
return(false);
}
this.state = this.recordEnumerator.MoveNext()
? ODataReaderState.EntryStart
: ODataReaderState.FeedEnd;
break;
default:
throw new ApplicationException("Invalid state");
}
return(true);
}
public override bool Read()
{
switch (this.state)
{
case ODataReaderState.Start:
if (this.currentObject == null)
{
if (!this.reader.MoveNext())
{
this.state = ODataReaderState.Exception;
return(false);
}
this.currentObject = this.reader.Current;
}
if (readingFeed)
{
this.state = ODataReaderState.ResourceSetStart;
}
else
{
this.state = ODataReaderState.ResourceStart;
var record = this.currentObject as AvroRecord;
return(ReadResourceFromRecord(this.currentObject));
}
break;
case ODataReaderState.ResourceSetStart:
{
this.item = new ODataResourceSet();
scopes.Push(this.item);
var objs = this.currentObject as object[];
if (objs == null)
{
this.state = ODataReaderState.Exception;
return(false);
}
this.recordEnumerator = objs.GetEnumerator();
return(MoveToNextAndReadResource());
}
case ODataReaderState.ResourceSetEnd:
this.state = ODataReaderState.Completed;
return(false);
case ODataReaderState.ResourceStart:
{
var nestedInfo = this.scopes.Count > 0 ? this.scopes.Peek() as ODataNestedResourceInfo : null;
this.scopes.Push(this.item);
if (nestedInfo != null)
{
this.state = ODataReaderState.ResourceEnd;
return(true);
}
var record = (this.readingFeed ? this.recordEnumerator.Current : this.currentObject) as AvroRecord;
nestedInfo = ODataAvroConvert.GetNestedResourceInfo(record);
if (nestedInfo != null)
{
this.item = nestedInfo;
this.state = ODataReaderState.NestedResourceInfoStart;
}
else
{
this.state = ODataReaderState.ResourceEnd;
}
return(true);
}
case ODataReaderState.ResourceEnd:
{
this.scopes.Pop();
var nestedInfo = this.scopes.Count > 0 ? this.scopes.Peek() as ODataNestedResourceInfo : null;
if (nestedInfo != null)
{
this.item = nestedInfo;
this.state = ODataReaderState.NestedResourceInfoEnd;
return(true);
}
if (!readingFeed)
{
this.state = ODataReaderState.Completed;
return(false);
}
return(MoveToNextAndReadResource());
}
case ODataReaderState.NestedResourceInfoStart:
{
this.scopes.Push(this.item);
var record = (this.readingFeed ? this.recordEnumerator.Current : this.currentObject) as AvroRecord;
var nestedInfo = this.item as ODataNestedResourceInfo;
this.item = ODataAvroConvert.ToODataEntry(record, nestedInfo.Name);
this.state = ODataReaderState.ResourceStart;
}
break;
case ODataReaderState.NestedResourceInfoEnd:
this.scopes.Pop();
this.item = this.scopes.Peek();
this.state = ODataReaderState.ResourceEnd;
break;
default:
throw new ApplicationException("Invalid state");
}
return(true);
}
