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Write arrayList< model class> into txt file using BufferedWriter

I'm trying to get the data from the arrayBundlePack after getting data from enqueue call, I'm trying to use BufferedWriter to the saved data in the arrayBundlePack & write in the txt file, but it just won't get the output I wanted.
I'm not sure if that's the way to output an arrayList model class.
Here's the code
private ArrayList<BundlePack> arrayBundlePack;
Call<BundlePackRepo> call = .............. // api content
call.enqueue(new Callback<BundlePackRepo>() {
#Override
public void onResponse(Call<BundlePackRepo> call, retrofit2.Response<BundlePackRepo> response) {
if (response.isSuccessful()) {
BundlePackRepo repos = response.body();
BundlePackRepo.bundlepacks[] bundlePacksarray;
bundlePacksarray = repos.getBundlePacks();
BundlePack bundlePack;
for (int a = 0; a < bundlePacksarray.length; a++) {
bundlePack = new BundlePack();
bundlePack.setPromotion_kit(bundlePacksarray[a].getPromotion_kit());
bundlePack.setStock_code(bundlePacksarray[a].getStock_code());
bundlePack.setIssue_ref(bundlePacksarray[a].getIssue_ref());
bundlePack.setQuantity(bundlePacksarray[a].getQuantity());
String sysMod = bundlePacksarray[a].getSys_mod();
String modifyDate = bundlePacksarray[a].getModify_dt();
try {
bundlePack.setSys_mod(df.parse(sysMod));
bundlePack.setModify_dt(df.parse(modifyDate));
} catch (java.text.ParseException e) {
e.printStackTrace();
}
bundlePack.setStatus(bundlePacksarray[a].getStatus());
arrayBundlePack.add(bundlePack);
//Trying to put out the data to text file
String filename = "bundlepack.txt";
File txtData = new File(getApplicationContext().getFilesDir(), filename);
FileWriter txtWriter = null;
try {
txtWriter = new FileWriter(txtData);
BufferedWriter fileWriter = new BufferedWriter(txtWriter);
for (BundlePack bdpack : arrayBundlePack) {
fileWriter.write(bdpack.toString());
fileWriter.newLine();
fileWriter.flush();
}
} catch (IOException e) {
e.printStackTrace();
}
}
BundlePack
#Entity
public class BundlePack{
#PrimaryKey(autoGenerate = true)
private int id;
#ColumnInfo(name = "promotion_kit")
private String promotion_kit;
#ColumnInfo(name = "stock_code")
private String stock_code;
#ColumnInfo(name = "issue_ref")
private String issue_ref;
#ColumnInfo(name = "quantity")
private Integer quantity;
#TypeConverters(DateConverter.class)
#ColumnInfo(name = "sys_mod")
private Date sys_mod;
#TypeConverters(DateConverter.class)
#ColumnInfo(name = "modify_dt")
private Date modify_dt;
#ColumnInfo(name = "status")
private String status;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getPromotion_kit() {
return promotion_kit;
}
public void setPromotion_kit(String promotion_kit) {
this.promotion_kit = promotion_kit;
}
public String getStock_code() {
return stock_code;
}
public void setStock_code(String stock_code) {
this.stock_code = stock_code;
}
public String getIssue_ref() {
return issue_ref;
}
public void setIssue_ref(String issue_ref) {
this.issue_ref = issue_ref;
}
public Integer getQuantity() {
return quantity;
}
public void setQuantity(Integer quantity) {
this.quantity = quantity;
}
public Date getSys_mod() {
return sys_mod;
}
public void setSys_mod(Date sys_mod) {
this.sys_mod = sys_mod;
}
public Date getModify_dt() {
return modify_dt;
}
public void setModify_dt(Date modify_dt) {
this.modify_dt = modify_dt;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
#Override
public String toString() {
return "BundlePack{" +
"id=" + id +
", promotion_kit='" + promotion_kit + '\'' +
", stock_code='" + stock_code + '\'' +
", issue_ref='" + issue_ref + '\'' +
", quantity=" + quantity +
", sys_mod=" + sys_mod +
", modify_dt=" + modify_dt +
", status='" + status + '\'' +
'}';
}
}
BundlePackRepo
public class BundlePackRepo {
private String count;
private bundlepacks[] bundlepacks;
public String getCount() {
return count;
}
public void setCount(String count) {
this.count = count;
}
public bundlepacks[] getBundlePacks() {
return bundlepacks;
}
public void setBundlePacks(bundlepacks[] bundlePacks) {
this.bundlepacks = bundlePacks;
}
public static class bundlepacks {
#SerializedName("promotionkit")
private String promotion_kit;
#SerializedName("stock_code")
private String stock_code;
#SerializedName("iss_ref")
private String issue_ref;
#SerializedName("qty")
private int quantity;
#SerializedName("sys_mod")
private String sys_mod;
#SerializedName("modify_dt")
private String modify_dt;
#SerializedName("status")
private String status;
#SerializedName("id")
private String id;
public String getPromotion_kit() {
return promotion_kit;
}
public void setPromotion_kit(String promotion_kit) {
this.promotion_kit = promotion_kit;
}
public String getStock_code() {
return stock_code;
}
public void setStock_code(String stock_code) {
this.stock_code = stock_code;
}
public String getIssue_ref() {
return issue_ref;
}
public void setIssue_ref(String issue_ref) {
this.issue_ref = issue_ref;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
public String getSys_mod() {
return sys_mod;
}
public void setSys_mod(String sys_mod) {
this.sys_mod = sys_mod;
}
public String getModify_dt() {
return modify_dt;
}
public void setModify_dt(String modify_dt) {
this.modify_dt = modify_dt;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
}
}

You are calling toString() to convert each bundlepack instance to a string for output. So you need to an override for toString to the bundlepack class. It needs to format the instance in the form that you need for your purposes.
Since you currently haven't overridden that method, your code is currently calling Object.toString() ... which only outputs the object's class name and hashcode.
Your IDE may well have a helper to generate a toString for a class, based on the fields of the class.

how to get the specific value of JSON response from JAX-RS ?

