/// <summary>Called to complete TermInfos creation. </summary>
public /*internal*/ void Close()
{
output.Seek(4); // write size after format
output.WriteLong(size);
output.Close();
if (!isIndex)
{
other.Close();
}
}
/// <summary>Merge files with the extensions added up to now.
/// All files with these extensions are combined sequentially into the
/// compound stream. After successful merge, the source files
/// are deleted.
/// </summary>
public void Close()
{
if (merged)
{
throw new System.SystemException("Merge already performed");
}
if ((entries.Count == 0))
{
throw new System.SystemException("No entries to merge have been defined");
}
merged = true;
// open the compound stream
OutputStream os = null;
try
{
os = directory.CreateFile(fileName);
// Write the number of entries
os.WriteVInt(entries.Count);
// Write the directory with all offsets at 0.
// Remember the positions of directory entries so that we can
// adjust the offsets later
System.Collections.IEnumerator it = entries.GetEnumerator();
while (it.MoveNext())
{
FileEntry fe = (FileEntry)it.Current;
fe.directoryOffset = os.GetFilePointer();
os.WriteLong(0); // for now
os.WriteString(fe.file);
}
// Open the files and copy their data into the stream.
// Remeber the locations of each file's data section.
byte[] buffer = new byte[1024];
it = entries.GetEnumerator();
while (it.MoveNext())
{
FileEntry fe = (FileEntry)it.Current;
fe.dataOffset = os.GetFilePointer();
CopyFile(fe, os, buffer);
}
// Write the data offsets into the directory of the compound stream
it = entries.GetEnumerator();
while (it.MoveNext())
{
FileEntry fe = (FileEntry)it.Current;
os.Seek(fe.directoryOffset);
os.WriteLong(fe.dataOffset);
}
// Close the output stream. Set the os to null before trying to
// close so that if an exception occurs during the close, the
// finally clause below will not attempt to close the stream
// the second time.
OutputStream tmp = os;
os = null;
tmp.Close();
}
finally
{
if (os != null)
{
try
{
os.Close();
}
catch (System.IO.IOException)
{
}
}
}
}
