protected void assignSMILES(IAtomContainer molecule) throws Exception {
try {
molecule.setProperty(FIELD.SMILES_Kekule.name(), SmilesGenerator.unique().create(molecule));
} catch (Exception x) {
molecule.setProperty(FIELD.SMILES_Kekule, x.getMessage());
}
try {
molecule.setProperty(
FIELD.SMILES_Aromatic.name(), smilesGenerator.aromatic().create(molecule));
} catch (Exception x) {
molecule.setProperty(FIELD.SMILES_Aromatic, x.getMessage());
}
}
private void processNameBlock(int lineCount, IAtomContainer container) throws IOException {
String name = "";
for (int i = 0; i < lineCount; i++) {
name = name + input.readLine().trim();
}
container.setProperty(CDKConstants.TITLE, name);
}
/** Undo actions */
public void undo() {
IRGroupQuery rgrpQ = rgrpHandler.getrGroupQuery();
if (type.equals("setSubstitute") || type.equals("setRoot")) {
this.redoRootAttachmentPoints = rgrpHandler.getrGroupQuery().getRootAttachmentPoints();
for (Iterator<IAtom> atItr = existingAtomDistr.keySet().iterator(); atItr.hasNext(); ) {
IAtom atom = atItr.next();
existingAtomDistr.get(atom).addAtom(atom);
}
for (Iterator<IBond> bndItr = existingBondDistr.keySet().iterator(); bndItr.hasNext(); ) {
IBond bond = bndItr.next();
existingBondDistr.get(bond).addBond(bond);
}
hub.getChemModel().getMoleculeSet().removeAtomContainer(userSelection);
if (type.equals("setRoot")) {
if (isNewRgrp) {
rgrpQ.setRootStructure(null);
rgrpQ.setRootAttachmentPoints(null);
for (IAtomContainer atc : hub.getIChemModel().getMoleculeSet().atomContainers()) {
atc.removeProperty(CDKConstants.TITLE);
}
hub.unsetRGroupHandler();
} else {
existingRoot.setProperty(CDKConstants.TITLE, RGroup.ROOT_LABEL);
rgrpQ.setRootStructure(existingRoot);
rgrpQ.setRootAttachmentPoints(existingRootAttachmentPoints);
}
} else if (type.equals("setSubstitute")) {
if (existingRgroupLists != null) {
for (Iterator<Integer> rNums = existingRgroupLists.keySet().iterator();
rNums.hasNext(); ) {
int rNum = rNums.next();
rgrpQ.getRGroupDefinitions().put(rNum, existingRgroupLists.get(rNum));
}
}
}
} else if (type.startsWith("setAtomApoAction")) {
RGroup undoRGroup = existingRGroupApo.keySet().iterator().next();
for (Iterator<Integer> rnumItr =
hub.getRGroupHandler().getrGroupQuery().getRGroupDefinitions().keySet().iterator();
rnumItr.hasNext(); ) {
for (RGroup rgrp :
hub.getRGroupHandler()
.getrGroupQuery()
.getRGroupDefinitions()
.get(rnumItr.next())
.getRGroups()) {
if (rgrp.equals(undoRGroup)) {
IAtom apo1 = existingRGroupApo.get(undoRGroup).get(1);
IAtom apo2 = existingRGroupApo.get(undoRGroup).get(2);
rgrp.setFirstAttachmentPoint(apo1);
rgrp.setSecondAttachmentPoint(apo2);
}
}
}
} else if (type.startsWith("setBondApoAction")) {
for (Iterator<IAtom> atItr = existingRootAttachmentPoints.keySet().iterator();
atItr.hasNext(); ) {
IAtom rAtom = atItr.next();
Map<Integer, IBond> undoApo = existingRootAttachmentPoints.get(rAtom);
Map<Integer, IBond> apoBonds = rgrpQ.getRootAttachmentPoints().get(rAtom);
redoRootAttachmentPoints = new HashMap<IAtom, Map<Integer, IBond>>();
Map<Integer, IBond> redoApo = new HashMap<Integer, IBond>();
if (apoBonds.get(1) != null) redoApo.put(1, apoBonds.get(1));
if (apoBonds.get(2) != null) redoApo.put(2, apoBonds.get(2));
redoRootAttachmentPoints.put(rAtom, redoApo);
apoBonds.remove(1);
apoBonds.remove(2);
if (undoApo.get(1) != null) {
apoBonds.put(1, undoApo.get(1));
}
if (undoApo.get(2) != null) {
apoBonds.put(2, undoApo.get(2));
}
}
} else if (type.equals("clearRgroup")) {
hub.setRGroupHandler(rgrpHandler);
rgrpQ.getRootStructure().setProperty(CDKConstants.TITLE, RGroup.ROOT_LABEL);
for (Iterator<Integer> rnumItr =
hub.getRGroupHandler().getrGroupQuery().getRGroupDefinitions().keySet().iterator();
rnumItr.hasNext(); ) {
int rNum = rnumItr.next();
for (RGroup rgrp :
hub.getRGroupHandler().getrGroupQuery().getRGroupDefinitions().get(rNum).getRGroups()) {
rgrp.getGroup().setProperty(CDKConstants.TITLE, RGroup.makeLabel(rNum));
}
}
}
}
/**
* @return
* @throws Exception