I am using JAX-RS with jersey 1.6 to consume the API. i have so far been able to consume it but now i need some specific values only.
how i am consuming api:-
ClientResponse ebpResonse = ebpResource.type("application/json")
.header(HttpHeaders.AUTHORIZATION, token)
.post(ClientResponse.class, ebpReq1);
System.out.println("ebp response is: " + ebpResonse.getEntity(String.class));
i receive response which looks like this:-
{
"code": "2075-4673",
"data": {
"requestId": 4673,
"requestCode": "2075-4673",
"fiscalYear": {
"fiscalYearId": 2075,
"fiscalYearCode": "2075/76"
},
"requestDate": 1531851300000,
"requestNdate": "2075/04/02",
"rcAgency": {
"id": 2373,
"code": "210003501",
"rcAgencyEDesc": "ABC",
"rcAgencyNDesc": " सेवा ",
"nepaliName": " सेवा",
"engishName": null
},
"status": 1,
"pan": "500127108",
"payerCode": null,
"payerEdesc": "ABC Enterprises",
"payerNdesc": null,
"payerAddress": null,
"payerPhone": null,
"totalAmount": 14000,
"createdBy": "psctest",
"createdOn": 1531851300000,
"collectedBank": null,
"collectedDate": null,
"collectedBy": null,
"token": "xxxxxxxxxxxxxxxx",
"details": [
{
"ebpNo": "4977",
"sno": 1,
"depositSlipNo": null,
"purpose": null,
"revenueHead": {
"id": 14224,
"code": "14224",
"oldCode": "14224",
"nepaliName": "शुल्क",
"englishName": "शुल्क",
"description": "शुल्क",
"nepaliDescription": "शुल्क",
"preRevenueHeadId": 0,
"status": true,
"federal": true,
"state": true,
"local": true,
"remarks": "xxxxx"
},
"remarks": "remarks",
"description": "Production",
"currency": {
"currencyId": 524,
"currencyCode": "524",
"descEnglish": "NRS",
"descNepali": "NRS"
},
"amount": 14000,
"taxAdv": false,
"taxyearId": 2074,
"dueAmount": 14000,
"createdBy": "psctest",
"createdOn": 1531894162000
}
]
},
"message": "Voucher has saved sucessfully.",
"token": "xxxxxxxxxxxxxxxxxxxx",
"status": 0
}
this response for me contains too many unnecessary information too. i need to get epbNo, token, pan in some separate variable. how can i achieve it ?

