Subversion Repositories SmartDukaan

package com.spice.profitmandi.service;

import com.itextpdf.text.Document;

import com.itextpdf.text.pdf.PdfWriter;

import com.jcraft.jsch.*;

import com.spice.profitmandi.common.exception.ProfitMandiBusinessException;

import com.spice.profitmandi.common.web.client.RestClient;

import com.spice.profitmandi.dao.entity.transaction.Order;

import com.spice.profitmandi.dao.repository.fofo.PurchaseRepository;

import com.spice.profitmandi.dao.repository.transaction.OrderRepository;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.time.LocalDateTime;

import java.util.List;

import java.util.Properties;

@Service

public class PurchaseInvoiceService {

	@Autowired

	PurchaseRepository purchaseRepository;

	@Autowired

	OrderRepository orderRepository;

	@Autowired

	RestClient restClient;

	//private static final String remoteHost = "192.168.149.148";

	private static final String remoteHost = "support.shop2020.in";

	private static final String invoicepath = "/SaholicInvoices/";

	private static final String passowrd = "spic@2015support";

	public void getInvoices(String fofoId, String invoiceNumber, OutputStream outputStream)

			throws Exception {

		List<Order> orders = orderRepository.selectByInvoiceNumber(invoiceNumber);

		if (orders.size() == 0) {

			throw new ProfitMandiBusinessException("Invalid invoice Number", invoiceNumber, "Invalid invoice number");

		}

		LocalDateTime billingDate = orders.get(0).getBillingTimestamp();

		String invoicePath = String.format("%s%d-%d/%d/%s.pdf", invoicepath, billingDate.getYear(), billingDate.getMonth().getValue() - 1,

				fofoId, invoiceNumber);

		Session session = createSession("root", remoteHost, 22, passowrd);

		this.copyRemoteToLocal(session, invoicePath, outputStream);

		Document document = new Document();

		document.setMargins(0, 0, 25, 0);

		PdfWriter.getInstance(document, outputStream);

		document.open();

	}

	private Session createSession(String user, String host, int port, String password) {

		try {

			JSch jsch = new JSch();

			Properties config = new java.util.Properties();

			config.put("StrictHostKeyChecking", "no");

			Session session = jsch.getSession(user, host, port);

			session.setPassword(passowrd);

			session.setConfig(config);

			session.connect();

			return session;

		} catch (JSchException e) {

			System.out.println(e);

			return null;

		}

	}

	private void copyRemoteToLocal(Session session, String filePath, OutputStream outputStream)

			throws JSchException, IOException, SftpException {

		ChannelSftp sftp = (ChannelSftp) session.openChannel("sftp");

		// Once you've opened an sftp channel, there are methods to read a remote file

		// which let you access the file's content as an InputStream. You can convert

		// that to a Reader if you need to read line-by-line:

		/*Vector fileVector = sftp.l;

		fileVector.stream().forEach(x -> System.out.println(((LsEntry) x).getFilename()));*/

		// InputStream stream = sftp.get("/some/file");

		/*

		 * try { BufferedReader br = new BufferedReader(new InputStreamReader(stream));

		 * // read from br } finally { stream.close(); }

		 */

	}

	public static int checkAck(InputStream in) throws IOException {

		int b = in.read();

		// b may be 0 for success,

		// 1 for error,

		// 2 for fatal error,

		// -1

		if (b == 0)

			return b;

		if (b == -1)

			return b;

		if (b == 1 || b == 2) {

			StringBuffer sb = new StringBuffer();

			int c;

			do {

				c = in.read();

				sb.append((char) c);

			} while (c != '\n');

			if (b == 1) { // error

				System.out.print(sb.toString());

			}

			if (b == 2) { // fatal error

				System.out.print(sb.toString());

			}

		}

		return b;

	}

}