public List <string> Next()
{
var sqlScript = LastGremlinTranslationOp.ToSqlScript();
SqlScript = sqlScript.ToString();
//Console.WriteLine(str); // Added temporarily for debugging purpose.
//Console.WriteLine();
var op = sqlScript.Batches[0].Compile(null, Connection);
var rawRecordResults = new List <RawRecord>();
RawRecord outputRec = null;
while ((outputRec = op.Next()) != null)
{
rawRecordResults.Add(outputRec);
}
List <string> results = new List <string>();
switch (outputFormat)
{
case OutputFormat.GraphSON:
string result = "[";
bool firstEntry = true;
foreach (var record in rawRecordResults)
{
if (firstEntry)
{
firstEntry = false;
}
else
{
result += ", ";
}
FieldObject field = record[0];
result += field.ToGraphSON();
}
result += "]";
results.Add(result);
break;
default:
foreach (var record in rawRecordResults)
{
FieldObject field = record[0];
results.Add(field.ToString());
}
break;
}
return(results);
}
internal static string ToGraphSON(List <RawRecord> results, GraphViewConnection connection)
{
StringBuilder finalGraphSonResult = new StringBuilder("[");
HashSet <string> batchIdSet = new HashSet <string>();
Dictionary <int, VertexField> batchGraphSonDict = new Dictionary <int, VertexField>();
StringBuilder notBatchedGraphSonResult = new StringBuilder();
bool firstEntry = true;
foreach (RawRecord record in results)
{
if (firstEntry)
{
firstEntry = false;
}
else
{
notBatchedGraphSonResult.Append(", ");
}
FieldObject field = record[0];
VertexField vertexField = field as VertexField;
if (vertexField != null &&
(!vertexField.AdjacencyList.HasBeenFetched || !vertexField.RevAdjacencyList.HasBeenFetched))
{
string vertexId = vertexField[GraphViewKeywords.KW_DOC_ID].ToValue;
batchIdSet.Add(vertexId);
batchGraphSonDict.Add(notBatchedGraphSonResult.Length, vertexField);
continue;
}
notBatchedGraphSonResult.Append(field.ToGraphSON());
}
if (batchIdSet.Any())
{
EdgeDocumentHelper.ConstructSpilledAdjListsOrVirtualRevAdjListsOfVertices(connection, batchIdSet);
int startIndex = 0;
foreach (KeyValuePair <int, VertexField> kvp in batchGraphSonDict)
{
int insertedPosition = kvp.Key;
int length = insertedPosition - startIndex;
VertexField vertexField = kvp.Value;
finalGraphSonResult.Append(notBatchedGraphSonResult.ToString(startIndex, length));
finalGraphSonResult.Append(vertexField.ToGraphSON());
startIndex = insertedPosition;
}
finalGraphSonResult.Append(notBatchedGraphSonResult.ToString(startIndex,
notBatchedGraphSonResult.Length - startIndex));
}
else
{
finalGraphSonResult.Append(notBatchedGraphSonResult.ToString());
}
finalGraphSonResult.Append("]");
return(finalGraphSonResult.ToString());
}