*/
public int process() throws Exception {
if (file == null) throw new Exception("File not assigned! Use -f command line option.");
if (!file.exists()) throw new FileNotFoundException(file.getAbsolutePath());
int records_read = 0;
int records_processed = 0;
int records_error = 0;
InputStream in = new FileInputStream(file);
/**
* cdk-io module http://ambit.uni-plovdiv.bg:8083/nexus/index.html#nexus-
* search;classname~IteratingMDLReader
*/
IteratingSDFReader reader = null;
SDFWriter writer = new SDFWriter(new OutputStreamWriter(System.out));
try {
reader = new IteratingSDFReader(in, DefaultChemObjectBuilder.getInstance());
LOGGER.log(Level.INFO, String.format("Reading %s", file.getAbsoluteFile()));
while (reader.hasNext()) {
/** Note recent versions allow IAtomContainer molecule = reader.next(); */
Object object = reader.next();
IAtomContainer molecule = null;
if (object instanceof IAtomContainer) molecule = (IAtomContainer) object;
else break;
records_read++;
try {
/** cdk-standard module */
AtomContainerManipulator.percieveAtomTypesAndConfigureAtoms(molecule);
// CDKHueckelAromaticityDetector.detectAromaticity(molecule);
for (IAtom atom : molecule.atoms())
if (atom.getImplicitHydrogenCount() == null) {
LOGGER.fine(
atom.getSymbol()
+ "\t"
+ atom.getAtomTypeName()
+ "\t"
+ atom.getImplicitHydrogenCount());
atom.setImplicitHydrogenCount(0);
}
molecule = AtomContainerManipulator.copyAndSuppressedHydrogens(molecule);
/** Generate SMILES and assign as properties */
assignSMILES(molecule);
molecule.setProperty("REACTION", "REACTANT");
molecule.setProperty("SMIRKS", "");
/** Apply reactions */
writer.write(molecule);
for (int r = 0; r < smirks.length; r++) {
if (reactions[r] == null) {
reactions[r] = smrkMan.parse(smirks[r][1]);
}
IAtomContainer reactant = molecule.clone();
if (smrkMan.applyTransformation(reactant, reactions[r])) {
AtomContainerManipulator.percieveAtomTypesAndConfigureAtoms(reactant);
reactant.setProperty("REACTION", "PRODUCT OF " + smirks[r][0]);
reactant.setProperty("SMIRKS", smirks[r][1]);
try {
assignSMILES(reactant);
} catch (Exception x) {
LOGGER.log(Level.WARNING, x.getMessage());
}
writer.write(reactant);
}
}
records_processed++;
;
} catch (Exception x) {
System.err.println("*");
records_error++;
LOGGER.log(
Level.SEVERE,
String.format("[Record %d] Error %s\n", records_read, file.getAbsoluteFile()),
x);
}
}
} catch (Exception x) {
LOGGER.log(
Level.SEVERE,
String.format("[Record %d] Error %s\n", records_read, file.getAbsoluteFile()),
x);
} finally {
try {
reader.close();
} catch (Exception x) {
}
try {
writer.close();
} catch (Exception x) {
}
}
LOGGER.log(
Level.INFO,
String.format(
"[Records read/processed/error %d/%d/%d] %s",
records_read, records_processed, records_error, file.getAbsoluteFile()));
return records_read;
}
/**
* Procedure required by the CDOInterface. This function is only supposed to be called by the JCFL
* library
*/
public void setObjectProperty(String objectType, String propertyType, String propertyValue) {
logger.debug("objectType: " + objectType);
logger.debug("propType: " + propertyType);
logger.debug("property: " + propertyValue);
if (objectType == null) {
logger.error("Cannot add property for null object");
return;
}
if (propertyType == null) {
logger.error("Cannot add property for null property type");
return;
}
if (propertyValue == null) {
logger.warn("Will not add null property");
return;
}
if (objectType.equals("Molecule")) {
if (propertyType.equals("id")) {
currentMolecule.setID(propertyValue);
} else if (propertyType.equals("inchi")) {
currentMolecule.setProperty("iupac.nist.chemical.identifier", propertyValue);
}
} else if (objectType.equals("PseudoAtom")) {
if (propertyType.equals("label")) {
if (!(currentAtom instanceof IPseudoAtom)) {
currentAtom = builder.newPseudoAtom(currentAtom);
}
((IPseudoAtom) currentAtom).setLabel(propertyValue);
}
} else if (objectType.equals("Atom")) {
if (propertyType.equals("type")) {
