Package org.drools.compiler.compiler

Examples of org.drools.compiler.compiler.DrlParser

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        assertNotNull( result );
    }

    public static void DrlFile(String filename) throws Exception {

        DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
        final PackageDescr pkgOriginal = parser.parse( new InputStreamReader( DumperTestHelper.class.getResourceAsStream( filename ) ) );
        final DrlDumper dumper = new DrlDumper();
        String result1 = dumper.dump( pkgOriginal );
        final PackageDescr pkgDerivated = parser.parse( new StringReader( result1 ) );
        String result2 = dumper.dump( pkgDerivated );
        System.out.println( result1 );

        assertEqualsIgnoreWhitespace( result1,
                                      result2 );
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        assertEqualsIgnoreWhitespace( result1,
                                      result2 );
    }

    public static String dump(String filename) throws Exception {
        DrlParser parser = new DrlParser(LanguageLevelOption.DRL6);
        final PackageDescr pkgOriginal = parser.parse( new InputStreamReader( DumperTestHelper.class.getResourceAsStream( filename ) ) );
        final DrlDumper dumper = new DrlDumper();
        return dumper.dump( pkgOriginal );
    }
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    }

    @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() );
    }
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    }

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

    @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() );
    }
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                      first.getObjectType() );
    }

    @Test
    public void testExpanderLineSpread() throws Exception {
        final DrlParser parser = new DrlParser(LanguageLevelOption.DRL6);
        final PackageDescr pkg = parser.parse( this.getReader( "expander_spread_lines.dslr" ),
                                               this.getReader( "complex.dsl" ) );

        assertFalse( parser.getErrors().toString(),
                     parser.hasErrors() );

        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );
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    }

    @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() );
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    }

    @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() );
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     */
    public void addPackageFromDrl(final Reader reader,
                                  final Resource sourceResource) throws DroolsParserException,
                                                                        IOException {
        this.resource = sourceResource;
        final DrlParser parser = new DrlParser(configuration.getLanguageLevel());
        final PackageDescr pkg = parser.parse(sourceResource, reader);
        this.results.addAll(parser.getErrors());
        if (pkg == null) {
            addBuilderResult(new ParserError(sourceResource, "Parser returned a null Package", 0, 0));
        }

        if (!parser.hasErrors()) {
            addPackage(pkg);
        }
        this.resource = null;
    }
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        // dump the generated DRL if the dump dir was configured
        if (this.configuration.getDumpDir() != null) {
            dumpDrlGeneratedFromDTable(this.configuration.getDumpDir(), generatedDrl, resource.getSourcePath());
        }

        DrlParser parser = new DrlParser(this.configuration.getLanguageLevel());
        PackageDescr pkg = parser.parse(resource, new StringReader(generatedDrl));
        this.results.addAll(parser.getErrors());
        if (pkg == null) {
            addBuilderResult(new ParserError(resource, "Parser returned a null Package", 0, 0));
        }
        return parser.hasErrors() ? null : pkg;
    }
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Related Classes of org.drools.compiler.compiler.DrlParser

  • org.drools.compiler.builder.impl.KnowledgeBuilderImpl
  • org.drools.compiler.CommonTestMethodBase
  • org.drools.compiler.compiler.xml.rules.DumperTestHelper
  • org.drools.compiler.integrationtests.ConsequenceOffsetTest
  • org.drools.compiler.integrationtests.LargeRuleBase
  • org.drools.compiler.integrationtests.LargeRuleBaseSerializationTest
  • org.drools.compiler.integrationtests.Misc2Test
  • org.drools.compiler.integrationtests.MiscTest
  • org.drools.compiler.integrationtests.waltz.Waltz
  • org.drools.compiler.kie.util.ChangeSetBuilder
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