Recovering Original JSON Swagger Parse Result: A Technical Support Site Guide
When working with OpenAPI specifications, it is sometimes necessary to recover the original JSON Swagger Parse Result from deserialized objects. However, the OpenAPI V3 Parser does not provide a method to serialize the parse result back to its original form. In this article, we will discuss a workaround to this issue by making a deep copy of the Swagger Parse Result, which can then be converted back to JSON.
Understanding the Problem
The OpenAPI V3 Parser is a popular tool for working with OpenAPI specifications. It provides methods to deserialize an OpenAPI specification in JSON format into an object model that can be manipulated programmatically. However, the parser does not provide a method to serialize the object model back to its original JSON format. This can be a problem if you need to recover the original JSON specification from a deserialized object.
Making a Deep Copy of the Swagger Parse Result
To work around this issue, you can make a deep copy of the Swagger Parse Result object model. This will allow you to modify the copy without affecting the original object model. To make a deep copy of the Swagger Parse Result, you can use a library such as Apache Commons Lang or Jackson.
<pre>
import org.apache.commons.lang3.SerializationUtils;
// Deserialize the Swagger Parse Result
SwaggerParseResult swaggerParseResult = SwaggerParser.parse(specJson, SwaggerRelease.V3_0_2);
// Make a deep copy of the Swagger Parse Result
SwaggerParseResult deepCopy = SerializationUtils.clone(swaggerParseResult);
</pre>
Modifying the Deep Copy
Once you have made a deep copy of the Swagger Parse Result, you can modify it as needed. For example, you can add or remove operations, modify parameters, or change the security schema.
// Modify the deep copy
deepCopy.getApis().get(0).addOperation("get", new ApiOperation("Get Users"));
deepCopy.getPaths().get("/users").getGet().addParameter("page", new Parameter("page", "page", "query", "integer", false, null, 1));
deepCopy.getSecurityDefinitions().put("apiKey", new ApiKey("apiKey", "api_key", In.HEADER.toString()));
Converting the Deep Copy Back to JSON
After modifying the deep copy of the Swagger Parse Result, you can convert it back to JSON format using a library such as Jackson.
// Convert the deep copy back to JSON
ObjectMapper mapper = new ObjectMapper();
mapper.configure(SerializationFeature.INDENT_OUTPUT, true);
String modifiedJson = mapper.writeValueAsString(deepCopy);
In this article, we have discussed a workaround for recovering the original JSON Swagger Parse Result from a deserialized object. By making a deep copy of the Swagger Parse Result, you can modify the copy without affecting the original object model. After modifying the deep copy, you can convert it back to JSON format using a library such as Jackson.
References
- OpenAPI V3 Parser: https://github.com/OpenAPITools/openapi-generator
- Apache Commons Lang: https://commons.apache.org/proper/commons-lang/
- Jackson: https://github.com/FasterXML/jackson