if (propertyValue.equals("R") && !(currentAtom instanceof IPseudoAtom)) {
currentAtom = builder.newPseudoAtom(currentAtom);
}
currentAtom.setSymbol(propertyValue);
} else if (propertyType.equals("x2")) {
Point2d coord = currentAtom.getPoint2d();
if (coord == null) coord = new Point2d();
coord.x = Double.parseDouble(propertyValue);
currentAtom.setPoint2d(coord);
} else if (propertyType.equals("y2")) {
Point2d coord = currentAtom.getPoint2d();
if (coord == null) coord = new Point2d();
coord.y = Double.parseDouble(propertyValue);
currentAtom.setPoint2d(coord);
} else if (propertyType.equals("x3")) {
Point3d coord = currentAtom.getPoint3d();
if (coord == null) coord = new Point3d();
coord.x = Double.parseDouble(propertyValue);
currentAtom.setPoint3d(coord);
} else if (propertyType.equals("y3")) {
Point3d coord = currentAtom.getPoint3d();
if (coord == null) coord = new Point3d();
coord.y = Double.parseDouble(propertyValue);
currentAtom.setPoint3d(coord);
} else if (propertyType.equals("z3")) {
Point3d coord = currentAtom.getPoint3d();
if (coord == null) coord = new Point3d();
coord.z = Double.parseDouble(propertyValue);
currentAtom.setPoint3d(coord);
} else if (propertyType.equals("xFract")) {
Point3d coord = currentAtom.getFractionalPoint3d();
if (coord == null) coord = new Point3d();
coord.x = Double.parseDouble(propertyValue);
currentAtom.setFractionalPoint3d(coord);
} else if (propertyType.equals("yFract")) {
Point3d coord = currentAtom.getFractionalPoint3d();
if (coord == null) coord = new Point3d();
coord.y = Double.parseDouble(propertyValue);
currentAtom.setFractionalPoint3d(coord);
} else if (propertyType.equals("zFract")) {
Point3d coord = currentAtom.getFractionalPoint3d();
if (coord == null) coord = new Point3d();
coord.z = Double.parseDouble(propertyValue);
currentAtom.setFractionalPoint3d(coord);
} else if (propertyType.equals("formalCharge")) {
currentAtom.setFormalCharge(Integer.parseInt(propertyValue));
} else if (propertyType.equals("charge") || propertyType.equals("partialCharge")) {
currentAtom.setCharge(Double.parseDouble(propertyValue));
} else if (propertyType.equals("hydrogenCount")) {
currentAtom.setHydrogenCount(Integer.parseInt(propertyValue));
} else if (propertyType.equals("dictRef")) {
currentAtom.setProperty("org.openscience.cdk.dict", propertyValue);
} else if (propertyType.equals("atomicNumber")) {
currentAtom.setAtomicNumber(Integer.parseInt(propertyValue));
} else if (propertyType.equals("massNumber")) {
currentAtom.setMassNumber((int) Double.parseDouble(propertyValue));
} else if (propertyType.equals("id")) {
logger.debug("id: ", propertyValue);
currentAtom.setID(propertyValue);
atomEnumeration.put(propertyValue, numberOfAtoms);
}
} else if (objectType.equals("Bond")) {
if (propertyType.equals("atom1")) {
bond_a1 = Integer.parseInt(propertyValue);
} else if (propertyType.equals("atom2")) {
bond_a2 = Integer.parseInt(propertyValue);
} else if (propertyType.equals("id")) {
logger.debug("id: " + propertyValue);
bond_id = propertyValue;
} else if (propertyType.equals("order")) {
try {
Double order = Double.parseDouble(propertyValue);
if (order == 1.0) {
bond_order = IBond.Order.SINGLE;
} else if (order == 2.0) {
bond_order = IBond.Order.DOUBLE;
} else if (order == 3.0) {
bond_order = IBond.Order.TRIPLE;
} else if (order == 4.0) {
bond_order = IBond.Order.QUADRUPLE;
} else {
bond_order = IBond.Order.SINGLE;
}
} catch (Exception e) {
logger.error("Cannot convert to double: " + propertyValue);
bond_order = IBond.Order.SINGLE;
}
} else if (propertyType.equals("stereo")) {
if (propertyValue.equals("H")) {
bond_stereo = CDKConstants.STEREO_BOND_DOWN;
} else if (propertyValue.equals("W")) {
bond_stereo = CDKConstants.STEREO_BOND_UP;
}
}
}
logger.debug("Object property set...");
}
public static void setProperty(IAtomContainer molecule, String key, Object value) {
molecule.setProperty(key, value);
}
/**
* Read an IAtomContainer from a file in MDL sd format
*
* @return The Molecule that was read from the MDL file.
