How to use

getView

method

in

org.spongepowered.api.data.DataContainer

@Test
public void testCreateView() {
  DataContainer container = DataContainer.createNew();
  DataQuery tempQuery = of("foo", "bar", "baz");
  container.createView(tempQuery);
  assertTrue(container.getView(tempQuery).isPresent());
}

@Test
public void testCopy() {
  final DataContainer container = DataContainer.createNew();
  container.set(of("Foo"), "foo");
  final DataContainer newContainer = container.copy();
  assertTrue(container.equals(newContainer));
  container.set(of("Foo", "bar"), "foo.bar");
  final DataView internal = container.getView(of("Foo")).get().copy();
  final DataContainer internalCopy = DataContainer.createNew().set(of("bar"), "foo.bar");
  assertTrue(internal.equals(internalCopy));
}

@Test
public void testAbsents() {
  DataContainer container = DataContainer.createNew();
  DataQuery testQuery = of("foo", "bar", "baz");
  assertTrue(!container.get(testQuery).isPresent());
  assertTrue(!container.getBoolean(testQuery).isPresent());
  assertTrue(!container.getBooleanList(testQuery).isPresent());
  assertTrue(!container.getByteList(testQuery).isPresent());
  assertTrue(!container.getCharacterList(testQuery).isPresent());
  assertTrue(!container.getDouble(testQuery).isPresent());
  assertTrue(!container.getDoubleList(testQuery).isPresent());
  assertTrue(!container.getFloatList(testQuery).isPresent());
  assertTrue(!container.getInt(testQuery).isPresent());
  assertTrue(!container.getIntegerList(testQuery).isPresent());
  assertTrue(!container.getList(testQuery).isPresent());
  assertTrue(!container.getLong(testQuery).isPresent());
  assertTrue(!container.getLongList(testQuery).isPresent());
  assertTrue(!container.getMapList(testQuery).isPresent());
  assertTrue(!container.getShortList(testQuery).isPresent());
  assertTrue(!container.getString(testQuery).isPresent());
  assertTrue(!container.getStringList(testQuery).isPresent());
  assertTrue(!container.getView(testQuery).isPresent());
}

@Override
public Optional<HomeData> from(DataContainer container) {
  if (!container.contains(MyHomes.DEFAULT_HOME, MyHomes.HOMES)) {
    return Optional.empty();
  }
  // Loads the structure defined in toContainer
  this.defaultHome = container.getSerializable(MyHomes.DEFAULT_HOME.getQuery(), Home.class).get();
  // Loads the map of homes
  this.homes = Maps.newHashMap();
  DataView homes = container.getView(MyHomes.HOMES.getQuery()).get();
  for (DataQuery homeQuery : homes.getKeys(false)) {
    homes.getSerializable(homeQuery, Home.class)
        .ifPresent(home -> this.homes.put(homeQuery.toString(), home));
  }
  return Optional.of(this);
}

private DataView formatEntityData() {
  DataView entity = data.getView(DataQueries.Entity).get();
  DataView location = data.getView(DataQueries.Location).get();
  entity.set(DataQueries.WorldUuid, location.getString(DataQueries.WorldUuid).get());
  location.remove(DataQueries.WorldUuid);

DataView location = container.getView(DataQueries.Location).get();

/**
 * Helper method for formatting entity container data.
 * @param entity
 */
private void writeEntity(Entity entity) {
  checkNotNull(entity);
  DataContainer entityData = entity.toContainer();
  Optional<DataView> position = entityData.getView(DataQueries.Position);
  if (position.isPresent()) {
    position.get().set(DataQueries.WorldUuid, entityData.get(DataQueries.WorldUuid).get());
    data.set(DataQueries.Location, position.get());
    entityData.remove(DataQueries.Position);
    entityData.remove(DataQueries.WorldUuid);
  }
  Optional<DataView> optionalUnsafeData = entityData.getView(DataQueries.UnsafeData);
  if (optionalUnsafeData.isPresent()) {
    DataView unsafeData = optionalUnsafeData.get();
    unsafeData.remove(DataQueries.Rotation);
    unsafeData.remove(DataQueries.Pos);
    entityData.set(DataQueries.UnsafeData, unsafeData);
  }
  data.set(DataQueries.Target, entity.getType().getId().replace("_", " "));
  data.set(DataQueries.Entity, entityData);
}

DataView location = container.getView(DataQueries.Location).get();