/**
* This method deletes a data file or resets its free position. this is used only for nio files -
* not OOo files
*/
public static void deleteOrResetFreePos(Database database, String filename) {
ScaledRAFile raFile = null;
try {
database.getFileAccess().removeElement(filename);
} catch (IOException e) {
database.logger.appLog.logContext(e);
}
if (database.isStoredFileAccess()) {
return;
}
if (!database.getFileAccess().isStreamElement(filename)) {
return;
}
try {
raFile = new ScaledRAFile(filename, false);
raFile.seek(LONG_FREE_POS_POS);
raFile.writeLong(INITIAL_FREE_POS);
} catch (IOException e) {
database.logger.appLog.logContext(e);
} finally {
if (raFile != null) {
try {
raFile.close();
} catch (IOException e) {
database.logger.appLog.logContext(e);
}
}
}
}
HsqlArrayList defrag(Database db, ScaledRAFile sourcenotused, String filename)
throws IOException, HsqlException {
Trace.printSystemOut("Defrag Transfer begins");
HsqlArrayList rootsList = new HsqlArrayList();
HsqlArrayList tTable = db.getTables();
// erik to specify scale;
ScaledRAFile dest =
ScaledRAFile.newScaledRAFile(filename + ".new", false, 1, ScaledRAFile.DATA_FILE_RAF);
// erik desl.seek(Cache.INITIAL_FREE_POS / cacheFileScale);
dest.seek(Cache.INITIAL_FREE_POS);
for (int i = 0, tSize = tTable.size(); i < tSize; i++) {
Table t = (Table) tTable.get(i);
if (t.tableType == Table.CACHED_TABLE) {
int[] rootsArray = writeTableToDataFile(t, dest);
rootsList.add(rootsArray);
} else {
rootsList.add(null);
}
Trace.printSystemOut(t.getName().name, " complete");
}
// erik no change
int pos = (int) dest.getFilePointer();
// erik desl.seek(Cache.FREE_POS_POS / cacheFileScale);
dest.seek(Cache.FREE_POS_POS);
dest.writeInt(pos);
dest.close();
for (int i = 0, size = rootsList.size(); i < size; i++) {
int[] roots = (int[]) rootsList.get(i);
if (roots != null) {
Trace.printSystemOut(org.hsqldb.lib.StringUtil.getList(roots, ",", ""));
}
}
Trace.printSystemOut("Transfer complete: ", stopw.elapsedTime());
return rootsList;
}
public static int getFlags(String filename) throws HsqlException {
try {
ScaledRAFile raFile =
(ScaledRAFile)
ScaledRAFile.newScaledRAFile(filename, true, ScaledRAFile.DATA_FILE_RAF, null, null);
raFile.seek(FLAGS_POS);
int flags = raFile.readInt();
raFile.close();
return flags;
} catch (IOException e) {
throw Trace.error(Trace.DATA_FILE_ERROR);
}
}
