<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.18.2</version>
</dependency>
</dependencies>Serializer will serialize the RawDataResult instance to a file named raw_data_result.json inside user's home directory under jackson directory.
public class Serializer {
public static void main(String[] args) {
RawDataResult rawDataResult = new RawDataResult();
Well[] wells = new Well[96];
for (int i = 0; i < 96; i++) {
AlleleType alleleType = (i % 2 == 0) ? AlleleType.HOMOZYGOUS : AlleleType.HETEROZYGOUS;
Well well = createWell(String.valueOf(i), alleleType);
wells[i] = well;
}
rawDataResult.setWellResults(wells);
System.out.println("RawDataResult :" + rawDataResult);
String userHome = System.getProperty("user.home");
// Define the file path in the ~/jackson directory
String filePath = userHome + File.separator + "jackson" + File.separator + "raw_data_result.json";
File dir = new File(userHome + File.separator + "jackson");
if (!dir.exists()) {
dir.mkdirs(); // Create the directory (and any necessary parent directories)
}
ObjectMapper objectMapper = new ObjectMapper();
// Serialize the object to JSON
try {
objectMapper.writeValue(new File(filePath), rawDataResult);
System.out.println("Serialized RawDataResult to " + filePath);
} catch (IOException e) {
System.err.println("Failed to serialize RawDataResult: " + e.getMessage());
}
}
private static Well createWell(String id, AlleleType alleleType) {
Well well = new Well();
well.setId(id);
well.setAlleleType(alleleType);
// Add 10 values to allele1 and allele2
double[] allele1 = new double[10];
double[] allele2 = new double[10];
for (int i = 0; i < 10; i++) {
allele1[i] = i * 0.9;
allele2[i] = i * 0.8;
}
well.setAllele1(allele1);
well.setAllele2(allele2);
return well;
}
}
Deserializer will deserialize the RawDataResult instance from a file named raw_data_result.json inside user's home directory under jackson directory.
public class Deserializer {
public static void main(String[] args) {
// Get the user's home directory and construct the file path
String userHome = System.getProperty("user.home");
String filePath = userHome + File.separator + "jackson" + File.separator + "raw_data_result.json";
RawDataResult rawDataResult = deserializeRawDataResult(filePath);
if (rawDataResult != null) {
System.out.println("Deserialized RawDataResult: " + rawDataResult);
}
}
// Method to deserialize RawDataResult from a file
private static RawDataResult deserializeRawDataResult(String filePath) {
ObjectMapper objectMapper = new ObjectMapper();
RawDataResult rawDataResult = null;
try (FileInputStream fis = new FileInputStream(filePath)) {
rawDataResult = objectMapper.readValue(fis, RawDataResult.class);
System.out.println("Successfully deserialized RawDataResult from " + filePath);
} catch (IOException e) {
System.err.println("Failed to deserialize RawDataResult: " + e.getMessage());
}
return rawDataResult;
}
}In protobuf-example project we serialized the same RawDataResult object to a binary file using Protobuf. For this particular case, the serialized file size is same, both by using Protobuf and Jackson Json. Usually the serialized, file size from protobuf is smaller than from its Json equivalent.
