com.formkiq.server.dao.ClientDaoImpl Maven / Gradle / Ivy

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Server-side integration for the FormKiQ ios application
There is a newer version: 0.6.1
/*
 * Copyright (C) 2016 FormKiQ Inc.
 *
 * 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 com.formkiq.server.dao;

import java.io.IOException;
import java.util.List;

import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.transform.AliasToBeanResultTransformer;
import org.hibernate.type.IntegerType;
import org.springframework.stereotype.Repository;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.formkiq.server.domain.User;
import com.formkiq.server.domain.type.ClientDTO;
import com.formkiq.server.domain.type.ClientListDTO;
import com.formkiq.server.util.Strings;

/**
 * Implementation of the Client Dao.
 *
 */
@Repository
public class ClientDaoImpl extends AbstractDaoImpl implements ClientDao {

    /** ObjectMapper. */
    private ObjectMapper mapper = new ObjectMapper();

    /**
     * default constructor.
     */
    public ClientDaoImpl() {
    }

    @Override
    public int clientCount() {
        String sql = "select count(*) as count from oauth_client_details";
        Session session = getEntityManager().unwrap(Session.class);

        Integer count = (Integer) session.createSQLQuery(sql)
                .addScalar("count", IntegerType.INSTANCE)
                .uniqueResult();
        return count.intValue();
    }

    @Override
    public ClientDTO findClient(final User user, final String client) {

        String sql = "select fl.client_id as client, "
                + " additional_information as clientname "
                + " from oauth_client_details fl "
                + " where fl.client_id=:client";

        Session session = getEntityManager().unwrap(Session.class);
        SQLQuery query = session.createSQLQuery(sql.toString());

        ClientDTO dto = (ClientDTO) query
                .setString("client", client)
                .setResultTransformer(
                        new AliasToBeanResultTransformer(ClientDTO.class))
                .uniqueResult();

        if (dto != null) {
            dto.setClientname(getClientnameFromString(dto.getClientname()));
        }

        return dto;
    }

    @SuppressWarnings("unchecked")
    @Override
    public ClientListDTO findClients(final String token) {

        int offset = Strings.getOffset(token);
        int max = Strings.getMaxResults(token, DEFAULT_MAX_RESULTS);

        StringBuilder sql = new StringBuilder(
                "select u.client_id as client, "
                + "u.additional_information as clientname "
                + " from oauth_client_details u order by clientname");

        sql.append(" OFFSET " + offset + " FETCH FIRST " + (max + 1)
                + " ROWS ONLY");

        Session session = getEntityManager().unwrap(Session.class);
        List list = session.createSQLQuery(sql.toString())
                .setResultTransformer(
                        new AliasToBeanResultTransformer(ClientDTO.class))
                .list();

        ClientListDTO dto = new ClientListDTO();

        List truncated = updatePagination(dto, offset, max, list);
        dto.setClients(truncated);

        for (ClientDTO cdto : truncated) {
            cdto.setClientname(getClientnameFromString(cdto.getClientname()));
        }

        return dto;
    }

    @Override
    public String getClientnameFromString(final String s) {
        try {
            JsonNode n = this.mapper.readValue(s, JsonNode.class);
            return n.get(ClientDao.CLIENT_NAME).asText();
        } catch (IOException e) {
            return s;
        }
    }
}