private void resolveField()

in tapestry-framework/src/org/apache/tapestry/bean/FieldBeanInitializer.java [49:117]
52 lines of code
8 McCabe index (conditional complexity)

    private void resolveField(IResourceResolver resolver)
    {
        if (_fieldResolved)
            return;

        // This is all copied out of of FieldBinding!!

        int dotx = _fieldName.lastIndexOf('.');

        if (dotx < 0)
            throw new ApplicationRuntimeException(
                Tapestry.format("invalid-field-name", _fieldName));

        String className = _fieldName.substring(0, dotx);
        String simpleFieldName = _fieldName.substring(dotx + 1);

        // Simple class names are assumed to be in the java.lang package.

        if (className.indexOf('.') < 0)
            className = "java.lang." + className;

        Class targetClass = null;

        try
        {
            targetClass = resolver.findClass(className);
        }
        catch (Throwable t)
        {
            throw new ApplicationRuntimeException(
                Tapestry.format("unable-to-resolve-class", className),
                t);
        }

        Field field = null;

        try
        {
            field = targetClass.getField(simpleFieldName);
        }
        catch (NoSuchFieldException ex)
        {
            throw new ApplicationRuntimeException(
                Tapestry.format("field-not-defined", _fieldName),
                ex);
        }

        // Get the value of the field.  null means look for it as a static
        // variable.

        try
        {
            _fieldValue = field.get(null);
        }
        catch (IllegalAccessException ex)
        {
            throw new ApplicationRuntimeException(
                Tapestry.format("illegal-field-access", _fieldName),
                ex);
        }
        catch (NullPointerException ex)
        {
            throw new ApplicationRuntimeException(
                Tapestry.format("field-is-instance", _fieldName),
                ex);
        }

        _fieldResolved = true;
    }