*/
private IAtomContainer readAtomContainer(IAtomContainer molecule) throws CDKException {
logger.debug("Reading new molecule");
IAtomContainer outputContainer = null;
int linecount = 0;
int atoms = 0;
int bonds = 0;
int atom1 = 0;
int atom2 = 0;
int order = 0;
IBond.Stereo stereo = (IBond.Stereo) CDKConstants.UNSET;
int RGroupCounter = 1;
int Rnumber = 0;
String[] rGroup = null;
double x = 0.0;
double y = 0.0;
double z = 0.0;
double totalX = 0.0;
double totalY = 0.0;
double totalZ = 0.0;
String title = null;
String remark = null;
// int[][] conMat = new int[0][0];
// String help;
IAtom atom;
String line = "";
// A map to keep track of R# atoms so that RGP line can be parsed
Map<Integer, IPseudoAtom> rAtoms = new HashMap<Integer, IPseudoAtom>();
try {
IsotopeFactory isotopeFactory = Isotopes.getInstance();
logger.info("Reading header");
line = input.readLine();
linecount++;
if (line == null) {
return null;
}
logger.debug("Line " + linecount + ": " + line);
if (line.startsWith("$$$$")) {
logger.debug("File is empty, returning empty molecule");
return molecule;
}
if (line.length() > 0) {
title = line;
}
line = input.readLine();
linecount++;
logger.debug("Line " + linecount + ": " + line);
line = input.readLine();
linecount++;
logger.debug("Line " + linecount + ": " + line);
if (line.length() > 0) {
remark = line;
}
logger.info("Reading rest of file");
line = input.readLine();
linecount++;
logger.debug("Line " + linecount + ": " + line);
// if the line is empty we hav a problem - either a malformed
// molecule entry or just extra new lines at the end of the file
if (line.length() == 0) {
// read till the next $$$$ or EOF
while (true) {
line = input.readLine();
linecount++;
if (line == null) {
return null;
}
if (line.startsWith("$$$$")) {
return molecule; // an empty molecule
}
}
}
// check the CT block version
if (line.contains("V3000") || line.contains("v3000")) {
handleError("This file must be read with the MDLV3000Reader.");
} else if (!line.contains("V2000") && !line.contains("v2000")) {
handleError("This file must be read with the MDLReader.");
}
atoms = Integer.parseInt(line.substring(0, 3).trim());
List<IAtom> atomList = new ArrayList<IAtom>();
logger.debug("Atomcount: " + atoms);
bonds = Integer.parseInt(line.substring(3, 6).trim());
logger.debug("Bondcount: " + bonds);
List<IBond> bondList = new ArrayList<IBond>();
// used for applying the MDL valence model
int[] explicitValence = new int[atoms];
// read ATOM block
logger.info("Reading atom block");
atomsByLinePosition = new ArrayList<IAtom>();
atomsByLinePosition.add(null); // 0 is not a valid position
int atomBlockLineNumber = 0;
for (int f = 0; f < atoms; f++) {
line = input.readLine();
linecount++;
atomBlockLineNumber++;
Matcher trailingSpaceMatcher = TRAILING_SPACE.matcher(line);
if (trailingSpaceMatcher.find()) {
handleError(
"Trailing space found",
linecount,
trailingSpaceMatcher.start(),
trailingSpaceMatcher.end());
line = trailingSpaceMatcher.replaceAll("");
}
x = Double.parseDouble(line.substring(0, 10).trim());
y = Double.parseDouble(line.substring(10, 20).trim());
z = Double.parseDouble(line.substring(20, 30).trim());
// *all* values should be zero, not just the sum
totalX += Math.abs(x);
totalY += Math.abs(y);
totalZ += Math.abs(z);
logger.debug("Coordinates: " + x + "; " + y + "; " + z);
String element = line.substring(31, Math.min(line.length(), 34)).trim();
if (line.length() < 34) {
handleError(
"Element atom type does not follow V2000 format type should of length three"
+ " and padded with space if required",
linecount,
31,
34);
}
logger.debug("Atom type: ", element);
if (isotopeFactory.isElement(element)) {
atom = isotopeFactory.configure(molecule.getBuilder().newInstance(IAtom.class, element));
} else if ("A".equals(element)) {
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
} else if ("Q".equals(element)) {
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
} else if ("*".equals(element)) {
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
} else if ("LP".equals(element)) {
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
} else if ("L".equals(element)) {
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
} else if (element.equals("R") || (element.length() > 0 && element.charAt(0) == 'R')) {
logger.debug("Atom ", element, " is not an regular element. Creating a PseudoAtom.");
// check if the element is R
rGroup = element.split("^R");
atom = null;
if (rGroup.length > 1) {
try {
Rnumber = Integer.valueOf(rGroup[(rGroup.length - 1)]);
RGroupCounter = Rnumber;
element = "R" + Rnumber;
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
} catch (Exception ex) {
// This happens for atoms labeled "R#".
