com.googlecode.jsonschema2pojo.rules.JsonSchemaRule Maven / Gradle / Ivy
/**
* Copyright © 2010-2011 Nokia
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.jsonschema2pojo.rules;
import com.fasterxml.jackson.databind.JsonNode;
import com.googlecode.jsonschema2pojo.Schema;
import com.sun.codemodel.JClassContainer;
import com.sun.codemodel.JType;
/**
* Applies a JSON schema.
*
* @see http://tools.ietf.org/html/draft-zyp-json-schema-03#section-5
*/
public class JsonSchemaRule implements SchemaRule {
private final RuleFactory ruleFactory;
protected JsonSchemaRule(RuleFactory ruleFactory) {
this.ruleFactory = ruleFactory;
}
/**
* Applies this schema rule to take the required code generation steps.
*
* At the root of a schema document this rule should be applied (schema
* documents contain a schema), but also in many places within the document.
* Each property of type "object" is itself defined by a schema, the items
* attribute of an array is a schema, the additionalProperties attribute of
* a schema is also a schema.
*
* Where the schema value is a $ref, the ref URI is assumed to be applicable
* as a URL (from which content will be read). Where the ref URI has been
* encountered before, the root Java type created by that schema will be
* re-used (generation steps won't be repeated).
*
* @param schema
* the schema within which this schema rule is being applied
*/
@Override
public JType apply(String nodeName, JsonNode schemaNode, JClassContainer generatableType, Schema schema) {
if (schemaNode.has("$ref")) {
schema = Schema.create(schema, schemaNode.get("$ref").asText());
schemaNode = schema.getContent();
if (schema.isGenerated()) {
return schema.getJavaType();
}
return apply(nodeName, schemaNode, generatableType, schema);
}
JType javaType;
if (schemaNode.has("enum")) {
javaType = ruleFactory.getEnumRule().apply(nodeName, schemaNode.get("enum"), generatableType, schema);
} else {
javaType = ruleFactory.getTypeRule().apply(nodeName, schemaNode, generatableType.getPackage(), schema);
}
schema.setJavaTypeIfEmpty(javaType);
return javaType;
}
}