protected String generateGetter()

in src/main/java/org/apache/commons/ognl/enhance/ExpressionCompiler.java [575:646]
50 lines of code
16 McCabe index (conditional complexity)

    protected String generateGetter( OgnlContext context, CtClass newClass, CtClass objClass, ClassPool classPool,
                                     CtMethod valueGetter, Node expression, Object root )
        throws Exception
    {
        String pre = "";
        String post = "";
        String body;

        context.setRoot( root );

        // the ExpressionAccessor API has to reference the generic Object class for get/set operations, so this sets up
        // that known
        // type beforehand

        context.remove( PRE_CAST );

        // Recursively generate the java source code representation of the top level expression

        String getterCode = expression.toGetSourceString( context, root );

        if ( getterCode == null || getterCode.trim().isEmpty()
            && !ASTVarRef.class.isAssignableFrom( expression.getClass() ) )
        {
            getterCode = "null";
        }

        String castExpression = (String) context.get( PRE_CAST );

        if ( context.getCurrentType() == null || context.getCurrentType().isPrimitive()
            || Character.class.isAssignableFrom( context.getCurrentType() )
            || Object.class == context.getCurrentType() )
        {
            pre = pre + " ($w) (";
            post = post + ")";
        }

        String rootExpr = !"null".equals( getterCode ) ? getRootExpression( expression, root, context ) : "";

        String noRoot = (String) context.remove( "_noRoot" );
        if ( noRoot != null )
        {
            rootExpr = "";
        }

        createLocalReferences( context, classPool, newClass, objClass, valueGetter.getParameterTypes() );

        if ( expression instanceof OrderedReturn
            && ( (OrderedReturn) expression ).getLastExpression() != null )
        {
            body = "{ " + ( expression instanceof ASTMethod || expression instanceof ASTChain
                ? rootExpr
                : "" ) + ( castExpression != null ? castExpression : "" )
                + ( (OrderedReturn) expression ).getCoreExpression() + " return " + pre
                + ( (OrderedReturn) expression ).getLastExpression() + post + ";}";

        }
        else
        {

            body =
                "{  return " + pre + ( castExpression != null ? castExpression : "" ) + rootExpr + getterCode + post
                    + ";}";
        }

        body = body.replaceAll( "\\.\\.", "." );

        // System.out.println("Getter Body: ===================================\n" + body);
        valueGetter.setBody( body );
        newClass.addMethod( valueGetter );

        return body;
    }