// The Rnumber may be set later on, using RGP line
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, "R");
rAtoms.put(atomBlockLineNumber, (IPseudoAtom) atom);
}
} else {
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
}
} else {
handleError(
"Invalid element type. Must be an existing " + "element, or one in: A, Q, L, LP, *.",
linecount,
32,
35);
atom = molecule.getBuilder().newInstance(IPseudoAtom.class, element);
atom.setSymbol(element);
}
// store as 3D for now, convert to 2D (if totalZ == 0.0) later
atom.setPoint3d(new Point3d(x, y, z));
// parse further fields
if (line.length() >= 36) {
String massDiffString = line.substring(34, 36).trim();
logger.debug("Mass difference: ", massDiffString);
if (!(atom instanceof IPseudoAtom)) {
try {
int massDiff = Integer.parseInt(massDiffString);
if (massDiff != 0) {
IIsotope major = Isotopes.getInstance().getMajorIsotope(element);
atom.setMassNumber(major.getMassNumber() + massDiff);
}
} catch (Exception exception) {
handleError("Could not parse mass difference field.", linecount, 35, 37, exception);
}
} else {
logger.error("Cannot set mass difference for a non-element!");
}
} else {
handleError("Mass difference is missing", linecount, 34, 36);
}
// set the stereo partiy
Integer parity = line.length() > 41 ? Character.digit(line.charAt(41), 10) : 0;
atom.setStereoParity(parity);
if (line.length() >= 51) {
String valenceString = removeNonDigits(line.substring(48, 51));
logger.debug("Valence: ", valenceString);
if (!(atom instanceof IPseudoAtom)) {
try {
int valence = Integer.parseInt(valenceString);
if (valence != 0) {
// 15 is defined as 0 in mol files
if (valence == 15) atom.setValency(0);
else atom.setValency(valence);
}
} catch (Exception exception) {
handleError(
"Could not parse valence information field", linecount, 49, 52, exception);
}
} else {
logger.error("Cannot set valence information for a non-element!");
}
}
if (line.length() >= 39) {
String chargeCodeString = line.substring(36, 39).trim();
logger.debug("Atom charge code: ", chargeCodeString);
int chargeCode = Integer.parseInt(chargeCodeString);
if (chargeCode == 0) {
// uncharged species
} else if (chargeCode == 1) {
atom.setFormalCharge(+3);
} else if (chargeCode == 2) {
atom.setFormalCharge(+2);
} else if (chargeCode == 3) {
atom.setFormalCharge(+1);
} else if (chargeCode == 4) {
} else if (chargeCode == 5) {
atom.setFormalCharge(-1);
} else if (chargeCode == 6) {
atom.setFormalCharge(-2);
} else if (chargeCode == 7) {
atom.setFormalCharge(-3);
}
} else {
handleError("Atom charge is missing", linecount, 36, 39);
}
try {
// read the mmm field as position 61-63
String reactionAtomIDString = line.substring(60, 63).trim();
logger.debug("Parsing mapping id: ", reactionAtomIDString);
try {
int reactionAtomID = Integer.parseInt(reactionAtomIDString);
if (reactionAtomID != 0) {
atom.setProperty(CDKConstants.ATOM_ATOM_MAPPING, reactionAtomID);
}
} catch (Exception exception) {
logger.error("Mapping number ", reactionAtomIDString, " is not an integer.");
logger.debug(exception);
}
} catch (Exception exception) {
// older mol files don't have all these fields...
logger.warn("A few fields are missing. Older MDL MOL file?");
}
// shk3: This reads shifts from after the molecule. I don't think this is an official
// format, but I saw it frequently 80=>78 for alk
if (line.length() >= 78) {
double shift = Double.parseDouble(line.substring(69, 80).trim());
atom.setProperty("first shift", shift);
}
if (line.length() >= 87) {
double shift = Double.parseDouble(line.substring(79, 87).trim());
atom.setProperty("second shift", shift);
}
atomList.add(atom);
atomsByLinePosition.add(atom);
}
// convert to 2D, if totalZ == 0
if (totalX == 0.0 && totalY == 0.0 && totalZ == 0.0) {
logger.info("All coordinates are 0.0");
if (atomList.size() == 1) {
atomList.get(0).setPoint2d(new Point2d(x, y));
} else {
for (IAtom atomToUpdate : atomList) {
atomToUpdate.setPoint3d(null);
}
}
} else if (totalZ == 0.0 && !forceReadAs3DCoords.isSet()) {
logger.info("Total 3D Z is 0.0, interpreting it as a 2D structure");
for (IAtom atomToUpdate : atomList) {
Point3d p3d = atomToUpdate.getPoint3d();
if (p3d != null) {
atomToUpdate.setPoint2d(new Point2d(p3d.x, p3d.y));
atomToUpdate.setPoint3d(null);
}
}
}
// read BOND block
logger.info("Reading bond block");
int queryBondCount = 0;
for (int f = 0; f < bonds; f++) {
line = input.readLine();
linecount++;
atom1 = Integer.parseInt(line.substring(0, 3).trim());
