/**
* Procedure required by the CDOInterface. This function is only supposed to be called by the JCFL
* library
*/
public void endDocument() {
logger.debug("Closing document");
logger.info("End CDO Object");
}
/**
* Read a Reaction from a file in MDL RXN format
*
* @return The Reaction that was read from the MDL file.
*/
private IReaction readReaction(IChemObjectBuilder builder) throws CDKException {
IReaction reaction = builder.newReaction();
try {
input.readLine(); // first line should be $RXN
input.readLine(); // second line
input.readLine(); // third line
input.readLine(); // fourth line
} catch (IOException exception) {
logger.debug(exception);
throw new CDKException("Error while reading header of RXN file", exception);
}
int reactantCount = 0;
int productCount = 0;
try {
String countsLine = input.readLine();
/* this line contains the number of reactants
and products */
StringTokenizer tokenizer = new StringTokenizer(countsLine);
reactantCount = Integer.valueOf(tokenizer.nextToken()).intValue();
logger.info("Expecting " + reactantCount + " reactants in file");
productCount = Integer.valueOf(tokenizer.nextToken()).intValue();
logger.info("Expecting " + productCount + " products in file");
} catch (Exception exception) {
logger.debug(exception);
throw new CDKException("Error while counts line of RXN file", exception);
}
// now read the reactants
try {
for (int i = 1; i <= reactantCount; i++) {
StringBuffer molFile = new StringBuffer();
input.readLine(); // announceMDLFileLine
String molFileLine = "";
do {
molFileLine = input.readLine();
molFile.append(molFileLine);
molFile.append(System.getProperty("line.separator"));
} while (!molFileLine.equals("M END"));
// read MDL molfile content
// Changed this to mdlv2000 reader
MDLV2000Reader reader =
new MDLV2000Reader(new StringReader(molFile.toString()), super.mode);
IMolecule reactant = (IMolecule) reader.read(builder.newMolecule());
// add reactant
reaction.addReactant(reactant);
}
} catch (CDKException exception) {
// rethrow exception from MDLReader
throw exception;
} catch (Exception exception) {
logger.debug(exception);
throw new CDKException("Error while reading reactant", exception);
}
// now read the products
try {
for (int i = 1; i <= productCount; i++) {
StringBuffer molFile = new StringBuffer();
input.readLine(); // String announceMDLFileLine =
String molFileLine = "";
do {
molFileLine = input.readLine();
molFile.append(molFileLine);
molFile.append(System.getProperty("line.separator"));
} while (!molFileLine.equals("M END"));
// read MDL molfile content
MDLV2000Reader reader = new MDLV2000Reader(new StringReader(molFile.toString()));
IMolecule product = (IMolecule) reader.read(builder.newMolecule());
// add reactant
reaction.addProduct(product);
}
} catch (CDKException exception) {
// rethrow exception from MDLReader
throw exception;
} catch (Exception exception) {
logger.debug(exception);
throw new CDKException("Error while reading products", exception);
}
// now try to map things, if wanted
logger.info("Reading atom-atom mapping from file");
// distribute all atoms over two AtomContainer's
IAtomContainer reactingSide = builder.newAtomContainer();
java.util.Iterator molecules = reaction.getReactants().molecules().iterator();
while (molecules.hasNext()) {
reactingSide.add((IMolecule) molecules.next());
}
IAtomContainer producedSide = builder.newAtomContainer();
molecules = reaction.getProducts().molecules().iterator();
while (molecules.hasNext()) {
producedSide.add((IMolecule) molecules.next());
}
// map the atoms
int mappingCount = 0;
// IAtom[] reactantAtoms = reactingSide.getAtoms();
// IAtom[] producedAtoms = producedSide.getAtoms();
for (int i = 0; i < reactingSide.getAtomCount(); i++) {
for (int j = 0; j < producedSide.getAtomCount(); j++) {
IAtom eductAtom = reactingSide.getAtom(i);
IAtom productAtom = producedSide.getAtom(j);
if (eductAtom.getID() != null && eductAtom.getID().equals(productAtom.getID())) {
reaction.addMapping(builder.newMapping(eductAtom, productAtom));
mappingCount++;
break;
}
}
}
logger.info("Mapped atom pairs: " + mappingCount);
return reaction;
}
/**
* Procedure required by the CDOInterface. This function is only supposed to be called by the JCFL
* library
*/
public void startDocument() {
logger.info("New CDO Object");
}
