@Override
protected void loadArrayFileData() throws IOException {
long maxScn = _arrayFile.getLwmScn();
try {
_internalArray = new MemoryLongArray(_subArrayBits);
_arrayFile.load(_internalArray);
expandCapacity(_internalArray.length() - 1);
_internalArray.setArrayExpandListener(this);
} catch (Exception e) {
throw (e instanceof IOException)
? (IOException) e
: new IOException("Failed to load array file", e);
}
_entryManager.setWaterMarks(maxScn, maxScn);
}
@Override
public void expandCapacity(int index) throws Exception {
if (index < _length) return;
long capacity = ((index >> _subArrayBits) + 1L) * _subArraySize;
int newLength = (capacity < Integer.MAX_VALUE) ? (int) capacity : Integer.MAX_VALUE;
// Reset _length
_length = newLength;
// Expand internal array in memory
if (_internalArray.length() < newLength) {
_internalArray.expandCapacity(index);
}
// Expand array file on disk
_arrayFile.setArrayLength(newLength, null /* do not rename */);
// Add to logging
_log.info("Expanded: _length=" + _length);
}
@Override
public void clear() {
if (_internalArray != null) {
_internalArray.clear();
}
// Clear the entry manager
_entryManager.clear();
// Clear the underlying array file
try {
_arrayFile.reset(_internalArray, _entryManager.getLWMark());
} catch (IOException e) {
_log.error(e.getMessage(), e);
}
}
@Override
public long[] getInternalArray() {
return _internalArray.getInternalArray();
}
@Override
public void setCompactionAddress(int index, long address, long scn) throws Exception {
_internalArray.set(index, address);
_entryManager.addToPreFillEntryLongCompaction(index, address, scn);
}
@Override
public void set(int index, long value, long scn) throws Exception {
_internalArray.set(index, value);
_entryManager.addToPreFillEntryLong(index, value, scn);
}
@Override
public long get(int index) {
return _internalArray.get(index);
}