I have json data :
[
{
"RouteNo": "004",
"RouteName": "POWELL/DOWNTOWN/UBC",
"Direction": "WEST",
"Schedules": [
{
"Destination": "UBC",
"ExpectedCountdown": -4,
},
{
"Destination": "Downtown",
"ExpectedCountdown": -6,
}
]
},
{
"RouteNo": "006",
"RouteName": "Grange str",
"Direction": "South",
"Schedules": [
{
"Destination": "Victoria",
"ExpectedCountdown": -9,
},
{
"Destination": "College station",
"ExpectedCountdown": -15,
}
]
}
]
And I have my model Route.java:
public class Route {
public String getRouteNo() {
return RouteNo;
}
public void setRouteNo(String routeNo) {
RouteNo = routeNo;
}
public String getRouteName() {
return RouteName;
}
public void setRouteName(String routeName) {
RouteName = routeName;
}
public Route(String routeNo, String routeName) {
RouteNo = routeNo;
RouteName = routeName;
}
private String RouteNo;
private String RouteName;
}
My question is how should I insert Schedules object you can see in json data into Route model? I am confused in terms of (as far as I understood) it is an object containing an array and I am not sure how to represent it in this case. And how actually get the data from it in retrofit call? I need to get each destination for each route.
Update Route to be:
public class Route {
public String getRouteNo() {
return RouteNo;
}
public void setRouteNo(String routeNo) {
RouteNo = routeNo;
}
public String getRouteName() {
return RouteName;
}
public void setRouteName(String routeName) {
RouteName = routeName;
}
public Route(String routeNo, String routeName) {
RouteNo = routeNo;
RouteName = routeName;
}
private String RouteNo;
private String RouteName;
private List<Schedule> schedules; // add mutators with #JsonProperty annotation
}
Then create the Schedule class as described by the above JSON
Related
I want to find the key value pair from a list. I want to put the values into a parameter from another method. I have a deserialzied map that contains the list called "InfoFields" here is my json string:
{
"operation": "get-id",
"payload": {
"ApplicationContext": {
"Context": "JORDFEIL",
"SenderId": "xxx",
"subContext": ""
},
"supportIssue": {
"InfoFields": [
{
"Key": "key1",
"Value": "value1"
},
{
"Key": "key2",
"Value": "value2"
},
{
"Key": "key3",
"Value": "value3"
}
],
}
},
"type": "~:CustomerInquiry",
}
Here is my wrapper class aswell
public class WebskjemaModel {
public class ApplicationContext {
public String Context;
public String SenderId;
public String subContext;
}
public String operation;
public Payload payload;
public String type;
public class InfoFields {
public String Key;
public String Value;
}
public class Payload {
public ApplicationContext ApplicationContext;
public SupportIssue supportIssue;
}
public class SupportIssue {
public List<InfoFields> InfoFields;
public String assignId;
public String businessObjectType;
public String comment;
public String contactDate;
public String contactName;
public String customerName;
public String customerNo;
public String docClass;
public String format;
public String objectDescription;
public String objectId;
public String subject;
}
public static WebskjemaModel parse(String json) {
return (WebskjemaModel) System.JSON.deserialize(json, WebskjemaModel.class);
}
}
I have created a map that contains the deserialzed object, now i want to map the fields for a single case. Here is what i have tried, but i cant seem to get the values from the key and from the value:
public with sharing class WebskjemaCaseCreator {
#TestVisible
private Map<Id, Case> cases { get; set; }
#TestVisible
private Map<Id, WebskjemaModel> webskjemaModels = new Map<Id, WebskjemaModel>();
public WebskjemaCaseCreator(Map<Id, Case> cases) {
this.cases = cases;
deserializeJson();
mapFields();
}
private void deserializeJson() {
for (Id caseId : cases.keySet()) {
Case c = cases.get(caseId);
WebskjemaModel model = WebskjemaModel.parse(c.Webskjemablob__c);
webskjemaModels.put(caseId, model);
}
}
private void mapFields() {
for (Id caseId : cases.keySet()) {
Case c = cases.get(caseId);
WebskjemaModel model = webskjemaModels.get(caseId);
}
}
private void mapFieldsForSingleCase(Case c, WebskjemaModel model) {
String context = model.payload.ApplicationContext.Context;
List<WebskjemaModel.InfoFields> myinfoFields = model.payload.supportIssue.InfoFields;
for (WebskjemaModel.InfoFields fields : myinfoFields) {
mapInfoField(c, context, fields.get(key), fields.get(value));
}
// TODO: Find WebskjemaModel inforfields and loop
// for (list of infofields for this model only){
// TODO: call method mapInfoField
// }
}
private void mapInfoField(Case c, String context, String infoFieldKey, String infoFieldValue) {
WebskjemaMapping__mdt[] webskjemarecords = [
SELECT CaseField__c, Context__c, JsonField__c, IfsField__c
FROM WebskjemaMapping__mdt
];
// TODO: Find Case field from custom meta data type mapping, based on context and infoFielfKey
// TODO: Put value from inforFieldValue into Case field
}
}
I have the following response structure.
