Pixabay starter code

notes

class diagram 

can be found in Week 9 folder 

PixabayResult.java

package edu.ggc.lutz.pixabayretrofit;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.TimeUnit;

import edu.ggc.lutz.pixabayretrofit.json.Hit;
import edu.ggc.lutz.pixabayretrofit.json.PixabayHttpResponse;

public class PixabayResult {

        private final static long DAY_MILLIS = TimeUnit.DAYS.toMillis(1);

        private long created;
        private HashMap<Long, Bitmap> bitmaps;
        private HashMap<Long, Hit> hits;
        private PixabayHttpResponse response; // taken from jsonschema2pojo without mod

        private long hitCount = -1;

        public PixabayResult(PixabayHttpResponse response) throws IOException {

            this.created = System.currentTimeMillis(); // birthday!
            this.response = response;
            cacheHits(response.getHits());
            cacheBitmaps(response.getHits());
        }

        // use hashmap rather than ArrayList since indexes are type long
        private void cacheHits(List<Hit> list) throws IOException {
            this.hits = new HashMap<>();
            for (Hit hit : list) {
                hitCount++;
                hits.put(hitCount - 1, hit); // zero based indexing
            }
        }

        private void cacheBitmaps(List<Hit> list) throws IOException {
            this.bitmaps = new HashMap<>();
            for (Hit hit : list) {
                InputStream stream = new URL(hit.getWebformatURL()).openStream();
                bitmaps.put(hit.getId(), BitmapFactory.decodeStream(stream));
            }
        }

        public boolean isExpired() {
            return created - System.currentTimeMillis() > DAY_MILLIS ? true : false;
        }

        public long size() { return hitCount; }
        public String getTags(long index) {
            return getHit(index).getTags();
        }
        public Hit getHit(long index) { return hits.get(index); }

        public Bitmap getBitmap(int index) {
            long id = getHit(index).getId(); // convert response index to Pixabay's id
            return bitmaps.get(id);
        }

        public static long getRandomLong(long maximum) {
            return getRandomLong(0L, maximum);
        }
        public static long getRandomLong(long minimum, long maximum) {
            return ((long) (Math.random() * (maximum - minimum))) + minimum;
        }


    }