Examples of org.drools.compiler.commons.jci.compilers.JavaCompiler

Package org.drools.compiler.commons.jci.compilers

Examples of org.drools.compiler.commons.jci.compilers.JavaCompiler

org.drools.compiler.commons.jci.compilers.JavaCompiler
The general compiler interface. All compilers implementing this interface should read the resources from the reader and store the java class files into the ResourceStore. The actual compilation language does not matter. But the contract is that the result of the compilation will be a class file. If possible the compiler should notify the optional CompilationProblemHandler as soon as a problem is found.


    private void compileJavaClasses(JavaDialectConfiguration javaConf, ClassLoader classLoader, List<String> javaFiles, String rootFolder) {
        if ( !javaFiles.isEmpty() ) {
            String[] sourceFiles = javaFiles.toArray( new String[javaFiles.size()] );


            JavaCompiler javaCompiler = createCompiler( javaConf, rootFolder );
            CompilationResult res = javaCompiler.compile( sourceFiles,
                                                          srcMfs,
                                                          trgMfs,
                                                          classLoader );


            for ( CompilationProblem problem : res.getErrors() ) {

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            }
        }
    }


    private JavaCompiler createCompiler(JavaDialectConfiguration javaConf, String prefix) {
        JavaCompiler javaCompiler = JavaCompilerFactory.getInstance().loadCompiler( javaConf );
        if (javaCompiler instanceof EclipseJavaCompiler) {
            ((EclipseJavaCompiler)javaCompiler).setPrefix(prefix);
        }
        return javaCompiler;
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );


        KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        switch( javaConf.getCompiler() ) {
            case JavaDialectConfiguration.NATIVE : assertSame( NativeJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.ECLIPSE: assertSame( EclipseJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.JANINO: assertSame( JaninoJavaCompiler.class, compiler.getClass() );
                break;
            default:
                fail( "Unrecognized java compiler");
        }


        // test JANINO with property settings
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );


        KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        switch( javaConf.getCompiler() ) {
            case JavaDialectConfiguration.NATIVE : assertSame( NativeJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.ECLIPSE: assertSame( EclipseJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.JANINO: assertSame( JaninoJavaCompiler.class, compiler.getClass() );
                break;
            default:
                fail( "Unrecognized java compiler");
        }


        // test JANINO with property settings
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );


        PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        switch( javaConf.getCompiler() ) {
            case JavaDialectConfiguration.NATIVE : assertSame( NativeJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.ECLIPSE: assertSame( EclipseJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.JANINO: assertSame( JaninoJavaCompiler.class, compiler.getClass() );
                break;
            default:
                fail( "Unrecognized java compiler");
        }


        // test JANINO with property settings
        conf = new PackageBuilderConfiguration();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new PackageBuilder( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new PackageBuilderConfiguration();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new PackageBuilder( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );


        // test JANINO with property settings
        PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new PackageBuilder( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new PackageBuilderConfiguration();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new PackageBuilder( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );


        KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        switch( javaConf.getCompiler() ) {
            case JavaDialectConfiguration.NATIVE : assertSame( NativeJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.ECLIPSE: assertSame( EclipseJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.JANINO: assertSame( JaninoJavaCompiler.class, compiler.getClass() );
                break;
            default:
                fail( "Unrecognized java compiler");
        }


        // test JANINO with property settings
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );


        KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        switch( javaConf.getCompiler() ) {
            case JavaDialectConfiguration.NATIVE : assertSame( NativeJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.ECLIPSE: assertSame( EclipseJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.JANINO: assertSame( JaninoJavaCompiler.class, compiler.getClass() );
                break;
            default:
                fail( "Unrecognized java compiler");
        }


        // test JANINO with property settings
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );


        KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        switch( javaConf.getCompiler() ) {
            case JavaDialectConfiguration.NATIVE : assertSame( NativeJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.ECLIPSE: assertSame( EclipseJavaCompiler.class, compiler.getClass() );
                break;
            case JavaDialectConfiguration.JANINO: assertSame( JaninoJavaCompiler.class, compiler.getClass() );
                break;
            default:
                fail( "Unrecognized java compiler");
        }


        // test JANINO with property settings
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new KnowledgeBuilderConfigurationImpl();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new KnowledgeBuilderImpl( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        Dialect dialect = reg.getDialect( dialectName );


        final Field compilerField = dialect.getClass().getDeclaredField( "compiler" );
        compilerField.setAccessible( true );
        JavaCompiler compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );


        // test JANINO with property settings
        PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
        JavaDialectConfiguration javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.JANINO );
        builder = new PackageBuilder( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( JaninoJavaCompiler.class,
                    compiler.getClass() );


        // test eclipse jdt core with property settings and default source level
        conf = new PackageBuilderConfiguration();
        javaConf = (JavaDialectConfiguration) conf.getDialectConfiguration( "java" );
        javaConf.setCompiler( JavaDialectConfiguration.ECLIPSE );
        builder = new PackageBuilder( conf );
        builder.addPackage( pkgDescr );


        dialectName = (String) dialectField.get( builder );
        reg = builder.getPackageRegistry( pkgDescr.getName() ).getDialectCompiletimeRegistry();
        dialect = reg.getDialect( dialectName );
        compiler = (JavaCompiler) compilerField.get( dialect );
        assertSame( EclipseJavaCompiler.class,
                    compiler.getClass() );
    }

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Related Classes of org.drools.compiler.commons.jci.compilers.JavaCompiler

org.drools.compiler.builder.impl.KnowledgeBuilderTest

org.drools.compiler.compiler.PackageBuilderTest

org.drools.compiler.kie.builder.impl.KieBuilderImpl

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