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

Example 41 with DrlParser

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

the class ChangeSetBuilder method diffResource.

private static ResourceChangeSet diffResource(String file, byte[] originalBytes, byte[] currentBytes, List<TypeDeclarationDescr> typeDeclarations) {
    ResourceChangeSet pkgcs = new ResourceChangeSet(file, ChangeType.UPDATED);
    ResourceType type = ResourceType.determineResourceType(file);
    if (ResourceType.DRL.equals(type) || ResourceType.GDRL.equals(type) || ResourceType.RDRL.equals(type) || ResourceType.TDRL.equals(type)) {
        try {
            PackageDescr originalPkg = new DrlParser().parse(new ByteArrayResource(originalBytes));
            PackageDescr currentPkg = new DrlParser().parse(new ByteArrayResource(currentBytes));
            String pkgName = isEmpty(currentPkg.getName()) ? getDefaultPackageName() : currentPkg.getName();
            String oldPkgName = isEmpty(originalPkg.getName()) ? getDefaultPackageName() : originalPkg.getName();
            if (!oldPkgName.equals(pkgName)) {
                // so it is useless to further investigate other changes
                return pkgcs;
            }
            pkgcs.setPackageName(pkgName);
            for (RuleDescr crd : currentPkg.getRules()) {
                pkgcs.getLoadOrder().add(new ResourceChangeSet.RuleLoadOrder(pkgName, crd.getName(), crd.getLoadOrder()));
            }
            // needs to be cloned
            List<RuleDescr> orules = new ArrayList<>(originalPkg.getRules());
            diffDescrs(originalBytes, currentBytes, pkgcs, orules, currentPkg.getRules(), ResourceChange.Type.RULE, RULE_CONVERTER);
            // needs to be cloned
            List<FunctionDescr> ofuncs = new ArrayList<>(originalPkg.getFunctions());
            diffDescrs(originalBytes, currentBytes, pkgcs, ofuncs, currentPkg.getFunctions(), ResourceChange.Type.FUNCTION, FUNC_CONVERTER);
            // needs to be cloned
            List<GlobalDescr> oglobals = new ArrayList<>(originalPkg.getGlobals());
            diffDescrs(originalBytes, currentBytes, pkgcs, oglobals, currentPkg.getGlobals(), ResourceChange.Type.GLOBAL, GLOBAL_CONVERTER);
            for (TypeDeclarationDescr typeDeclaration : currentPkg.getTypeDeclarations()) {
                if (isEmpty(typeDeclaration.getNamespace())) {
                    typeDeclaration.setNamespace(isEmpty(currentPkg.getNamespace()) ? DEFAULT_PACKAGE : currentPkg.getNamespace());
                }
                typeDeclarations.add(typeDeclaration);
            }
        } catch (Exception e) {
            logger.error("Error analyzing the contents of " + file + ". Skipping.", e);
        }
    }
    pkgcs.getChanges().sort(Comparator.comparingInt(r -> r.getChangeType().ordinal()));
    return pkgcs;
}