/**
 * Copyright © 2016-2022 The Thingsboard 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 org.thingsboard.server.dao.sqlts.insert;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.support.TransactionTemplate;

import java.util.regex.Pattern;

@Repository
public abstract class AbstractInsertRepository {

    private static final ThreadLocal<Pattern> PATTERN_THREAD_LOCAL = ThreadLocal.withInitial(() -> Pattern.compile(String.valueOf(Character.MIN_VALUE)));
    private static final String EMPTY_STR = "";

    @Value("${sql.remove_null_chars:true}")
    private boolean removeNullChars;

    @Autowired
    protected JdbcTemplate jdbcTemplate;

    @Autowired
    protected TransactionTemplate transactionTemplate;

    protected String replaceNullChars(String strValue) {
        if (removeNullChars && strValue != null) {
            return PATTERN_THREAD_LOCAL.get().matcher(strValue).replaceAll(EMPTY_STR);
        }
        return strValue;
    }
}
