Java tutorial
/* * Copyright 2016 EPAM Systems * * * This file is part of EPAM Report Portal. * https://github.com/reportportal/service-api * * Report Portal is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Report Portal is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Report Portal. If not, see <http://www.gnu.org/licenses/>. */ package com.epam.ta.reportportal.ws.resolver; import java.util.Optional; import org.springframework.core.MethodParameter; import org.springframework.security.core.Authentication; import org.springframework.web.bind.support.WebArgumentResolver; import org.springframework.web.bind.support.WebDataBinderFactory; import org.springframework.web.context.request.NativeWebRequest; import org.springframework.web.method.support.HandlerMethodArgumentResolver; import org.springframework.web.method.support.ModelAndViewContainer; import com.epam.ta.reportportal.database.entity.user.UserRole; /** * {@link org.springframework.web.bind.support.WebArgumentResolver} for * ReportPortal User Roles. Will resolve {@link UserRole} in case if method * parameter annotated by {@link ActiveRole} annotation * * @author Andrei Varabyeu * */ public class ActiveUserWebArgumentResolver implements HandlerMethodArgumentResolver { /** * Returns TRUE if method argument is {@link UserRole} and annotated by * {@link ActiveRole} annotation */ @Override public boolean supportsParameter(MethodParameter methodParameter) { return methodParameter.getParameterType().equals(UserRole.class) && null != methodParameter.getParameterAnnotation(ActiveRole.class); } /* * (non-Javadoc) * * @see * org.springframework.web.method.support.HandlerMethodArgumentResolver# * resolveArgument(org.springframework.core.MethodParameter, * org.springframework.web.method.support.ModelAndViewContainer, * org.springframework.web.context.request.NativeWebRequest, * org.springframework.web.bind.support.WebDataBinderFactory) */ @Override public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer paramModelAndViewContainer, NativeWebRequest webRequest, WebDataBinderFactory paramWebDataBinderFactory) throws Exception { Authentication authentication = (Authentication) webRequest.getUserPrincipal(); if (!authentication.getAuthorities().isEmpty()) { Optional<UserRole> userRole = UserRole .findByAuthority(authentication.getAuthorities().iterator().next().getAuthority()); return userRole.isPresent() ? userRole.get() : WebArgumentResolver.UNRESOLVED; } return WebArgumentResolver.UNRESOLVED; } }