| /************************************************************** |
| * |
| * 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 INCLUDED_OUTPUT_WITH_DEPTH |
| #define INCLUDED_OUTPUT_WITH_DEPTH |
| |
| #include <vector> |
| #include <iostream> |
| |
| namespace writerfilter |
| { |
| |
| using namespace ::std; |
| |
| template <typename T> |
| class OutputWithDepth |
| { |
| typedef ::std::vector<T> Group_t; |
| Group_t mGroup; |
| |
| unsigned int mnCurrentDepth; |
| unsigned int mnGroupDepth; |
| |
| T mOpenTag; |
| T mCloseTag; |
| |
| protected: |
| virtual void output(const T & aItem) const = 0; |
| void outputGroup(); |
| void finalize(); |
| |
| public: |
| OutputWithDepth(const T & aOpenTag, const T & aCloseTag); |
| virtual ~OutputWithDepth(); |
| |
| void openGroup(); |
| void closeGroup(); |
| void addItem(const T & aItem); |
| void setDepth(unsigned int nDepth); |
| }; |
| |
| template <typename T> |
| OutputWithDepth<T>::OutputWithDepth(const T & aOpenTag, const T & aEndTag) |
| : mOpenTag(aOpenTag), mCloseTag(aEndTag) |
| { |
| } |
| |
| template <typename T> |
| OutputWithDepth<T>::~OutputWithDepth() |
| { |
| } |
| |
| template <typename T> |
| void OutputWithDepth<T>::finalize() |
| { |
| outputGroup(); |
| } |
| |
| template <typename T> |
| void OutputWithDepth<T>::openGroup() |
| { |
| outputGroup(); |
| mnGroupDepth = 0; |
| } |
| |
| template <typename T> |
| void OutputWithDepth<T>::closeGroup() |
| { |
| if (mnGroupDepth > mnCurrentDepth) |
| for (unsigned int i = 0; i < mnGroupDepth - mnCurrentDepth; ++i) |
| output(mOpenTag); |
| else if (mnGroupDepth < mnCurrentDepth) |
| for (unsigned int i = 0; i < mnCurrentDepth - mnGroupDepth; ++i) |
| output(mCloseTag); |
| |
| outputGroup(); |
| |
| mnCurrentDepth = mnGroupDepth; |
| } |
| |
| template <typename T> |
| void OutputWithDepth<T>::addItem(const T & aItem) |
| { |
| mGroup.push_back(aItem); |
| } |
| |
| template <typename T> |
| void OutputWithDepth<T>::setDepth(unsigned int nDepth) |
| { |
| mnGroupDepth = nDepth; |
| } |
| |
| template <typename T> |
| void OutputWithDepth<T>::outputGroup() |
| { |
| typename Group_t::iterator aItEnd = mGroup.end(); |
| |
| for (typename Group_t::iterator aIt = mGroup.begin(); aIt != aItEnd; aIt++) |
| { |
| output(*aIt); |
| } |
| |
| mGroup.clear(); |
| } |
| } |
| #endif // INCLUDED_OUTPUT_WITH_DEPTH |