Example usage for com.google.gson JsonNull INSTANCE

List of usage examples for com.google.gson JsonNull INSTANCE

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JsonNull INSTANCE

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singleton for JsonNull

Usage

From source file:edu.oregonstate.eecs.mcplan.search.fsss.experiments.FsssJairExperiments.java

License:Open Source License

private static <S extends State, A extends VirtualConstructor<A>> void writeEpisodeHistory(
        final PrintWriter out, final int episode, final HistoryRecorder<S, ?, A> hacc) throws IOException {
    if (hacc.states.isEmpty()) {
        System.out.println("! Warning: Empty history (writeEpisodeHistory)");
        return;/* w  w  w . j a va 2s  .c  o m*/
    }

    final JsonObject root = new JsonObject();
    root.add("episode", new JsonPrimitive(episode));

    final JsonArray h = new JsonArray();
    root.add("h", h);
    for (int i = 0; i < hacc.actions.size() - 1; ++i) {
        final JsonObject t = new JsonObject();
        t.add("s", ((JsonRepresentation<S>) hacc.states.get(i)).json);
        t.add("a", gson.toJsonTree(hacc.actions.get(i).get(0)));
        t.add("r", gson.toJsonTree(hacc.rewards.get(i)[0]));
        h.add(t);
    }
    final JsonObject terminal = new JsonObject();
    terminal.add("s", ((JsonRepresentation<S>) hacc.states.get(hacc.states.size() - 1)).json);
    terminal.add("a", JsonNull.INSTANCE);
    terminal.add("r", gson.toJsonTree(hacc.rewards.get(hacc.rewards.size() - 1)[0]));
    h.add(terminal);

    gson.toJson(root, out);
    out.println();
    out.flush();
}

From source file:fr.zcraft.MultipleInventories.snaphots.PlayerSnapshot.java

License:Open Source License

/**
 * @return A JSON export of this snapshot (including inventories and {@link
 * ItemStackSnapshot item snapshots}./* w  w  w.j  av a 2 s.  com*/
 */
public JsonElement toJSON() {
    final JsonObject dump = new JsonObject();
    final JsonArray armorDump = new JsonArray();
    final JsonArray effectsDump = new JsonArray();

    Arrays.stream(armor).map(item -> item != null ? item.toJSON() : JsonNull.INSTANCE)
            .forEachOrdered(armorDump::add);

    effects.stream().map(this::toJSON).forEach(effectsDump::add);

    dump.addProperty("level", level);
    dump.addProperty("exp", exp);
    dump.addProperty("expTotal", expTotal);
    dump.addProperty("foodLevel", foodLevel);
    dump.addProperty("exhaustion", exhaustion);
    dump.addProperty("saturation", saturation);
    dump.addProperty("health", health);
    dump.addProperty("maxHealth", maxHealth);

    dump.add("armor", armorDump);
    dump.add("inventory", toJSON(inventory));
    dump.add("enderChest", toJSON(enderChest));
    dump.add("effects", effectsDump);

    return dump;
}

From source file:fr.zcraft.MultipleInventories.snaphots.PlayerSnapshot.java

License:Open Source License

/**
 * @return A JSON export of an inventory.
 *//*  w  ww  . j a v  a  2 s  . c  o  m*/
private JsonElement toJSON(final Map<Integer, ItemStackSnapshot> inventory) {
    final JsonObject dump = new JsonObject();

    inventory.forEach((index, itemSnapshot) -> dump.add(index.toString(),
            itemSnapshot != null ? itemSnapshot.toJSON() : JsonNull.INSTANCE));

    return dump;
}

From source file:fr.zcraft.zbanque.network.packets.PacketPlayOutSilos.java

License:Open Source License

private JsonElement item2WSItem(BlockType item) {
    if (item == null)
        return JsonNull.INSTANCE;

    JsonObject itemJson = new JsonObject();

    itemJson.addProperty("idItem", item.getType().getId());
    itemJson.addProperty("data", item.getType().getMaxDurability());

    return itemJson;
}

From source file:funf.FunfManager.java

License:Open Source License

/**
 * Get a gson builder with the probe factory built in
 * @return//from  w  ww  . j  av  a 2  s .  co m
 */
public static GsonBuilder getGsonBuilder(Context context) {
    return new GsonBuilder().registerTypeAdapterFactory(getProbeFactory(context))
            .registerTypeAdapterFactory(getPipelineFactory(context))
            .registerTypeAdapterFactory(new ConfigurableRuntimeTypeAdapterFactory<Schedule>(context,
                    Schedule.class, BasicSchedule.class))
            .registerTypeAdapterFactory(new ConfigurableRuntimeTypeAdapterFactory<ConfigUpdater>(context,
                    ConfigUpdater.class, HttpConfigUpdater.class))
            .registerTypeAdapterFactory(new ConfigurableRuntimeTypeAdapterFactory<FileArchive>(context,
                    FileArchive.class, DefaultArchive.class))
            .registerTypeAdapterFactory(new ConfigurableRuntimeTypeAdapterFactory<RemoteFileArchive>(context,
                    RemoteFileArchive.class, HttpArchive.class))
            .registerTypeAdapter(DefaultSchedule.class, new DefaultScheduleSerializer())
            .registerTypeAdapter(Class.class, new JsonSerializer<Class<?>>() {

