RoleTag.java

package edu.gatech.oad.rocket.findmythings.server.util.tags;

import freemarker.core.Environment;
import freemarker.template.TemplateDirectiveBody;
import freemarker.template.TemplateException;

import java.io.IOException;
import java.util.Map;

/**
 * <p>Equivalent to {@link org.apache.shiro.web.tags.RoleTag}</p>
 */
@SuppressWarnings("rawtypes")
abstract class RoleTag extends SecureTag {
	String getName(Map params) {
		return getParam(params, "name");
	}

	@Override
	public void render(Environment env, Map params, TemplateDirectiveBody body) throws IOException, TemplateException {
		boolean show = showTagBody(getName(params));
		if (show) {
			renderBody(env, body);
		}
	}

	protected abstract boolean showTagBody(String roleName);
}