@Override
public MappeableContainer or(final MappeableArrayContainer value2) {
final MappeableArrayContainer value1 = this;
final int totalCardinality = value1.getCardinality() + value2.getCardinality();
if (totalCardinality > DEFAULT_MAX_SIZE) { // it could be a bitmap!
final MappeableBitmapContainer bc = new MappeableBitmapContainer();
if (!BufferUtil.isBackedBySimpleArray(bc.bitmap))
throw new RuntimeException("Should not happen. Internal bug.");
long[] bitArray = bc.bitmap.array();
if (BufferUtil.isBackedBySimpleArray(value2.content)) {
short[] sarray = value2.content.array();
for (int k = 0; k < value2.cardinality; ++k) {
final int i = BufferUtil.toIntUnsigned(sarray[k]) >>> 6;
bitArray[i] |= (1l << sarray[k]);
}
} else
for (int k = 0; k < value2.cardinality; ++k) {
short v2 = value2.content.get(k);
final int i = BufferUtil.toIntUnsigned(v2) >>> 6;
bitArray[i] |= (1l << v2);
}
if (BufferUtil.isBackedBySimpleArray(this.content)) {
short[] sarray = this.content.array();
for (int k = 0; k < this.cardinality; ++k) {
final int i = BufferUtil.toIntUnsigned(sarray[k]) >>> 6;
bitArray[i] |= (1l << sarray[k]);
}
} else
for (int k = 0; k < this.cardinality; ++k) {
final int i = BufferUtil.toIntUnsigned(this.content.get(k)) >>> 6;
bitArray[i] |= (1l << this.content.get(k));
}
bc.cardinality = 0;
int len = bc.bitmap.limit();
for (int index = 0; index < len; ++index) {
bc.cardinality += Long.bitCount(bitArray[index]);
}
if (bc.cardinality <= DEFAULT_MAX_SIZE) return bc.toArrayContainer();
return bc;
}
final MappeableArrayContainer answer = new MappeableArrayContainer(totalCardinality);
if (BufferUtil.isBackedBySimpleArray(value1.content)
&& BufferUtil.isBackedBySimpleArray(value2.content))
answer.cardinality =
org.roaringbitmap.Util.unsignedUnion2by2(
value1.content.array(),
value1.getCardinality(),
value2.content.array(),
value2.getCardinality(),
answer.content.array());
else
answer.cardinality =
BufferUtil.unsignedUnion2by2(
value1.content,
value1.getCardinality(),
value2.content,
value2.getCardinality(),
answer.content.array());
return answer;
}
@Override
public MappeableArrayContainer and(final MappeableArrayContainer value2) {
MappeableArrayContainer value1 = this;
final int desiredCapacity = Math.min(value1.getCardinality(), value2.getCardinality());
MappeableArrayContainer answer = new MappeableArrayContainer(desiredCapacity);
if (BufferUtil.isBackedBySimpleArray(this.content)
&& BufferUtil.isBackedBySimpleArray(value2.content))
answer.cardinality =
org.roaringbitmap.Util.unsignedIntersect2by2(
value1.content.array(),
value1.getCardinality(),
value2.content.array(),
value2.getCardinality(),
answer.content.array());
else
answer.cardinality =
BufferUtil.unsignedIntersect2by2(
value1.content,
value1.getCardinality(),
value2.content,
value2.getCardinality(),
answer.content.array());
return answer;
}
@Override
public MappeableContainer flip(short x) {
if (BufferUtil.isBackedBySimpleArray(this.content)) {
short[] sarray = content.array();
int loc = Util.unsignedBinarySearch(sarray, 0, cardinality, x);
if (loc < 0) {
// Transform the ArrayContainer to a BitmapContainer
// when cardinality = DEFAULT_MAX_SIZE
if (cardinality >= DEFAULT_MAX_SIZE) {
MappeableBitmapContainer a = this.toBitmapContainer();
a.add(x);
return a;
}
if (cardinality >= sarray.length) {
increaseCapacity();
sarray = content.array();
}
// insertion : shift the elements > x by one position to
// the right
// and put x in it's appropriate place
System.arraycopy(sarray, -loc - 1, sarray, -loc, cardinality + loc + 1);
sarray[-loc - 1] = x;
++cardinality;
} else {
System.arraycopy(sarray, loc + 1, sarray, loc, cardinality - loc - 1);
--cardinality;
}
return this;
} else {
int loc = BufferUtil.unsignedBinarySearch(content, 0, cardinality, x);
if (loc < 0) {
// Transform the ArrayContainer to a BitmapContainer
// when cardinality = DEFAULT_MAX_SIZE
if (cardinality >= DEFAULT_MAX_SIZE) {
MappeableBitmapContainer a = this.toBitmapContainer();
a.add(x);
return a;
}
if (cardinality >= content.limit()) {
increaseCapacity();
}
// insertion : shift the elements > x by one position to
// the right
// and put x in it's appropriate place
for (int k = cardinality; k > -loc - 1; --k) content.put(k, content.get(k - 1));
content.put(-loc - 1, x);
++cardinality;
} else {
for (int k = loc + 1; k < cardinality; --k) {
content.put(k - 1, content.get(k));
}
--cardinality;
}
return this;
}
}
@Override
public MappeableContainer remove(final short x) {
if (BufferUtil.isBackedBySimpleArray(this.content)) {
final int loc = Util.unsignedBinarySearch(content.array(), 0, cardinality, x);
if (loc >= 0) {
// insertion
System.arraycopy(content.array(), loc + 1, content.array(), loc, cardinality - loc - 1);
--cardinality;
}
return this;
} else {
final int loc = BufferUtil.unsignedBinarySearch(content, 0, cardinality, x);
if (loc >= 0) {
// insertion
for (int k = loc + 1; k < cardinality; --k) {
content.put(k - 1, content.get(k));
}
--cardinality;
}
return this;
}
}
@Override
public MappeableArrayContainer iandNot(final MappeableArrayContainer value2) {
if (!BufferUtil.isBackedBySimpleArray(this.content))
throw new RuntimeException("Should not happen. Internal bug.");
if (BufferUtil.isBackedBySimpleArray(value2.content))
this.cardinality =
org.roaringbitmap.Util.unsignedDifference(
this.content.array(),
this.getCardinality(),
value2.content.array(),
value2.getCardinality(),
this.content.array());
else
this.cardinality =
BufferUtil.unsignedDifference(
this.content,
this.getCardinality(),
value2.content,
value2.getCardinality(),
this.content.array());
return this;
}
@Override
public void advanceIfNeeded(short minval) {
pos = Util.advanceUntil(content, pos - 1, parent.cardinality, minval);
}