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/*
 * 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.arakelian.jdbc.store.strategy;

import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.apache.commons.lang3.StringUtils;

import com.arakelian.jdbc.conn.ConnectionFactory;
import com.arakelian.jdbc.utils.DatabaseUtils;
import com.arakelian.store.feature.HasId;
import com.arakelian.store.json.StoreObjectMapper;
import com.google.common.base.Preconditions;

public class SimpleJdbcStrategy extends AbstractJdbcStrategy {
    public SimpleJdbcStrategy(final StoreObjectMapper serializer) {
        super(serializer);
    }

    @Override
    public T get(final ResultSet rs) throws SQLException {
        final String json = StringUtils.defaultIfEmpty(rs.getString(1), "{}");
        try {
            final T bean = mapper.readValue(json);
            return bean;
        } catch (final IOException e) {
            throw new SQLException("Unable to deserialize record");
        }
    }

    @Override
    public String getInsertSql(final String table) {
        Preconditions.checkArgument(!StringUtils.isEmpty(table), "table must be non-empty");
        return "insert into " + table + "(id,document) values(?,?) on duplicate key update document=?";
    }

    @Override
    public String getSelectSql(final String table) {
        Preconditions.checkArgument(!StringUtils.isEmpty(table), "table must be non-empty");
        return "select document from " + table;
    }

    @Override
    public void put(final ConnectionFactory connectionFactory, final String insertSql, final T value)
            throws SQLException {
        String json;
        try {
            json = toString(value);
        } catch (final IOException e) {
            throw new SQLException("Unable to serialize value", e);
        }
        DatabaseUtils.executeUpdate(connectionFactory, insertSql, value.getId(), json);
    }
}