swagger-api / swagger-api/swagger-parser
Enum parsing failure
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Description
swagger-core version: 1.5.24
jackson version: 2.9.7
swagger-parser version: 1.0.44
During parsing getting an exception:
java.lang.ClassCastException: com.fasterxml.jackson.databind.node.TextNode cannot be cast to com.fasterxml.jackson.databind.node.ArrayNode
at io.swagger.util.PropertyDeserializer.getEnum(PropertyDeserializer.java:72)
at io.swagger.util.PropertyDeserializer.argsFromNode(PropertyDeserializer.java:181)
at io.swagger.util.PropertyDeserializer.propertyFromNode(PropertyDeserializer.java:330)
at io.swagger.util.PropertyDeserializer.deserialize(PropertyDeserializer.java:138)
at io.swagger.util.PropertyDeserializer.deserialize(PropertyDeserializer.java:40)
at com.fasterxml.jackson.databind.ObjectMapper._convert(ObjectMapper.java:3600)
at com.fasterxml.jackson.databind.ObjectMapper.convertValue(ObjectMapper.java:3524)
at io.swagger.parser.util.SwaggerDeserializer.property(SwaggerDeserializer.java:1073)
at io.swagger.parser.util.SwaggerDeserializer.definition(SwaggerDeserializer.java:907)
at io.swagger.parser.util.SwaggerDeserializer.definitions(SwaggerDeserializer.java:746)
at io.swagger.parser.util.SwaggerDeserializer.parseRoot(SwaggerDeserializer.java:115)
at io.swagger.parser.util.SwaggerDeserializer.deserialize(SwaggerDeserializer.java:41)
at io.swagger.parser.Swagger20Parser.convertToSwagger(Swagger20Parser.java:140)
at io.swagger.parser.Swagger20Parser.parse(Swagger20Parser.java:156)
at io.swagger.parser.SwaggerParser.parse(SwaggerParser.java:135)
at io.swagger.parser.SwaggerParser.parse(SwaggerParser.java:129)
I've tried to upgrade versions as follows:
swagger-core version: 1.6.0
jackson version: 2.10.2
swagger-parser version: 1.0.49
but gets the same issue.
API:
swagger: '2.0'
info:
version: 1.1.2
title: API
produces:
- application/json
paths:
/devices:
head:
description: Get the total number of Device Types.
parameters:
- name: status
in: query
description: Device Type status filter.
type: string
enum: &DeviceStatus-enum
- ACTIVE
- ARCHIVED
responses:
204:
description: OK - Successful response
headers:
X-Total-Count:
type: integer
get:
description: Get a list of supported Device Types.
parameters:
- name: status
in: query
description: Device Type status filter.
type: string
enum: *DeviceStatus-enum
responses:
200:
description: Successful response
headers:
X-Total-Count:
type: integer
description: Total count of filtered Device Types without offset and limit parameters applied
schema:
type: array
items:
$ref: '#/definitions/DEVICE'
definitions:
DEVICE:
type: object
properties:
name:
type: string
description: Device model name
status:
type: string
enum: *DeviceStatus-enum
description: Device status
default: ACTIVE
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at io.swagger.util.PropertyDeserializer.getEnum(PropertyDeserializer.java:72) and reproduce the failure with the supplied Swagger 2.0 YAML, including the aliased enum values. Trace the node type passed through SwaggerDeserializer and confirm the parser handles this input without the ClassCastException; add or update a regression test if the repository’s test location is identified.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- api
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100