com.wso2telco.aggregatorblacklist.dao.ProvisionDAO.java Source code

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Here is the source code for com.wso2telco.aggregatorblacklist.dao.ProvisionDAO.java

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/**
 * Copyright (c) 2016, WSO2.Telco Inc. (http://www.wso2telco.com) All Rights Reserved.
 *
 * WSO2.Telco Inc. licences 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.wso2telco.aggregatorblacklist.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.wso2telco.aggregatorblacklist.util.DatabaseTables;
import com.wso2telco.core.dbutils.DbUtils;
import com.wso2telco.core.dbutils.util.DataSourceNames;

public class ProvisionDAO {

    /** The Constant log. */
    private final Log log = LogFactory.getLog(ProvisionDAO.class);

    public boolean insertMerchantProvision(Integer appID, String subscriber, String operator, String[] merchants)
            throws SQLException, Exception {

        Connection con = null;
        ResultSet rs = null;
        PreparedStatement insertStatement = null;
        PreparedStatement selectStatement = null;

        try {

            con = DbUtils.getDbConnection(DataSourceNames.WSO2TELCO_DEP_DB);
            if (con == null) {

                throw new Exception("Connection not found");
            }

            /**
             * Set autocommit off to handle the transaction
             */
            con.setAutoCommit(false);

            StringBuilder selectQueryString = new StringBuilder(" SELECT id ");
            selectQueryString.append(" FROM ");
            selectQueryString.append(DatabaseTables.OPERATORS.getTableName());
            selectQueryString.append(" WHERE operatorname = '" + operator + "'");

            selectStatement = con.prepareStatement(selectQueryString.toString());
            rs = selectStatement.executeQuery();

            int operatorid = 0;
            if (rs.next()) {
                operatorid = rs.getInt("id");
            } else {
                throw new Exception("Operator Not Found");
            }

            for (int i = 0; i < merchants.length; i++) {
                StringBuilder insertQueryString = new StringBuilder("INSERT INTO ");
                insertQueryString.append(DatabaseTables.MERCHANTOPCO_BLACKLIST.getTableName());
                insertQueryString.append(" (application_id, operator_id, subscriber, merchant) ");
                insertQueryString.append("VALUES (?, ?, ?, ?)");

                insertStatement = con.prepareStatement(insertQueryString.toString());
                if (appID == null) {
                    insertStatement.setNull(1, Types.INTEGER);
                } else {
                    insertStatement.setInt(1, appID);
                }
                insertStatement.setInt(2, operatorid);
                insertStatement.setString(3, subscriber);
                insertStatement.setString(4, merchants[i]);
                insertStatement.executeUpdate();

                /**
                 * commit the transaction if all success
                 */
                con.commit();
            }

        } catch (SQLException e) {
            /**
             * rollback if Exception occurs
             */
            con.rollback();

            log.error("database operation error in Merachantopco Blacklist Entry : ", e);
            throw e;
        } catch (Exception e) {
            /**
             * rollback if Exception occurs
             */
            con.rollback();
            log.error("Error while Provisioning Merchant : ", e);

            throw e;
        } finally {
            DbUtils.closeAllConnections(selectStatement, con, rs);
            DbUtils.closeAllConnections(insertStatement, null, null);
        }
        return true;
    }

}