/**
* Validate the instance
*
* <p>Unlike all other validators:
*
* <ul>
* <li>this is the only one which will, if required, go over the net to grab new schemas;
* <li>this is the only one which can spawn a {@link ValidationContext} with a different root
* schema (if the ref represents an absolute {@link URI});
* <li>this is the only validator implementation which can spawn errors (ie, {@link
* ValidationReport#isError()} returns {@code true}) and not only failures.
* </ul>
*
* @return the report from the spawned validator
*/
@Override
public ValidationReport validate(final ValidationContext context, final JsonNode instance)
throws JsonValidationFailureException {
final ValidationReport report = context.createReport();
final String ref = context.getSchema().get(keyword).getTextValue();
final URI uri, baseURI;
final JsonPointer pointer;
try {
uri = new URI(ref);
baseURI = new URI(uri.getScheme(), uri.getSchemeSpecificPart(), null);
pointer = new JsonPointer(uri.getRawFragment());
} catch (URISyntaxException e) {
throw new RuntimeException(
"PROBLEM: invalid URI found (" + ref + "), syntax validation should have caught that", e);
}
final ValidationContext ctx;
try {
ctx = context.fromURI(baseURI);
} catch (IOException e) {
report.error(
String.format(
"cannot download schema at ref %s: %s: " + "%s",
ref, e.getClass().getName(), e.getMessage()));
return report;
} catch (IllegalArgumentException e) {
report.error(String.format("cannot use ref %s: %s", ref, e.getMessage()));
return report;
}
return ctx.getValidator(pointer, instance).validate(ctx, instance);
}
/**
* Validates JSON node against a JSON schema.
*
* @param json {@link JsonNode} to validate.
* @param schema {@link JsonNode} schema.
* @return {@link Validator}.
*/
public static Validator validateJson(JsonNode json, JsonNode schema) {
Validator res = new Validator();
JsonValidator validator;
try {
validator = new JsonValidator(schema);
ValidationReport report;
report = validator.validate(json);
int i = 0;
for (String s : report.getMessages()) {
res.addError("json_error_" + i, s);
i++;
}
} catch (JsonValidationFailureException e) {
res.addError("jsonerror", "Unable to validate json");
log.info(String.format("JsonUtils.validateJson(): Unable to validate json"));
}
return res;
}
@Override
public void validate(final ValidationReport report, final JsonNode instance) {
final JsonNode oldParent = report.getSchema();
report.setSchema(parent);
for (final KeywordValidator validator : validators)
validator.validateInstance(report, instance);
if (!(instance.isContainerNode() || report.isSuccess())) {
report.setSchema(oldParent);
return;
}
final JsonPointer ptr = report.getPath();
JsonPointer current;
if (instance.isArray()) {
JsonNode subSchema;
int i = 0;
for (final JsonNode element : instance) {
current = ptr.append(i);
report.setPath(current);
subSchema = arrayPath(i);
JsonSchema.fromNode(parent, subSchema).validate(report, element);
i++;
}
report.setSchema(oldParent);
report.setPath(ptr);
return;
}
// Can only be an object now
final Map<String, JsonNode> map = CollectionUtils.toMap(instance.fields());
String key;
JsonNode value;
for (final Map.Entry<String, JsonNode> entry : map.entrySet()) {
key = entry.getKey();
value = entry.getValue();
current = ptr.append(key);
report.setPath(current);
for (final JsonNode subSchema : objectPath(key))
JsonSchema.fromNode(parent, subSchema).validate(report, value);
}
report.setSchema(oldParent);
report.setPath(ptr);
}
