public void WriteIndexNode(IndexNode indexNode)
{
indexOffsets.Add(indexNode.Id, indexFileStreamWriter.BaseStream.Position);
indexFileStreamWriter.Write(indexNode.AdjacentNodes.Count);
foreach (IndexAdjacentNode adjacentNode in indexNode.AdjacentNodes)
{
indexFileStreamWriter.Write(adjacentNode.Id);
indexFileStreamWriter.Write(adjacentNode.Cost);
}
}
public void WriteIndexNode(IndexNode indexNode)
{
indexOffsets.Add(indexNode.Id, indexFileStreamWriter.BaseStream.Position);
indexFileStreamWriter.Write(indexNode.AdjacentNodes.Count);
foreach (IndexAdjacentNode adjacentNode in indexNode.AdjacentNodes)
{
indexFileStreamWriter.Write(adjacentNode.Id);
indexFileStreamWriter.Write(adjacentNode.Cost);
}
}
public IndexNode ReadIndexNode(int nodeIndex)
{
int indexOffset = nodeIndex * 8;
readingCache.SeekForward(indexOffset); // move the the position where record the position of adjacent ids.
long recordPosition = readingCache.ReadLong();
readingCache.Seek(recordPosition);
IndexNode indexNode = new IndexNode(nodeIndex);
int adjacentCount = readingCache.ReadInt32();
for (int i = 0; i < adjacentCount; i++)
{
int id = readingCache.ReadInt32();
float cost = readingCache.ReadFloat();
indexNode.AdjacentNodes.Add(new IndexAdjacentNode(id, cost));
}
return indexNode;
}
public IndexNode ReadIndexNode(int nodeIndex)
{
int indexOffset = nodeIndex * 8;
readingCache.SeekForward(indexOffset); // move the the position where record the position of adjacent ids.
long recordPosition = readingCache.ReadLong();
readingCache.Seek(recordPosition);
IndexNode indexNode = new IndexNode(nodeIndex);
int adjacentCount = readingCache.ReadInt32();
for (int i = 0; i < adjacentCount; i++)
{
int id = readingCache.ReadInt32();
float cost = readingCache.ReadFloat();
indexNode.AdjacentNodes.Add(new IndexAdjacentNode(id, cost));
}
return(indexNode);
}
public void WriteIndexNode(IndexNode indexNode)
{
indexOffsets.Add(indexNode.Id, attributionFileStreamWriter.BaseStream.Position);
attributionFileStreamWriter.Write(indexNode.AdjacentNodes.Count);
Collection<int> recordOffsets = new Collection<int>();
int currentOffset = indexNode.AdjacentNodes.Count * 8;
int currentFeatureIdLength = 0;
foreach (IndexAdjacentNode adjacentNode in indexNode.AdjacentNodes)
{
attributionFileStreamWriter.Write(adjacentNode.Id);
attributionFileStreamWriter.Write(currentOffset + currentFeatureIdLength);
currentFeatureIdLength += adjacentNode.FeatureId.Length;
}
foreach (IndexAdjacentNode adjacentNode in indexNode.AdjacentNodes)
{
//attributionFileStreamWriter.Write(adjacentNode.FeatureId.Length);
attributionFileStreamWriter.Write(adjacentNode.FeatureId);
}
}