Jackson Json whose name belongs to JsonNode
I have a scheme like this:
{
"type" : "object",
"$schema" : "http://json-schema.org/draft-03/schema#",
"id" : "urn:jsonschema:com:vlashel:dto:UserDto",
"description" : "this is the top description",
"title" : "this is the top title",
"properties" : {
"number" : {
"type" : "integer"
"required" : true
},
"password" : {
"type" : "string"
"required" : true
}
}
I have the following code that converts this shcema 3 project to draft 4 by removing the "required", I want to collect the property names of the nodes that have "requred" in them. How should I do it? I don't see any methods for this.
JsonNode jsonNode = jsonNodeIterator.next();
ObjectNode element;
if (jsonNode instanceof ObjectNode) {
element = (ObjectNode) jsonNode;
element.remove("required");
String propertyName = element.getPropertyName(); //I'm looking for this kind of method.
Thank!
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You can get all the nodes that have this property using List<JsonNode> findParents(String fieldName)
what does it for you. From the docs:
The search method for the JSON object that contains the specified field is within node or its descendants If a matching node or its descendants are found in this field, returns null.
I made a quick example, but I had to add some characters to the JSON sign you posted as it is missing some commas and parentheses and cannot be read by the ObjectMapper. It is so simple:
JsonNode root = mapper.readTree(SCHEMA);
List<JsonNode> required = root.findParents("required");
for (JsonNode node: required) {
Object prettyOutput = mapper.readValue(node, Object.class);
System.out.println(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(prettyOutput));
}
Output:
{
"type" : "integer",
"required" : true
}
{
"type" : "string",
"required" : true
}
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