Java IAtom类代码示例

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public IAtomContainer getStructureAsAromaticIAtomContainer() {
	IChemObjectBuilder builder = DefaultChemObjectBuilder.getInstance();
	IAtomContainer fragmentStructure = builder.newInstance(IAtomContainer.class);
	
	for(int i = 0; i < this.bondsBitArray.getSize(); i++) {
		if(this.bondsBitArray.get(i)) {
			IBond curBond = this.precursorMolecule.getStructureAsIAtomContainer().getBond(i);
			if(this.precursorMolecule.isAromaticBond(i)) curBond.setIsAromatic(true);
			for(IAtom atom : curBond.atoms()) {
				atom.setImplicitHydrogenCount(0);
				if(this.precursorMolecule.isAromaticBond(i)) atom.setIsAromatic(true);
				fragmentStructure.addAtom(atom);
			}
			fragmentStructure.addBond(curBond);
		}
	}
//	loss of hydrogens
//	MoleculeFunctions.prepareAtomContainer(fragmentStructure);
	
	return fragmentStructure;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public IAtomContainer getStructureAsIAtomContainer() {
	IChemObjectBuilder builder = DefaultChemObjectBuilder.getInstance();
	IAtomContainer fragmentStructure = builder.newInstance(IAtomContainer.class);
	
	for(int i = 0; i < this.bondsBitArray.getSize(); i++) {
		if(this.bondsBitArray.get(i)) {
			IBond curBond = this.precursorMolecule.getStructureAsIAtomContainer().getBond(i);
			for(IAtom atom : curBond.atoms()) {
				fragmentStructure.addAtom(atom);
			}
			fragmentStructure.addBond(curBond);
		}
	}
//	loss of hydrogens
//	MoleculeFunctions.prepareAtomContainer(fragmentStructure);
	
	return fragmentStructure;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public static void determineCarbonAtomStatistics(IAtomContainer mol, ICandidate candidate, java.util.Vector<Integer> aromaticAtomIndexes) {
	int numberC = 0;
	int numberAliphaticCH = 0;
	int numberAromaticCH = 0;
	for(int i = 0; i < mol.getAtomCount(); i++) {
		IAtom atom = mol.getAtom(i);
		if(atom.getSymbol().equals("C")) {
			numberC++;
			int hydrogens = atom.getImplicitHydrogenCount();
			if(aromaticAtomIndexes.contains(i)) numberAromaticCH += hydrogens;
			else numberAliphaticCH += hydrogens;
		}
	}

	candidate.setProperty("#C", numberC);
	candidate.setProperty("#aliphaticCH", numberAliphaticCH);
	candidate.setProperty("#aromaticCH", numberAromaticCH);
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public static IAtomContainer getAtomContainerFromSMILES(String smiles) throws Exception {
	IAtomContainer molecule = sp.parseSmiles(smiles);
	for(int i = 0; i < molecule.getAtomCount(); i++) {
		if(molecule.getAtom(i).getSymbol().equals("H")) continue;
		else {
			java.util.List<IAtom> atoms = molecule.getConnectedAtomsList(molecule.getAtom(i));
			short numDs = 0;
			for(IAtom atom : atoms)
				if(atom.getSymbol().equals("H") && (atom.getMassNumber() != null && atom.getMassNumber() == 2))
					numDs++;
			molecule.getAtom(i).setProperty(VariableNames.DEUTERIUM_COUNT_NAME, numDs);
		}
	}
	try {
		AtomContainerManipulator.percieveAtomTypesAndConfigureAtoms(molecule);
		Aromaticity arom = new Aromaticity(ElectronDonation.cdk(), Cycles.cdkAromaticSet());
		arom.apply(molecule);
	} catch (CDKException e) {
		e.printStackTrace();
	}
	return molecule;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public static void removeHydrogens(IAtomContainer molecule) {
	java.util.Vector<IAtom> hydrogenAtoms = new java.util.Vector<IAtom>();
	java.util.Iterator<IAtom> atoms = molecule.atoms().iterator();
	while(atoms.hasNext()) {
		IAtom currentAtom = atoms.next();
		if(currentAtom.getSymbol().equals("H")) hydrogenAtoms.add(currentAtom);
		java.util.List<IAtom> neighbours = molecule.getConnectedAtomsList(currentAtom);
		int numberHydrogens = 0;
		for(int k = 0; k < neighbours.size(); k++) {
			if(neighbours.get(k).getSymbol().equals("H")) numberHydrogens++;
		}
		currentAtom.setImplicitHydrogenCount(numberHydrogens);
	}
	for(IAtom atom : hydrogenAtoms) {
		molecule.removeAtomAndConnectedElectronContainers(atom);
	}
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
@Override
public ArrayList<IFeature> getFingerprint(IAtomContainer ac) {
	final ArrayList<IFeature> result = new ArrayList<IFeature>();
	for (int i = 0; i < ac.getAtomCount(); i++) {
		final List<List<IAtom>> lae = PathTools.getPathsOfLengthUpto(ac, ac.getAtom(i), super.getSearchDepth());
		HashMap<Integer, List<List<IAtom>>> laeMap = getFeaturesBySearchDepth(lae);
		Set<Integer> keySet = laeMap.keySet();