Here you go
1- Json Abstract class
package test;
import com.google.gson.Gson;
public abstract class JsonObject {
#Override
public String toString() {
Gson gson = new Gson();
return gson.toJson(this);
}
public Object toObject(String json){
Gson gson = new Gson();
return gson.fromJson(json, this.getClass());
}
}
2- Detail class
package test;
public class Detail extends JsonObject {
private String ebpNo;
private float sno;
private String depositSlipNo = null;
private String purpose = null;
RevenueHead RevenueHeadObject;
private String remarks;
private String description;
Currency CurrencyObject;
private float amount;
private boolean taxAdv;
private float taxyearId;
private float dueAmount;
private String createdBy;
private float createdOn;
// Getter Methods
public String getEbpNo() {
return ebpNo;
}
public float getSno() {
return sno;
}
public String getDepositSlipNo() {
return depositSlipNo;
}
public String getPurpose() {
return purpose;
}
public RevenueHead getRevenueHead() {
return RevenueHeadObject;
}
public String getRemarks() {
return remarks;
}
public String getDescription() {
return description;
}
public Currency getCurrency() {
return CurrencyObject;
}
public float getAmount() {
return amount;
}
public boolean getTaxAdv() {
return taxAdv;
}
public float getTaxyearId() {
return taxyearId;
}
public float getDueAmount() {
return dueAmount;
}
public String getCreatedBy() {
return createdBy;
}
public float getCreatedOn() {
return createdOn;
}
// Setter Methods
public void setEbpNo(String ebpNo) {
this.ebpNo = ebpNo;
}
public void setSno(float sno) {
this.sno = sno;
}
public void setDepositSlipNo(String depositSlipNo) {
this.depositSlipNo = depositSlipNo;
}
public void setPurpose(String purpose) {
this.purpose = purpose;
}
public void setRevenueHead(RevenueHead revenueHeadObject) {
this.RevenueHeadObject = revenueHeadObject;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
public void setDescription(String description) {
this.description = description;
}
public void setCurrency(Currency currencyObject) {
this.CurrencyObject = currencyObject;
}
public void setAmount(float amount) {
this.amount = amount;
}
public void setTaxAdv(boolean taxAdv) {
this.taxAdv = taxAdv;
}
public void setTaxyearId(float taxyearId) {
this.taxyearId = taxyearId;
}
public void setDueAmount(float dueAmount) {
this.dueAmount = dueAmount;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
public void setCreatedOn(float createdOn) {
this.createdOn = createdOn;
}
}
class Currency extends JsonObject {
private float currencyId;
private String currencyCode;
private String descEnglish;
private String descNepali;
// Getter Methods
public float getCurrencyId() {
return currencyId;
}
public String getCurrencyCode() {
return currencyCode;
}
public String getDescEnglish() {
return descEnglish;
}
public String getDescNepali() {
return descNepali;
}
// Setter Methods
public void setCurrencyId(float currencyId) {
this.currencyId = currencyId;
}
public void setCurrencyCode(String currencyCode) {
this.currencyCode = currencyCode;
}
public void setDescEnglish(String descEnglish) {
this.descEnglish = descEnglish;
}
public void setDescNepali(String descNepali) {
this.descNepali = descNepali;
}
}
class RevenueHead extends JsonObject {
private float id;
private String code;
private String oldCode;
private String nepaliName;
private String englishName;
private String description;
private String nepaliDescription;
private float preRevenueHeadId;
private boolean status;
private boolean federal;
private boolean state;
private boolean local;
private String remarks;
// Getter Methods
public float getId() {
return id;
}
public String getCode() {
return code;
}
public String getOldCode() {
return oldCode;
}
public String getNepaliName() {
return nepaliName;
}
public String getEnglishName() {
return englishName;
}
public String getDescription() {
return description;
}
public String getNepaliDescription() {
return nepaliDescription;
}
public float getPreRevenueHeadId() {
return preRevenueHeadId;
}
public boolean getStatus() {
return status;
}
public boolean getFederal() {
return federal;
}
public boolean getState() {
return state;
}
public boolean getLocal() {
return local;
}
public String getRemarks() {
return remarks;
}
// Setter Methods
public void setId(float id) {
this.id = id;
}
public void setCode(String code) {
this.code = code;
}
public void setOldCode(String oldCode) {
this.oldCode = oldCode;
}
public void setNepaliName(String nepaliName) {
this.nepaliName = nepaliName;
}
public void setEnglishName(String englishName) {
this.englishName = englishName;
}
public void setDescription(String description) {
this.description = description;
}
public void setNepaliDescription(String nepaliDescription) {
this.nepaliDescription = nepaliDescription;
}
public void setPreRevenueHeadId(float preRevenueHeadId) {
this.preRevenueHeadId = preRevenueHeadId;
}
public void setStatus(boolean status) {
this.status = status;
}
public void setFederal(boolean federal) {
this.federal = federal;
}
public void setState(boolean state) {
this.state = state;
}
public void setLocal(boolean local) {
this.local = local;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
}
3- TestDTO class
/**
*
*/
package test;
import java.util.ArrayList;
/**
* #author 00990
*
*/
public class TestDTO extends JsonObject {
private String code;
Data data;
private String message;
private String token;
private float status;
// Getter Methods
public String getCode() {
return code;
}
public Data getData() {
return data;
}
public String getMessage() {
return message;
}
public String getToken() {
return token;
}
public float getStatus() {
return status;
}
// Setter Methods
public void setCode(String code) {
this.code = code;
}
public void setData(Data dataObject) {
this.data = dataObject;
}
public void setMessage(String message) {
this.message = message;
}
public void setToken(String token) {
this.token = token;
}
public void setStatus(float status) {
this.status = status;
}
public static void main(String[] args) {
String jsonObj = "{\r\n" + " \"code\": \"2075-4673\",\r\n" + " \"data\": {\r\n"
+ " \"requestId\": 4673,\r\n" + " \"requestCode\": \"2075-4673\",\r\n"
+ " \"fiscalYear\": {\r\n" + " \"fiscalYearId\": 2075,\r\n"
+ " \"fiscalYearCode\": \"2075/76\"\r\n" + " },\r\n"
+ " \"requestDate\": 1531851300000,\r\n" + " \"requestNdate\": \"2075/04/02\",\r\n"
+ " \"rcAgency\": {\r\n" + " \"id\": 2373,\r\n"
+ " \"code\": \"210003501\",\r\n" + " \"rcAgencyEDesc\": \"ABC\",\r\n"
+ " \"rcAgencyNDesc\": \" सेवा \",\r\n" + " \"nepaliName\": \" सेवा\",\r\n"
+ " \"engishName\": null\r\n" + " },\r\n" + " \"status\": 1,\r\n"
+ " \"pan\": \"500127108\",\r\n" + " \"payerCode\": null,\r\n"
+ " \"payerEdesc\": \"ABC Enterprises\",\r\n" + " \"payerNdesc\": null,\r\n"
+ " \"payerAddress\": null,\r\n" + " \"payerPhone\": null,\r\n"
