| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| |
| #ifndef IMPALA_UDF_UDF_DEBUG_H |
| #define IMPALA_UDF_UDF_DEBUG_H |
| |
| // THIS FILE IS USED BY THE STANDALONE IMPALA UDF DEVELOPMENT KIT. |
| // IT MUST BE BUILDABLE WITH C++98 AND WITHOUT ANY INTERNAL IMPALA HEADERS. |
| |
| #include "udf/udf.h" |
| |
| #include <string> |
| #include <sstream> |
| |
| namespace impala_udf { |
| |
| template<typename T> |
| inline std::string DebugString(const T& val) { |
| if (val.is_null) return "NULL"; |
| std::stringstream ss; |
| ss << val.val; |
| return ss.str(); |
| } |
| |
| template<> |
| inline std::string DebugString(const StringVal& val) { |
| if (val.is_null) return "NULL"; |
| return std::string(reinterpret_cast<const char*>(val.ptr), val.len); |
| } |
| |
| } |
| |
| #endif |
| |