Package org.drools.lang.descr

Examples of org.drools.lang.descr.FunctionDescr

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        assertEquals( "com.sample.Yada",
                      yada.getType() );
        assertEquals( "yada",
                      yada.getIdentifier() );

        final FunctionDescr functionDescr = (FunctionDescr) packageDescr.getFunctions().get( 0 );
        final List names = functionDescr.getParameterNames();
        assertEquals( "foo",
                      names.get( 0 ) );
        assertEquals( "bada",
                      names.get( 1 ) );

        final List types = functionDescr.getParameterTypes();
        assertEquals( "Bar",
                      types.get( 0 ) );
        assertEquals( "Bing",
                      types.get( 1 ) );

        assertEquals( "System.out.println(\"hello world\");",
                      functionDescr.getText().trim() );

        final QueryDescr queryDescr = (QueryDescr) packageDescr.getRules().get( 0 );
        assertEquals( "my query",
                      queryDescr.getName() );
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        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );

        assertEqualsIgnoreWhitespace( "yourFunction(new String[3] {\"a\",\"b\",\"c\"});",
                                      (String) rule.getConsequence() );
        final FunctionDescr func = (FunctionDescr) pkg.getFunctions().get( 0 );

        assertEquals( "String[]",
                      func.getReturnType() );
        assertEquals( "args[]",
                      func.getParameterNames().get( 0 ) );
        assertEquals( "String",
                      func.getParameterTypes().get( 0 ) );
    }
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        final List functions = pack.getFunctions();
        assertEquals( 2,
                      functions.size() );

        FunctionDescr func = (FunctionDescr) functions.get( 0 );
        assertEquals( "functionA",
                      func.getName() );
        assertEquals( "String",
                      func.getReturnType() );
        assertEquals( 2,
                      func.getParameterNames().size() );
        assertEquals( 2,
                      func.getParameterTypes().size() );
        assertEquals( 4,
                      func.getLine() );
        assertEquals( 0,
                      func.getColumn() );

        assertEquals( "String",
                      func.getParameterTypes().get( 0 ) );
        assertEquals( "s",
                      func.getParameterNames().get( 0 ) );

        assertEquals( "Integer",
                      func.getParameterTypes().get( 1 ) );
        assertEquals( "i",
                      func.getParameterNames().get( 1 ) );

        assertEqualsIgnoreWhitespace( "foo();",
                                      func.getText() );

        func = (FunctionDescr) functions.get( 1 );
        assertEquals( "functionB",
                      func.getName() );
        assertEqualsIgnoreWhitespace( "bar();",
                                      func.getText() );

        assertFalse( parser.hasErrors() );
    }
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            }

            if ( !packageDescr.getFunctions().isEmpty() ) {

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    if ( isEmpty( functionDescr.getNamespace() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setNamespace( packageDescr.getNamespace() );
                    }
                    if ( isEmpty( functionDescr.getDialect() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setDialect( pkgRegistry.getDialect() );
                    }
                    preCompileAddFunction( functionDescr );
                }

                // iterate and compile
                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    // inherit the dialect from the package
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    addFunction( functionDescr );
                }

                // We need to compile all the functions now, so scripting
                // languages like mvel can find them
                compileAll();

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    postCompileAddFunction( functionDescr );
                }
            }

            // iterate and compile
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    packageDescr.addImport(new ImportDescr("java.util.SortedSet"));
    packageDescr.addImport(new ImportDescr("java.util.TreeSet"));
  }
 
  private static void addFunctions(PackageDescr packageDescr) {
    FunctionDescr functionDescr = new FunctionDescr("foo", "void");
    functionDescr.addParameter("String", "arg1");
    String body =
      "Set myHashSet = new HashSet();" +
      "myHashSet.add(arg1);" +
      "List myArrayList = new ArrayList();" +
      "myArrayList.add(arg1);" +
      "List myLinkedList = new LinkedList();" +
      "myLinkedList.add(arg1);" +
      "Set myTreeSet = new TreeSet();" +
      "myTreeSet.add(arg1);";
    functionDescr.setText(body);
    packageDescr.addFunction(functionDescr);
  }
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            }

            if ( !packageDescr.getFunctions().isEmpty() ) {

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    if ( isEmpty( functionDescr.getNamespace() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setNamespace( this.defaultNamespace );
                    }
                    if ( isEmpty( functionDescr.getDialect() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setDialect( pkgRegistry.getDialect() );
                    }
                    preCompileAddFunction( functionDescr );
                }

