Examples with DefaultExpander org.drools.compiler.lang.dsl.DefaultExpander used on opensource projects

Example 6 with DefaultExpander

use of org.drools.compiler.lang.dsl.DefaultExpander in project drools by kiegroup.

the class DrlParserTest method testExpandDRLUsingInjectedExpander.

@Test
public void testExpandDRLUsingInjectedExpander() throws Exception {
    String dsl = "[condition]Something=Something()" + NL + "[then]another=another();";
    String drl = "rule 'foo' " + NL + " when " + NL + " Something " + NL + " then " + NL + " another " + NL + "end";
    DefaultExpanderResolver resolver = new DefaultExpanderResolver(new StringReader(dsl));
    final DSLMappingFile file = new DSLTokenizedMappingFile();
    if (file.parseAndLoad(new StringReader(dsl))) {
        final Expander expander = new DefaultExpander();
        expander.addDSLMapping(file.getMapping());
        resolver.addExpander("*", expander);
    } else {
        throw new RuntimeException("Error parsing and loading DSL file." + file.getErrors());
    }
    DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
    String result = parser.getExpandedDRL(drl, resolver);
    Assertions.assertThat("rule 'foo' " + NL + " when " + NL + " Something() " + NL + " then " + NL + " another(); " + NL + "end").isEqualToIgnoringWhitespace(result);
}

Example 7 with DefaultExpander

use of org.drools.compiler.lang.dsl.DefaultExpander in project drools by kiegroup.

the class RuleModelDRLPersistenceUnmarshallingTest method testDSLExpansionLHS_WithKeyword_then.

@Test
public // https://bugzilla.redhat.com/show_bug.cgi?id=1173842
void testDSLExpansionLHS_WithKeyword_then() {
    String expected_dslr = "rule \"rule1\"\n" + "dialect \"mvel\"\n" + "when\n" + "There is an Applicant\n" + "- age more then 55\n" + "then\n" + "end\n";
    String expected_drl = "rule \"rule1\"\n" + "dialect \"mvel\"\n" + "when\n" + "Applicant( age > 55 )\n" + "then\n" + "end\n";
    final String dslDefinition1 = "There is an Applicant";
    final String dslFile1 = "[when]" + dslDefinition1 + "=Applicant( )";
    final String dslDefinition2 = "- age more then {age}";
    final String dslFile2 = "[when]" + dslDefinition2 + "=age > {age}";
    final RuleModel m = RuleModelDRLPersistenceImpl.getInstance().unmarshalUsingDSL(expected_dslr, Collections.emptyList(), dmo, dslFile1, dslFile2);
    assertNotNull(m);
    assertEquals(2, m.lhs.length);
    assertTrue(m.lhs[0] instanceof DSLSentence);
    assertTrue(m.lhs[1] instanceof DSLSentence);
    DSLSentence dslSentence1 = (DSLSentence) m.lhs[0];
    assertEquals(dslDefinition1, dslSentence1.getDefinition());
    assertEquals(0, dslSentence1.getValues().size());
    DSLSentence dslSentence2 = (DSLSentence) m.lhs[1];
    assertEquals(dslDefinition2, dslSentence2.getDefinition());
    assertEquals(1, dslSentence2.getValues().size());
    DSLVariableValue dslVariableValue = dslSentence2.getValues().get(0);
    assertEquals("55", dslVariableValue.getValue());
    // Check round-trip
    assertEqualsIgnoreWhitespace(expected_dslr, RuleModelDRLPersistenceImpl.getInstance().marshal(m));
    // Check DSL expansion (as BZ stated runtime was flawed as well)
    final Expander expander = new DefaultExpander();
    final List<DSLMappingFile> dsls = new ArrayList<>();
    try {
        final DSLTokenizedMappingFile dslTokenizer1 = new DSLTokenizedMappingFile();
        if (dslTokenizer1.parseAndLoad(new StringReader(dslFile1))) {
            dsls.add(dslTokenizer1);
        } else {
            fail();
        }
        final DSLTokenizedMappingFile dslTokenizer2 = new DSLTokenizedMappingFile();
        if (dslTokenizer2.parseAndLoad(new StringReader(dslFile2))) {
            dsls.add(dslTokenizer2);
        } else {
            fail();
        }
    } catch (IOException e) {
        fail();
    }
    for (DSLMappingFile dsl : dsls) {
        expander.addDSLMapping(dsl.getMapping());
    }
    final String actual_drl = expander.expand(expected_dslr);
    assertEqualsIgnoreWhitespace(expected_drl, actual_drl);
}

Example 8 with DefaultExpander

use of org.drools.compiler.lang.dsl.DefaultExpander in project drools-wb by kiegroup.

the class GuidedRuleDSLRSourceService method getDSLExpander.

/**
 * Returns an expander for DSLs (only if there is a DSL configured for this package).
 */
private Expander getDSLExpander(final Path path) {
    final Expander expander = new DefaultExpander();
    final List<DSLMappingFile> dsls = getDSLMappingFiles(path);
    for (DSLMappingFile dsl : dsls) {
        expander.addDSLMapping(dsl.getMapping());
    }
    return expander;
}

Example 9 with DefaultExpander

use of org.drools.compiler.lang.dsl.DefaultExpander in project drools-wb by kiegroup.

the class GuidedRuleDslrFileIndexer method getDSLExpander.

/**
 * Returns an expander for DSLs (only if there is a DSL configured for this package).
 * @param path The {@link Path} of the resource to index
 * @return a {@link Expander} used to produce a DRL of the file
 */
public Expander getDSLExpander(final Path path) {
    final Expander expander = new DefaultExpander();
    final List<DSLMappingFile> dsls = getDSLMappingFiles(path);
    for (DSLMappingFile dsl : dsls) {
        expander.addDSLMapping(dsl.getMapping());
    }
    return expander;
}

Example 10 with DefaultExpander

use of org.drools.compiler.lang.dsl.DefaultExpander in project drools by kiegroup.

the class DSLMappingEntryTest method makeExpander.

private DefaultExpander makeExpander(DSLMappingEntry... entries) {
    DefaultExpander expander = new DefaultExpander();
    DefaultDSLMapping mapping = new DefaultDSLMapping();
    for (DSLMappingEntry entry : entries) {
        mapping.addEntry(entry);
    }
    List<String> options = new ArrayList<String>();
    options.add("result");
    options.add("when");
    options.add("steps");
    mapping.setOptions(options);
    expander.addDSLMapping(mapping);
    return expander;
}