Access to property schema in custom Format?

[diversit]

I'm trying to validate json against our json schema.
The validate fails due to a property with "format": "time" not being a full-time value, but just the pattern HH:mm.

According to the spec for which the schema is created, the time value must be "HH:mm".

In the schema this is specified for that property in "customTimePattern": "HH:mm" and the schema also contains the "pattern": "([0-1][0-9]|2[0-3]):[0-5][0-9]".

Snippet of schema of property:

"start_time": {
  "type": "string",
  "minLength": 5,
  "maxLength": 5,
  "pattern": "([0-1][0-9]|2[0-3]):[0-5][0-9]",
  "format": "time",
  "customTimePattern": "HH:mm"
}

Using jsonschema2pojo this create a Java property with the correct type and can successfully be serialised and deserialised.

I'm looking at creating a custom Format implementation for time.
Is it somehow possible to get access to the schema of the property and be able to access the pattern and customTimePattern values? Then those values could be used in the Format implementation to not only validate the format, but also validate the value against the pattern.

[diversit]

I found a solution by creating a custom class CustomTimePatternFormat, extending TimeFormat, and implementing the Format method

public boolean matches(ExecutionContext executionContext, ValidationContext validationContext, JsonNode node,
                           JsonNode rootNode, JsonNodePath instanceLocation, boolean assertionsEnabled, FormatValidator formatValidator)

and using the formatValidator to get access to other properties of the schema via

formatValidator.getParentSchema().getNode("customTimePattern")

Since the JsonSchema.getNode method is protected, I had to place my custom class in the com.networknt.schema package.

Now my CustomTimePatternFormat class validates the value against the customTimePattern of the schema when this is available. Otherwise it falls back to the default validation of the TimeFormat class.