{
"URL": "",
"sites": [
{
"details": "",
"details2": "",
"details3": [
{
"moreDetails": "",
"moreDetails2": "",
}
]
},
{
"details": "",
"details2": "",
"details3": [
{
"moreDetails": "",
"moreDetails2": "",
}
]
}
]
}
This is accomplished by having multiple models.
SitesResponse
Sites
Details
MoreDetails
All of them have getter and setters and I just set up the response in the controller. Is there a way to move ALL of the response to a parent object without rewriting the hierarchy?
For an example, something like this:
{
"results": {
"URL": "",
"sites": [
{
"details": "",
"details2": "",
"details3": [
{
"moreDetails": "",
"moreDetails2": ""
}
]
},
{
"details": "",
"details2": "",
"details3": [
{
"moreDetails": "",
"moreDetails2": ""
}
]
}
]
}
}
you have to put them inside another object as below :
Result Model :
#JsonInclude(JsonInclude.Include.NON_NULL)
#JsonPropertyOrder({
"URL",
"sites"
})
public class Results {
#JsonProperty("URL")
private String uRL;
#JsonProperty("sites")
private List < Site > sites = null;
#JsonProperty("URL")
public String getURL() {
return uRL;
}
#JsonProperty("URL")
public void setURL(String uRL) {
this.uRL = uRL;
}
#JsonProperty("sites")
public List < Site > getSites() {
return sites;
}
#JsonProperty("sites")
public void setSites(List < Site > sites) {
this.sites = sites;
}
}
Site Model:
#JsonInclude(JsonInclude.Include.NON_NULL)
#JsonPropertyOrder({
"details",
"details2",
"details3"
})
public class Site {
#JsonProperty("details")
private String details;
#JsonProperty("details2")
private String details2;
#JsonProperty("details3")
private List < Details3 > details3 = null;
#JsonProperty("details")
public String getDetails() {
return details;
}
#JsonProperty("details")
public void setDetails(String details) {
this.details = details;
}
#JsonProperty("details2")
public String getDetails2() {
return details2;
}
#JsonProperty("details2")
public void setDetails2(String details2) {
this.details2 = details2;
}
#JsonProperty("details3")
public List < Details3 > getDetails3() {
return details3;
}
#JsonProperty("details3")
public void setDetails3(List < Details3 > details3) {
this.details3 = details3;
}
Details Model :
#JsonInclude(JsonInclude.Include.NON_NULL)
#JsonPropertyOrder({
"moreDetails",
"moreDetails2"
})
public class Details3 {
#JsonProperty("moreDetails")
private String moreDetails;
#JsonProperty("moreDetails2")
private String moreDetails2;
#JsonProperty("moreDetails")
public String getMoreDetails() {
return moreDetails;
}
#JsonProperty("moreDetails")
public void setMoreDetails(String moreDetails) {
this.moreDetails = moreDetails;
}
#JsonProperty("moreDetails2")
public String getMoreDetails2() {
return moreDetails2;
}
#JsonProperty("moreDetails2")
public void setMoreDetails2(String moreDetails2) {
this.moreDetails2 = moreDetails2;
}
}
Holder Model:
#JsonInclude(JsonInclude.Include.NON_NULL)
#JsonPropertyOrder({
"results"
})
public class Holder {
#JsonProperty("results")
private Results results;
#JsonProperty("results")
public Results getResults() {
return results;
}
#JsonProperty("results")
public void setResults(Results results) {
this.results = results;
}
}
then you can pass the Holder Model as a response
I'm quite new to spring and I'm using spring entitymanager.createquery to make query and get the result from database.
