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225 lines
8.5 KiB
C++
225 lines
8.5 KiB
C++
//
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// Copyright (C) 2018 Boran Adas, Google Summer of Code
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//
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// @@ All Rights Reserved @@
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// This file is part of the RDKit.
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// The contents are covered by the terms of the BSD license
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// which is included in the file license.txt, found at the root
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// of the RDKit source tree.
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//
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#include <GraphMol/Fingerprints/RDKitFPGenerator.h>
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#include <GraphMol/RDKitBase.h>
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#include <GraphMol/Fingerprints/FingerprintGenerator.h>
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#include <RDGeneral/hash/hash.hpp>
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#include <cstdint>
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#include <GraphMol/QueryOps.h>
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#include <DataStructs/ExplicitBitVect.h>
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#include <DataStructs/BitOps.h>
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#include <GraphMol/Subgraphs/Subgraphs.h>
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#include <GraphMol/Subgraphs/SubgraphUtils.h>
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#include <GraphMol/Substruct/SubstructMatch.h>
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#include <GraphMol/SmilesParse/SmilesParse.h>
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#include <RDGeneral/Invariant.h>
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#include <RDGeneral/BoostStartInclude.h>
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#include <boost/random.hpp>
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#include <RDGeneral/BoostEndInclude.h>
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#include <climits>
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#include <RDGeneral/hash/hash.hpp>
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#include <RDGeneral/types.h>
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#include <algorithm>
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#include <boost/dynamic_bitset.hpp>
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#include <GraphMol/Fingerprints/FingerprintUtil.h>
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namespace RDKit {
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namespace RDKitFP {
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std::vector<std::uint32_t> *RDKitFPAtomInvGenerator::getAtomInvariants(
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const ROMol &mol) const {
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auto *result = new std::vector<std::uint32_t>();
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result->reserve(mol.getNumAtoms());
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for (ROMol::ConstAtomIterator atomIt = mol.beginAtoms();
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atomIt != mol.endAtoms(); ++atomIt) {
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unsigned int aHash = ((*atomIt)->getAtomicNum() % 128) << 1 |
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static_cast<unsigned int>((*atomIt)->getIsAromatic());
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result->push_back(aHash);
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}
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return result;
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}
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std::string RDKitFPAtomInvGenerator::infoString() const {
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return "RDKitFPAtomInvGenerator";
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}
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RDKitFPAtomInvGenerator *RDKitFPAtomInvGenerator::clone() const {
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return new RDKitFPAtomInvGenerator();
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}
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template <typename OutputType>
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OutputType RDKitFPArguments<OutputType>::getResultSize() const {
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return std::numeric_limits<OutputType>::max();
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}
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template <typename OutputType>
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std::string RDKitFPArguments<OutputType>::infoString() const {
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return "RDKitFPArguments minPath=" + std::to_string(d_minPath) +
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" maxPath=" + std::to_string(d_maxPath) +
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" useHs=" + std::to_string(df_useHs) +
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" branchedPaths=" + std::to_string(df_branchedPaths) +
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" useBondOrder=" + std::to_string(df_useBondOrder);
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}
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template <typename OutputType>
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RDKitFPArguments<OutputType>::RDKitFPArguments(
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unsigned int minPath, unsigned int maxPath, bool useHs, bool branchedPaths,
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bool useBondOrder, bool countSimulation,
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const std::vector<std::uint32_t> countBounds, std::uint32_t fpSize,
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std::uint32_t numBitsPerFeature)
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: FingerprintArguments<OutputType>(countSimulation, countBounds, fpSize,
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numBitsPerFeature),
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d_minPath(minPath),
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d_maxPath(maxPath),
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df_useHs(useHs),
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df_branchedPaths(branchedPaths),
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df_useBondOrder(useBondOrder) {
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PRECONDITION(minPath != 0, "minPath==0");
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PRECONDITION(maxPath >= minPath, "maxPath<minPath");
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}
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template <typename OutputType>
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OutputType RDKitFPAtomEnv<OutputType>::getBitId(
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FingerprintArguments<OutputType> *, // arguments
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const std::vector<std::uint32_t> *, // atomInvariants
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const std::vector<std::uint32_t> *, // bondInvariants
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const AdditionalOutput *, // additionalOutput
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const bool // hashResults
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) const {
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// todo set additional outputs
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return d_bitId;
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}
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template <typename OutputType>
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RDKitFPAtomEnv<OutputType>::RDKitFPAtomEnv(const OutputType bitId,
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boost::dynamic_bitset<> atomsInPath)
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: d_bitId(bitId), d_atomsInPath(std::move(atomsInPath)) {}
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template <typename OutputType>
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std::string RDKitFPEnvGenerator<OutputType>::infoString() const {
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return "RDKitFPEnvGenerator";
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}
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template <typename OutputType>
