| /** |
| * 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 _ACTIVEMQ_UTIL_PRIMITIVEVALUECONVERTER_H_ |
| #define _ACTIVEMQ_UTIL_PRIMITIVEVALUECONVERTER_H_ |
| |
| #include <activemq/util/Config.h> |
| |
| #include <activemq/util/PrimitiveValueNode.h> |
| #include <decaf/lang/exceptions/UnsupportedOperationException.h> |
| #include <string> |
| |
| namespace activemq { |
| namespace util { |
| |
| /** |
| * Class controls the conversion of data contained in a PrimitiveValueNode |
| * from one type to another. If the conversion is supported then calling |
| * the convert method will throw an UnsupportedOperationException to indicate |
| * that its not possible to perform the conversion. |
| * |
| * This class is used to implement the rules of conversion on CMS Message |
| * properties, the following conversion table must be implemented. A value |
| * written as the row type can be read in the column type. |
| * |
| * | | boolean byte short int long float double String |
| * |---------------------------------------------------------- |
| * |boolean | X X |
| * |byte | X X X X X |
| * |short | X X X X |
| * |int | X X X |
| * |long | X X |
| * |float | X X X |
| * |double | X X |
| * |String | X X X X X X X X |
| * |---------------------------------------------------------- |
| * |
| * @since 3.0 |
| */ |
| class AMQCPP_API PrimitiveValueConverter { |
| public: |
| |
| PrimitiveValueConverter() {} |
| virtual ~PrimitiveValueConverter() {} |
| |
| template<typename TO> |
| TO convert(const PrimitiveValueNode& value DECAF_UNUSED) const { |
| |
| throw decaf::lang::exceptions::UnsupportedOperationException( |
| __FILE__, __LINE__, "Invalid Conversion"); |
| } |
| }; |
| |
| template<> |
| bool PrimitiveValueConverter::convert<bool>(const PrimitiveValueNode& value) const; |
| template<> |
| unsigned char PrimitiveValueConverter::convert<unsigned char>(const PrimitiveValueNode& value) const; |
| template<> |
| char PrimitiveValueConverter::convert<char>(const PrimitiveValueNode& value) const; |
| template<> |
| short PrimitiveValueConverter::convert<short>(const PrimitiveValueNode& value) const; |
| template<> |
| int PrimitiveValueConverter::convert<int>(const PrimitiveValueNode& value) const; |
| template<> |
| long long PrimitiveValueConverter::convert<long long>(const PrimitiveValueNode& value) const; |
| template<> |
| float PrimitiveValueConverter::convert<float>(const PrimitiveValueNode& value) const; |
| template<> |
| double PrimitiveValueConverter::convert<double>(const PrimitiveValueNode& value) const; |
| template<> |
| std::string PrimitiveValueConverter::convert<std::string>(const PrimitiveValueNode& value) const; |
| template<> |
| std::vector<unsigned char> PrimitiveValueConverter::convert<std::vector<unsigned char> >(const PrimitiveValueNode& value) const; |
| |
| }} |
| |
| #endif /* _ACTIVEMQ_UTIL_PRIMITIVEVALUECONVERTER_H_ */ |