So when make a http get this method executes to get all the patient name
public List<PatientModel> fetchallpatients (){
Query q = entityManager.createNativeQuery("select * from patient p ");
List <PatientModel> patientList=q.getResultList();
System.out.println(patientList);
return patientList;
}
it is returning
[[
1,
"patientname",
"patientphone",
"patientgender",
"patientinsurance",
"patientage",
"patientdiagnosis",
"patientaddreq",
"patientemr"
],
[
2,
"test",
"patientphone",
"patientgender",
"patientinsurance",
"patientage",
"patientdiagnosis",
"patientaddreq",
"patientemr"
],
[
3,
"react",
"12312",
"male",
"react",
"56",
"dsa",
"ads",
"das"
],
[
4,
"sign",
"asd",
"male",
"react",
"56",
"Diagnose 2",
"Ventilator",
"on"
],
[
5,
"good",
"3213",
"male",
"react",
"56",
"Diagnose 3",
"ICU",
"on"
] ]
Front end I'm using react and I need this data to be in JSON format.
I have a POJO class for corresponding table:
package io.login.model;
import java.io.Serializable;
public class PatientModel {
String patientname;
String patientage;
String patientgender;
String patientinsurance;
String patientphone;
String patientaddreq;
String patientemr;
public String getPatientname() {
return patientname;
}
public void setPatientname(String patientname) {
this.patientname = patientname;
}
public String getPatientage() {
return patientage;
}
public void setPatientage(String patientage) {
this.patientage = patientage;
}
public String getPatientgender() {
return patientgender;
}
public void setPatientgender(String patientgender) {
this.patientgender = patientgender;
}
public String getPatientinsurance() {
return patientinsurance;
}
public void setPatientinsurance(String patientinsurance) {
this.patientinsurance = patientinsurance;
}
public String getPatientphone() {
return patientphone;
}
public void setPatientphone(String patientphone) {
this.patientphone = patientphone;
}
public String getPatientdiagnosis() {
return patientdiagnosis;
}
public void setPatientdiagnosis(String patientdiagnosis) {
this.patientdiagnosis = patientdiagnosis;
}
public String getPatientaddreq() {
return patientaddreq;
}
public void setPatientaddreq(String patientaddreq) {
this.patientaddreq = patientaddreq;
}
public String getPatientemr() {
return patientemr;
}
public void setPatientemr(String patientemr) {
this.patientemr = patientemr;
}
String patientdiagnosis;
public PatientModel(String patientname, String patientage, String patientgender, String patientinsurance, String patientphone, String patientdiagnosis, String patientaddreq, String patientemr) {
this.patientname = patientname;
this.patientage = patientage;
this.patientgender = patientgender;
this.patientinsurance = patientinsurance;
this.patientphone = patientphone;
this.patientdiagnosis = patientdiagnosis;
this.patientaddreq = patientaddreq;
this.patientemr = patientemr;
}
}
But I need the result like
{ { "patientname":"xyz"
"patientphone":"xyz"
"patientinsurance":"xyz"
"patientgender":"xyz"
"patientdiagnosis":"xyz"
"patientaddreq":"xyz" ... so on
}
}
you are returning List<String[]> and expect it to be a JSON list of your POJO?
change your method to return what is expected, like:
#Transactional
public List<PatientModel> fetchallpatients () {
Query q = entityManager.createNativeQuery("select * from patient p ");
List <PatientModel> patientList = q.getResultList();
System.out.println(patientList);
return patientList;
}
I have this model object Courier :
public class Courier {
#SerializedName("data")
private List<User> data = null;
public Courier() {
}
public Courier(List<User> data) {
this.data = data;
}
public List<User> getData() {
return data;
}
public void setData(List<User> data) {
this.data = data;
}
}
I get this response from server:
{
"data": [
{
"id": 446,
"courier": {
"data": []
},
"title": "гром",
"description": "Логойский тракт 24 в России в начале следующей",
"departure": "ChIJPQKUckNv2UYRLr1NasgXZ08",
"arrival": "EkHQodC10YDQtdCx0YDRj9C90YvQuSDQv9C10YDQtdGD0LvQvtC6LCDQnNC-0YHQutCy0LAsINCg0L7RgdGB0LjRjw"
},
{
"id": 438,
"courier": {
"data": []
},
"title": "тест",
"description": "гппг лмш ш ш ш ш г У меня на сковородке стоит ли брать сва в кино мы все равно обсуждаем",
"departure": "ChIJH10nmDnP20YR-n7Kq6Whd5w",
"arrival": "Ej_QnNC-0YHQutCy0L7RgNC10YbQutCw0Y8g0YPQu9C40YbQsCwg0JzQvtGB0LrQstCwLCDQoNC-0YHRgdC40Y8"
},
{
"id": 439,
"courier": {
"data": []
},
"title": "лаьаьаат",
"description": "лала слат алс ал ала ал кща да аьад",
"departure": "ChIJH7D4cTnP20YRKlzSCnP6Mak",
"arrival": "Ej_QnNC-0YHQutCy0L7RgNC10YbQutCw0Y8g0YPQu9C40YbQsCwg0JzQvtGB0LrQstCwLCDQoNC-0YHRgdC40Y8"
},
{
"id": 442,
"courier": {
"data": {
"id": 122,
"email": null,
"phone": "73339999999",
"photo": null,
"rating": 0
}
},
"title": "картошечка",
"description": "Крупная сортированная",
"departure": "ChIJnZRv1jnP20YRWiezW55d1tA",
"arrival": "ChIJpfH6UJtp1EYRlhM20g-jzF4"
}
]
}
If object courier not have data, i get array "data": [], if object courier has data, i get object :
"courier": {
"data": {
"id": 122,
"email": null,
"phone": "73339999999",
"photo": null,
"rating": 0
}
}
And then I get error... Please give me advice how handle this case in android application...