		for (Integer key : keySet) {
			List<String> localFragment = new ArrayList<String>();
			try {
				localFragment = this.getPaths(laeMap.get(key), ac);
			} catch (MoltyperException e) {
				e.printStackTrace();
			}
			final String shellD = localFragment.toString().replaceAll(" ", "");
			final NumericStringFeature feature = new NumericStringFeature(shellD, 1.0);
			result.add(feature);
		}
	}
	return result;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public double getCorrectness(FamilyDB families) {
	if (!this.alreadyCalculate)
		this.calculateGreedyCoverage();
	
	if (this.corrects == null)
		this.calculateCorrectIncorrectNotFound(families);
	
	int pepAtoms = 0;
	for (@SuppressWarnings("unused") IAtom a : this.co.getMolecule().atoms())
		pepAtoms++;
	
	int corAtoms = 0;
	for (Residue res : this.corrects.keySet()) {
		int resAtoms = res.getMolecule().getAtomCount();
		corAtoms += resAtoms * this.corrects.get(res);
	}
	
	double ratio = new Double(corAtoms) / new Double(pepAtoms);
	return ratio;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
@Test
public void initMappingTest() {
	List<MappedChain> mbs = Isomorphism.searchFromPreviousMapping(this.mb0, this.ext1, MatchingType.STRONG);
	if (mbs.size() != 2)
		fail("2 matches needed");
	
	boolean isGood = true;
	for (MappedChain mb : mbs) {
		IMolecule mol = mb.getChemObject().getMolecule();
		IAtom a1 = (mol.getAtom(mb.getAtomsMapping().get(0)));
		IAtom a2 = (mol.getAtom(mb.getAtomsMapping().get(1)));
		if (!((a1.getSymbol().equals("C") && a2.getSymbol().equals("S")) ||
				(a1.getSymbol().equals("S") && a2.getSymbol().equals("C"))))
			isGood = false;
	}
	
	Assert.assertTrue(isGood);
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
private void calculateFingerprint(IAtomContainer ac) throws FingerPrinterException, MoltyperException,CDKException{
	this.iteration=0;
	this.completeFeatures=new ArrayList<IFeature>();
	this.molecule=ac;
	this.featuresOfLastIteration = new HashMap<IAtom,ECFPFeature>();
	
	computeInitialIdentifiers();
	
	for(int i=0;i<this.getSearchDepth();i++){
		iteration++;
		computeIteration();
	}
	
	// wegner: this is still ugly, I would prefer the molecule is persistent within this object, which it is only 
	//      for the lifetime of a calculateFingerprint function call, very strange design, and not in a good way.
	//      Anyway, workaround is to pass a molecule object along to the ECFPFeature as workaround.
	this.featuresOfLastIteration=null;
	this.molecule=null;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
private ECFPFeature computeIterationForAtom(IAtom atom) throws FingerPrinterException, MoltyperException{
	ECFPFeature oldFeature = featuresOfLastIteration.get(atom);
       IAtomContainer newSubstructure = oldFeature.getNonDeepCloneOfSubstructure();
	List<BondOrderIdentifierTupel> connectivity = new ArrayList<BondOrderIdentifierTupel>();

	for(IAtom connectedAtom: molecule.getConnectedAtomsList(atom)){
		int identifierOfConnectedAtom = featuresOfLastIteration.get(connectedAtom).hashCode();
		//System.out.println("iterate "+connectedAtom.getAtomTypeName()+",id="+identifierOfConnectedAtom+",id="+featuresOfLastIteration.get(connectedAtom).featureToString(true));
		connectivity.add(new BondOrderIdentifierTupel(this.getBondOrder(molecule.getBond(atom,connectedAtom)),identifierOfConnectedAtom));
           IAtomContainer structure = this.featuresOfLastIteration.get(connectedAtom).representedSubstructure();
		for(IAtom a: structure.atoms()){
			if(!newSubstructure.contains(a))
				newSubstructure.addAtom(a);
		}
		for(IBond b: structure.bonds()){
			if(!newSubstructure.contains(b))
				newSubstructure.addBond(b);
		}
	}
	
