package com.baulsupp.kolja.log.entry;
import org.apache.commons.collections.primitives.IntList;
import org.apache.log4j.Logger;
import com.baulsupp.kolja.log.field.MemoryIntField;
import com.baulsupp.kolja.log.field.MemorySparseIntField;
import com.baulsupp.kolja.log.field.SparseIntField;
import com.baulsupp.kolja.log.util.IntRange;
public class BufferedLogEntryIndex implements LogEntryIndex {
private static final Logger log = Logger.getLogger(BufferedLogEntryIndex.class);
private LogEntryIndex index;
SparseIntField field = new MemorySparseIntField();
public BufferedLogEntryIndex(LogEntryIndex index) {
this.index = index;
}
public IntList get(IntRange region) {
IntList result = field.get(region);
log.debug("buf " + region);
if (result == null) {
IntRange[] missing = field.listUnknownRanges(region);
for (int i = 0; i < missing.length; i++) {
// TODO problem here!
log.debug("missing " + missing[i]);
IntList l = index.get(missing[i]);
field.add(new MemoryIntField(missing[i], l));
}
result = field.get(region);
}
return result;
}
}