Examples with ParserError org.drools.drl.parser.ParserError used on opensource projects

Example 6 with ParserError

use of org.drools.drl.parser.ParserError in project drools by kiegroup.

the class XmlBifParser method loadBif.

public static Bif loadBif(Resource resource, ArrayList<KnowledgeBuilderError> errors) {
    InputStream is = null;
    try {
        is = resource.getInputStream();
    } catch (IOException e) {
        errors.add(new ParserError(resource, "Exception opening Stream:\n" + e.toString(), 0, 0));
        return null;
    }
    try {
        String encoding = resource instanceof InternalResource ? ((InternalResource) resource).getEncoding() : null;
        XStream xstream = encoding != null ? createNonTrustingXStream(new DomDriver(encoding)) : createNonTrustingXStream();
        initXStream(xstream);
        Bif bif = (Bif) xstream.fromXML(is);
        return bif;
    } catch (Exception e) {
        errors.add(new BayesNetworkAssemblerError(resource, "Unable to parse opening Stream:\n" + e.toString()));
        return null;
    }
}

Example 7 with ParserError

use of org.drools.drl.parser.ParserError in project drools by kiegroup.

the class KnowledgeBuilderTest method testDuplicateRuleNames.

@Test
public void testDuplicateRuleNames() throws Exception {
    final KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    RuleDescr ruleDescr;
    AndDescr lhs;
    PatternDescr patternDescr;
    FieldConstraintDescr literalDescr;
    final PackageDescr packageDescr = createBasicPackageWithOneRule(1, 1);
    ruleDescr = new RuleDescr("rule-1");
    ruleDescr.setLocation(42, 43);
    packageDescr.addRule(ruleDescr);
    lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    patternDescr = new PatternDescr(Cheese.class.getName(), "stilton");
    literalDescr = new FieldConstraintDescr("type");
    literalDescr.addRestriction(new LiteralRestrictionDescr("!=", null));
    patternDescr.addConstraint(literalDescr);
    ruleDescr.setConsequence("");
    ruleDescr = new RuleDescr("rule-2");
    ruleDescr.setLocation(42, 43);
    packageDescr.addRule(ruleDescr);
    lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    patternDescr = new PatternDescr(Cheese.class.getName(), "stilton");
    literalDescr = new FieldConstraintDescr("type");
    literalDescr.addRestriction(new LiteralRestrictionDescr("!=", null));
    patternDescr.addConstraint(literalDescr);
    ruleDescr.setConsequence("");
    builder.addPackage(packageDescr);
    assertLength(2, builder.getErrors().getErrors());
    final ParserError err = (ParserError) builder.getErrors().getErrors()[0];
    assertEquals(42, err.getRow());
    assertEquals(43, err.getCol());
}

Example 8 with ParserError

use of org.drools.drl.parser.ParserError in project drools by kiegroup.

the class DSLTokenizedMappingFile method parseAndLoad.

@Override
public boolean parseAndLoad(Reader dsl) throws IOException {
    List<ParserError> errors = new ArrayList<ParserError>();
    String text = readFile(dsl);
    dsl = new StringReader(text);
    try {
        DSLMapping mapping = buildFileMapping(errors, dsl);
        mapping.setOptions(optionSet);
        setMapping(mapping);
        List<ParserError> moderr = new ArrayList<ParserError>();
        for (ParserError err : errors) {
            int row = err.getRow();
            int col = err.getCol();
            if (row > 0) {
                int len;
                while ((len = lineLengths.get(row)) < col) {
                    col -= len + 1;
                    row++;
                }
            }
            moderr.add(new ParserError(err.getMessage(), row, col));
        }
        errors = moderr;
    } catch (Exception e) {
        final String msg = "Error parsing DSL mapping: " + e.getMessage();
        ParserError parserError = new ParserError(msg, -1, 0);
        errors.add(parserError);
    }
    setErrors(errors);
    return errors.isEmpty();
}

Example 9 with ParserError

use of org.drools.drl.parser.ParserError in project drools by kiegroup.

the class DrlxCompiler method toPackageDescr.

public PackageDescr toPackageDescr(Resource resource) throws IOException {
    ParseStart<CompilationUnit> context = ParseStart.DRLX_COMPILATION_UNIT;
    MvelParser mvelParser = new MvelParser(new ParserConfiguration(), false);
    ParseResult<CompilationUnit> result = mvelParser.parse(context, provider(resource.getReader()));
    if (result.isSuccessful()) {
        DrlxVisitor drlxCompiler = new DrlxVisitor();
        drlxCompiler.visit(result.getResult().get(), null);
        PackageDescr pkg = drlxCompiler.getPackageDescr();
        if (pkg == null) {
            this.results.add(new ParserError(resource, "Parser returned a null Package", 0, 0));
            return null;
        } else {
            pkg.setResource(resource);
            return pkg;
        }
    } else {
        for (Problem problem : result.getProblems()) {
            TokenRange tokenRange = problem.getLocation().get();
            Range range = tokenRange.getBegin().getRange().get();
            int lineCount = range.getLineCount();
            this.results.add(new ParserError(problem.getMessage(), lineCount, -1));
        }
        return null;
    }
}