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com.mntviews.upload.impl.PostgresUploadServiceImpl Maven / Gradle / Ivy

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package com.mntviews.upload.impl;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.json.JsonMapper;
import com.mntviews.upload.UploadService;
import com.mntviews.upload.model.ConnectionData;
import com.mntviews.upload.model.RecipientData;

import java.io.File;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.util.Properties;

public class PostgresUploadServiceImpl implements UploadService {
    @Override
    public void upload(ConnectionData connectionData, File file, String script) {

    }

    @Override
    public void uploadFile(ConnectionData connectionData, File file, String script) {
        ObjectMapper objectMapper = JsonMapper.builder()
                .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
                .build();

        try (FileInputStream fis = new FileInputStream(file)) {
            RecipientData recipientData = objectMapper.readValue(script, RecipientData.class);


            Properties props = new Properties();
            props.setProperty("user", connectionData.getUserName());
            props.setProperty("password", connectionData.getPassword());
            Connection connection = DriverManager.getConnection(connectionData.getUrl(), props);
            connection.setAutoCommit(false);


            try (PreparedStatement ps = connection.prepareStatement("INSERT INTO " + recipientData.getSchemaName()
                    + "." + recipientData.getTableName() + " (" + recipientData.getFieldName() + "," + recipientData.getSourceFileIdFieldName() + " ) VALUES (?, ?)")) {

                ps.setBinaryStream(1, fis, file.length());
                ps.setLong( 2, recipientData.getFileId());
                ps.executeUpdate();
                connection.commit();
            }

        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }
}




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