Parser does not handle reference in external file

[abhijith-prabhakar]

I am using swagger-codegen(v2.2.1) for java-jaxrs and my file structure is given below

|____static
| |____json-schema
| | |____error.json
| | |____error_details.json
| | |____link_description.json
| |____swagger.json

swagger.json is referring to error.json which in turn is referring to error_details.json and link_description.json.

In error.json if I provide reference "$ref":"error_details.json" swagger codegen cannot find error_details.json and is not working. But, if I provide reference as "$ref":"./json-schema/link_description.json" (relative to swagger.json) then codegen works fine, but swagger-ui breaks.

[diegode]

@abhijith-prabhakar does it work if you put "./error_details.json" instead of "error_details.json"?

[abhijith-prabhakar]

Yes, I have tried it. It gives below error

io.swagger:swagger-codegen-maven-plugin:2.2.1:generate failed: Unable to load RELATIVE ref: ./error_details.json
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
....
Caused by: java.lang.RuntimeException: Unable to load RELATIVE ref: ./error_details.json
        at io.swagger.parser.util.RefUtils.readExternalRef(RefUtils.java:140)
        at io.swagger.parser.ResolverCache.loadRef(ResolverCache.java:96)
        at io.swagger.parser.processors.ExternalRefProcessor.processRefToExternalDefinition(ExternalRefProcessor.java:30)
        at io.swagger.parser.processors.PropertyProcessor.processRefProperty(PropertyProcessor.java:33)
        at io.swagger.parser.processors.PropertyProcessor.processProperty(PropertyProcessor.java:21)
        at io.swagger.parser.processors.PropertyProcessor.processArrayProperty(PropertyProcessor.java:51)
        at io.swagger.parser.processors.PropertyProcessor.processProperty(PropertyProcessor.java:23)
        at io.swagger.parser.processors.ModelProcessor.processModelImpl(ModelProcessor.java:53)
        at io.swagger.parser.processors.ModelProcessor.processModel(ModelProcessor.java:39)
        at io.swagger.parser.processors.DefinitionsProcessor.processDefinitions(DefinitionsProcessor.java:40)
        at io.swagger.parser.SwaggerResolver.resolve(SwaggerResolver.java:41)
        at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:66)
        at io.swagger.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:390)
        at io.swagger.codegen.plugin.CodeGenMojo.execute(CodeGenMojo.java:276)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        ... 21 more

[diegode]

Oh, I think this was fixed in #284
This was merged to master after the last release (1.0.22).

[abhijith-prabhakar]

I worked with Ron and Tony to test out latest snapshot of both codegen and parser. It was not fixed in those as well. It would nice if someone can double check.

[diegode]

Oh, I think I understand why this is happening. This is a bug indeed.

[abhijith-prabhakar]

Thanks for checking. Any ETA on the fix?

[fehguy]

Should be fixed now.