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Why is spring returning me an empty llist?

I dont seem to know why Spring is returning me an empty list enough I have passed in a JSON.stringify() string from reactJS
This is my code for reactJS
postData(item){
console.log(item)
fetch("http://localhost:8080/addSuspect", {
"method": "POST",
"headers": {
"content-type": "application/json"
},
"body": item
})
.then(response => {
console.log(response);
})
.catch(err => {
console.log(err);
});
}
uploadFile(event) {
let file
let file2
//Check if the movements andsuspected case profiles are uploaded
if(event.target.files.length !== 2){
this.setState({error:true, errorMsg:"You need to upload at least 2 files!"})
return
}
//Check if the file is the correct file
console.log("Files:")
for (var i=0, l=event.target.files.length; i<l; i++) {
console.log(event.target.files[i].name);
if (event.target.files[i].name.includes("_suspected")){
file = event.target.files[i]
}
else if (event.target.files[i].name.includes("_movements")){
file2 = event.target.files[i]
}
else{
this.setState({error:true, errorMsg:"You have uploaded invalid files! Please rename the files to <filename>_suspected (For suspected cases) or <filename>_movement (For suspected case movement)"})
return
}
}
//Reads the first file (Suspected profile)
if (file) {
const reader = new FileReader();
reader.onload = () => {
// Use reader.result
const lols = Papa.parse(reader.result, {header: true, skipEmptyLines: true}, )
console.log(lols.data)
// Posting csv data into db
// this.postData('"' + JSON.stringify(lols.data) + '"')
this.postData(JSON.stringify(lols.data))
// Adds names into dropdown
this.setState({dataList: ["None", ...lols.data.map(names => names.firstName + " " + names.lastName)]})
const data = lols.data
this.setState({suspectCases: data})
}
reader.readAsText(file)
}
}
Here is what I get from console.log():
[{"id":"5","firstName":"Bernadene","lastName":"Earey","email":"bearey4#huffingtonpost.com","gender":"Female","homeLongtitude":"","homeLatitude":"","homeShortaddress":"","homePostalcode":"552209","maritalStatus":"M","phoneNumber":"92568768","company":"Yadel","companyLongtitude":"","companyLatitude":""},{"id":"14","firstName":"Mada","lastName":"Lafaye","email":"mlafayed#gravatar.com","gender":"Female","homeLongtitude":"","homeLatitude":"","homeShortaddress":"","homePostalcode":"447136","maritalStatus":"M","phoneNumber":"85769345","company":"Eare","companyLongtitude":"","companyLatitude":""}]
Below shows the Code in my Spring Controller
#RestController
public class HomeController {
private final profileMapper profileMapper;
private final suspectedMapper suspectedMapper;
public HomeController(#Autowired profileMapper profileMapper, #Autowired suspectedMapper suspectedMapper) {
this.profileMapper = profileMapper;
this.suspectedMapper = suspectedMapper;
}
#GetMapping("/listAllPeopleProfiles")
//Removes the CORS error
#CrossOrigin(origins = "http://localhost:3000")
private Iterable<Peopleprofile> getAllPeopleProfiles (){
return profileMapper.findAllPeopleProfile();
}
#GetMapping("/listAllSuspectedCases")
#CrossOrigin(origins = "http://localhost:3000")
private Iterable<Suspected> getAllSuspected(){
return suspectedMapper.findallSuspected();
}
#PostMapping("/addSuspect")
#CrossOrigin(origins = "http://localhost:3000")
private void newSuspectedcases(ArrayList<Suspected> unformattedcases){
// try {
// final JSONObject obj = new JSONObject(unformattedcases);
//
// System.out.println(obj);
//// ObjectMapper mapper = new ObjectMapper();
//// List<Suspected> value = mapper.writeValue(obj, Suspected.class);
// } catch (JSONException e) {
// e.printStackTrace();
// }
//
// Gson gson = new Gson();
// List<Suspected> suspectedCases = gson.fromJson(unformattedcases, new TypeToken<List<Suspected>>(){}.getType());
System.out.println(unformattedcases);
// for (Suspected suspected : suspectedCases){
// suspectedMapper.addSuspectedCase(suspected);
// }
}
}

I am not sure I understand your issue. This is my best guess about what you meant and what you want to happen :
You want your controller to receive ArrayList < Suspected > as the POST request body
You want your controller to return ArrayList < Suspected > as the POST response body
If that's the case, try this :
[...]
#PostMapping("/addSuspect")
#CrossOrigin(origins = "http://localhost:3000")
#ResponseBody
private ArrayList<Suspected> newSuspectedcases(#RequestBody ArrayList<Suspected> unformattedcases){
[...]
System.out.println(unformattedcases);
[...]
return unformattedcases;
}
If it's not what you meant, please provide more information.

