Java 类org.springframework.web.servlet.view.velocity.VelocityLayoutView 实例源码

@Override
protected AbstractUrlBasedView buildView(final String viewName) throws Exception {
    if (logger.isDebugEnabled()) {
        logger.debug("Building view using multiple layout resolver. View name is {}", viewName);
    }

    VelocityLayoutView view = (VelocityLayoutView) super.buildView(viewName);
    if (layoutKey != null) {
        view.setLayoutKey(layoutKey);
    }

    if (screenContentKey != null) {
        view.setScreenContentKey(screenContentKey);
    }

    if (!this.mappings.isEmpty()) {
        for (Map.Entry<String, String> entry : this.mappings.entrySet()) {
            // Correct wildcards so that we can use the matches method in the String object
            String mappingRegexp = StringUtils.replace(entry.getKey(), "*", ".*");
            // If the view matches the regexp mapping
            if (viewName.matches(mappingRegexp)) {
                if (logger.isDebugEnabled()) {
                    logger.debug(" Found matching view. Setting layout url to {}", entry.getValue());
                }

                view.setLayoutUrl(entry.getValue());
                return view;
            }
        }
    }

    return view;
}

@Override
protected Class<?> requiredViewClass() {
    return VelocityLayoutView.class;
}