+ " \"totalAmount\": 14000,\r\n" + " \"createdBy\": \"psctest\",\r\n"
+ " \"createdOn\": 1531851300000,\r\n" + " \"collectedBank\": null,\r\n"
+ " \"collectedDate\": null,\r\n" + " \"collectedBy\": null,\r\n"
+ " \"token\": \"xxxxxxxxxxxxxxxx\",\r\n" + " \"details\": [\r\n" + " {\r\n"
+ " \"ebpNo\": \"4977\",\r\n" + " \"sno\": 1,\r\n"
+ " \"depositSlipNo\": null,\r\n" + " \"purpose\": null,\r\n"
+ " \"revenueHead\": {\r\n" + " \"id\": 14224,\r\n"
+ " \"code\": \"14224\",\r\n" + " \"oldCode\": \"14224\",\r\n"
+ " \"nepaliName\": \"शुल्क\",\r\n"
+ " \"englishName\": \"शुल्क\",\r\n"
+ " \"description\": \"शुल्क\",\r\n"
+ " \"nepaliDescription\": \"शुल्क\",\r\n"
+ " \"preRevenueHeadId\": 0,\r\n" + " \"status\": true,\r\n"
+ " \"federal\": true,\r\n" + " \"state\": true,\r\n"
+ " \"local\": true,\r\n" + " \"remarks\": \"xxxxx\"\r\n"
+ " },\r\n" + " \"remarks\": \"remarks\",\r\n"
+ " \"description\": \"Production\",\r\n" + " \"currency\": {\r\n"
+ " \"currencyId\": 524,\r\n" + " \"currencyCode\": \"524\",\r\n"
+ " \"descEnglish\": \"NRS\",\r\n"
+ " \"descNepali\": \"NRS\"\r\n" + " },\r\n"
+ " \"amount\": 14000,\r\n" + " \"taxAdv\": false,\r\n"
+ " \"taxyearId\": 2074,\r\n" + " \"dueAmount\": 14000,\r\n"
+ " \"createdBy\": \"psctest\",\r\n" + " \"createdOn\": 1531894162000\r\n"
+ " }\r\n" + " ]\r\n" + " },\r\n"
+ " \"message\": \"Voucher has saved sucessfully.\",\r\n"
+ " \"token\": \"xxxxxxxxxxxxxxxxxxxx\",\r\n" + " \"status\": 0\r\n" + "}";
System.out.println("Token :" +((TestDTO) new TestDTO().toObject(jsonObj)).getToken());
System.out.println(" PAN :" +((TestDTO) new TestDTO().toObject(jsonObj)).getData().getPan());
System.out.println("EBPNo :" +((TestDTO) new TestDTO().toObject(jsonObj)).getData().getDetails().get(0).getEbpNo());
}
}
class Data extends JsonObject {
private float requestId;
private String requestCode;
FiscalYear FiscalYearObject;
private float requestDate;
private String requestNdate;
RcAgency RcAgencyObject;
private float status;
private String pan;
private String payerCode = null;
private String payerEdesc;
private String payerNdesc = null;
private String payerAddress = null;
private String payerPhone = null;
private float totalAmount;
private String createdBy;
private float createdOn;
private String collectedBank = null;
private String collectedDate = null;
private String collectedBy = null;
private String token;
ArrayList<Detail> details = new ArrayList<Detail>();
// Getter Methods
public float getRequestId() {
return requestId;
}
public ArrayList<Detail> getDetails() {
return details;
}
public void addToDetails(Detail detail) {
if (details == null) {
details = new ArrayList<Detail>();
}
this.details.add(detail);
}
public String getRequestCode() {
return requestCode;
}
public FiscalYear getFiscalYear() {
return FiscalYearObject;
}
public float getRequestDate() {
return requestDate;
}
public String getRequestNdate() {
return requestNdate;
}
public RcAgency getRcAgency() {
return RcAgencyObject;
}
public float getStatus() {
return status;
}
public String getPan() {
return pan;
}
public String getPayerCode() {
return payerCode;
}
public String getPayerEdesc() {
return payerEdesc;
}
public String getPayerNdesc() {
return payerNdesc;
}
public String getPayerAddress() {
return payerAddress;
}
public String getPayerPhone() {
return payerPhone;
}
public float getTotalAmount() {
return totalAmount;
}
public String getCreatedBy() {
return createdBy;
}
public float getCreatedOn() {
return createdOn;
}
public String getCollectedBank() {
return collectedBank;
}
public String getCollectedDate() {
return collectedDate;
}
public String getCollectedBy() {
return collectedBy;
}
public String getToken() {
return token;
}
// Setter Methods
public void setRequestId(float requestId) {
this.requestId = requestId;
}
public void setRequestCode(String requestCode) {
this.requestCode = requestCode;
}
public void setFiscalYear(FiscalYear fiscalYearObject) {
this.FiscalYearObject = fiscalYearObject;
}
public void setRequestDate(float requestDate) {
this.requestDate = requestDate;
}
public void setRequestNdate(String requestNdate) {
this.requestNdate = requestNdate;
}
public void setRcAgency(RcAgency rcAgencyObject) {
this.RcAgencyObject = rcAgencyObject;
}
public void setStatus(float status) {
this.status = status;
}
public void setPan(String pan) {
this.pan = pan;
}
public void setPayerCode(String payerCode) {
this.payerCode = payerCode;
}
public void setPayerEdesc(String payerEdesc) {
this.payerEdesc = payerEdesc;
}
public void setPayerNdesc(String payerNdesc) {
this.payerNdesc = payerNdesc;
}
public void setPayerAddress(String payerAddress) {
this.payerAddress = payerAddress;
}
public void setPayerPhone(String payerPhone) {
this.payerPhone = payerPhone;
}
public void setTotalAmount(float totalAmount) {
this.totalAmount = totalAmount;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
public void setCreatedOn(float createdOn) {
this.createdOn = createdOn;
}
public void setCollectedBank(String collectedBank) {
this.collectedBank = collectedBank;
}
public void setCollectedDate(String collectedDate) {
this.collectedDate = collectedDate;
}
public void setCollectedBy(String collectedBy) {
this.collectedBy = collectedBy;
}
public void setToken(String token) {
this.token = token;
}
}
class RcAgency extends JsonObject {
private float id;
private String code;
private String rcAgencyEDesc;
private String rcAgencyNDesc;
private String nepaliName;
private String engishName = null;
// Getter Methods
public float getId() {
return id;
}
public String getCode() {
return code;
}
public String getRcAgencyEDesc() {
return rcAgencyEDesc;
}
public String getRcAgencyNDesc() {
return rcAgencyNDesc;
}
public String getNepaliName() {
return nepaliName;
}
public String getEngishName() {
return engishName;
}
// Setter Methods
public void setId(float id) {
this.id = id;
}
public void setCode(String code) {
this.code = code;
}
public void setRcAgencyEDesc(String rcAgencyEDesc) {
this.rcAgencyEDesc = rcAgencyEDesc;
}
public void setRcAgencyNDesc(String rcAgencyNDesc) {
this.rcAgencyNDesc = rcAgencyNDesc;
}
public void setNepaliName(String nepaliName) {
this.nepaliName = nepaliName;
}
public void setEngishName(String engishName) {
this.engishName = engishName;
}
}
class FiscalYear extends JsonObject {
private float fiscalYearId;
private String fiscalYearCode;
// Getter Methods
public float getFiscalYearId() {
return fiscalYearId;
}
public String getFiscalYearCode() {
return fiscalYearCode;
}
// Setter Methods
public void setFiscalYearId(float fiscalYearId) {
this.fiscalYearId = fiscalYearId;
}
public void setFiscalYearCode(String fiscalYearCode) {
this.fiscalYearCode = fiscalYearCode;
}
}
4- Run TestDTO class, here is the output
Token :xxxxxxxxxxxxxxxxxxxx PAN :500127108 EBPNo :4977
Just maintain null values in your code, and import gson-2.7.jar

