128 lines
3.7 KiB
Java
128 lines
3.7 KiB
Java
package info.nightscout.androidaps.data;
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import android.support.annotation.Nullable;
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import android.support.v4.util.LongSparseArray;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.ArrayList;
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import java.util.List;
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import info.nightscout.androidaps.interfaces.Interval;
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import info.nightscout.utils.DateUtil;
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/**
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* Created by mike on 09.05.2017.
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*/
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// Zero duration means profile is valid until is chaged
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// When no interval match the lastest record without duration is used
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public class ProfileIntervals<T extends Interval> {
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private static Logger log = LoggerFactory.getLogger(ProfileIntervals.class);
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private LongSparseArray<T> rawData; // oldest at index 0
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public ProfileIntervals () {
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rawData = new LongSparseArray<>();
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}
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public ProfileIntervals (ProfileIntervals<T> other) {
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rawData = other.rawData.clone();
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}
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public synchronized ProfileIntervals reset() {
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rawData = new LongSparseArray<>();
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return this;
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}
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public synchronized void add(T newInterval) {
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rawData.put(newInterval.start(), newInterval);
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merge();
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}
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public synchronized void add(List<T> list) {
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for (T interval : list) {
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if (interval.isValid())
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rawData.put(interval.start(), interval);
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}
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merge();
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}
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private synchronized void merge() {
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for (int index = 0; index < rawData.size() - 1; index++) {
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Interval i = rawData.valueAt(index);
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long startOfNewer = rawData.valueAt(index + 1).start();
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if (i.originalEnd() > startOfNewer) {
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i.cutEndTo(startOfNewer);
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}
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}
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}
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@Nullable
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public synchronized Interval getValueToTime(long time) {
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int index = binarySearch(time);
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if (index >= 0) return rawData.valueAt(index);
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// if we request data older than first record, use oldest instead
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if (rawData.size() > 0) {
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log.debug("Requested profile for time: " + DateUtil.dateAndTimeString(time) + ". Providing oldest record: " + rawData.valueAt(0).toString());
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return rawData.valueAt(0);
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}
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return null;
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}
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public synchronized List<T> getList() {
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List<T> list = new ArrayList<>();
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for (int i = 0; i < rawData.size(); i++)
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list.add(rawData.valueAt(i));
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return list;
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}
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public synchronized List<T> getReversedList() {
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List<T> list = new ArrayList<>();
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for (int i = rawData.size() - 1; i >= 0; i--)
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list.add(rawData.valueAt(i));
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return list;
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}
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private synchronized int binarySearch(long value) {
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if (rawData.size() == 0)
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return -1;
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int lo = 0;
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int hi = rawData.size() - 1;
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while (lo <= hi) {
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final int mid = (lo + hi) >>> 1;
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final Interval midVal = rawData.valueAt(mid);
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if (midVal.match(value)) {
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return mid; // value found
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} else if (midVal.before(value)) {
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lo = mid + 1;
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} else if (midVal.after(value)) {
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hi = mid - 1;
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}
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}
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// not found, try nearest older with duration 0
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lo = lo - 1;
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while (lo >= 0 && lo < rawData.size()) {
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if (rawData.valueAt(lo).isEndingEvent())
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return lo;
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lo--;
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}
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return -1; // value not present
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}
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public synchronized int size() {
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return rawData.size();
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}
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public synchronized T get(int index) {
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return rawData.valueAt(index);
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}
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public synchronized T getReversed(int index) {
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return rawData.valueAt(size() - 1 - index);
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}
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} |