/** Close this store. */
public void close() {
try {
if (fileLock != null) {
fileLock.release();
fileLock = null;
}
file.close();
freeSpace.clear();
} catch (Exception e) {
throw DataUtils.newIllegalStateException(
DataUtils.ERROR_WRITING_FAILED, "Closing failed for file {0}", fileName, e);
} finally {
file = null;
}
}
/** Mark the file as empty. */
public void clear() {
freeSpace.clear();
}
long getFirstFree() {
return freeSpace.getFirstFree();
}
public int getFillRate() {
return freeSpace.getFillRate();
}
/**
* Mark the space as free.
*
* @param pos the position in bytes
* @param length the number of bytes
*/
public void free(long pos, int length) {
freeSpace.free(pos, length);
}
/**
* Allocate a number of blocks and mark them as used.
*
* @param length the number of bytes to allocate
* @return the start position in bytes
*/
public long allocate(int length) {
return freeSpace.allocate(length);
}
/**
* Mark the space as in use.
*
* @param pos the position in bytes
* @param length the number of bytes
*/
public void markUsed(long pos, int length) {
freeSpace.markUsed(pos, length);
}