public IrbisDirectIO
(
string masterFile,
bool write
)
{
Database = Path.GetFileNameWithoutExtension(masterFile);
Mst = new MstFile
(
Path.ChangeExtension
(
masterFile,
".mst"
),
write
);
Xrf = new XrfFile
(
Path.ChangeExtension
(
masterFile,
".xrf"
),
write
);
InvertedFile = new InvertedFile
(
Path.ChangeExtension
(
masterFile,
".ifp"
),
write
);
}
public IrbisDirectReader
(
string masterFile,
bool inMemory
)
{
Database = Path.GetFileNameWithoutExtension(masterFile);
Mst = new MstFile
(
Path.ChangeExtension
(
masterFile,
".mst"
)
);
Xrf = new XrfFile
(
Path.ChangeExtension
(
masterFile,
".xrf"
),
inMemory
);
InvertedFile = new InvertedFile
(
Path.ChangeExtension
(
masterFile,
".ifp"
)
);
}
public IrbisRecord[] SearchReadSimple(string key)
{
int[] mfns = InvertedFile.SearchSimple(key);
List <IrbisRecord> result = new List <IrbisRecord>();
foreach (int mfn in mfns)
{
try
{
XrfRecord xrfRecord = Xrf.ReadRecord(mfn);
if (!xrfRecord.Deleted)
{
MstRecord mstRecord = Mst.ReadRecord2(xrfRecord.Offset);
if (!mstRecord.Deleted)
{
IrbisRecord irbisRecord = mstRecord.DecodeRecord();
irbisRecord.Database = Database;
result.Add(irbisRecord);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
return(result.ToArray());
}
//public IrbisRecord ReadRecord2
// (
// int mfn
// )
//{
// XrfRecord xrfRecord = Xrf.ReadRecord(mfn);
// MstRecord mstRecord = Mst.ReadRecord2(xrfRecord.Offset);
// IrbisRecord result = mstRecord.DecodeRecord();
// result.Database = Database;
// return result;
//}
public int[] SearchSimple(string key)
{
int[] mfns = InvertedFile.SearchSimple(key);
List <int> result = new List <int>();
foreach (int mfn in mfns)
{
if (!Xrf.ReadRecord(mfn).Deleted)
{
result.Add(mfn);
}
}
return(result.ToArray());
}
public void OpenDb(string db, bool write)
{
var masterFile = Irbis64Config.LookupDbMst(db);
Database = db;
Database = Path.GetFileNameWithoutExtension(masterFile);
if (Mst != null)
{
Mst.Dispose();
}
if (Xrf != null)
{
Xrf.Dispose();
}
if (InvertedFile != null)
{
InvertedFile.Dispose();
}
Mst = new MstFile
(
Path.ChangeExtension
(
masterFile,
".mst"
),
write
);
Xrf = new XrfFile
(
Path.ChangeExtension
(
masterFile,
".xrf"
),
write
);
InvertedFile = new InvertedFile
(
Path.ChangeExtension
(
masterFile,
".ifp"
),
write
);
}
public void Dispose()
{
if (Mst != null)
{
Mst.Dispose();
Mst = null;
}
if (Xrf != null)
{
Xrf.Dispose();
Xrf = null;
}
if (InvertedFile != null)
{
InvertedFile.Dispose();
InvertedFile = null;
}
}
public TermLink[] GetTermLinks(SearchTermInfo term, int first, int limit)
{
return(InvertedFile.GetTermLinks(term, first, limit));
}
public SearchTermInfo[] SearchTermsFrom(string key, bool searchBack, int limit)
{
return(InvertedFile.SearchTermsFrom(key, searchBack, limit));
}
public SearchTermInfo[] SearchTermsStart(string key, int limit)
{
return(InvertedFile.SearchTermsStart(key, limit));
}
public SearchTermInfo SearchTermExact(string key)
{
return(InvertedFile.SearchTermExact(key));
}
public TermLink[] SearchRange(string keyA, string keyB)
{
return(InvertedFile.SearchRange(keyA, keyB));
}
public TermLink[] SearchStart(string key)
{
return(InvertedFile.SearchStart(key));
}
public TermLink[] SearchExact(string key, int first, int limit)
{
return(InvertedFile.SearchExact(key, first, limit));
}
/// <summary>
/// ibatrak инициализация базы данных
/// </summary>
public void InitDatabase()
{
Mst.Create();
Xrf.Create();
InvertedFile.Create();
}