Package org.drools.compiler.lang.dsl

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

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                IStorageEditorInput input = (IStorageEditorInput) editorInput;
                stream = input.getStorage().getContents();
            }

            model = new NLGrammarModel();
            DSLMappingFile file = new DSLTokenizedMappingFile();
            file.parseAndLoad( new InputStreamReader( stream ) );
            model.addEntries( file.getMapping().getEntries() );
            stream.close();

        } catch ( CoreException e ) {
            throw new IllegalStateException( "Unable to load DSL configuration file. (CoreException: " + e.getMessage() + ")" );
        } catch ( IOException e ) {
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                String content = dslRuleEditor.getContent();
                Reader reader = DSLAdapter.getDSLContent(content, dslRuleEditor.getResource());
                if (reader == null) {
                    throw new IllegalArgumentException("Could not find dsl definition.");
                }
                DSLMappingFile mapping = new DSLTokenizedMappingFile();
                mapping.parseAndLoad(reader);
                reader.close();
                expander.addDSLMapping(mapping.getMapping());
                expander.expand(content);
                // if translation succeeds, change to drl viewer
                drlRuleViewer.setInput(getEditorInput());
                drlRuleViewer.setSelectedRange(selection);
            } catch (Throwable t) {
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        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);
        assertEqualsIgnoreWhitespace( "rule 'foo' \n when \n Something() \n then \n another(); \nend", result );
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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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    }

    @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 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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                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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    }

    @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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        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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Related Classes of org.drools.compiler.lang.dsl.DSLMappingFile

  • org.drools.compiler.compiler.DrlParserTest
  • org.drools.compiler.lang.dsl.DefaultExpanderTest
  • org.drools.eclipse.dsl.editor.DSLEditor
  • org.drools.eclipse.dsl.editor.DSLRuleEditor2
  • org.drools.eclipse.dsl.editor.DSLtoDRLDocument
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