	ECFPFeature newFeature = new ECFPFeature(this, molecule, atom, newSubstructure, this.iteration,oldFeature.hashCode(), connectivity);
	return newFeature;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
@Test
public void linksLoadingTest () {
	ResidueJsonLoader rjl = new ResidueJsonLoader(this.rules, this.monos);
	rjl.saveFile(this.families, "tmp.json");
	Residue.resetResidues();
	FamilyDB loaded = rjl.loadFile("tmp.json");
	new File("tmp.json").delete();
	
	Family famTyr = null;
	try {
		famTyr = loaded.getObject("Tyr");
	} catch (NullPointerException e) {
		e.printStackTrace();
	}
	
	Residue tyrN = null;
	for (Residue res : famTyr.getResidues())
		if ("Tyr_pepN".equals(res.getName())) {
			tyrN = res;
			break;
		}
	
	Entry<IAtom, Rule> entry = tyrN.getAtomicLinks().entrySet().iterator().next();
	IAtom a = entry.getKey();
	Assert.assertEquals(a.getSymbol(), "N");
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
public ECFPFeature(EncodingFingerprint encodingFingerprint, IAtomContainer parentMolecule, IAtom coreAtom, IAtomContainer substructure, int iterationNumber, int parent, List<BondOrderIdentifierTupel> connections) {
	this.substructure = substructure;
	this.coreAtom = coreAtom;
	this.iterationNumber = iterationNumber;
	this.parent = parent;
	this.connections = connections;
	this.encodingFingerprint=encodingFingerprint;
	this.parentMolecule = parentMolecule;

	//needs to be the last function call in the constructor
	this.feature=0;
	try {
		this.feature=computeFeatureHash();
	} catch (MoltyperException e) {
		//silently do nothing
	}
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
private static IAtomContainer extractSubstructure(
   IAtomContainer atomContainer,
   int... atomIndices
) throws CloneNotSupportedException {
   IAtomContainer substructure = (IAtomContainer) atomContainer.clone();
   int numberOfAtoms = substructure.getAtomCount();
   IAtom[] atoms = new IAtom[numberOfAtoms];
   for (int atomIndex = 0; atomIndex < numberOfAtoms; atomIndex++) {
      atoms[atomIndex] = substructure.getAtom(atomIndex);
   }
   Arrays.sort(atomIndices);
   for (int index = 0; index < numberOfAtoms; index++) {
      if (Arrays.binarySearch(atomIndices, index) < 0) {
         IAtom atom = atoms[index];
         substructure.removeAtomAndConnectedElectronContainers(atom);
      }
  }
  return substructure;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
/**
 * returns the set of all shortest path between two nodes
 * 
 * @param ac
 * @param start
 * @param end
 * @param distance
 * @return
 */
private List<PathFeature> getAllShortestPath(IAtomContainer ac, Atom start, Atom end, int distance) {
	final ArrayList<List<IAtom>> pathlist = (ArrayList<List<IAtom>>) PathTools.getPathsOfLength(ac, start, distance);
	final ArrayList<PathFeature> features = new ArrayList<PathFeature>();
	for (int i = 0; i < pathlist.size(); i++) {
		int listSize = pathlist.get(i).size();
		IAtom endAtom = pathlist.get(i).get(listSize - 1);
		// if this path has the shortest distance possible and it ends with
		// the target atom, add the feature
		if (((distance + 1) == pathlist.get(i).size()) && endAtom.equals(end)) {
			final PathFeature feature = new PathFeature(pathlist.get(i), ac);
			features.add(feature);
		}
	}
	return features;
}
 

import org.openscience.cdk.interfaces.IAtom; //导入依赖的package包/类
@Test
public void MappingTest () {
	List<MappedChain> mbs = Isomorphism.searchFromPreviousMapping(this.mb0, this.ext1, MatchingType.STRONG);
	
	boolean isGood = true;
	for (MappedChain mb : mbs) {
		List<MappedChain> extendedMbs = Isomorphism.searchFromPreviousMapping(mb, this.ext2, MatchingType.STRONG);
		MappedChain newMb = extendedMbs.get(0);
		
		IMolecule mol = mb.getChemObject().getMolecule();
		IAtom newA = (mol.getAtom(newMb.getAtomsMapping().get(2)));
		
		if (!(
				(newMb.getAtomsMapping().get(0) == mb.getAtomsMapping().get(0)) && // Same first atom
				(newMb.getAtomsMapping().get(1) == mb.getAtomsMapping().get(1)) && // Same second atom
				(newA.getSymbol().equals("C")) // Extended by C atom
				))
			isGood = false;
	}
	
	Assert.assertTrue(isGood);
}