Read json list in java

Previously I was reading json data in the following format:
JSON
{
"CreationTime":"2018-01-12T12:32:31",
"Id":"08f81fd7-21f1-48ba-a991-08d559b88cc5",
"Operation":"AddedToGroup",
"RecordType":14,
"UserType":0,
"Version":1,
"Workload":"OneDrive",
"ClientIP":"115.186.129.229",
"UserId":"omaji7#emumbaa10.onmicrosoft.com",
"EventSource":"SharePoint",
"ItemType":"Web"
}
I am reading this json data from a kafka topic and doing some stream processing on it and passing it onto another topic. In processing I have created two json objects, send and received.
Using this code:
final StreamsBuilder builder = new StreamsBuilder();
KStream<String, String> source_o365_user_activity = builder.stream("o365_user_activity");
source_o365_user_activity.flatMapValues(new ValueMapper<String, Iterable<String>>() {
#Override
public Iterable<String> apply(String value) {
System.out.println("========> o365_user_activity_by_date Log: " + value);
ArrayList<String> keywords = new ArrayList<String>();
try {
JSONObject send = new JSONObject();
JSONObject received = new JSONObject(value);
send.put("current_date", getCurrentDate().toString()); // UTC TIME
send.put("activity_time", received.get("CreationTime")); // CONSTANTS FINAL STATIC(Topic Names, Cassandra keys)
send.put("user_id", received.get("UserId"));
send.put("operation_type", received.get("Operation"));
send.put("app_name", received.get("Workload"));
keywords.add(send.toString());
// apply regex to value and for each match add it to keywords
} catch (Exception e) {
// TODO: handle exception
System.err.println("Unable to convert to json");
e.printStackTrace();
}
return keywords;
}
}).to("o365_user_activity_by_date");
This was fairly simple. Now I have a json data with lists in them.
JSON
{
"CreationTime":"2017-12-27T07:47:46",
"Id":"10ee505b-90a4-4ac1-b96f-a6dbca939694",
"Operation":"Add member to role.",
"OrganizationId":"2f88f444-62da-4aae-b8af-8331a6915801",
"RecordType":8,
"ResultStatus":"success",
"UserKey":"10030000A656FE5B#emumbaa10.onmicrosoft.com",
"UserType":0,
"Version":1,
"Workload":"AzureActiveDirectory",
"ObjectId":"mustafa#emumbaa10.onmicrosoft.com",
"UserId":"omaji7#emumbaa10.onmicrosoft.com",
"AzureActiveDirectoryEventType":1,
"ExtendedProperties":[
{
"Name":"Role.ObjectID",
"Value":"b0f54661-2d74-4c50-afa3-1ec803f12efe"
},
{
"Name":"Role.DisplayName",
"Value":"Billing Administrator"
},
{
"Name":"Role.TemplateId",
"Value":"b0f54661-2d74-4c50-afa3-1ec803f12efe"
},
{
"Name":"Role.WellKnownObjectName",
"Value":"BillingAdmins"
}
],
"Actor":[
{
"ID":"omaji7#emumbaa10.onmicrosoft.com",
"Type":5
},
{
"ID":"10030000A656FE5B",
"Type":3
},
{
"ID":"User_d03ca514-adfa-4585-a8bd-7182a9a086c7",
"Type":2
}
],
"ActorContextId":"2f88f444-62da-4aae-b8af-8331a6915801",
"InterSystemsId":"6d402a5b-c5de-4d9f-a805-9371c109e55f",
"IntraSystemId":"a5568d01-f100-497a-b88b-c9731ff31248",
"Target":[
{
"ID":"User_8f77c311-3ea0-4146-9f7d-db21bd052d3d",
"Type":2
},
{
"ID":"mustafa#emumbaa10.onmicrosoft.com",
"Type":5
},
{
"ID":"1003BFFDA67CCA03",
"Type":3
}
],
"TargetContextId":"2f88f444-62da-4aae-b8af-8331a6915801"
}
How can I go about doing the same thing in my Stream processing?
I want to be able to read JSON data against some keys (including the list data keys).

Why not convert JSON to Object and then filter against using the field in Object?

Can't you do like this?
send.put("target_0_id", received.get("Target").getJSONObject(0).get("ID"));