Firstly, your controller method is returning void and not, if I undestand correctly, the payload that you're trying to send. You have to make your controller method return List<Suspected> to receive a body in the response.
Another issue is that you're missing a #RequestBody annotation on the param, which tells Spring to get the body from the request and try to deserialize it to a ArrayList of Suspects.
Another thing to note, it is a good practice to use interfaces instead of implementation classes as parameters and return value in your methods. Consider using List<Suspected> instead of ArrayList<Suspected>
So the final method should look like this:
#PostMapping("/addSuspect")
#CrossOrigin(origins = "http://localhost:3000")
private List<Suspected> newSuspectedcases(#RequestBody List<Suspected> unformattedcases){
[...]
System.out.println(unformattedcases);
[...]
return unformattedcases;
}
PS For CORS issues you may want to using a local proxy setup as described in React docs: https://create-react-app.dev/docs/proxying-api-requests-in-development/ And configure CORS for remote environments, without adding localhost:3000.

How to Execute single GET request multiple time with different set of Headers & then need to validate response as well using java API automation

This is my code where I am using headers. I wasn't to execute same login API GET request with multiple set of headers and then need to validate response as well .
// API Test for Login
#Test(priority = 1)
public void GetLoginAPI() throws ClientProtocolException, IOException, JSONException {
HashMap<String, String> header = new HashMap<String, String>();
header.put("auth-id", prop.getProperty("authid1"));
header.putAll(header());
httpResp=restClient.getResult(prop.getProperty("LoginURL"), header);
//Status code Json String & Headers
JSONObject respJson = TestUtil.staCodeJsonStringHeaders(httpResp);
String idValue = TestUtil.getValueByJPath(respJson, "/user/id");
String uidValue = TestUtil.getValueByJPath(respJson, "/user/uid");
String locationValue = TestUtil.getValueByJPath(respJson, "/user/location");
System.out.println("Value of type : "+idValue);
System.out.println("Value of date : "+uidValue);
System.out.println("Value of date : "+locationValue);
Assert.assertEquals(Integer.parseInt(idValue), 319);
Assert.assertEquals(Integer.parseInt(uidValue), 20190807);
Assert.assertEquals(locationValue, "bangalore");
}

I believe you are using Testng
option 1- using dataprovider
for example
#DataProvider(name = "data-provider")
public Object[][] dataProviderMethod() {
return new headers[][] { { "data1" }, { "data1" } };
}
#Test(dataProvider = "data-provider")
public void GetLoginAPI(String header) throws ClientProtocolException, IOException, JSONException {
// Now use multiple header for GET request
}
Option 2-
Use Hash map to store header and add a loop and use it
HashMap<Integer, String> headervalues = new HashMap<Integer, String>();
headervalues.add("data 1)
headervalues.add("data 2) etc
and then using loop you can use multiple headers.
Option 3-
Using Excel use apacahe POI and then write down readExcel function and pass those values to your script.
Refer https://www.javatpoint.com/how-to-read-excel-file-in-java