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std::vector<AtomEnvironment<OutputType> *>
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RDKitFPEnvGenerator<OutputType>::getEnvironments(
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const ROMol &mol, FingerprintArguments<OutputType> *arguments,
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const std::vector<std::uint32_t> *fromAtoms,
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const std::vector<std::uint32_t> *, // ignoreAtoms
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const int, // confId
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const AdditionalOutput *, // additionalOutput
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const std::vector<std::uint32_t> *atomInvariants,
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const std::vector<std::uint32_t> *, // bondInvariants
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const bool // hashResults
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) const {
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PRECONDITION(!atomInvariants || atomInvariants->size() >= mol.getNumAtoms(),
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"bad atomInvariants size");
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auto *rDKitFPArguments =
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dynamic_cast<RDKitFPArguments<OutputType> *>(arguments);
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std::vector<AtomEnvironment<OutputType> *> result;
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// get all paths
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INT_PATH_LIST_MAP allPaths;
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RDKitFPUtils::enumerateAllPaths(
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mol, allPaths, fromAtoms, rDKitFPArguments->df_branchedPaths,
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rDKitFPArguments->df_useHs, rDKitFPArguments->d_minPath,
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rDKitFPArguments->d_maxPath);
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// identify query bonds
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std::vector<short> isQueryBond(mol.getNumBonds(), 0);
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std::vector<const Bond *> bondCache;
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RDKitFPUtils::identifyQueryBonds(mol, bondCache, isQueryBond);
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boost::dynamic_bitset<> atomsInPath(mol.getNumAtoms());
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for (INT_PATH_LIST_MAP_CI paths = allPaths.begin(); paths != allPaths.end();
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paths++) {
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BOOST_FOREACH (const PATH_TYPE &path, paths->second) {
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// the bond hashes of the path
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std::vector<std::uint32_t> bondHashes = RDKitFPUtils::generateBondHashes(
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mol, atomsInPath, bondCache, isQueryBond, path,
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rDKitFPArguments->df_useBondOrder, atomInvariants);
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if (!bondHashes.size()) {
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continue;
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}
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// hash the path to generate a seed:
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unsigned long seed;
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if (path.size() > 1) {
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std::sort(bondHashes.begin(), bondHashes.end());
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// finally, we will add the number of distinct atoms in the path at the
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// end
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// of the vect. This allows us to distinguish C1CC1 from CC(C)C
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bondHashes.push_back(static_cast<std::uint32_t>(atomsInPath.count()));
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seed = gboost::hash_range(bondHashes.begin(), bondHashes.end());
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} else {
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seed = bondHashes[0];
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}
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result.push_back(new RDKitFPAtomEnv<OutputType>(
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static_cast<OutputType>(seed), atomsInPath));
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}
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}
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return result;
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}
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template <typename OutputType>
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FingerprintGenerator<OutputType> *getRDKitFPGenerator(
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unsigned int minPath, unsigned int maxPath, bool useHs, bool branchedPaths,
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bool useBondOrder, AtomInvariantsGenerator *atomInvariantsGenerator,
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bool countSimulation, const std::vector<std::uint32_t> countBounds,
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std::uint32_t fpSize, std::uint32_t numBitsPerFeature,
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bool ownsAtomInvGen) {
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AtomEnvironmentGenerator<OutputType> *envGenerator =
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new RDKitFPEnvGenerator<OutputType>();
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FingerprintArguments<OutputType> *arguments =
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new RDKitFPArguments<OutputType>(minPath, maxPath, useHs, branchedPaths,
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useBondOrder, countSimulation,
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countBounds, fpSize, numBitsPerFeature);
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bool ownsAtomInvGenerator = ownsAtomInvGen;
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if (!atomInvariantsGenerator) {
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atomInvariantsGenerator = new RDKitFPAtomInvGenerator();
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ownsAtomInvGenerator = true;
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}
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return new FingerprintGenerator<OutputType>(envGenerator, arguments,
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atomInvariantsGenerator, nullptr,
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ownsAtomInvGenerator, false);
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}
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template RDKIT_FINGERPRINTS_EXPORT FingerprintGenerator<std::uint32_t>
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*getRDKitFPGenerator(unsigned int minPath, unsigned int maxPath, bool useHs,
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bool branchedPaths, bool useBondOrder,
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AtomInvariantsGenerator *atomInvariantsGenerator,
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bool countSimulation,
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const std::vector<std::uint32_t> countBounds,
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std::uint32_t fpSize, std::uint32_t numBitsPerFeature,
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bool ownsAtomInvGen);
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template RDKIT_FINGERPRINTS_EXPORT FingerprintGenerator<std::uint64_t>
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*getRDKitFPGenerator(unsigned int minPath, unsigned int maxPath, bool useHs,
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bool branchedPaths, bool useBondOrder,
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AtomInvariantsGenerator *atomInvariantsGenerator,
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bool countSimulation,
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const std::vector<std::uint32_t> countBounds,
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std::uint32_t fpSize, std::uint32_t numBitsPerFeature,
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bool ownsAtomInvGen);
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} // namespace RDKitFP
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} // namespace RDKit
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