AndroidAPS/app/src/main/java/info/nightscout/androidaps/data/ProfileIntervals.java
2018-01-21 13:37:38 +01:00

110 lines
3 KiB
Java

package info.nightscout.androidaps.data;
import android.support.annotation.Nullable;
import android.support.v4.util.LongSparseArray;
import java.util.ArrayList;
import java.util.List;
import info.nightscout.androidaps.interfaces.Interval;
/**
* Created by mike on 09.05.2017.
*/
// Zero duration means profile is valid until is chaged
// When no interval match the lastest record without duration is used
public class ProfileIntervals<T extends Interval> {
private LongSparseArray<T> rawData = new LongSparseArray<>(); // oldest at index 0
public synchronized ProfileIntervals reset() {
rawData = new LongSparseArray<>();
return this;
}
public synchronized void add(T newInterval) {
rawData.put(newInterval.start(), newInterval);
merge();
}
public synchronized void add(List<T> list) {
for (T interval : list) {
if (interval.isValid())
rawData.put(interval.start(), interval);
}
merge();
}
private synchronized void merge() {
for (int index = 0; index < rawData.size() - 1; index++) {
Interval i = rawData.valueAt(index);
long startOfNewer = rawData.valueAt(index + 1).start();
if (i.originalEnd() > startOfNewer) {
i.cutEndTo(startOfNewer);
}
}
}
@Nullable
public synchronized Interval getValueToTime(long time) {
int index = binarySearch(time);
if (index >= 0) return rawData.valueAt(index);
return null;
}
public synchronized List<T> getList() {
List<T> list = new ArrayList<>();
for (int i = 0; i < rawData.size(); i++)
list.add(rawData.valueAt(i));
return list;
}
public synchronized List<T> getReversedList() {
List<T> list = new ArrayList<>();
for (int i = rawData.size() - 1; i >= 0; i--)
list.add(rawData.valueAt(i));
return list;
}
private synchronized int binarySearch(long value) {
if (rawData.size() == 0)
return -1;
int lo = 0;
int hi = rawData.size() - 1;
while (lo <= hi) {
final int mid = (lo + hi) >>> 1;
final Interval midVal = rawData.valueAt(mid);
if (midVal.match(value)) {
return mid; // value found
} else if (midVal.before(value)) {
lo = mid + 1;
} else if (midVal.after(value)) {
hi = mid - 1;
}
}
// not found, try nearest older with duration 0
lo = lo - 1;
while (lo >= 0 && lo < rawData.size()) {
if (rawData.valueAt(lo).isEndingEvent())
return lo;
lo--;
}
return -1; // value not present
}
public synchronized int size() {
return rawData.size();
}
public synchronized T get(int index) {
return rawData.valueAt(index);
}
public synchronized T getReversed(int index) {
return rawData.valueAt(size() - 1 - index);
}
}