                // iterate and compile
                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    // inherit the dialect from the package
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    addFunction( functionDescr );
                }

                // We need to compile all the functions now, so scripting
                // languages like mvel can find them
                compileAll();

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    postCompileAddFunction( functionDescr );
                }
            }

            // iterate and compile
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            appendable.append( ";\n" );
        }
    }
   
    public static FunctionDescr createFunctionDescr(SExpression name, LispForm params, List<SExpression> content) {
        FunctionDescr descr = new FunctionDescr(((LispAtom)name).getValue(), "Object" );
        for ( SExpression sExpr  : params.getSExpressions() ) {
            String param = ((LispAtom)sExpr).getValue().trim();
            if ( param.charAt( 0 ) == '"' ) {
                param = param.substring( 1 );
            }
           
            if ( param.charAt( param.length()-1 ) == '"' ) {
                param = param.substring( 0, param.length()-1 );
            }
            descr.addParameter(  "Object",  param );
        }
       
        descr.setBody( content.toString() );
       
        return descr;
    }
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        // only try to compile if there are no parse errors
        if ( !hasErrors() ) {
            if ( !packageDescr.getFunctions().isEmpty() ) {

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    if ( isEmpty( functionDescr.getNamespace() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setNamespace( packageDescr.getNamespace() );
                    }
                    if ( isEmpty( functionDescr.getDialect() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setDialect( pkgRegistry.getDialect() );
                    }
                    preCompileAddFunction( functionDescr );
                }

                // iterate and compile
                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    // inherit the dialect from the package
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    addFunction( functionDescr );
                }

                // We need to compile all the functions now, so scripting
                // languages like mvel can find them
                compileAll();

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    postCompileAddFunction( functionDescr );
                }
            }

            // iterate and compile
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            }

            if ( !packageDescr.getFunctions().isEmpty() ) {

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    if ( isEmpty( functionDescr.getNamespace() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setNamespace( packageDescr.getNamespace() );
                    }
                    if ( isEmpty( functionDescr.getDialect() ) ) {
                        // make sure namespace is set on components
                        functionDescr.setDialect( pkgRegistry.getDialect() );
                    }
                    preCompileAddFunction( functionDescr );
                }

                // iterate and compile
                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    // inherit the dialect from the package
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    addFunction( functionDescr );
                }

                // We need to compile all the functions now, so scripting
                // languages like mvel can find them
                compileAll();

                for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
                    FunctionDescr functionDescr = (FunctionDescr) it.next();
                    postCompileAddFunction( functionDescr );
                }
            }

            // iterate and compile
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        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );

        assertEqualsIgnoreWhitespace( "yourFunction(new String[3] {\"a\",\"b\",\"c\"});",
                                      (String) rule.getConsequence() );

        final FunctionDescr func = (FunctionDescr) pkg.getFunctions().get( 0 );

        assertEquals( "String[]",
                          func.getReturnType() );
        assertEquals( "args[]",
                          func.getParameterNames().get( 0 ) );
        assertEquals( "String",
                          func.getParameterTypes().get( 0 ) );
    }
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Related Classes of org.drools.lang.descr.FunctionDescr

  • org.drools.clips.FunctionHandlers
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.xml.rules.FunctionHandler
  • org.drools.compiler.xml.rules.XmlPackageReaderTest
  • org.drools.eclipse.editors.DescrUtil
  • org.drools.eclipse.view.rules.RulesView
  • org.drools.integrationtests.PackageBuilderThreadSafetyTest
  • org.drools.lang.api.FunctionDescrBuilderImpl
  • org.drools.lang.api.impl.FunctionDescrBuilderImpl
  • org.drools.lang.RuleParserTest
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