How to pass data from vaadin webapp to C# GUI app

I have webapp in Vaadin Framework 8. I have Windows GUI app in C#.
The gui app is using WebBrowser component to display webapp. WebBrowser component is internally using IE11 core through ActiveX. I can successfully load and display the webapp in the gui app browser component.
I need to pass data from webapp to the gui app.
The webapp has many rows loaded on server side, only few are displayed in grid. I want to pass all data from webapp to gui app in some format (csv or json).
I have tryed some approaches, but I wasn't successfull.
[Approach 1]
Webapp: attach downloadable resource (csv) to Link with predefined id using FileDownloader. Download by user mouse click works fine, file save dialog pops up and data are downloaded successfully.
Link link = new Link("Data");
link.setId("myId");
StreamResource resource = getMyResource(data);
FileDownloader downloader = new FileDownloader(resource);
downloader.extend(link);
Page.getCurrent().getJavaScript().addFunction("test", new JavaScriptFunction() {
#Override
public void call(JsonArray arguments) {
Page.getCurrent().getJavaScript()
.execute("document.getElementById('myId').click()");
}
});
Gui app: raise onClick event on link and capture WebBrowser.FileDownload event, capture WebBrowser.Navigate event.
I have failed to raise onClick event from C# using:
HtmlElement el = webBrowser.Document.GetElementById("myId");
el.RaiseEvent("onClick");
el.InvokeMember("click");
webBrowser.Document.InvokeScript("document.getElementById('myId').click();", null);
webBrowser.Document.InvokeScript("test", null);
Result:
WebBrowser.FileDownload event doesn't work (is fired but can't capture url nor data), capture WebBrowser.Navigate event works partialy (can see resource url, but can't download data using byte[] b = new WebClient().DownloadData(e.Url);).
[Approach 2]
Similar to approach 1. I tryed to get resource url, put the direct url to Link and download the resource in c# using direct link. I can construct the same resource url as is used by browser to download data when user clicks the link.
Extended file downloader that keeps resource, key and connector:
public class ExtendedFileDownloader extends FileDownloader {
private String myKey;
private Resource myResource;
private ClientConnector myConnector;
public ExtendedFileDownloader(StreamResource resource, ClientConnector connector) {
super(resource);
myConnector = connector;
}
#Override
protected void setResource(String key, Resource resource) {
super.setResource(key, resource);
myKey = key;
myResource = resource;
}
public String getResourceUrl() {
ResourceReference ref =
ResourceReference.create(
myResource,
(myConnector != null) ? myConnector : this,
myKey);
String url = ref.getURL();
return url;
}
}
In view:
// fix app://path... urls to /<base-path>/path urls
private String fixResourceReferenceUrl(String resourceReferenceUrl) {
String resourceReferencePath = resourceReferenceUrl.replace("app://", "");
String uiBaseUrl = ui.getUiRootPath();
String fixedUrl = uiBaseUrl + "/" + resourceReferencePath;
return fixedUrl;
}
Link link2 = new Link("Data2");
link2.setId("myId2");
StreamResource resource = getMyResource(data);
ExtendedFileDownloader downloader = new ExtendedFileDownloader(resource, this);
String fixedResourceUrl = fixResourceReferenceUrl(downloader.getResourceUrl());
link2.setResource(new ExternalResource(fixedResourceUrl));
Result:
The data cannot be downloaded using this link, server error 410 or NotFound errors.
Any Ideas ? Any other approaches to try ?

I have finally solved the problem. The solution is very close to approach 2.
The resource url is passed in element with custom attribute. C# WebClient needs to set cookies from WebBrowser and Referer HTTP headers. The data can be successfully downloaded by C# app.
Element attribute in vaadin webapp can be set using Vaadin-addon Attributes.
Cookies in C# app can be retrieved using this solution.
// Fix resource urls begining with app://
public String fixResourceReferenceUrl(String resourceReferenceUrl) {
try {
String uiRootPath = UI.getCurrent().getUiRootPath();
URI location = Page.getCurrent().getLocation();
String appLocation = new URIBuilder()
.setScheme(location.getScheme())
.setHost(location.getHost())
.setPort(location.getPort())
.setPath(uiRootPath)
.build()
.toString();
String resourceReferencePath = resourceReferenceUrl.replace("app://", "");
String fixedUrl = appLocation + "/" + resourceReferencePath;
return fixedUrl;
}
catch (Exception e) {
return null;
}
}
In view (using ExtendedFileDownloader from above):
Link link = new Link("Data");
link.setId("myId");
StreamResource resource = getMyResource(data);
ExtendedFileDownloader downloader = new ExtendedFileDownloader(resource);
downloader.extend(link);
Attribute attr = new Attribute("x-my-data", fixResourceReferenceUrl(downloader.getResourceUrl()));
attr.extend(link);
link.setVisible(true);
In C# app:
[DllImport("wininet.dll", SetLastError = true)]
public static extern bool InternetGetCookieEx(
string url,
string cookieName,
StringBuilder cookieData,
ref int size,
Int32 dwFlags,
IntPtr lpReserved);
private const Int32 InternetCookieHttponly = 0x2000;
public static String GetUriCookies(String uri)
{
// Determine the size of the cookie
int datasize = 8192 * 16;
StringBuilder cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(uri, null, cookieData, ref datasize, InternetCookieHttponly, IntPtr.Zero))
{
if (datasize < 0)
return null;
// Allocate stringbuilder large enough to hold the cookie
cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(
uri,
null, cookieData,
ref datasize,
InternetCookieHttponly,
IntPtr.Zero))
return null;
}
return cookieData.ToString();
}
private void button_Click(object sender, EventArgs e)
{
HtmlElement el = webBrowser.Document.GetElementById("myId");
String url = el.GetAttribute("x-my-data");
String cookies = GetUriCookies(url);
WebClient wc = new WebClient();
wc.Headers.Add("Cookie", cookies);
wc.Headers.Add("Referer", WEB_APP_URL); // url of webapp base path, http://myhost/MyUI
byte[] data = wc.DownloadData(url);
}

