package com.baulsupp.kolja.log.line;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.collections.primitives.ArrayIntList;
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 ValueIndexer implements LineListener, CompletionStatus {
protected SparseIntField indexed = new MemorySparseIntField();
protected LineIndex li;
private boolean inRead = false;
public ValueIndexer(LineIndex li) {
this.li = li;
}
public void linesAvailable(IntRange region, List<Line> lines) {
if (!inRead) {
IntRange[] unknown = indexed.listUnknownRanges(region);
for (IntRange range : unknown) {
List<Line> regionLines = new ArrayList<Line>();
for (Line line : lines) {
if (range.contains(line.getOffset())) {
regionLines.add(line);
}
}
processLines(range, regionLines);
}
}
}
public void ensureAllKnown() {
ensureKnown(new IntRange(0, li.length()));
}
public void ensureKnown(IntRange region) {
IntRange[] unknown = indexed.listUnknownRanges(region);
for (IntRange unknownRegion : unknown) {
List<Line> list;
try {
inRead = true;
list = li.get(unknownRegion);
} finally {
inRead = false;
}
// TODO check this is making sense
processLines(unknownRegion, list);
}
}
public IntRange[] listUnknown() {
return indexed.listUnknownRanges(new IntRange(0, li.length()));
}
protected void processLines(IntRange range, List<Line> regionLines) {
indexed.add(new MemoryIntField(range, new ArrayIntList(0)));
}
public int getLength() {
return li.length();
}
public double getCompletionPercentage(IntRange range) {
IntRange[] unknown = indexed.listUnknownRanges(range);
int totalUnknown = 0;
for (IntRange r : unknown) {
totalUnknown += r.getLength();
}
return totalUnknown / range.getLength();
}
}