Java Code Examples for com.google.datastore.v1.Value#Builder

/**
 * Make a list value containing the specified values.
 */
public static Value.Builder makeValue(Value value1, Value value2, Value... rest) {
  ArrayValue.Builder arrayValue = ArrayValue.newBuilder();
  arrayValue.addValues(value1);
  arrayValue.addValues(value2);
  arrayValue.addAllValues(Arrays.asList(rest));
  return Value.newBuilder().setArrayValue(arrayValue);
}
 

/**
 * Make an array value containing the specified values.
 */
public static Value.Builder makeValue(Value.Builder value1, Value.Builder value2,
    Value.Builder... rest) {
  ArrayValue.Builder arrayValue = ArrayValue.newBuilder();
  arrayValue.addValues(value1);
  arrayValue.addValues(value2);
  for (Value.Builder builder : rest) {
    arrayValue.addValues(builder);
  }
  return Value.newBuilder().setArrayValue(arrayValue);
}
 

/**
 * Make a boolean value.
 */
public static Value.Builder makeValue(boolean value) {
  return Value.newBuilder().setBooleanValue(value);
}
 

private void assertTimestampToMilliseconds(long millis, long seconds, int nanos) {
  Value.Builder value = Value.newBuilder().setTimestampValue(Timestamp.newBuilder()
      .setSeconds(seconds)
      .setNanos(nanos));
  assertEquals(millis, DatastoreHelper.toDate(value.build()).getTime());
}
 

/**
 * Makes a GeoPoint value.
 */
public static Value.Builder makeValue(LatLng.Builder value) {
  return makeValue(value.build());
}
 

/**
 * Makes a GeoPoint value.
 */
public static Value.Builder makeValue(LatLng value) {
  return Value.newBuilder().setGeoPointValue(value);
}
 

/**
 * Make a timestamp value given a date.
 */
public static Value.Builder makeValue(Date date) {
  return Value.newBuilder().setTimestampValue(toTimestamp(date.getTime() * 1000L));
}
 

/**
 * Make a ByteString value.
 */
public static Value.Builder makeValue(ByteString blob) {
  return Value.newBuilder().setBlobValue(blob);
}
 

/**
 * Make a entity value.
 */
public static Value.Builder makeValue(Entity.Builder entity) {
  return makeValue(entity.build());
}
 

/**
 * Make an entity value.
 */
public static Value.Builder makeValue(Entity entity) {
  return Value.newBuilder().setEntityValue(entity);
}
 

/**
 * Make a string value.
 */
public static Value.Builder makeValue(String value) {
  return Value.newBuilder().setStringValue(value);
}
 

/**
 * Converts the value of a BigQuery column in Avro format into the value of a Datastore Entity
 * property.
 */
public static Value columnToValue(TableFieldSchema column, Object columnValue)
    throws IllegalArgumentException {
  String columnName = column.getName();
  if (columnValue == null) {
    return Value.newBuilder().setNullValue(NullValue.NULL_VALUE).build();
  } else {
    Value.Builder valueBuilder = Value.newBuilder();
    switch (column.getType()) {
      case "STRING":
        // Datastore string properties greater than 1500 bytes will not be indexed in order to
        // respect the limit imposed on the maximum size of index-able string properties. See
        // https://cloud.google.com/datastore/docs/concepts/limits
        String strValue = columnValue.toString();
        valueBuilder.setStringValue(strValue);
        boolean excludeFromIndexes = strValue.getBytes().length > MAX_STRING_SIZE_BYTES;
        valueBuilder.setExcludeFromIndexes(excludeFromIndexes);
        break;
      case "INTEGER":
      case "INT64":
        valueBuilder.setIntegerValue((long) columnValue);
        break;
      case "FLOAT":
      case "FLOAT64":
        valueBuilder.setDoubleValue((double) columnValue);
        break;
      case "BOOLEAN":
      case "BOOL":
        valueBuilder.setBooleanValue((boolean) columnValue);
        break;
      case "TIMESTAMP":
        // Convert into milliseconds from the BigQuery timestamp, which is in micro seconds
        long timeInMillis = ((long) columnValue) / 1000;
        valueBuilder.setTimestampValue(Timestamps.fromMillis(timeInMillis));
        break;
      case "DATE":
      case "TIME":
      case "DATETIME":
        // Handle these types as STRING by default, no dedicated type exists in Datastore
        valueBuilder.setStringValue(columnValue.toString());
        break;
      default:
        // TODO: handle nested fields (types "RECORD" or "STRUCT")
        throw new IllegalArgumentException(
            String.format(
                "Column [%s] of type [%s] not supported.", column.getName(), column.getType()));
    }
    return valueBuilder.build();
  }
}
 

/**
 * Make a floating point value.
 */
public static Value.Builder makeValue(double value) {
  return Value.newBuilder().setDoubleValue(value);
}
 

/**
 * Make an integer value.
 */
public static Value.Builder makeValue(long key) {
  return Value.newBuilder().setIntegerValue(key);
}
 

/**
 * Make a key value.
 */
public static Value.Builder makeValue(Key.Builder key) {
  return makeValue(key.build());
}
 

/**
 * Make a key value.
 */
public static Value.Builder makeValue(Key key) {
  return Value.newBuilder().setKeyValue(key);
}
 

/**
 * Make an array value containing the specified values.
 */
public static Value.Builder makeValue(Iterable<Value> values) {
  return Value.newBuilder().setArrayValue(ArrayValue.newBuilder().addAllValues(values));
}
 

/**
 * Make a filter on a property for use in a query.
 */
public static Filter.Builder makeFilter(String property, PropertyFilter.Operator operator,
    Value.Builder value) {
  return makeFilter(property, operator, value.build());
}