is one of the most common mistakes when you start to use JSON with a client, for android please refer to this tutorial to understand
the best source to understand this kind of mistake is to read this post
a canonical SO post.
Is better to read it and understand it, that asking for a simple solution because you will go really often into this error.
while deserializing, Gson was expecting a JSON object, but found a
JSON array
A JSON Object is wrapped by a {
A JSON Array is wrapped by a [
What you need is to adapt your class Courier, to deserialize in the right way the JSON response.
take in mind that; a JSON array become deserialized in java as a Collection type or an array type;
PLEASE notice that is confusing to use two times data
on top of everything, the first data is
public class MyPojo
{
private Data[] data;
public Data[] getData ()
{
return data;
}
public void setData (Data[] data)
{
this.data = data;
}
#Override
public String toString()
{
return "ClassPojo [data = "+data+"]";
}
}
Data.class
public class Data
{
private String id;
private String title;
private String description;
private Courier courier;
private String arrival;
private String departure;
public String getId ()
{
return id;
}
public void setId (String id)
{
this.id = id;
}
public String getTitle ()
{
return title;
}
public void setTitle (String title)
{
this.title = title;
}
public String getDescription ()
{
return description;
}
public void setDescription (String description)
{
this.description = description;
}
public Courier getCourier ()
{
return courier;
}
public void setCourier (Courier courier)
{
this.courier = courier;
}
public String getArrival ()
{
return arrival;
}
public void setArrival (String arrival)
{
this.arrival = arrival;
}
public String getDeparture ()
{
return departure;
}
public void setDeparture (String departure)
{
this.departure = departure;
}
#Override
public String toString()
{
return "ClassPojo [id = "+id+", title = "+title+", description = "+description+", courier = "+courier+", arrival = "+arrival+", departure = "+departure+"]";
}
}
Courier.class
public class Courier
{
private String[] data;
public String[] getData ()
{
return data;
}
public void setData (String[] data)
{
this.data = data;
}
#Override
public String toString()
{
return "ClassPojo [data = "+data+"]";
}
}
I suggest you just to create a class Data with fields id, email, etc. And make field Data data in the class Courier instead of a List<> data
EDIT: then you can use a JsonDeserializer. Just remove #SerializedName("data") over the Data field, so that the Json will not parse this field. Then create a class:
public class CourierDeserializer implements JsonDeserializer<Courier> {
#Override
public Courier deserialize(final JsonElement json, final Type type,
final JsonDeserializationContext context) {
Courier result = new Gson().fromJson(json, Courier.class);
try {
if (json != null) {
result.setData((Data) context.deserialize(json, Data.class));
}
} catch (JsonParseException e) {
result.setData(null);
}
return result;
}
}
and finally register it where you create your GsonBuilder:
GsonBuilder gson = new GsonBuilder();
gson.registerTypeAdapter(Courier.class, new CourierDeserializer());
mGson = gson.create();
builder.setConverter(new GsonConverter(mGson));
if you use Retrofit.
I am parsing a JSON data using GSON library and the issue what I am facing is, a part of my json data keeps changing below is how my JSON data looks.
{
"body": [{
"result": [
{
"EndTime": "1411495899000",
"StartTime": "1411495360000"
},
{
"EndTime": "1411495359000",
"StartTime": "1411494784000"
}],
"rule": {
"ruleid": "73B5EEB4"
}
},
{
"result": [
{
"noOfErrors": "5",
"severity": "high"
},
{
"noOfErrors": "4",
"severity": "low"
}],
"rule": {
"ruleid": "35B5EEB4"
}
}
],
"header": {
"contentver": "5.5"
}
}
So in the above JSON data the result array content keeps changing based on the ruleid and I want to choose the java bean for result content at runtime based on the ruleid. Any idea?
-Regards
Well, this is going to be a long answer ...