                @Override
                public JsonElement serialize(Class<?> src, Type typeOfSrc, JsonSerializationContext context) {
                    return src == null ? JsonNull.INSTANCE : new JsonPrimitive(src.getName());
                }
            });
}

From source file:geomesa.example.twitter.ingest.TwitterParser.java

License:Apache License

public SimpleFeature parse(String input) {
    try {/*  ww w .j  a  v a  2s . com*/
        final JsonElement element = jsonParser.parse(input);
        if (element != null && element != JsonNull.INSTANCE) {
            final JsonObject jsonObject = element.getAsJsonObject();
            return convertToFeature(jsonObject, this.builder, geoFac, df);
        }
    } catch (Exception e) {
        log.error("error parsing input: " + input, e);
    }
    return null;
}

From source file:geomesa.example.twitter.ingest.TwitterParser.java

License:Apache License

public boolean parse(String input, SimpleFeature toWrite) {
    try {//from  w ww. j  ava 2s.c  om
        final JsonElement element = jsonParser.parse(input);
        if (element != null && element != JsonNull.INSTANCE) {
            final JsonObject jsonObject = element.getAsJsonObject();
            fillFeature(jsonObject, toWrite, geoFac, df);
            return true;
        }
    } catch (Exception e) {
        log.error("error parsing input: " + input, e);
    }
    return false;
}

From source file:geomesa.example.twitter.ingest.TwitterParser.java

License:Apache License

private SimpleFeature convertToFeature(final JsonObject obj, final SimpleFeatureBuilder builder,
        final GeometryFactory factory, final DateTimeFormatter df) {
    builder.reset();//from   w w  w.  j a v a2s  .c  o  m

    // user info
    final JsonObject user = obj.getAsJsonObject(USER);
    final String userName = user.getAsJsonPrimitive(USER_NAME).getAsString();
    final String userId = user.getAsJsonPrimitive(USER_ID).getAsString();
    builder.set(TwitterFeatureIngester.FEAT_USER_NAME, utf8(userName));
    builder.set(TwitterFeatureIngester.FEAT_USER_ID, userId);

    builder.set(TwitterFeatureIngester.FEAT_TEXT, utf8(obj.get(TEXT).getAsString()));

    // geo info
    final boolean hasGeoJson = obj.has(COORDS_GEO_JSON) && obj.get(COORDS_GEO_JSON) != JsonNull.INSTANCE;
    if (hasGeoJson) {
        final JsonObject geo = obj.getAsJsonObject(COORDS_GEO_JSON);
        final JsonArray coords = geo.getAsJsonArray(COORDS);
        double lat = coords.get(0).getAsDouble();
        double lon = coords.get(1).getAsDouble();

        if (lon != 0.0 && lat != 0.0) {
            final Coordinate coordinate = new Coordinate(lat, lon);
            final Geometry g = new Point(new CoordinateArraySequence(new Coordinate[] { coordinate }), factory);
            builder.set(TwitterFeatureIngester.FEAT_GEOM, g);
        }
    }

    // time and id
    final String tweetId = obj.get(TWEET_ID).getAsString();
    final Date date = df.parseDateTime(obj.get(CREATED_AT).getAsString()).toDate();
    builder.set(TwitterFeatureIngester.FEAT_TWEET_ID, tweetId);
    builder.set(TwitterFeatureIngester.FEAT_DTG, date);

    if (useExtendedFeatures) {
        conditionalSetString(builder, obj, FEAT_IS_RETWEET);
        conditionalSetString(builder, obj, FEAT_SOURCE);
        conditionalSetString(builder, obj, FEAT_RETWEETS);
        conditionalSetString(builder, obj, FEAT_IN_REPLY_TO_USER_ID);
        conditionalSetString(builder, obj, FEAT_IN_REPLY_TO_USER_NAME);
        conditionalSetString(builder, obj, FEAT_IN_REPLY_TO_STATUS);
        conditionalSetString(builder, obj, FEAT_FILTER_LEVEL);
        conditionalSetString(builder, obj, FEAT_LANGUAGE);
        conditionalSetString(builder, obj, FEAT_WITHHELD_COPYRIGHT);
        conditionalSetString(builder, obj, FEAT_WITHHELD_SCOPE);
        conditionalSetArray(builder, obj, FEAT_WITHHELD_COUNTRIES);

