public void LoadFromBinary(string fileName)
{
Console.WriteLine("Loading data base from binary file: {0} ...", fileName);
try
{
TimeInterval loadTimeInterval = new TimeInterval();
using (FileStream fr = new FileStream(fileName, FileMode.Open))
{
BinaryReader br = new BinaryReader(fr);
songNames.Clear();
int header = br.ReadInt32();
if (header != BINARY_HEADER)
{
throw new InvalidDataException("Invalid binary index file!");
}
int nameCount = br.ReadInt32();
for (int i = 0; i < nameCount; i++)
{
string name = br.ReadString();
songNames.Add(name);
if (CheckDuplicate)
songNameSet.Add(name);
}
hashMap.Clear();
int hashCount = br.ReadInt32();
for (int i = 0; i < hashCount; i++)
{
long key = br.ReadInt64();
int count = br.ReadInt32();
List<DataPoint> pointList = new List<DataPoint>(count);
for (int j = 0; j < count; j++)
{
short time = br.ReadInt16();
short songID = br.ReadInt16();
DataPoint dataPoint = new DataPoint(time, songID);
pointList.Add(dataPoint);
}
hashMap.Add(key, pointList);
}
}
Console.WriteLine("Done! {0}s", loadTimeInterval.GetDurationInSecond());
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
}
public void Load(string fileName)
{
Console.WriteLine("Loading data base from file: {0} ...", fileName);
try
{
TimeInterval loadTimeInterval = new TimeInterval();
using (StreamReader sr = new StreamReader(fileName))
{
songNames.Clear();
int nameCount = int.Parse(sr.ReadLine());
for (int i = 0; i < nameCount; i++)
{
string name = sr.ReadLine();
songNames.Add(name);
if (CheckDuplicate)
songNameSet.Add(name);
}
hashMap.Clear();
int hashCount = int.Parse(sr.ReadLine());
for (int i = 0; i < hashCount; i++)
{
string record = sr.ReadLine();
string[] items = record.Split('\t');
long hash = long.Parse(items[0]);
List<DataPoint> pointList = new List<DataPoint>();
for (int j = 1; j < items.Length; j++)
{
string[] values = items[j].Split(',');
short time = short.Parse(values[0]);
short songID = short.Parse(values[1]);
DataPoint dataPoint = new DataPoint(time, songID);
pointList.Add(dataPoint);
}
hashMap.Add(hash, pointList);
}
}
Console.WriteLine("Done! {0}s", loadTimeInterval.GetDurationInSecond());
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
