public CompoundFileReader(Directory dir, System.String name)
{
directory = dir;
fileName = name;
bool success = false;
try
{
stream = dir.OpenFile(name);
// read the directory and init files
int count = stream.ReadVInt();
FileEntry entry = null;
for (int i = 0; i < count; i++)
{
long offset = stream.ReadLong();
System.String id = stream.ReadString();
if (entry != null)
{
// set length of the previous entry
entry.length = offset - entry.offset;
}
entry = new FileEntry();
entry.offset = offset;
entries[id] = entry;
}
// set the length of the final entry
if (entry != null)
{
entry.length = stream.Length() - entry.offset;
}
success = true;
}
finally
{
if (!success && (stream != null))
{
try
{
stream.Close();
}
catch (System.IO.IOException e)
{
}
}
}
}
public CompoundFileReader(Directory dir, System.String name)
{
directory = dir;
fileName = name;
bool success = false;
try
{
stream = dir.OpenFile(name);
// read the directory and init files
int count = stream.ReadVInt();
FileEntry entry = null;
for (int i = 0; i < count; i++)
{
long offset = stream.ReadLong();
System.String id = stream.ReadString();
if (entry != null)
{
// set length of the previous entry
entry.length = offset - entry.offset;
}
entry = new FileEntry();
entry.offset = offset;
entries[id] = entry;
}
// set the length of the final entry
if (entry != null)
{
entry.length = stream.Length() - entry.offset;
}
success = true;
}
finally
{
if (!success && (stream != null))
{
try
{
stream.Close();
}
catch (System.IO.IOException e)
{
}
}
}
}
private void Read(InputStream input)
{
int size = input.ReadVInt(); //read in the size
for (int i = 0; i < size; i++)
{
System.String name = String.Intern(input.ReadString());
byte bits = input.ReadByte();
bool isIndexed = (bits & 0x1) != 0;
bool storeTermVector = (bits & 0x2) != 0;
AddInternal(name, isIndexed, storeTermVector);
}
}
public void Read(Directory directory)
{
InputStream input = directory.OpenFile("segments");
try
{
int format = input.ReadInt();
if (format < 0)
{
// file contains explicit format info
// check that it is a format we can understand
if (format < FORMAT)
{
throw new System.IO.IOException("Unknown format version: " + format);
}
version = input.ReadLong(); // read version
counter = input.ReadInt(); // read counter
}
else
{
// file is in old format without explicit format info
counter = format;
}
for (int i = input.ReadInt(); i > 0; i--)
{
// read segmentInfos
SegmentInfo si = new SegmentInfo(input.ReadString(), input.ReadInt(), directory);
Add(si);
}
if (format >= 0)
{
// in old format the version number may be at the end of the file
if (input.GetFilePointer() >= input.Length())
{
version = 0;
}
// old file format without version number
else
{
version = input.ReadLong(); // read version
}
}
}
finally
{
input.Close();
}
}
public /*internal*/ Document Doc(int n)
{
indexStream.Seek(n * 8L);
long position = indexStream.ReadLong();
fieldsStream.Seek(position);
Document doc = new Document();
int numFields = fieldsStream.ReadVInt();
for (int i = 0; i < numFields; i++)
{
int fieldNumber = fieldsStream.ReadVInt();
FieldInfo fi = fieldInfos.FieldInfo(fieldNumber);
byte bits = fieldsStream.ReadByte();
doc.Add(new Field(fi.name, fieldsStream.ReadString(), true, fi.isIndexed, (bits & 1) != 0, fi.storeTermVector)); // vector
}
return(doc);
}
private System.Collections.ArrayList ReadDeleteableFiles()
{
System.Collections.ArrayList result = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
if (!directory.FileExists("deletable"))
{
return(result);
}
InputStream input = directory.OpenFile("deletable");
try
{
for (int i = input.ReadInt(); i > 0; i--)
{
// read file names
result.Add(input.ReadString());
}
}
finally
{
input.Close();
}
return(result);
}
private void Read(InputStream input)
{
int size = input.ReadVInt(); //read in the size
for (int i = 0; i < size; i++)
{
System.String name = String.Intern(input.ReadString());
byte bits = input.ReadByte();
bool isIndexed = (bits & 0x1) != 0;
bool storeTermVector = (bits & 0x2) != 0;
AddInternal(name, isIndexed, storeTermVector);
}
}
