text: #ifndef CAFFE_DUMMY_DATA_LAYER_HPP_
  #define CAFFE_DUMMY_DATA_LAYER_HPP_
  
  #include <vector>
  
  #include "caffe/blob.hpp"
  #include "caffe/filler.hpp"
  #include "caffe/layer.hpp"
  #include "caffe/proto/caffe.pb.h"
  
  namespace caffe {
  
  /**
   * @brief Provides data to the Net generated by a Filler.
   *
   * TODO(dox): thorough documentation for Forward and proto params.
   */
  template <typename Dtype>
  class DummyDataLayer : public Layer<Dtype> {
   public:
    explicit DummyDataLayer(const LayerParameter& param)
        : Layer<Dtype>(param) {}
    virtual void LayerSetUp(const vector<Blob<Dtype>*>& bottom,
        const vector<Blob<Dtype>*>& top);
    // Data layers should be shared by multiple solvers in parallel
    virtual inline bool ShareInParallel() const { return true; }
    // Data layers have no bottoms, so reshaping is trivial.
    virtual void Reshape(const vector<Blob<Dtype>*>& bottom,
        const vector<Blob<Dtype>*>& top) {}
  
    virtual inline const char* type() const { return "DummyData"; }
    virtual inline int ExactNumBottomBlobs() const { return 0; }
    virtual inline int MinTopBlobs() const { return 1; }
  
   protected:
    virtual void Forward_cpu(const vector<Blob<Dtype>*>& bottom,
        const vector<Blob<Dtype>*>& top);
    virtual void Backward_cpu(const vector<Blob<Dtype>*>& top,
        const vector<bool>& propagate_down, const vector<Blob<Dtype>*>& bottom) {}
    virtual void Backward_gpu(const vector<Blob<Dtype>*>& top,
        const vector<bool>& propagate_down, const vector<Blob<Dtype>*>& bottom) {}
  
    vector<shared_ptr<Filler<Dtype> > > fillers_;
    vector<bool> refill_;
  };
  
  }  // namespace caffe
  
  #endif  // CAFFE_DUMMY_DATA_LAYER_HPP_
  