A better way to resolve ids.

[Sri Swayampakula]

Hi Everyone,

Thank you for the great library. I have an issue with resolving ids which are urls. The problem is that I am not hosting the json schema at that url specified by the Id (I am  treating it as URI with may not exist clause). For e.g.,

GPS.json 

{
    "id": "https://example.com/locator-api/1.0/default/GPS.json",
    "title": "GPS",
    "description": "Provides the longitude and latitude information",
    "type": "object",
    "properties": {
        "latitude": {
            "type": "integer",
            "description": "Provides the latitude information of a location"
        },
        "longitude": {
            "type": "integer",
            "description": "Provides the longitude information of a location"
        }
    },
    "required": [
        "latitude",
        "longitude"
    ]
}

and Landmark.json

{
    "id": "https://example.com/locator-api/1.0/default/Landmark.json",
    "title": "Landmark",
    "description": "Provides the landmark related information",
    "type": "object",
    "properties": {
        "id": {
            "type": "integer",
            "description": "Represents the identifier for the landmark"
        },
        "name": {
            "type": "string",
            "description": "Represents the name of the landmark"
        },
        "location": {
            "$ref": "https://example/locator-api/1.0/default/GPS.json",
            "description": "Represents the longitude and latitude information"
        }
    },
    "required": [
        "location",
        "name"
    ]
}

The problem is that resolver is trying to reach the url causing exceptions and to avoid that I've created custom schema source like this 

// defined additional properties likes this
private final String prefixURL = "https://example.com/locator-api/1.0/";
private final String prefixFileUrl = "file:///var/tmp/location_schema/";  // This is specified in source paths 


and overridden the method

public synchronized Schema create(URI id) {

   if (!schemas.containsKey(id)) {
      JsonNode content;

      if (id.toString().startsWith(prefixURL)) {
         URI fileId = null;
         try {
            fileId = new URI(id.toString().replace(prefixURL, prefixFileUrl));
         } catch (URISyntaxException e) {
            e.printStackTrace();
         }
         content = contentResolver.resolve(removeFragment(fileId));
      }

      else {
         content = contentResolver.resolve(removeFragment(id));
      }

      if (id.toString().contains("#")) {
         content = fragmentResolver.resolve(content, '#' + substringAfter(id.toString(), "#"));
      }

      schemas.put(id, new Schema(id, content));
   }

   return schemas.get(id);
}

I could easily solve the problem but I am not a great fan of the solution. I would like to know if there is any easy way to solve this.

Thanks,