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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.push;
import android.support.annotation.NonNull;
import org.json.JSONException;
import org.json.JSONObject;
/**
* Pair a (String) value with a timestamp. The timestamp is usually when the
* value was fetched from a remote service or when the value was locally
* generated.
*
* It's awkward to serialize generic values to JSON -- that requires lots of
* factory classes -- so we specialize to String instances.
*/
public class Fetched {
public final String value;
public final long timestamp;
public Fetched(String value, long timestamp) {
this.value = value;
this.timestamp = timestamp;
}
public static Fetched now(String value) {
return new Fetched(value, System.currentTimeMillis());
}
public static @NonNull Fetched fromJSONObject(@NonNull JSONObject json) {
final String value = json.optString("value", null);
final String timestampString = json.optString("timestamp", null);
final long timestamp = timestampString != null ? Long.valueOf(timestampString) : 0L;
return new Fetched(value, timestamp);
}
public JSONObject toJSONObject() throws JSONException {
final JSONObject jsonObject = new JSONObject();
if (value != null) {
jsonObject.put("value", value);
} else {
jsonObject.remove("value");
}
jsonObject.put("timestamp", Long.toString(timestamp));
return jsonObject;
}
@Override
public boolean equals(Object o) {
// Auto-generated.
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Fetched fetched = (Fetched) o;
if (timestamp != fetched.timestamp) return false;
return !(value != null ? !value.equals(fetched.value) : fetched.value != null);
}
@Override
public int hashCode() {
// Auto-generated.
int result = value != null ? value.hashCode() : 0;
result = 31 * result + (int) (timestamp ^ (timestamp >>> 32));
return result;
}
}
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