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helper class for Pixabay Response. Since we need to cache query results for 24 hours, this method will be used for caching a result. It will also fetch all the bitmaps and cache these too, since those fetches can be long running and can be initiating from a backround task.
package edu.ggc.lutz.pixabay;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.Log;
import com.google.gson.Gson;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.HashMap;
import java.util.concurrent.TimeUnit;
import edu.ggc.lutz.pixabay.json.Hit;
import edu.ggc.lutz.pixabay.json.PixabayHttpResponse;
import static edu.ggc.lutz.pixabay.Pixabay.TAG;
public class PixabayQueryResult {
private static long DAY_MILLIS;
private static final Gson gson;
private int responseCode;
private long created;
private PixabayHttpResponse response; // taken from jsonschema2pojo without mod
private HashMap<Long,Bitmap> bitmaps;
private String responseMethod;
static {
gson = new Gson();
long DAY_MILLIS = TimeUnit.DAYS.toMillis(1);
Log.v(TAG, "DAY_MILLIS=" + DAY_MILLIS);
}
public PixabayQueryResult(String json) throws IOException {
this.response= gson.fromJson(json, PixabayHttpResponse.class);
this.created = System.currentTimeMillis(); // birthday!
cacheBitmaps();
}
private void cacheBitmaps() throws IOException {
this.bitmaps = new HashMap<>();
for (Hit hit : response.getHits()) {
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 response.getHits().size();
}
public String getTags(int index) {
return getHit(index).getTags();
}
public void setResponseCode(int responseCode) {
this.responseCode = responseCode;
Log.v(TAG, "responseCode = " + this.responseCode);
}
public void setResponseMethod(String responseMethod) {
this.responseMethod = responseMethod;
Log.v(TAG, "responseMethod = " + this.responseMethod);
}
public Hit getHit(int index) {
return response.getHits().get(index);
}
public Bitmap getBitmap(int index) {
long id = getHit(index).getId(); // covert response index to Pixabay's id
return bitmaps.get(id);
}
}
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