You can use gson library and can convert the json to object and using getter and setter you can build your desired output JSON. You can also parse the input JSON to fetch the JSONArray details. Following is the code how you can do it using POJO.
Input class:
public class Input {
private String UserType;
private String TargetContextId;
private String RecordType;
private String Operation;
private String Workload;
private String UserId;
private String OrganizationId;
private String InterSystemsId;
private ExtendedProperties[] ExtendedProperties;
private String ActorContextId;
private String CreationTime;
private String IntraSystemId;
private Target[] Target;
private Actor[] Actor;
private String Id;
private String Version;
private String ResultStatus;
private String ObjectId;
private String AzureActiveDirectoryEventType;
private String UserKey;
public String getUserType ()
{
return UserType;
}
public void setUserType (String UserType)
{
this.UserType = UserType;
}
public String getTargetContextId ()
{
return TargetContextId;
}
public void setTargetContextId (String TargetContextId)
{
this.TargetContextId = TargetContextId;
}
public String getRecordType ()
{
return RecordType;
}
public void setRecordType (String RecordType)
{
this.RecordType = RecordType;
}
public String getOperation ()
{
return Operation;
}
public void setOperation (String Operation)
{
this.Operation = Operation;
}
public String getWorkload ()
{
return Workload;
}
public void setWorkload (String Workload)
{
this.Workload = Workload;
}
public String getUserId ()
{
return UserId;
}
public void setUserId (String UserId)
{
this.UserId = UserId;
}
public String getOrganizationId ()
{
return OrganizationId;
}
public void setOrganizationId (String OrganizationId)
{
this.OrganizationId = OrganizationId;
}
public String getInterSystemsId ()
{
return InterSystemsId;
}
public void setInterSystemsId (String InterSystemsId)
{
this.InterSystemsId = InterSystemsId;
}
public ExtendedProperties[] getExtendedProperties ()
{
return ExtendedProperties;
}
public void setExtendedProperties (ExtendedProperties[] ExtendedProperties)
{
this.ExtendedProperties = ExtendedProperties;
}
public String getActorContextId ()
{
return ActorContextId;
}
public void setActorContextId (String ActorContextId)
{
this.ActorContextId = ActorContextId;
}
public String getCreationTime ()
{
return CreationTime;
}
public void setCreationTime (String CreationTime)
{
this.CreationTime = CreationTime;
}
public String getIntraSystemId ()
{
return IntraSystemId;
}
public void setIntraSystemId (String IntraSystemId)
{
this.IntraSystemId = IntraSystemId;
}
public Target[] getTarget ()
{
return Target;
}
public void setTarget (Target[] Target)
{
this.Target = Target;
}
public Actor[] getActor ()
{
return Actor;
}
public void setActor (Actor[] Actor)
{
this.Actor = Actor;
}
public String getId ()
{
return Id;
}
public void setId (String Id)
{
this.Id = Id;
}
public String getVersion ()
{
return Version;
}
public void setVersion (String Version)
{
this.Version = Version;
}
public String getResultStatus ()
{
return ResultStatus;
}
public void setResultStatus (String ResultStatus)
{
this.ResultStatus = ResultStatus;
}
public String getObjectId ()
{
return ObjectId;
}
public void setObjectId (String ObjectId)
{
this.ObjectId = ObjectId;
}
public String getAzureActiveDirectoryEventType ()
{
return AzureActiveDirectoryEventType;
}
public void setAzureActiveDirectoryEventType (String AzureActiveDirectoryEventType)
{
this.AzureActiveDirectoryEventType = AzureActiveDirectoryEventType;
}
public String getUserKey ()
{
return UserKey;
}
public void setUserKey (String UserKey)
{
this.UserKey = UserKey;
}
#Override
public String toString()
{
return "ClassPojo [UserType = "+UserType+", TargetContextId = "+TargetContextId+", RecordType = "+RecordType+", Operation = "+Operation+", Workload = "+Workload+", UserId = "+UserId+", OrganizationId = "+OrganizationId+", InterSystemsId = "+InterSystemsId+", ExtendedProperties = "+ExtendedProperties+", ActorContextId = "+ActorContextId+", CreationTime = "+CreationTime+", IntraSystemId = "+IntraSystemId+", Target = "+Target+", Actor = "+Actor+", Id = "+Id+", Version = "+Version+", ResultStatus = "+ResultStatus+", ObjectId = "+ObjectId+", AzureActiveDirectoryEventType = "+AzureActiveDirectoryEventType+", UserKey = "+UserKey+"]";
}}
Target class:
public class Target {
private String Type;
private String ID;
public String getType() {
return Type;
}
public void setType(String Type) {
this.Type = Type;
}
public String getID() {
return ID;
}
public void setID(String ID) {
this.ID = ID;
}
#Override
public String toString() {
return "ClassPojo [Type = " + Type + ", ID = " + ID + "]";
}}
Actor class :
public class Actor {
private String Type;
private String ID;
public String getType() {
return Type;
}
public void setType(String Type) {
this.Type = Type;
}
public String getID() {
return ID;
}
public void setID(String ID) {
this.ID = ID;
}
#Override
public String toString() {
return "ClassPojo [Type = " + Type + ", ID = " + ID + "]";
}}
ExtendedProperties class :
public class ExtendedProperties {
private String Name;
private String Value;
public String getName() {
return Name;
}
public void setName(String Name) {
this.Name = Name;
}
