Java tutorial
/* * Copyright (c) 2016 Prasenjit Purohit * * 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 net.prasenjit.auth.service; import net.prasenjit.auth.domain.Client; import net.prasenjit.auth.domain.User; import net.prasenjit.auth.repository.ClientRepository; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.security.core.context.SecurityContextHolder; import org.springframework.security.oauth2.provider.ClientDetailsService; import org.springframework.security.oauth2.provider.ClientRegistrationException; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import org.springframework.util.StringUtils; import java.util.UUID; /** * Created by PRASENJIT-NET on 4/4/2016. * * @author PRASEN * @version $Id: $Id */ @Service public class ClientService implements ClientDetailsService { @Autowired private ClientRepository clientRepository; /** * {@inheritDoc} */ @Override @Transactional(readOnly = true) public Client loadClientByClientId(String clientId) throws ClientRegistrationException { Client client = clientRepository.findOne(clientId); if (client == null) { throw new ClientRegistrationException("Client '" + clientId + "' not found"); } return client; } /** * <p>save.</p> * * @param client a {@link net.prasenjit.auth.domain.Client} object. * @return a {@link net.prasenjit.auth.domain.Client} object. */ @Transactional public Client save(Client client) { if (!StringUtils.hasText(client.getClientId())) { client.setClientId(UUID.randomUUID().toString()); client.setClientSecret(UUID.randomUUID().toString()); } User user = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal(); client.setUser(user); return clientRepository.save(client); } }