atom2 = Integer.parseInt(line.substring(3, 6).trim());
order = Integer.parseInt(line.substring(6, 9).trim());
if (line.length() >= 12) {
int mdlStereo =
line.length() > 12
? Integer.parseInt(line.substring(9, 12).trim())
: Integer.parseInt(line.substring(9).trim());
if (mdlStereo == 1) {
// MDL up bond
stereo = IBond.Stereo.UP;
} else if (mdlStereo == 6) {
// MDL down bond
stereo = IBond.Stereo.DOWN;
} else if (mdlStereo == 0) {
if (order == 2) {
// double bond stereo defined by coordinates
stereo = IBond.Stereo.E_Z_BY_COORDINATES;
} else {
// bond has no stereochemistry
stereo = IBond.Stereo.NONE;
}
} else if (mdlStereo == 3 && order == 2) {
// unknown E/Z stereochemistry
stereo = IBond.Stereo.E_OR_Z;
} else if (mdlStereo == 4) {
// MDL bond undefined
stereo = IBond.Stereo.UP_OR_DOWN;
}
} else {
handleError("Missing expected stereo field at line: ", linecount, 10, 12);
}
if (logger.isDebugEnabled()) {
logger.debug("Bond: " + atom1 + " - " + atom2 + "; order " + order);
}
// interpret CTfile's special bond orders
IAtom a1 = atomList.get(atom1 - 1);
IAtom a2 = atomList.get(atom2 - 1);
IBond newBond = null;
if (order >= 1 && order <= 3) {
IBond.Order cdkOrder = IBond.Order.SINGLE;
if (order == 2) cdkOrder = IBond.Order.DOUBLE;
if (order == 3) cdkOrder = IBond.Order.TRIPLE;
if (stereo != null) {
newBond = molecule.getBuilder().newInstance(IBond.class, a1, a2, cdkOrder, stereo);
} else {
newBond = molecule.getBuilder().newInstance(IBond.class, a1, a2, cdkOrder);
}
} else if (order == 4) {
// aromatic bond
if (stereo != null) {
newBond =
molecule.getBuilder().newInstance(IBond.class, a1, a2, IBond.Order.UNSET, stereo);
} else {
newBond = molecule.getBuilder().newInstance(IBond.class, a1, a2, IBond.Order.UNSET);
}
// mark both atoms and the bond as aromatic and raise the SINGLE_OR_DOUBLE-flag
newBond.setFlag(CDKConstants.SINGLE_OR_DOUBLE, true);
newBond.setFlag(CDKConstants.ISAROMATIC, true);
a1.setFlag(CDKConstants.ISAROMATIC, true);
a2.setFlag(CDKConstants.ISAROMATIC, true);
} else {
queryBondCount++;
newBond = new CTFileQueryBond(molecule.getBuilder());
IAtom[] bondAtoms = {a1, a2};
newBond.setAtoms(bondAtoms);
newBond.setOrder(null);
CTFileQueryBond.Type queryBondType = null;
switch (order) {
case 5:
queryBondType = CTFileQueryBond.Type.SINGLE_OR_DOUBLE;
break;
case 6:
queryBondType = CTFileQueryBond.Type.SINGLE_OR_AROMATIC;
break;
case 7:
queryBondType = CTFileQueryBond.Type.DOUBLE_OR_AROMATIC;
break;
case 8:
queryBondType = CTFileQueryBond.Type.ANY;
break;
}
((CTFileQueryBond) newBond).setType(queryBondType);
newBond.setStereo(stereo);
}
bondList.add((newBond));
// add the bond order to the explicit valence for each atom
if (newBond.getOrder() != null && newBond.getOrder() != IBond.Order.UNSET) {
explicitValence[atom1 - 1] += newBond.getOrder().numeric();
explicitValence[atom2 - 1] += newBond.getOrder().numeric();
} else {
explicitValence[atom1 - 1] = Integer.MIN_VALUE;
explicitValence[atom2 - 1] = Integer.MIN_VALUE;
}
}
if (queryBondCount == 0) outputContainer = molecule;
else {
outputContainer = new QueryAtomContainer(molecule.getBuilder());
}
outputContainer.setProperty(CDKConstants.TITLE, title);
outputContainer.setProperty(CDKConstants.REMARK, remark);
for (IAtom at : atomList) {
outputContainer.addAtom(at);
}
for (IBond bnd : bondList) {
outputContainer.addBond(bnd);
}
// read PROPERTY block
logger.info("Reading property block");
while (true) {
line = input.readLine();
linecount++;
if (line == null) {
handleError("The expected property block is missing!", linecount, 0, 0);
}
if (line.startsWith("M END")) break;
boolean lineRead = false;
if (line.startsWith("M CHG")) {
// FIXME: if this is encountered for the first time, all
// atom charges should be set to zero first!
int infoCount = Integer.parseInt(line.substring(6, 9).trim());
StringTokenizer st = new StringTokenizer(line.substring(9));
for (int i = 1; i <= infoCount; i++) {
String token = st.nextToken();
int atomNumber = Integer.parseInt(token.trim());
token = st.nextToken();
int charge = Integer.parseInt(token.trim());
outputContainer.getAtom(atomNumber - 1).setFormalCharge(charge);
}
} else if (line.matches("A\\s{1,4}\\d+")) {
// Reads the pseudo atom property from the mol file
// The atom number of the to replaced atom
int aliasAtomNumber =
Integer.parseInt(line.replaceFirst("A\\s{1,4}", "")) - RGroupCounter;
line = input.readLine();
linecount++;
String[] aliasArray = line.split("\\\\");
// name of the alias atom like R1 or R2 etc.