        JsonElement entities = obj.get("entities");
        if (entities != null && entities != JsonNull.INSTANCE) {
            JsonObject e = (JsonObject) entities;
            conditionalSetObjectArray(builder, e, FEAT_HASHTAGS, "text");
            conditionalSetObjectArray(builder, e, FEAT_URLS, "url");
            conditionalSetObjectArray(builder, e, FEAT_SYMBOLS, "text");
            conditionalSetObjectArray(builder, e, FEAT_USER_MENTIONS, "id");
            conditionalSetObjectArray(builder, e, FEAT_MEDIA, "media_url");
        }
    }

    return builder.buildFeature(tweetId);
}

From source file:geomesa.example.twitter.ingest.TwitterParser.java

License:Apache License

private void fillFeature(final JsonObject obj, final SimpleFeature sf, final GeometryFactory factory,
        final DateTimeFormatter df) {

    // user info/*from w w w. ja  va  2  s.c  o m*/
    final JsonObject user = obj.getAsJsonObject(USER);
    final String userName = user.getAsJsonPrimitive(USER_NAME).getAsString();
    final String userId = user.getAsJsonPrimitive(USER_ID).getAsString();
    sf.setAttribute(TwitterFeatureIngester.FEAT_USER_NAME, utf8(userName));
    sf.setAttribute(TwitterFeatureIngester.FEAT_USER_ID, userId);

    sf.setAttribute(TwitterFeatureIngester.FEAT_TEXT, utf8(obj.get(TEXT).getAsString()));

    // geo info
    final boolean hasGeoJson = obj.has(COORDS_GEO_JSON) && obj.get(COORDS_GEO_JSON) != JsonNull.INSTANCE;
    if (hasGeoJson) {
        final JsonObject geo = obj.getAsJsonObject(COORDS_GEO_JSON);
        final JsonArray coords = geo.getAsJsonArray(COORDS);
        double lat = coords.get(0).getAsDouble();
        double lon = coords.get(1).getAsDouble();

        if (lon != 0.0 && lat != 0.0) {
            final Coordinate coordinate = new Coordinate(lat, lon);
            final Geometry g = new Point(new CoordinateArraySequence(new Coordinate[] { coordinate }), factory);
            sf.setAttribute(TwitterFeatureIngester.FEAT_GEOM, g);
        }
    }

    // time and id
    final String tweetId = obj.get(TWEET_ID).getAsString();
    final Date date = df.parseDateTime(obj.get(CREATED_AT).getAsString()).toDate();
    sf.setAttribute(TwitterFeatureIngester.FEAT_TWEET_ID, tweetId);
    sf.setAttribute(TwitterFeatureIngester.FEAT_DTG, date);

    if (useExtendedFeatures) {
        conditionalSetString(sf, obj, FEAT_IS_RETWEET);
        conditionalSetString(sf, obj, FEAT_SOURCE);
        conditionalSetString(sf, obj, FEAT_RETWEETS);
        conditionalSetString(sf, obj, FEAT_IN_REPLY_TO_USER_ID);
        conditionalSetString(sf, obj, FEAT_IN_REPLY_TO_USER_NAME);
        conditionalSetString(sf, obj, FEAT_IN_REPLY_TO_STATUS);
        conditionalSetString(sf, obj, FEAT_FILTER_LEVEL);
        conditionalSetString(sf, obj, FEAT_LANGUAGE);
        conditionalSetString(sf, obj, FEAT_WITHHELD_COPYRIGHT);
        conditionalSetString(sf, obj, FEAT_WITHHELD_SCOPE);
        conditionalSetArray(sf, obj, FEAT_WITHHELD_COUNTRIES);

        JsonElement entities = obj.get("entities");
        if (entities != null && entities != JsonNull.INSTANCE) {
            JsonObject e = (JsonObject) entities;
            conditionalSetObjectArray(sf, e, FEAT_HASHTAGS, "text");
            conditionalSetObjectArray(sf, e, FEAT_URLS, "url");
            conditionalSetObjectArray(sf, e, FEAT_SYMBOLS, "text");
            conditionalSetObjectArray(sf, e, FEAT_USER_MENTIONS, "id");
            conditionalSetObjectArray(sf, e, FEAT_MEDIA, "media_url");
        }
    }

    //((FeatureIdImpl)sf.getIdentifier()).setID(Long.toString(tweetId));
    //sf.getUserData().put(Hints.USE_PROVIDED_FID, Boolean.TRUE);
}

From source file:geomesa.example.twitter.ingest.TwitterParser.java

License:Apache License

private void conditionalSetObjectArray(SimpleFeatureBuilder builder, JsonObject obj, String feature,
        String nestedAttribute) {
    JsonElement object = obj.get(feature);
    if (object != null && object != JsonNull.INSTANCE) {
        List<String> values = new ArrayList<>();
        for (Iterator<JsonElement> iter = ((JsonArray) object).iterator(); iter.hasNext();) {
            JsonElement next = iter.next();
            if (next != null && next != JsonNull.INSTANCE) {
                JsonElement attribute = ((JsonObject) next).get(nestedAttribute);
                if (attribute != null && attribute != JsonNull.INSTANCE) {
                    values.add(attribute.getAsString());
                }//from  w ww .j  ava  2 s . c om
            }
        }
        if (!values.isEmpty()) {
            builder.set(feature, Joiner.on(",").join(values));
        }
    }
}