com.geotab.model.serialization.X509CertificateSerializer Maven / Gradle / Ivy
/*
*
* 2020 Copyright (C) Geotab Inc. All rights reserved.
*/
package com.geotab.model.serialization;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import java.io.IOException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;
import lombok.extern.slf4j.Slf4j;
@Slf4j
public class X509CertificateSerializer extends JsonSerializer {
@Override
public void serialize(X509Certificate x509Certificate, JsonGenerator jsonGenerator,
SerializerProvider serializerProvider) throws IOException {
if (x509Certificate == null) {
jsonGenerator.writeNull();
} else {
try {
jsonGenerator.writeString(byteArrayToHex(x509Certificate.getEncoded()));
} catch (CertificateEncodingException e) {
log.error("Can not serialize certificate", e);
jsonGenerator.writeNull();
}
}
}
private String byteArrayToHex(byte[] bytes) {
StringBuilder result = new StringBuilder(bytes.length * 2);
String hexAlphabet = "0123456789ABCDEF";
for (byte b : bytes) {
result
.append(hexAlphabet.charAt((b & 0xFF) >> 4))
.append(hexAlphabet.charAt(b & 0xF));
}
return result.toString();
}
}