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Merge pull request #42545 from mmusich/mm_ApproxCluster_dataformat_13…
…_2_X [13.2.X] Add `SiStripApproximateClusterCollection` as a simple format for RAW
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107 changes: 107 additions & 0 deletions
107
DataFormats/SiStripCluster/interface/SiStripApproximateClusterCollection.h
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,107 @@ | ||
| #ifndef DataFormats_SiStripCluster_SiStripApproximateClusterCollection_h | ||
| #define DataFormats_SiStripCluster_SiStripApproximateClusterCollection_h | ||
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| #include <vector> | ||
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| #include "DataFormats/SiStripCluster/interface/SiStripApproximateCluster.h" | ||
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| /** | ||
| * This class provides a minimal interface that resembles | ||
| * edmNew::DetSetVector, but is crafted such that we are comfortable | ||
| * to provide an infinite backwards compatibility guarantee for it | ||
| * (like all RAW data). Any modifications need to be made with care. | ||
| * Please consult core software group if in doubt. | ||
| **/ | ||
| class SiStripApproximateClusterCollection { | ||
| public: | ||
| // Helper classes to make creation and iteration easier | ||
| class Filler { | ||
| public: | ||
| void push_back(SiStripApproximateCluster const& cluster) { clusters_.push_back(cluster); } | ||
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| private: | ||
| friend SiStripApproximateClusterCollection; | ||
| Filler(std::vector<SiStripApproximateCluster>& clusters) : clusters_(clusters) {} | ||
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| std::vector<SiStripApproximateCluster>& clusters_; | ||
| }; | ||
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| class const_iterator; | ||
| class DetSet { | ||
| public: | ||
| using const_iterator = std::vector<SiStripApproximateCluster>::const_iterator; | ||
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| unsigned int id() const { return coll_->detIds_[detIndex_]; } | ||
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| const_iterator begin() const { return coll_->clusters_.begin() + clusBegin_; } | ||
| const_iterator cbegin() const { return begin(); } | ||
| const_iterator end() const { return coll_->clusters_.begin() + clusEnd_; } | ||
| const_iterator cend() const { return end(); } | ||
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| private: | ||
| friend SiStripApproximateClusterCollection::const_iterator; | ||
| DetSet(SiStripApproximateClusterCollection const* coll, unsigned int detIndex) | ||
| : coll_(coll), | ||
| detIndex_(detIndex), | ||
| clusBegin_(coll_->beginIndices_[detIndex]), | ||
| clusEnd_(detIndex == coll_->beginIndices_.size() - 1 ? coll->clusters_.size() | ||
| : coll_->beginIndices_[detIndex + 1]) {} | ||
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| SiStripApproximateClusterCollection const* const coll_; | ||
| unsigned int const detIndex_; | ||
| unsigned int const clusBegin_; | ||
| unsigned int const clusEnd_; | ||
| }; | ||
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| class const_iterator { | ||
| public: | ||
| DetSet operator*() const { return DetSet(coll_, index_); } | ||
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| const_iterator& operator++() { | ||
| ++index_; | ||
| if (index_ == coll_->detIds_.size()) { | ||
| *this = const_iterator(); | ||
| } | ||
| return *this; | ||
| } | ||
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| const_iterator operator++(int) { | ||
| const_iterator clone = *this; | ||
| ++(*this); | ||
| return clone; | ||
| } | ||
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| bool operator==(const_iterator const& other) const { return coll_ == other.coll_ and index_ == other.index_; } | ||
| bool operator!=(const_iterator const& other) const { return not operator==(other); } | ||
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| private: | ||
| friend SiStripApproximateClusterCollection; | ||
| // default-constructed object acts as the sentinel | ||
| const_iterator() = default; | ||
| const_iterator(SiStripApproximateClusterCollection const* coll) : coll_(coll) {} | ||
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| SiStripApproximateClusterCollection const* coll_ = nullptr; | ||
| unsigned int index_ = 0; | ||
| }; | ||
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| // Actual public interface | ||
| SiStripApproximateClusterCollection() = default; | ||
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| void reserve(std::size_t dets, std::size_t clusters); | ||
| Filler beginDet(unsigned int detId); | ||
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| const_iterator begin() const { return const_iterator(this); } | ||
| const_iterator cbegin() const { return begin(); } | ||
| const_iterator end() const { return const_iterator(); } | ||
| const_iterator cend() const { return end(); } | ||
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| private: | ||
| // The detIds_ and beginIndices_ have one element for each Det. An | ||
| // element of beginIndices_ points to the first cluster of the Det | ||
| // in clusters_. | ||
| std::vector<unsigned int> detIds_; // DetId for the Det | ||
| std::vector<unsigned int> beginIndices_; | ||
| std::vector<SiStripApproximateCluster> clusters_; | ||
| }; | ||
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| #endif |
13 changes: 13 additions & 0 deletions
13
DataFormats/SiStripCluster/src/SiStripApproximateClusterCollection.cc
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| #include "DataFormats/SiStripCluster/interface/SiStripApproximateClusterCollection.h" | ||
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| void SiStripApproximateClusterCollection::reserve(std::size_t dets, std::size_t clusters) { | ||
| detIds_.reserve(dets); | ||
| beginIndices_.reserve(dets); | ||
| clusters_.reserve(clusters); | ||
| } | ||
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| SiStripApproximateClusterCollection::Filler SiStripApproximateClusterCollection::beginDet(unsigned int detId) { | ||
| detIds_.push_back(detId); | ||
| beginIndices_.push_back(clusters_.size()); | ||
| return Filler(clusters_); | ||
| } |
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