public String getValue() {
return Value;
}
public void setValue(String Value) {
this.Value = Value;
}
#Override
public String toString() {
return "ClassPojo [Name = " + Name + ", Value = " + Value + "]";
}}
Main class :
public class Stack {
public static void main(String[] args) {
doIt();
}
private static void doIt() {
String received = "{\"CreationTime\":\"2017-12-27T07:47:46\",\"Id\":\"10ee505b-90a4-4ac1-b96f-a6dbca939694\",\"Operation\":\"Add member to role.\",\"OrganizationId\":\"2f88f444-62da-4aae-b8af-8331a6915801\",\"RecordType\":8,\"ResultStatus\":\"success\",\"UserKey\":\"10030000A656FE5B#emumbaa10.onmicrosoft.com\",\"UserType\":0,\"Version\":1,\"Workload\":\"AzureActiveDirectory\",\"ObjectId\":\"mustafa#emumbaa10.onmicrosoft.com\",\"UserId\":\"omaji7#emumbaa10.onmicrosoft.com\",\"AzureActiveDirectoryEventType\":1,\"ExtendedProperties\":[{\"Name\":\"Role.ObjectID\",\"Value\":\"b0f54661-2d74-4c50-afa3-1ec803f12efe\"},{\"Name\":\"Role.DisplayName\",\"Value\":\"Billing Administrator\"},{\"Name\":\"Role.TemplateId\",\"Value\":\"b0f54661-2d74-4c50-afa3-1ec803f12efe\"},{\"Name\":\"Role.WellKnownObjectName\",\"Value\":\"BillingAdmins\"}],\"Actor\":[{\"ID\":\"omaji7#emumbaa10.onmicrosoft.com\",\"Type\":5},{\"ID\":\"10030000A656FE5B\",\"Type\":3},{\"ID\":\"User_d03ca514-adfa-4585-a8bd-7182a9a086c7\",\"Type\":2}],\"ActorContextId\":\"2f88f444-62da-4aae-b8af-8331a6915801\",\"InterSystemsId\":\"6d402a5b-c5de-4d9f-a805-9371c109e55f\",\"IntraSystemId\":\"a5568d01-f100-497a-b88b-c9731ff31248\",\"Target\":[{\"ID\":\"User_8f77c311-3ea0-4146-9f7d-db21bd052d3d\",\"Type\":2},{\"ID\":\"mustafa#emumbaa10.onmicrosoft.com\",\"Type\":5},{\"ID\":\"1003BFFDA67CCA03\",\"Type\":3}],\"TargetContextId\":\"2f88f444-62da-4aae-b8af-8331a6915801\"}";
JSONObject send = new JSONObject();
Gson gson = new Gson();
Input inputObject = gson.fromJson(received, Input.class);
// you can add values here and customize the output JSON
send.put("userId", inputObject.getUserId());
send.put("Workload", inputObject.getWorkload());
// read Actor list
Actor[] arr = inputObject.getActor();
for (int i = 0; i < arr.length; i++) {
// write your logic here how you want to handle the Actor list
// values
System.out.println(arr[i].getID() + " : " + arr[i].getType());
}
// read ExtendedProperties list
ExtendedProperties[] extendedProperties = inputObject.getExtendedProperties();
for (int j = 0; j < extendedProperties.length; j++) {
// write your logic here how you want to handle the
// ExtendedProperties list values
System.out.println(extendedProperties[j].getName() + " : " + extendedProperties[j].getValue());
}
System.out.println("*************");
}}
alternate main class without using POJO. Here org.json library have been used to parse the input JSON.
public class Test {
public static void main(String[] args) {
doIt();
}
private static void doIt() {
String received = "{\"CreationTime\":\"2017-12-27T07:47:46\",\"Id\":\"10ee505b-90a4-4ac1-b96f-a6dbca939694\",\"Operation\":\"Add member to role.\",\"OrganizationId\":\"2f88f444-62da-4aae-b8af-8331a6915801\",\"RecordType\":8,\"ResultStatus\":\"success\",\"UserKey\":\"10030000A656FE5B#emumbaa10.onmicrosoft.com\",\"UserType\":0,\"Version\":1,\"Workload\":\"AzureActiveDirectory\",\"ObjectId\":\"mustafa#emumbaa10.onmicrosoft.com\",\"UserId\":\"omaji7#emumbaa10.onmicrosoft.com\",\"AzureActiveDirectoryEventType\":1,\"ExtendedProperties\":[{\"Name\":\"Role.ObjectID\",\"Value\":\"b0f54661-2d74-4c50-afa3-1ec803f12efe\"},{\"Name\":\"Role.DisplayName\",\"Value\":\"Billing Administrator\"},{\"Name\":\"Role.TemplateId\",\"Value\":\"b0f54661-2d74-4c50-afa3-1ec803f12efe\"},{\"Name\":\"Role.WellKnownObjectName\",\"Value\":\"BillingAdmins\"}],\"Actor\":[{\"ID\":\"omaji7#emumbaa10.onmicrosoft.com\",\"Type\":5},{\"ID\":\"10030000A656FE5B\",\"Type\":3},{\"ID\":\"User_d03ca514-adfa-4585-a8bd-7182a9a086c7\",\"Type\":2}],\"ActorContextId\":\"2f88f444-62da-4aae-b8af-8331a6915801\",\"InterSystemsId\":\"6d402a5b-c5de-4d9f-a805-9371c109e55f\",\"IntraSystemId\":\"a5568d01-f100-497a-b88b-c9731ff31248\",\"Target\":[{\"ID\":\"User_8f77c311-3ea0-4146-9f7d-db21bd052d3d\",\"Type\":2},{\"ID\":\"mustafa#emumbaa10.onmicrosoft.com\",\"Type\":5},{\"ID\":\"1003BFFDA67CCA03\",\"Type\":3}],\"TargetContextId\":\"2f88f444-62da-4aae-b8af-8331a6915801\"}";
JSONObject send = new JSONObject();
JSONObject input = new JSONObject(received);
// you can add values here and customize the output JSON
send.put("userId", input.getString("UserId"));
send.put("Workload", input.getString("Workload"));
// read Actor list
JSONArray actorArray = input.getJSONArray("Actor");
for (int i = 0; i < actorArray.length(); i++) {
// write your logic here how you want to handle the Actor list
// values
System.out.println(
actorArray.getJSONObject(i).getString("ID") + ":" + actorArray.getJSONObject(i).getInt("Type"));
}
// read ExtendedProperties list
JSONArray extendedProperties = input.getJSONArray("ExtendedProperties");
for (int j = 0; j < extendedProperties.length(); j++) {
// write your logic here how you want to handle the
// ExtendedProperties list values
System.out.println(extendedProperties.getJSONObject(j).getString("Name") + " : "
+ extendedProperties.getJSONObject(j).getString("Value"));
}
System.out.println("*************");
}}