Trying to insert the Element into ArrayList but, instead of inserting its updating with the current value

I have a below piece of code where I fetch the json data and pass it to the another method. Data will be keep changing on daily basis. Here, I want to retain my old Data, but somehow I am unable to do it.
Code to save the value:
json = getAllHistory(settings.getRapidView(),sprint.getId(),
settings.getCredentials(),settings.getBaseUrl());
List<History> historyList = new ArrayList<>();
Double completedIssues = ClientUtil.getJsonValue(json,sprint.getId(),"completedIssues");
Double allIssues = ClientUtil.getJsonValue(json,sprint.getId(),"allIssues");
Double remainingIssues = completedIssues-allIssues;
if (remainingIssues > 0) {
History history = new History();
history.setMiliseconds(ZonedDateTime.now().toInstant().toEpochMilli());
history.setCompletedIssues(completedIssues);
history.setAllIssues(allIssues);
history.setRemainingIssues(remainingIssues);
historyList.add(history);
sprintdata.gethistory().addAll(historyList);
sprintdata.setHistory(historyList);
}
Code to make the Rest call:
public static String getAllHistory(String rapidView, Long sprintId, String base64Credentials,String baseUrl) {
try
{
String query = String.format(GET_URL_DATA, rapidView, sprintId);
query=baseUrl+query;
HttpEntity<String> entity = new HttpEntity<String>(getHeader(base64Credentials));
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> result = restTemplate.exchange(query, HttpMethod.GET, entity, String.class);
String outputJson= result.getBody();
return outputJson;
}
catch (Exception e)
{
// TODO: handle exception
return null;
}
}
Code to get the specific Json value:
public static Double getJsonValue(String json, Long sprintId, String field) {
try{
return new GsonBuilder().
create().
fromJson(json, JsonObject.class).
getAsJsonObject("contents").
getAsJsonObject(field).
get("value").
getAsDouble();
}
catch(Exception ex)
{
return null;
}
}
I can't find the error on my own, so please help me.
I apologize for my mistake.

A list of one element is created.
Then to the old history list of sprintdata: all items of the new list are added (1):
sprintdata.gethistory().addAll(historyList);
Then the old sprintdata history list is replaced with the new one of 1 element:
sprintdata.setHistory(historyList);
So the sole thing to do would be: add one element to the old history list.
sprintdata.gethistory().add(history);

How can I update custom properties in alfresco workflow task using only Java?

First, I want to say thanks to everyone that took their time to help me figure this out because I was searching for more than a week for a solution to my problem. Here it is:
My goal is to start a custom workflow in Alfresco Community 5.2 and to set some custom properties in the first task trough a web script using only the Public Java API. My class is extending AbstractWebScript. Currently I have success with starting the workflow and setting properties like bpm:workflowDescription, but I'm not able to set my custom properties in the tasks.
Here is the code:
public class StartWorkflow extends AbstractWebScript {
/**
* The Alfresco Service Registry that gives access to all public content services in Alfresco.
*/
private ServiceRegistry serviceRegistry;
public void setServiceRegistry(ServiceRegistry serviceRegistry) {
this.serviceRegistry = serviceRegistry;
}
#Override
public void execute(WebScriptRequest req, WebScriptResponse res) throws IOException {
// Create JSON object for the response
JSONObject obj = new JSONObject();
try {
// Check if parameter defName is present in the request
String wfDefFromReq = req.getParameter("defName");
if (wfDefFromReq == null) {
obj.put("resultCode", "1 (Error)");
obj.put("errorMessage", "Parameter defName not found.");
return;
}
// Get the WFL Service
WorkflowService workflowService = serviceRegistry.getWorkflowService();
// Build WFL Definition name
String wfDefName = "activiti$" + wfDefFromReq;
// