android - gson read same field with different structure -

note : can achieved creating 2 different gson models, i'm looking workaround.

i have model work multiple json responses. there response :

items: [ { kind: "youtube#playlistitem", etag: ""fpj9onby0rl_lqylg6rocj9h9n8/jqbctlu8tym8b1fxgo14gnzrfg4"", id: "pluq7i1jjqkb4ljargcpwsp62l7ic06ike2lde0bxle18", 

that conflict 1 (notice same id field different type. above id string, other class) :

items: [ { kind: "youtube#searchresult", etag: ""fpj9onby0rl_lqylg6rocj9h9n8/hdiu49vmd5aphkun5yz9gtljg9a"", id: { kind: "youtube#playlist", playlistid: "plh6xqivlqjsf3ynkvec1axub1dqwvgwfo" }, 

is possible use single gson model can read both responses?

thanks lot time

update

this inside model, changed id variable string class :

private id id; public class id {     private string id;     private string kind;     private string playlistid;      public string getid() {         return id;     }      public void setid(string id) {         this.id = id;     }      public string getkind() {         return kind;     }      public void setkind(string kind) {         this.kind = kind;     }      public string getplaylistid() {         return playlistid;     }      public void setplaylistid(string playlistid) {         this.playlistid = playlistid;     } } 

this how request :

        gsonbuilder gsonbuilder = new gsonbuilder();         gsonbuilder.registertypeadapter(response.class,                 new jsondeserializer<item.id>() {                     @override                     public item.id deserialize(jsonelement jsonelement, type type, jsondeserializationcontext jsondeserializationcontext) throws jsonparseexception {                                                     if(jsonelement.isjsonobject())                         {                             result.setkind(jsonelement.getasjsonobject().get("kind").getasstring());                             result.setplaylistid(jsonelement.getasjsonobject().get("playlistid").getasstring());                             //return new item.id(jsonelement.getasjsonobject().get("kind").getasstring(), jsonelement.getasjsonobject().get("playlistid").getasstring());                             return result;                         }                         else                         {                             result.setid(jsonelement.getasstring());                             //return new item.id(jsonelement.getasstring());                             return result;                         }                     }                 }); 

the problem

you can have id represent single type of variable, in case on first response you've got string, , on second case you've got object, has "kind" , "playlistid"

this seems weird design on backend side, isn't under control

solution

what can if think id in first, , second responses of same type create encapsulating class contain these fields like

class id {     private string stringid;     private string kind;     private string playlistid; } 

and create custom jsondeserializer based on type of json response create corresponding id object in following fashion:

new jsondeserializer<id>() {             @override             public id deserialize(jsonelement json, type typeoft, jsondeserializationcontext context) throws jsonparseexception {                 if(json.isjsonobject()) {                     return new id(json.getasjsonobject().get("kind").getasstring(), json.getasjsonobject().get("playlistid").getasstring());                 } else {                     return new id(json.getasstring());                 }             }         } 

and register on gson object, handle deserialization of id fields, , depending of type base creation

or create deserializer deserialize containing object , use different fields based on type of id, should idea!

you can register jsondeserializer on gson using gsonbuilder , in gsonbuilder calling registertypeadapter type you're registering type adapter on , typeadapter want use in following way:

return new gsonbuilder().registertypeadapter(id.class, new jsondeserializer<id>() {      //..  }).build(); 

you can read more custom typeadapters in gson documentation, here!