private boolean validateJsonConf() throws IOException, ProcessingException {
JsonNode schemaNode =
JsonLoader.fromFile(new File("src/main/resources/ConfigurationSchema.json"));
JsonSchemaFactory schemaFactory = JsonSchemaFactory.byDefault();
/*
Here we consume the original jsonConfigReader in the process of validation and recreate a Reader from JsonNode
then assign it back to the jsonConfigReader, if the validation succeed.
Can we improve this logic?
*/
if (schemaFactory.getSyntaxValidator().schemaIsValid(schemaNode)) {
JsonSchema jsonSchema = schemaFactory.getJsonSchema(schemaNode);
JsonNode topologyConfig = JsonLoader.fromReader(jsonConfigReader);
ProcessingReport report = jsonSchema.validate(topologyConfig);
if (report.isSuccess()) {
log.info("Validation succeeded... ");
log.info(report.toString());
jsonConfigReader =
new InputStreamReader(new ByteArrayInputStream(topologyConfig.toString().getBytes()));
return true;
} else {
log.error("Validation failed...");
log.error(report.toString());
throw new RuntimeException(
"Configuration file validation failed, Please recheck configuration file and try again");
}
} else {
log.error("Json configuration schema is not valid ");
log.error("Terminate the process .....");
throw new RuntimeException("Json Configuration schema is not valid");
}
}
public static void main(final String... args) throws IOException {
final JsonNode fstabSchema = loadResource("/fstab-inline.json");
final JsonNode good = loadResource("/fstab-good.json");
final JsonNode bad = loadResource("/fstab-bad.json");
final JsonNode bad2 = loadResource("/fstab-bad2.json");
final JsonSchemaFactory factory =
JsonSchemaFactory.builder().addressingMode(AddressingMode.INLINE).build();
final JsonSchema schema = factory.fromSchema(fstabSchema);
ValidationReport report;
report = schema.validate(good);
printReport(report);
report = schema.validate(bad);
printReport(report);
report = schema.validate(bad2);
printReport(report);
}