Package org.drools.compiler.lang.dsl

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

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                "    then\n" +
                "        System.out.println(\"Your First Rule\");\n" +
                "\n" +
                "end";

        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        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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    @Before
    public void setUp() throws Exception {
        final String filename = "test_metainfo.dsl";
        final Reader reader = new InputStreamReader(this.getClass().getResourceAsStream(filename));
        this.file = new DSLTokenizedMappingFile();
        this.tokenizedFile = new DSLTokenizedMappingFile();
        this.file.parseAndLoad(reader);
        reader.close();

        final Reader reader2 = new InputStreamReader(this.getClass().getResourceAsStream(filename));
        this.tokenizedFile.parseAndLoad(reader2);
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        final String result = this.expander.expand(rules);
    }

    @Test
    public void testExpandParts() throws Exception {
        DSLMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]foo=Foo()\n[then]bar {num}=baz({num});";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());
        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());

        //System.err.println(ex.expand( "rule 'x' \n when \n foo \n then \n end" ));
    }
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        //System.err.println(ex.expand( "rule 'x' \n when \n foo \n then \n end" ));
    }

    @Test
    public void testExpandKeyword() throws Exception {
        DSLMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[keyword]key {param}=Foo( attr=={param} )";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());
        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());

        String source = "rule x\nwhen\n key 1 \n key 2 \nthen\nend";
        String drl = ex.expand(source);
        System.out.println(drl);
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        //System.err.println(ex.expand( "rule 'x' \n when \n foo \n then \n end" ));
    }

    @Test
    public void testANTLRExpandParts() throws Exception {
        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]foo=Foo()\n[then]bar {num}=baz({num});";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());
        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());

        //System.err.println(ex.expand( "rule 'x' \n when \n foo \n then \n end" ));
    }
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    }

    @Test
    public void testExpandFailure() throws Exception {

        DSLMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]foo=Foo()\n[then]bar {num}=baz({num});";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());
        String source = "rule 'q'\nagenda-group 'x'\nwhen\n    foo  \nthen\n    bar 42\nend";
        String drl = ex.expand(source);
        assertFalse(ex.hasErrors());

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

        source = "rule 'q' agenda-group 'x'\nwhen\n    foos \nthen\n    bar 42\n end";
        drl = ex.expand(source);
        //System.out.println( drl );
        assertTrue(ex.hasErrors());
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    }

    @Test
    public void testANTLRExpandFailure() throws Exception {

        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]foo=Foo()\n[then]bar {num}=baz({num});";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());
        String source = "rule 'q'\nagenda-group 'x'\nwhen\n    foo  \nthen\n    bar 42\nend";
        String drl = ex.expand(source);
        assertFalse(ex.hasErrors());

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

        source = "rule 'q' agenda-group 'x'\nwhen\n    foos \nthen\n    bar 42\n end";
        drl = ex.expand(source);
        //System.out.println( drl );
        assertTrue(ex.hasErrors());
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    }

    @Test
    public void testExpandWithKeywordClashes() throws Exception {

        DSLMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]Invoke rule executor=ruleExec: RuleExecutor()\n" + "[then]Execute rule \"{id}\"=ruleExec.ExecuteSubRule( new Long({id}));";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());
        String source = "package something;\n\nrule \"1\"\nwhen\n    Invoke rule executor\nthen\n    Execute rule \"5\"\nend";
        String expected = "package something;\n\nrule \"1\"\nwhen\n   ruleExec: RuleExecutor()\nthen\n   ruleExec.ExecuteSubRule( new Long(5));\nend\n";
        String drl = ex.expand(source);
        //        System.out.println("["+drl+"]" );
        //        System.out.println("["+expected+"]" );
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    }

    @Test
    public void testANTLRExpandWithKeywordClashes() throws Exception {

        DSLTokenizedMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]Invoke rule executor=ruleExec: RuleExecutor()\n" + "[then]Execute rule \"{id}\"=ruleExec.ExecuteSubRule( new Long({id}));";
        file.parseAndLoad(new StringReader(dsl));
        assertEquals(0,
                file.getErrors().size());

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());
        String source = "package something;\n\nrule \"1\"\nwhen\n    Invoke rule executor\nthen\n    Execute rule \"5\"\nend";
        String expected = "package something;\n\nrule \"1\"\nwhen\n    ruleExec: RuleExecutor()\nthen\n    ruleExec.ExecuteSubRule( new Long(5));\nend";
        String drl = ex.expand(source);
        //        System.out.println("["+drl+"]" );
        //        System.out.println("["+expected+"]" );
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                drl);
    }

    @Test
    public void testLineNumberError() throws Exception {
        DSLMappingFile file = new DSLTokenizedMappingFile();
        String dsl = "[when]foo=Foo()" + NL + "[then]bar {num}=baz({num});";
        file.parseAndLoad(new StringReader(dsl));

        DefaultExpander ex = new DefaultExpander();
        ex.addDSLMapping(file.getMapping());
        String source = "rule 'q'" + NL + "agenda-group 'x'" + NL + "when" + NL + "    __  " + NL +
                "then" + NL + "    bar 42" + NL + "\tgoober" + NL + "end";
        ex.expand(source);
        assertTrue(ex.hasErrors());
        assertEquals(2,
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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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