Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package com.google.constructor.cip.shiro.jpa; import com.google.constructor.cip.security.jpa.model.Role; import com.google.constructor.cip.security.jpa.model.User; import org.apache.shiro.authc.AuthenticationException; import org.apache.shiro.authc.AuthenticationInfo; import org.apache.shiro.authc.AuthenticationToken; import org.apache.shiro.authc.SimpleAuthenticationInfo; import org.apache.shiro.authc.UsernamePasswordToken; import org.apache.shiro.authz.AuthorizationInfo; import org.apache.shiro.authz.SimpleAuthorizationInfo; import org.apache.shiro.realm.AuthorizingRealm; import org.apache.shiro.subject.PrincipalCollection; public class ShiroJPARealm extends AuthorizingRealm { private IUserService userService; public ShiroJPARealm() { setName("ClickShiroRealm"); //This name must match the name in the User class's getPrincipals() method } protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException { UsernamePasswordToken token = (UsernamePasswordToken) authcToken; User user = userService.getUserByName(token.getUsername()); if (user != null) { return new SimpleAuthenticationInfo(user.getId(), user.getPassword(), getName()); } else { return null; } } protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { Long userId = (Long) principals.fromRealm(getName()).iterator().next(); User user = userService.find(userId); if (user != null) { SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); for (Role role : user.getRoles()) { info.addRole(role.getName()); info.addStringPermissions(role.getPermissions()); } return info; } else { return null; } } public IUserService getUserService() { return this.userService; } public void setUserService(IUserService userService) { this.userService = userService; } }