You could use a custom JsonDeserializer to deserialize the variable part of the json string based on the ruleid.
public class MessageAdapter implements JsonDeserializer<Message> {
private Map<String, Class<? extends Result>> ruleToResultClassMap;
public MessageAdapter() {
this.ruleToResultClassMap = new HashMap<String, Class<? extends Result>>();
ruleToResultClassMap.put("73B5EEB4", DurationResults.class);
ruleToResultClassMap.put("35B5EEB4", ErrorResults.class);
}
#java.lang.Override
public Message deserialize(JsonElement json, java.lang.reflect.Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
JsonObject messageObject = json.getAsJsonObject();
JsonArray bodyArray = messageObject.getAsJsonArray("body");
List<Result> results = new ArrayList<Result>();
for (JsonElement bodyElement : bodyArray) {
JsonObject resultObject = bodyElement.getAsJsonObject();
JsonObject ruleObject = resultObject.getAsJsonObject("rule");
String ruleId = ruleObject.getAsJsonPrimitive("ruleid").getAsString();
Class<? extends Result> resultClass = ruleToResultClassMap.get(ruleId);
if (resultClass != null) {
Result result = context.deserialize(resultObject, resultClass);
results.add(result);
} else {
throw new IllegalArgumentException("Illegal ruleId: " + ruleId);
}
}
return new Message(results, context.<Header>deserialize(messageObject.getAsJsonObject("header"), Header.class));
}
}
You need to register the custom deserializer with GsonBuilder:
GsonBuilder gsonBuilder = new GsonBuilder();
gsonBuilder.registerTypeAdapter(Message.class, new MessageAdapter());
Gson gson = gsonBuilder.create();
String jsonString = null; // your json string
Message message = gson.fromJson(jsonString, Message.class);
Here Message is the root POJO of the json string, you probably have your own. For full reference, I include all classes here:
public class Message {
private List<? extends Result> body;
private Header header;
public Message(List<? extends Result> body, Header header) {
this.body = body;
this.header = header;
}
public List<? extends Result> getBody() {
return body;
}
public Header getHeader() {
return header;
}
}
public class Header {
private String contentver;
public Header(String contentVer) {
this.contentver = contentVer;
}
public String getContentVer() {
return contentver;
}
}
public interface Result {
public Rule getRule();
}
public final class Rule {
private String ruleid;
public String getRuleid() {
return ruleid;
}
}
public class DurationResults implements Result {
private Duration[] result;
private Rule rule;
public Duration[] getResult() {
return result;
}
#Override
public Rule getRule() {
return rule;
}
public static final class Duration {
private long EndTime;
private long StartTime;
public long getStartTime() {
return StartTime;
}
public long getEndTime() {
return EndTime;
}
}
}
public class ErrorResults implements Result {
private Error[] result;
private Rule rule;
public Error[] getResult() {
return result;
}
#Override
public Rule getRule() {
return rule;
}
public static final class Error {
private int noOfErrors;
private String severity;
public int getNoOfErrors() {
return noOfErrors;
}
public String getSeverity() {
return severity;
}
}
}
I think you have to parse your json if your result change.
Replace first "result" to "FirstResult" , and replace second "result" to "SecondResult".
Your json have to look like this:
{
"body": [{
"FirstResult": [
{
"EndTime": "1411495899000",
"StartTime": "1411495360000"
},
{
"EndTime": "1411495359000",
"StartTime": "1411494784000"
}],
"rule": {
"ruleid": "73B5EEB4"
}
},
{
"SecondResult": [
{
"noOfErrors": "5",
"severity": "high"
},
{
"noOfErrors": "4",
"severity": "low"
}],
"rule": {
"ruleid": "35B5EEB4"
}
}
],
"header": {
"contentver": "5.5"
}
}
And you can parse json to Java Objects. If you have first result parse to FirstResultObject.java , if you have second result parse to SecondResult.java
SecondResult.java
public class SecondResult
{
private String noOfErrors;
private String severity;
public String getNoOfErrors ()
{
return noOfErrors;
}
public void setNoOfErrors (String noOfErrors)
{
this.noOfErrors = noOfErrors;
}
public String getSeverity ()
{
return severity;
}
public void setSeverity (String severity)
{
this.severity = severity;
}
}
FirstResult.java
public class FirstResult
{
private String EndTime;
private String StartTime;
public String getEndTime ()
{
return EndTime;
}
public void setEndTime (String EndTime)
{
this.EndTime = EndTime;
}
public String getStartTime ()
{
return StartTime;
}
public void setStartTime (String StartTime)
{
this.StartTime = StartTime;
}
}