Common.app.QR.java Source code

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Here is the source code for Common.app.QR.java

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/*
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package Common.app;

import Controller.app.ConsultaController;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Map;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import com.itextpdf.text.BadElementException;
import com.itextpdf.text.Image;
import java.net.MalformedURLException;
import java.util.HashMap;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author HP
 */
public class QR {

    public static Image create(String content) {
        try {
            File file = File.createTempFile("QR_TEMP", ".PNG");
            try {
                String charset = "UTF-8"; // or "ISO-8859-1"
                Map hintMap = new HashMap();
                hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
                createQRCode(content, file.getAbsolutePath(), charset, hintMap, 200, 200);
            } catch (WriterException ex) {
                Logger.getLogger(ConsultaController.class.getName()).log(Level.INFO, null, ex);
            } catch (IOException ex) {
                Logger.getLogger(ConsultaController.class.getName()).log(Level.INFO, null, ex);
            }
            return Image.getInstance(file.getAbsolutePath());
        } catch (Exception ex) {
            Logger.getLogger(QR.class.getName()).log(Level.INFO, null, ex);
        }
        return null;
    }

    private static void createQRCode(String qrCodeData, String filePath, String charset, Map hintMap,
            int qrCodeheight, int qrCodewidth) throws WriterException, IOException {
        BitMatrix matrix = new MultiFormatWriter().encode(new String(qrCodeData.getBytes(charset), charset),
                BarcodeFormat.QR_CODE, qrCodewidth, qrCodeheight, hintMap);
        MatrixToImageWriter.writeToFile(matrix, filePath.substring(filePath.lastIndexOf('.') + 1),
                new File(filePath));
    }

    public static String readQRCode(String filePath, String charset, Map hintMap)
            throws FileNotFoundException, IOException, NotFoundException {
        BinaryBitmap binaryBitmap = new BinaryBitmap(
                new HybridBinarizer(new BufferedImageLuminanceSource(ImageIO.read(new FileInputStream(filePath)))));
        Result qrCodeResult = new MultiFormatReader().decode(binaryBitmap, hintMap);
        return qrCodeResult.getText();
    }

}