package project.blockchain.internal;
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import java.io.File;
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import java.util.HashMap;
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import java.util.Map;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.client.j2se.MatrixToImageWriter;
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import com.google.zxing.common.BitMatrix;
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import kernel.util.UUIDGenerator;
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import project.Constants;
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import project.blockchain.QRProducerService;
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public class QRProducerServiceImpl implements QRProducerService {
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@Override
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public String generate(String content) {
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String image_name = "/qr/" + UUIDGenerator.getUUID() + ".png";
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String filepath = Constants.IMAGES_DIR + image_name;
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File file = new File(filepath);
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int width = 691;
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int height = 691;
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String format = "png";
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Map hints = new HashMap();
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hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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try {
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BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);
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MatrixToImageWriter.writeToFile(bitMatrix, format, file);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return image_name;
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}
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}
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