Java tutorial
/* * Copyright 2002-2014 the original author or authors. * * Licensed 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 opensnap.security; import opensnap.domain.User; import org.springframework.security.core.GrantedAuthority; import org.springframework.security.core.authority.SimpleGrantedAuthority; import org.springframework.security.core.userdetails.UserDetails; import java.security.Principal; import java.util.Collection; import java.util.stream.Collectors; public class UserAdapter implements UserDetails, Principal { private User user; public UserAdapter(User user) { this.user = user; } @Override public Collection<? extends GrantedAuthority> getAuthorities() { return this.user.getRoles().stream().map((r -> new SimpleGrantedAuthority(r))).collect(Collectors.toList()); } @Override public String getPassword() { return this.user.getPassword(); } @Override public String getUsername() { return this.user.getUsername(); } @Override public boolean isAccountNonExpired() { return true; } @Override public boolean isAccountNonLocked() { return true; } @Override public boolean isCredentialsNonExpired() { return true; } @Override public boolean isEnabled() { return true; } @Override public String getName() { return this.user.getUsername(); } }