/// <summary>
/// Write a colored graph to a file
/// If the colored graph is not initialized throws ColoredGraphNotInitializationException
/// </summary>
/// <param name="graph">Colored graph</param>
/// <param name="graphColoringAlgorithm">Algorithm which was used for coloring the graph</param>
/// <param name="isOptimal">Is the algorithm optimal for the graph</param>
public bool WriteFileColor(Graph.IGraphInterface graph, GraphColoringAlgorithm.GraphColoringAlgorithm.GraphColoringAlgorithmEnum graphColoringAlgorithm, bool isOptimal)
{
// Variable
Graph.IColoredGraphInterface coloredGraph;
coloredGraph = graph.GetColoredGraph();
if (!coloredGraph.GetIsInitializedColoredGraph())
{
throw new MyException.GraphException.ColoredGraphNotInitializationException();
}
if (CheckIfRecordExists(graphColoringAlgorithm))
{
return(false);
}
using (StreamWriter streamWriter = File.AppendText(GetPath()))
{
streamWriter.WriteLine();
// Number of colors
if (isOptimal)
{
streamWriter.WriteLine(READERWRITERCHROMATICNUMBER + coloredGraph.GetCountUsedColors());
}
else
{
streamWriter.WriteLine(READERWRITERNUMBEROFCOLORS + coloredGraph.GetCountUsedColors());
}
// Used algorithm
streamWriter.WriteLine(READERWRITERUSEDALGORITHM + graphColoringAlgorithm);
// Colored graph
List <int> colorList = coloredGraph.UsedColors();
foreach (int color in colorList)
{
List <Graph.IVertexInterface> vertexList = coloredGraph.ColoredVertices(color);
streamWriter.WriteLine("- " + color);
vertexList.ForEach(vertex => { streamWriter.WriteLine("-- " + vertex.GetUserName()); });
}
}
return(true);
}
private bool CheckIfRecordExists(GraphColoringAlgorithm.GraphColoringAlgorithm.GraphColoringAlgorithmEnum graphColoringAlgorithm)
{
// Variable
string line;
if (graphColoringAlgorithm == GraphColoringAlgorithm.GraphColoringAlgorithm.GraphColoringAlgorithmEnum.randomSequence)
{
return(false);
}
using (FileStream fileStream = File.OpenRead(GetPath()))
using (StreamReader streamReader = new StreamReader(fileStream, Encoding.UTF8))
{
while (!streamReader.EndOfStream)
{
line = streamReader.ReadLine();
while (!line.StartsWith(READERWRITERUSEDALGORITHM))
{
// No colored
if (streamReader.EndOfStream)
{
return(false);
}
line = streamReader.ReadLine();
}
line = line.Substring(READERWRITERUSEDALGORITHM.Length);
if (line == graphColoringAlgorithm.ToString())
{
return(true);
}
}
}
return(false);
}
