use of org.drools.compiler.lang.descr.CollectDescr in project drools by kiegroup.
the class ModelGeneratorVisitor method visit.
@Override
public void visit(PatternDescr descr) {
final PatternSourceDescr patternSource = descr.getSource();
if (patternSource != null && patternSource instanceof CollectDescr) {
fromCollectVisitor.trasformFromCollectToCollectList(descr, (CollectDescr) patternSource);
} else {
if (patternSource instanceof AccumulateDescr) {
AccumulateDescr accSource = (AccumulateDescr) patternSource;
if (accSource.getFunctions().isEmpty() || accSource.getFunctions().get(0).getBind() == null) {
patternVisitor.visit(descr).buildPattern();
accumulateVisitor.visit(accSource, descr);
} else {
accumulateVisitor.visit(accSource, descr);
patternVisitor.visit(descr).buildPattern();
}
} else {
patternVisitor.visit(descr).buildPattern();
}
}
}
use of org.drools.compiler.lang.descr.CollectDescr in project drools by kiegroup.
the class RuleModelDRLPersistenceImpl method parsePatternSource.
private IFactPattern parsePatternSource(final RuleModel m, final PatternDescr pattern, final PatternSourceDescr patternSource, final boolean isJavaDialect, final Map<String, String> boundParams, final PackageDataModelOracle dmo) {
if (pattern.getIdentifier() != null) {
boundParams.put(pattern.getIdentifier(), pattern.getObjectType());
}
if (patternSource instanceof AccumulateDescr) {
AccumulateDescr accumulate = (AccumulateDescr) patternSource;
FromAccumulateCompositeFactPattern fac = new FromAccumulateCompositeFactPattern();
fac.setSourcePattern(parseBaseDescr(m, accumulate.getInput(), isJavaDialect, boundParams, dmo));
fac.setInitCode(accumulate.getInitCode());
fac.setActionCode(accumulate.getActionCode());
fac.setReverseCode(accumulate.getReverseCode());
fac.setResultCode(accumulate.getResultCode());
FactPattern factPattern = new FactPattern(pattern.getObjectType());
factPattern.setBoundName(pattern.getIdentifier());
parseConstraint(m, factPattern, pattern.getConstraint(), isJavaDialect, boundParams, dmo);
fac.setFactPattern(factPattern);
for (AccumulateDescr.AccumulateFunctionCallDescr func : accumulate.getFunctions()) {
String funcName = func.getFunction();
boolean first = true;
StringBuilder sb = new StringBuilder();
for (String param : func.getParams()) {
if (first) {
first = false;
} else {
sb.append(", ");
}
sb.append(param);
}
fac.setFunction(funcName + "(" + sb + ")");
break;
}
return fac;
} else if (patternSource instanceof CollectDescr) {
CollectDescr collect = (CollectDescr) patternSource;
FromCollectCompositeFactPattern fac = new FromCollectCompositeFactPattern();
fac.setRightPattern(parseBaseDescr(m, collect.getInputPattern(), isJavaDialect, boundParams, dmo));
fac.setFactPattern(getFactPattern(m, pattern, isJavaDialect, boundParams, dmo));
return fac;
} else if (patternSource instanceof EntryPointDescr) {
EntryPointDescr entryPoint = (EntryPointDescr) patternSource;
FromEntryPointFactPattern fep = new FromEntryPointFactPattern();
fep.setEntryPointName(entryPoint.getText());
fep.setFactPattern(getFactPattern(m, pattern, isJavaDialect, boundParams, dmo));
return fep;
} else if (patternSource instanceof FromDescr) {
FromDescr from = (FromDescr) patternSource;
FromCompositeFactPattern fcfp = new FromCompositeFactPattern();
FactPattern factPattern = new FactPattern(pattern.getObjectType());
factPattern.setBoundName(pattern.getIdentifier());
parseConstraint(m, factPattern, pattern.getConstraint(), isJavaDialect, boundParams, dmo);
fcfp.setFactPattern(factPattern);
ExpressionFormLine expression = new ExpressionFormLine();
fcfp.setExpression(expression);
String dataSource = from.getDataSource().toString();
String[] splitSource = dataSource.split("\\.");
ModelField[] fields = null;
for (int i = 0; i < splitSource.length; i++) {
String sourcePart = splitSource[i];
if (i == 0) {
String type = boundParams.get(sourcePart);
expression.appendPart(new ExpressionVariable(sourcePart, type, DataType.TYPE_NUMERIC));
fields = findFields(m, dmo, type);
} else {
ModelField modelField = null;
if (fields != null) {
for (ModelField field : fields) {
if (field.getName().equals(sourcePart)) {
modelField = field;
break;
}
}
}
if (modelField == null) {
final String previousClassName = expression.getClassType();
final List<MethodInfo> mis = dmo.getModuleMethodInformation().get(previousClassName);
boolean isMethod = false;
if (mis != null) {
for (MethodInfo mi : mis) {
if (mi.getName().equals(sourcePart)) {
expression.appendPart(new ExpressionMethod(mi.getName(), mi.getReturnClassType(), mi.getGenericType(), mi.getParametricReturnType()));
isMethod = true;
break;
}
}
}
if (isMethod == false) {
expression.appendPart(new ExpressionText(sourcePart));
}
} else {
expression.appendPart(new ExpressionField(sourcePart, modelField.getClassName(), modelField.getType()));
fields = findFields(m, dmo, modelField.getClassName());
}
}
}
return fcfp;
}
throw new RuntimeException("Unknown pattern source " + patternSource);
}
use of org.drools.compiler.lang.descr.CollectDescr in project drools by kiegroup.
the class RuleParserTest method testCollectWithNestedFrom.
@Test
public void testCollectWithNestedFrom() throws Exception {
final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "collect_with_nested_from.drl");
assertEquals(1, pkg.getRules().size());
final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
assertEquals(1, rule.getLhs().getDescrs().size());
final PatternDescr out = (PatternDescr) rule.getLhs().getDescrs().get(0);
final CollectDescr collect = (CollectDescr) out.getSource();
PatternDescr person = (PatternDescr) collect.getInputPattern();
assertEquals("Person", person.getObjectType());
final CollectDescr collect2 = (CollectDescr) person.getSource();
final PatternDescr people = collect2.getInputPattern();
assertEquals("People", people.getObjectType());
}
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