com.google.cloud.datastore.BooleanValue Java Examples

private static Map<String, Object> getProperties(Entity entity)
    throws IOException, ClassNotFoundException {
  if (entity == null) {
    return null;
  }
  ImmutableMap.Builder<String, Object> builder = new ImmutableMap.Builder<>();
  for (String property : entity.getNames()) {
    // builder.put(property, entity.getValue(property));
    if (entity.getValue(property) instanceof StringValue) {
      builder.put(property, (String) entity.getString(property));
    } else if (entity.getValue(property) instanceof LongValue) {
      // This conversion is safe because of integer to long conversion above
      builder.put(property, new Long(entity.getLong(property)).intValue());
    } else if (entity.getValue(property) instanceof DoubleValue) {
      builder.put(property, (Double) entity.getDouble(property));
    } else if (entity.getValue(property) instanceof BooleanValue) {
      builder.put(property, (Boolean) entity.getBoolean(property));
    } else if (entity.getValue(property) instanceof TimestampValue) {
      builder.put(property, (Timestamp) entity.getTimestamp(property));
    } else {
      Blob blob = entity.getBlob(property);
      Object obj = null;
      try (ObjectInputStream in = new ObjectInputStream(blob.asInputStream())) {
        obj = in.readObject();
      }
      builder.put(property, obj); // BlobValue
    }
  }

  return builder.build();
}
 

@Override
public ValueBuilder<?, ?, ?> toDatastore(Object input) {
  ValueBuilder<?, ?, ?> builder;
  if (input == null) {
    builder = NullValue.newBuilder();
  } else if (input instanceof Long) {
    builder = LongValue.newBuilder((long) input);
  } else if (input instanceof Double) {
    builder = DoubleValue.newBuilder((double) input);
  } else if (input instanceof Boolean) {
    builder = BooleanValue.newBuilder((boolean) input);
  } else if (input instanceof String) {
    builder = StringValue.newBuilder((String) input);
  } else if (input instanceof DatastoreKey) {
    builder = KeyValue.newBuilder(((DatastoreKey) input).nativeKey());
  } else if (input instanceof GeoLocation) {
    GeoLocation geoLocation = (GeoLocation) input;
    builder = LatLngValue
        .newBuilder(LatLng.of(geoLocation.getLatitude(), geoLocation.getLongitude()));
  } else if (input instanceof Map) {
    @SuppressWarnings("unchecked")
    Map<String, ?> map = (Map<String, ?>) input;
    FullEntity.Builder<IncompleteKey> entityBuilder = FullEntity.newBuilder();
    for (Map.Entry<String, ?> entry : map.entrySet()) {
      String key = entry.getKey();
      entityBuilder.set(key, toDatastore(entry.getValue()).build());
    }
    builder = EntityValue.newBuilder(entityBuilder.build());
  } else {
    throw new MappingException(String.format("Unsupported type: %s", input.getClass().getName()));
  }
  return builder;
}
 

@Override
public Object toModel(Value<?> input) {
  Object javaValue;
  if (input instanceof NullValue) {
    javaValue = null;
  } else if (input instanceof StringValue) {
    javaValue = input.get();
  } else if (input instanceof LongValue) {
    javaValue = input.get();
  } else if (input instanceof DoubleValue) {
    javaValue = input.get();
  } else if (input instanceof BooleanValue) {
    javaValue = input.get();
  } else if (input instanceof KeyValue) {
    javaValue = new DefaultDatastoreKey(((KeyValue) input).get());
  } else if (input instanceof LatLngValue) {
    LatLng latLong = ((LatLngValue) input).get();
    javaValue = new GeoLocation(latLong.getLatitude(), latLong.getLongitude());
  } else if (input instanceof EntityValue) {
    EntityValue entityValue = (EntityValue) input;
    FullEntity<?> entity = entityValue.get();
    Map<String, Object> map = new HashMap<>();
    for (String property : entity.getNames()) {
      map.put(property, toModel(entity.getValue(property)));
    }
    javaValue = map;
  } else {
    throw new MappingException(String.format("Unsupported type %s", input.getClass().getName()));
  }
  return javaValue;
}
 

@Override
public ValueBuilder<?, ?, ?> toDatastore(Object input) {
  if (input == null) {
    return NullValue.newBuilder();
  }
  return BooleanValue.newBuilder((boolean) input);
}
 

@Override
public Object toModel(Value<?> input) {
  if (input instanceof NullValue) {
    return null;
  }
  return ((BooleanValue) input).get();
}