Getting #XmlAttribute/#XmlValue need to reference a Java type that maps to text in XML

In the following code, I'm getting following exception. XmlAttribute/XmlValue not working properly which I'm not able to identify:-
com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
#XmlAttribute/#XmlValue need to reference a Java type that maps to text in XML.
this problem is related to the following location:
at public java.util.Set nl.magnus.test.AddressComponent.getLocationTypeSet()
at nl.magnus.test.AddressComponent
My bean LocationType:-
#XmlRootElement(name = "type")
public class LocationType {
private Integer locationTypeId;
private String type;
private String status;
#Override
public String toString() {
return "LocationType [locationTypeId=" + locationTypeId + ", type=" + type + ", status=" + status + "]";
}
public Integer getLocationTypeId() {
return locationTypeId;
}
public void setLocationTypeId(Integer locationTypeId) {
this.locationTypeId = locationTypeId;
}
public String getType() {
return type;
}
#XmlAttribute(name = "type")
public void setType(String type) {
this.type = type;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
}
My bean AddressComponent:-
#XmlRootElement(name = "address_component")
public class AddressComponent {
private String longName;
private String shortName;
private Set<LocationType> locationTypeSet;
public String getLongName() {
return longName;
}
#XmlElement(name = "long_name")
public void setLongName(String longName) {
this.longName = longName;
}
public String getShortName() {
return shortName;
}
#XmlElement(name = "short_name")
public void setShortName(String shortName) {
this.shortName = shortName;
}
public Set<LocationType> getLocationTypeSet() {
return locationTypeSet;
}
#XmlAttribute(name = "type")
public void setLocationTypeSet(Set<LocationType> locationTypeSet) {
this.locationTypeSet = locationTypeSet;
}
#Override
public String toString() {
return "AddressComponent [longName=" + longName + ", shortName=" + shortName + ", locationTypeSet="
+ locationTypeSet + "]";
}
}
My Test class TestSmall:-
public class TestSmall {
public static void main(String[] args) {
try {
File file = new File("test.xml");
JAXBContext jaxbContext = JAXBContext.newInstance(AddressComponent.class);
Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
AddressComponent geoResponse = (AddressComponent) jaxbUnmarshaller.unmarshal(file);
System.out.println(geoResponse);
// Location latLong = geoResponse.getaResult().getGeometry().getLocation();
// System.out.println(latLong.getLatitude()+ ", "+latLong.getLongitude());
} catch (JAXBException e) {
e.printStackTrace();
}
}
}
My xml test.xml:-
<?xml version="1.0" encoding="UTF-8"?>
<address_component>
<long_name>BMC Colony</long_name>
<short_name>BMC Colony</short_name>
<type>neighborhood</type>
<type>political</type>
</address_component>
Please suggest me the required configuration.

In AddressComponent you mistakenly set type to an attribute #XmlAttribute(name = "type"). This should be an xml element instead.

JSON mapping to Java returning null value

I'm trying to map JSON to Java using gson.I was succesful in writing the logic but unsuccesful in getting the output.Below posted are my JSON and Java files.Any help would be highly appreciated.
This is the output i'm getting
value:null
Below posted is the code for .json files
{
"catitem": {
"id": "1.196289",
"src": "http://feeds.reuters.com/~r/reuters/MostRead/~3/PV-SzW7Pve0/story06.htm",
"orig_item_date": "Tuesday 16 June 2015 07:01:02 PM UTC",
"cat_id": "1",
"heding": "Putin says Russia beefing up nuclear arsenal",
"summary": "KUvdfbefb bngfb",
"body": {
"bpart": [
"KUBINKA,dvdvdvdvgbtgfdnhfbnrtdfbcv dbnfg"
]
}
}
}
Below posted is my .java file
public class offc {
public static void main(String[] args) {
JsonReader jr = null;
try {
jr = new JsonReader(new InputStreamReader(new FileInputStream(
"C:\\Users\\rishii\\IdeaProjects\\rishi\\src\\file3.json")));
} catch (Exception ex) {
ex.printStackTrace();
}
Doll s = new Doll();
Gson g = new Gson();
Doll sr1 = g.fromJson(jr, Doll.class);
System.out.println(sr1);
}
}
Below posted is the code for Doll.java
class Doll {
private catitem ct;
public void setCt(catitem ct) {
this.ct = ct;
}
public catitem getCt() {
return ct;
}
#Override
public String toString()
{
return "value:" + ct;
}
class catitem {
private String id;
private String src;
private String orig_item_date;
private String cat_id;
private String heding;
private String summary;
private body ber;
catitem(String id, String src, String orig_item_date, String cat_id, String heding,
String summary) {
this.id = id;
this.src = src;
this.orig_item_date = orig_item_date;
this.cat_id = cat_id;
this.heding = heding;
this.summary = summary;
}
public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
public void setSrc(String src) {
this.src = src;
}
public String getSrc() {
return src;
}
public void setOrig_item_date(String Orig_item_date) {
this.orig_item_date = Orig_item_date;
}
public String getOrig_item_date() {
return getOrig_item_date();
}
public void setCat_id(String cat_id) {
this.cat_id = cat_id;
}
public String getCat_id() {
return cat_id;
}
public void setHeding(String heding) {
this.heding = heding;
}
public String getHeding() {
return heding;
}
public void setSummary(String summary) {
this.summary = summary;
}
public String getSummary() {
return summary;
}
public void setBer(body ber) {
this.ber = ber;
}
public body getBer() {
return ber;
}
#Override
public String toString() {
return "id:" + id + "cat_id" + cat_id + "summary" + summary + "orig_date"
+ orig_item_date + "heding" + heding;
}
}
class body {
private String bpart;
public void setBpart(String r) {
this.bpart = r;
}
public String getBpart() {
return bpart;
}
#Override
public String toString() {
return "hiii";
}
}
}

The issue is in class Doll, You have a field ct but in json catitem. Rename the field ct to catitem or if you are using Gson use #SerializedName("catitem") on filed ct and it will work.