Package org.drools.compiler.lang.dsl

Examples of org.drools.compiler.lang.dsl.DSLTokenizedMappingFile

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    }

    @Test
    public void testANTLREnumExpand() throws Exception {
        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]When the credit rating is {rating:ENUM:Applicant.creditRating} = applicant:Applicant(credit=={rating})";
        file.parseAndLoad( new StringReader( dsl ) );
        assertEquals( 0,
                      file.getErrors().size() );
        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping( file.getMapping() );
        String source = "rule \"TestNewDslSetup\"\ndialect \"mvel\"\nwhen\nWhen the credit rating is AA\nthen \nend";

        //        String source="rule \"TestNewDslSetup\"\n"+
        //                        "dialect \"mvel\"\n"+
        //                        "when\n"+
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        checkExpansion(source, expected);
    }

    private void checkExpansion(String source, String expected) throws Exception {
        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]There is an TestObject=TestObject()\n"
                + "[when]-startDate is before {date}=startDate>DateUtils.parseDate(\"{date}\")\n"
                + "[when]-endDate is after {date}=endDate>DateUtils.parseDate(\"{date}\")";
        file.parseAndLoad( new StringReader( dsl ) );
        assertEquals( 0,
                file.getErrors().size() );

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping( file.getMapping() );

        String drl = ex.expand( source );
        assertFalse( ex.hasErrors() );

        assertEquals( expected, drl );
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        assertEquals( expected, drl );
    }

    @Test
    public void testExpandQuery() throws Exception {
        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]There is a person=Person()\n" +
                "[when]- {field:\\w*} {operator} {value:\\d*}={field} {operator} {value}\n" +
                "[when]is greater than=>";

        String source = "query \"isMature\"\n" +
                "There is a person\n" +
                "- age is greater than 18\n" +
                "end\n";

        String expected = "query \"isMature\"\n" +
                "Person(age  >  18)\n" +
                "end\n";

        file.parseAndLoad( new StringReader( dsl ) );
        assertEquals( 0,
                file.getErrors().size() );

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping( file.getMapping() );

        String drl = ex.expand( source );
        assertFalse( ex.hasErrors() );

        assertEquals( expected, drl );
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        assertEquals( expected, drl );
    }

    @Test
    public void testExpandExpr() throws Exception {
        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]Name of Applicant {nameVar:CF:Applicant.age}= System.out.println({nameVar})";

        String source = "rule \"test rule for custom form in DSL\"\n" +
            "     dialect \"mvel\"\n" +
            "     when\n" +
            "         Name of Applicant Bojan Oklahoma and NJ,Andrew AMW Test\n" +
            "     then\n" +
            "end";

        String expected = "rule \"test rule for custom form in DSL\"\n" +
                "     dialect \"mvel\"\n" +
                "     when\n" +
                "         System.out.println(Bojan Oklahoma and NJ,Andrew AMW Test)\n" +
                "     then\n" +
                "end";

        file.parseAndLoad( new StringReader( dsl ) );
        assertEquals( 0,
                file.getErrors().size() );

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping( file.getMapping() );

        String drl = ex.expand( source );
       
        assertFalse( ex.hasErrors() );
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    }

    @Test(timeout=1000)
    public void testExpandInfiniteLoop() throws Exception {
        // DROOLS-73
        DSLMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]Foo with {var} bars=Foo( bars == {var} )";
        file.parseAndLoad( new StringReader( dsl ) );
        assertEquals( 0, file.getErrors().size() );

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping( file.getMapping() );
        String source = "rule 'dsl rule'\nwhen\n Foo with {var} bars\nthen\n\nend";
        ex.expand( source );
        assertFalse( ex.hasErrors() );
    }
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    @Test
    public void testParseFile() {
        try {
            final Reader reader = new InputStreamReader( this.getClass().getResourceAsStream( this.filename ) );
            this.file = new DSLTokenizedMappingFile();

            final boolean parsingResult = this.file.parseAndLoad( reader );
            reader.close();

            assertTrue( this.file.getErrors().toString(),
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    @Test
    public void testParseFileWithBrackets() {
        String file = "[when]ATTRIBUTE \"{attr}\" IS IN [{list}]=Attribute( {attr} in ({list}) )";
        try {
            final Reader reader = new StringReader( file );
            this.file = new DSLTokenizedMappingFile();

            final boolean parsingResult = this.file.parseAndLoad( reader );
            reader.close();

            assertTrue( this.file.getErrors().toString(),
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    @Test
    public void testParseFileWithEscaptedBrackets() {
        String file = "[when]ATTRIBUTE \"{attr}\" IS IN \\[{list}\\]=Attribute( {attr} in ({list}) )";
        try {
            final Reader reader = new StringReader( file );
            this.file = new DSLTokenizedMappingFile();

            final boolean parsingResult = this.file.parseAndLoad( reader );
            reader.close();

            assertTrue( this.file.getErrors().toString(),
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        String file = "[then]TEST=System.out.println(\"DO_SOMETHING\");\n" +
                      "[when]code {code1} occurs and sum of all digit not equal \\( {code2} \\+ {code3} \\)=AAAA( cd1 == {code1}, cd2 != ( {code2} + {code3} ))\n" +
                      "[when]code {code1} occurs=BBBB\n";
        try {
            final Reader reader = new StringReader( file );
            this.file = new DSLTokenizedMappingFile();

            final boolean parsingResult = this.file.parseAndLoad( reader );
            reader.close();

            assertTrue( this.file.getErrors().toString(),
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    @Test
    public void testParseFileWithEscaptedEquals() {
        String file = "[when]something:\\={value}=Attribute( something == \"{value}\" )";
        try {
            final Reader reader = new StringReader( file );
            this.file = new DSLTokenizedMappingFile();

            final boolean parsingResult = this.file.parseAndLoad( reader );
            reader.close();

            assertTrue( this.file.getErrors().toString(),
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Related Classes of org.drools.compiler.lang.dsl.DSLTokenizedMappingFile

  • org.antlr.runtime.ANTLRReaderStream
  • org.antlr.runtime.CommonTokenStream
  • org.antlr.runtime.tree.CommonTree
  • org.antlr.runtime.tree.CommonTreeNodeStream
  • org.drools.compiler.builder.impl.KnowledgeBuilderImpl
  • org.drools.compiler.compiler.DrlParserTest
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.ParserError
  • org.drools.compiler.lang.dsl.ANTLRDSLTest
  • org.drools.compiler.lang.dsl.DefaultExpanderTest
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