String alias = "";
for (int i = 0; i < aliasArray.length; i++) {
alias += aliasArray[i];
}
IAtom aliasAtom = outputContainer.getAtom(aliasAtomNumber);
// skip if already a pseudoatom
if (aliasAtom instanceof IPseudoAtom) {
((IPseudoAtom) aliasAtom).setLabel(alias);
continue;
}
IAtom newPseudoAtom = molecule.getBuilder().newInstance(IPseudoAtom.class, alias);
if (aliasAtom.getPoint2d() != null) {
newPseudoAtom.setPoint2d(aliasAtom.getPoint2d());
}
if (aliasAtom.getPoint3d() != null) {
newPseudoAtom.setPoint3d(aliasAtom.getPoint3d());
}
outputContainer.addAtom(newPseudoAtom);
List<IBond> bondsOfAliasAtom = outputContainer.getConnectedBondsList(aliasAtom);
for (int i = 0; i < bondsOfAliasAtom.size(); i++) {
IBond bondOfAliasAtom = bondsOfAliasAtom.get(i);
IAtom connectedToAliasAtom = bondOfAliasAtom.getConnectedAtom(aliasAtom);
IBond newBond = bondOfAliasAtom.getBuilder().newInstance(IBond.class);
newBond.setAtoms(new IAtom[] {connectedToAliasAtom, newPseudoAtom});
newBond.setOrder(bondOfAliasAtom.getOrder());
outputContainer.addBond(newBond);
outputContainer.removeBond(aliasAtom, connectedToAliasAtom);
}
outputContainer.removeAtom(aliasAtom);
RGroupCounter++;
} else if (line.startsWith("M ISO")) {
try {
String countString = line.substring(6, 10).trim();
int infoCount = Integer.parseInt(countString);
StringTokenizer st = new StringTokenizer(line.substring(10));
for (int i = 1; i <= infoCount; i++) {
int atomNumber = Integer.parseInt(st.nextToken().trim());
int absMass = Integer.parseInt(st.nextToken().trim());
if (absMass != 0) {
IAtom isotope = outputContainer.getAtom(atomNumber - 1);
isotope.setMassNumber(absMass);
}
}
} catch (NumberFormatException exception) {
String error =
"Error ("
+ exception.getMessage()
+ ") while parsing line "
+ linecount
+ ": "
+ line
+ " in property block.";
logger.error(error);
handleError(
"NumberFormatException in isotope information.", linecount, 7, 11, exception);
}
} else if (line.startsWith("M RAD")) {
try {
String countString = line.substring(6, 9).trim();
int infoCount = Integer.parseInt(countString);
StringTokenizer st = new StringTokenizer(line.substring(9));
for (int i = 1; i <= infoCount; i++) {
int atomNumber = Integer.parseInt(st.nextToken().trim());
int spinMultiplicity = Integer.parseInt(st.nextToken().trim());
MDLV2000Writer.SPIN_MULTIPLICITY spin = MDLV2000Writer.SPIN_MULTIPLICITY.NONE;
if (spinMultiplicity > 0) {
IAtom radical = outputContainer.getAtom(atomNumber - 1);
switch (spinMultiplicity) {
case 1:
spin = MDLV2000Writer.SPIN_MULTIPLICITY.DOUBLET;
break;
case 2:
spin = MDLV2000Writer.SPIN_MULTIPLICITY.SINGLET;
break;
case 3:
spin = MDLV2000Writer.SPIN_MULTIPLICITY.TRIPLET;
break;
default:
logger.debug("Invalid spin multiplicity found: " + spinMultiplicity);
break;
}
for (int j = 0; j < spin.getSingleElectrons(); j++) {
outputContainer.addSingleElectron(
molecule.getBuilder().newInstance(ISingleElectron.class, radical));
}
}
}
} catch (NumberFormatException exception) {
String error =
"Error ("
+ exception.getMessage()
+ ") while parsing line "
+ linecount
+ ": "
+ line
+ " in property block.";
logger.error(error);
handleError(
"NumberFormatException in radical information", linecount, 7, 10, exception);
}
} else if (line.startsWith("G ")) {
try {
String atomNumberString = line.substring(3, 6).trim();
int atomNumber = Integer.parseInt(atomNumberString);
// String whatIsThisString = line.substring(6,9).trim();
String atomName = input.readLine();
// convert Atom into a PseudoAtom
IAtom prevAtom = outputContainer.getAtom(atomNumber - 1);
IPseudoAtom pseudoAtom = molecule.getBuilder().newInstance(IPseudoAtom.class, atomName);
if (prevAtom.getPoint2d() != null) {
pseudoAtom.setPoint2d(prevAtom.getPoint2d());
}
if (prevAtom.getPoint3d() != null) {
pseudoAtom.setPoint3d(prevAtom.getPoint3d());
}
AtomContainerManipulator.replaceAtomByAtom(molecule, prevAtom, pseudoAtom);
} catch (NumberFormatException exception) {
String error =
"Error ("
+ exception.toString()
+ ") while parsing line "
+ linecount
+ ": "
+ line
+ " in property block.";
logger.error(error);
handleError("NumberFormatException in group information", linecount, 4, 7, exception);
}
} else if (line.startsWith("M RGP")) {
StringTokenizer st = new StringTokenizer(line);
// Ignore first 3 tokens (overhead).
st.nextToken();
st.nextToken();
st.nextToken();
// Process the R group numbers as defined in RGP line.
