Examples with DrlParser org.drools.compiler.compiler.DrlParser used on opensource projects

Example 11 with DrlParser

use of org.drools.compiler.compiler.DrlParser in project drools by kiegroup.

the class MVELDebugTest method testDebug.

@Test
public void testDebug() throws Exception {
    String rule = "package com.sample; dialect \"mvel\" rule myRule when then\n System.out.println( \"test\" ); end";
    KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
    PackageDescr packageDescr = parser.parse(null, rule);
    RuleDescr ruleDescr = packageDescr.getRules().get(0);
    builder = new KnowledgeBuilderImpl();
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage("com.sample");
    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);
}

Example 12 with DrlParser

use of org.drools.compiler.compiler.DrlParser in project drools by kiegroup.

the class RuleParserTest method testExpanderMultipleConstraints.

@Test
public void testExpanderMultipleConstraints() throws Exception {
    final DrlParser parser = new DrlParser(LanguageLevelOption.DRL6);
    final PackageDescr pkg = parser.parse(this.getReader("expander_multiple_constraints.dslr"), this.getReader("multiple_constraints.dsl"));
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals(2, rule.getLhs().getDescrs().size());
    PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get(0);
    assertEquals("Person", pattern.getObjectType());
    assertEquals(2, pattern.getConstraint().getDescrs().size());
    assertEquals("age < 42", ((ExprConstraintDescr) pattern.getConstraint().getDescrs().get(0)).getExpression());
    assertEquals("location==atlanta", ((ExprConstraintDescr) pattern.getConstraint().getDescrs().get(1)).getExpression());
    pattern = (PatternDescr) rule.getLhs().getDescrs().get(1);
    assertEquals("Bar", pattern.getObjectType());
    assertNotNull((String) rule.getConsequence());
}

Example 13 with DrlParser

use of org.drools.compiler.compiler.DrlParser in project drools by kiegroup.

the class RuleParserTest method testPackageWithError2.

@Test
public void testPackageWithError2() throws Exception {
    final String source = "package 12 12312 231";
    final DrlParser parser = new DrlParser(LanguageLevelOption.DRL6);
    final PackageDescr pkg = parser.parse(true, new StringReader(source));
    assertTrue(parser.hasErrors());
    assertEquals("", pkg.getName());
}

Example 14 with DrlParser

use of org.drools.compiler.compiler.DrlParser in project drools by kiegroup.

the class RuleParserTest method testPackage.

@Test
public void testPackage() throws Exception {
    final String source = "package foo.bar.baz";
    final DrlParser parser = new DrlParser(LanguageLevelOption.DRL6);
    final PackageDescr pkg = parser.parse(new StringReader(source));
    assertFalse(parser.hasErrors());
    assertEquals("foo.bar.baz", pkg.getName());
}

Example 15 with DrlParser

use of org.drools.compiler.compiler.DrlParser in project drools by kiegroup.

the class RuleParserTest method testExpanderMultipleConstraintsFlush.

@Test
public void testExpanderMultipleConstraintsFlush() throws Exception {
    final DrlParser parser = new DrlParser(LanguageLevelOption.DRL6);
    // this is similar to the other test, but it requires a flush to add the
    // constraints
    final PackageDescr pkg = parser.parse(this.getReader("expander_multiple_constraints_flush.dslr"), this.getReader("multiple_constraints.dsl"));
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals(1, rule.getLhs().getDescrs().size());
    final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get(0);
    assertEquals("Person", pattern.getObjectType());
    assertEquals(2, pattern.getConstraint().getDescrs().size());
    assertEquals("age < 42", ((ExprConstraintDescr) pattern.getConstraint().getDescrs().get(0)).getExpression());
    assertEquals("location==atlanta", ((ExprConstraintDescr) pattern.getConstraint().getDescrs().get(1)).getExpression());
    assertNotNull((String) rule.getConsequence());
}