@Test public void testMVELDebugSymbols() throws DroolsParserException { MVELDebugHandler.setDebugMode(true); try { final DrlParser parser = new DrlParser(LanguageLevelOption.DRL5); final PackageDescr pkgDescr = parser.parse(new InputStreamReader(getClass().getResourceAsStream("mvel_rule.drl"))); // just checking there is no parsing errors assertFalse(parser.getErrors().toString(), parser.hasErrors()); InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools"); final RuleDescr ruleDescr = pkgDescr.getRules().get(0); final RuleBuilder builder = new RuleBuilder(); final KnowledgeBuilderImpl pkgBuilder = new KnowledgeBuilderImpl(pkg); final KnowledgeBuilderConfigurationImpl conf = pkgBuilder.getBuilderConfiguration(); DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry(); Dialect dialect = dialectRegistry.getDialect("mvel"); RuleBuildContext context = new RuleBuildContext(pkgBuilder, ruleDescr, dialectRegistry, pkg, dialect); builder.build(context); assertTrue(context.getErrors().toString(), context.getErrors().isEmpty()); final RuleImpl rule = context.getRule(); MVELConsequence mvelCons = (MVELConsequence) rule.getConsequence(); mvelCons.compile( (MVELDialectRuntimeData) pkgBuilder .getPackageRegistry(pkg.getName()) .getDialectRuntimeRegistry() .getDialectData("mvel")); String s = DebugTools.decompile(mvelCons.getCompExpr()); int fromIndex = 0; int count = 0; while ((fromIndex = s.indexOf("DEBUG_SYMBOL", fromIndex + 1)) > -1) { count++; } assertEquals(4, count); } finally { MVELDebugHandler.setDebugMode(false); } }
@Test public void testDebug() throws Exception { String rule = "package com.sample; dialect \"mvel\" rule myRule when then\n System.out.println( \"test\" ); end"; PackageBuilder builder = new PackageBuilder(); DrlParser parser = new DrlParser(LanguageLevelOption.DRL5); PackageDescr packageDescr = parser.parse(rule); RuleDescr ruleDescr = packageDescr.getRules().get(0); builder = new PackageBuilder(); builder.addPackage(packageDescr); Package pkg = builder.getPackage(); MVELConsequence consequence = (MVELConsequence) pkg.getRule("myRule").getConsequence(); String sourceName = ((CompiledExpression) consequence.getCompExpr()).getSourceName(); System.out.println(sourceName); String ruleName = ruleDescr.getNamespace() + "." + ruleDescr.getClassName(); System.out.println(ruleName); assertEquals(sourceName, ruleName); }
public void build(final RuleBuildContext context, String consequenceName) { // pushing consequence LHS into the stack for variable resolution context.getBuildStack().push(context.getRule().getLhs()); try { MVELDialect dialect = (MVELDialect) context.getDialect(context.getDialect().getId()); final RuleDescr ruleDescr = context.getRuleDescr(); String text = (Rule.DEFAULT_CONSEQUENCE_NAME.equals(consequenceName)) ? (String) ruleDescr.getConsequence() : (String) ruleDescr.getNamedConsequences().get(consequenceName); text = processMacros(text); Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule()); AnalysisResult analysis = dialect.analyzeBlock( context, context.getRuleDescr(), dialect.getInterceptors(), text, new BoundIdentifiers( DeclarationScopeResolver.getDeclarationClasses(decls), context.getPackageBuilder().getGlobals(), null, KnowledgeHelper.class), null, "drools", KnowledgeHelper.class); if (analysis == null) { // something bad happened, issue already logged in errors return; } final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers(); final Declaration[] declarations = new Declaration[usedIdentifiers.getDeclrClasses().size()]; String[] declrStr = new String[declarations.length]; int j = 0; for (String str : usedIdentifiers.getDeclrClasses().keySet()) { declrStr[j] = str; declarations[j++] = decls.get(str); } Arrays.sort(declarations, SortDeclarations.instance); for (int i = 0; i < declrStr.length; i++) { declrStr[i] = declarations[i].getIdentifier(); } context.getRule().setRequiredDeclarationsForConsequence(consequenceName, declrStr); MVELCompilationUnit unit = dialect.getMVELCompilationUnit( text, analysis, declarations, null, null, context, "drools", KnowledgeHelper.class, false); MVELConsequence expr = new MVELConsequence(unit, dialect.getId()); if (Rule.DEFAULT_CONSEQUENCE_NAME.equals(consequenceName)) { context.getRule().setConsequence(expr); } else { context.getRule().addNamedConsequence(consequenceName, expr); } MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData("mvel"); data.addCompileable(context.getRule(), expr); expr.compile(data); } catch (final Exception e) { copyErrorLocation(e, context.getRuleDescr()); context.addError( new DescrBuildError( context.getParentDescr(), context.getRuleDescr(), null, "Unable to build expression for 'consequence': " + e.getMessage() + " '" + context.getRuleDescr().getConsequence() + "'")); } }