while (st.hasMoreTokens()) {
Integer position = new Integer(st.nextToken());
Rnumber = new Integer(st.nextToken());
IPseudoAtom pseudoAtom = rAtoms.get(position);
if (pseudoAtom != null) {
pseudoAtom.setLabel("R" + Rnumber);
}
}
}
if (line.startsWith("V ")) {
Integer atomNumber = new Integer(line.substring(3, 6).trim());
IAtom atomWithComment = outputContainer.getAtom(atomNumber - 1);
atomWithComment.setProperty(CDKConstants.COMMENT, line.substring(7));
}
if (!lineRead) {
logger.warn("Skipping line in property block: ", line);
}
}
if (interpretHydrogenIsotopes.isSet()) {
fixHydrogenIsotopes(molecule, isotopeFactory);
}
// note: apply the valence model last so that all fixes (i.e. hydrogen
// isotopes) are in place
for (int i = 0; i < atoms; i++) {
applyMDLValenceModel(outputContainer.getAtom(i), explicitValence[i]);
}
} catch (CDKException exception) {
String error =
"Error while parsing line " + linecount + ": " + line + " -> " + exception.getMessage();
logger.error(error);
logger.debug(exception);
throw exception;
} catch (Exception exception) {
exception.printStackTrace();
String error =
"Error while parsing line " + linecount + ": " + line + " -> " + exception.getMessage();
logger.error(error);
logger.debug(exception);
handleError("Error while parsing line: " + line, linecount, 0, 0, exception);
}
return outputContainer;
}
/**
* Read a ChemFile from a file in MDL SDF format.
*
* @return The ChemFile that was read from the MDL file.
*/
private IChemFile readChemFile(IChemFile chemFile) throws CDKException {
IChemSequence chemSequence = chemFile.getBuilder().newInstance(IChemSequence.class);
IChemModel chemModel = chemFile.getBuilder().newInstance(IChemModel.class);
IAtomContainerSet setOfMolecules = chemFile.getBuilder().newInstance(IAtomContainerSet.class);
IAtomContainer m = readAtomContainer(chemFile.getBuilder().newInstance(IAtomContainer.class));
if (m != null && m instanceof IAtomContainer) {
setOfMolecules.addAtomContainer((IAtomContainer) m);
}
chemModel.setMoleculeSet(setOfMolecules);
chemSequence.addChemModel(chemModel);
setOfMolecules = chemFile.getBuilder().newInstance(IAtomContainerSet.class);
chemModel = chemFile.getBuilder().newInstance(IChemModel.class);
String str;
try {
String line;
while ((line = input.readLine()) != null) {
logger.debug("line: ", line);
// apparently, this is a SDF file, continue with
// reading mol files
str = new String(line);
if (str.equals("$$$$")) {
m = readAtomContainer(chemFile.getBuilder().newInstance(IAtomContainer.class));
if (m != null && m instanceof IAtomContainer) {
setOfMolecules.addAtomContainer((IAtomContainer) m);
chemModel.setMoleculeSet(setOfMolecules);
chemSequence.addChemModel(chemModel);
setOfMolecules = chemFile.getBuilder().newInstance(IAtomContainerSet.class);
chemModel = chemFile.getBuilder().newInstance(IChemModel.class);
}
} else {
// here the stuff between 'M END' and '$$$$'
if (m != null) {
// ok, the first lines should start with '>'
String fieldName = null;
if (str.startsWith("> ")) {
// ok, should extract the field name
str.substring(2); // String content =
int index = str.indexOf("<");
if (index != -1) {
int index2 = str.substring(index).indexOf(">");
if (index2 != -1) {
fieldName = str.substring(index + 1, index + index2);
}
}
}
if (line == null) {
throw new CDKException("Expecting data line here, but found null!");
}
StringBuilder data = new StringBuilder();
int dataLineCount = 0;
boolean lineIsContinued = false;
while ((line = input.readLine()) != null) {
if (line.equals(" ") && dataLineCount == 0) {
// apparently a file can have a field whose value is a single space. Moronic
// we check for it *before* trimming it. ideally we should check for any length
// of whitespace
// In adition some SD files have the blank line after the value line contain
// a space, rather than being a true blank line. So we only store a blank value
// line if it's the first line after the key line
data.append(line);
lineIsContinued = false;
dataLineCount++;
if (!lineIsContinued && dataLineCount > 1)
data.append(System.getProperty("line.separator"));
continue;
}
line = line.trim();
if (line.length() == 0) break;
if (line.equals("$$$$")) {
logger.error("Expecting data line here, but found end of molecule: ", line);
break;
}
logger.debug("data line: ", line);
lineIsContinued = false; // reset property
dataLineCount++;
// preserve newlines, unless the line is exactly 80 chars;
// in that case it is assumed to continue on the next line.
// See MDL documentation.
if (!lineIsContinued && dataLineCount > 1)
data.append(System.getProperty("line.separator"));
// add the data line
data.append(line);
// check if the line will be continued on the next line
if (line.length() == 80) lineIsContinued = true;
}
if (fieldName != null) {
logger.info("fieldName, data: ", fieldName, ", ", data);
m.setProperty(fieldName, data.toString());
}
}
}
}
} catch (CDKException cdkexc) {
throw cdkexc;
} catch (Exception exception) {
String error = "Error while parsing SDF";
logger.error(error);
logger.debug(exception);
throw new CDKException(error, exception);
}
try {
input.close();
} catch (Exception exc) {
String error = "Error while closing file: " + exc.getMessage();
logger.error(error);
throw new CDKException(error, exc);
}
chemFile.addChemSequence(chemSequence);
return chemFile;
}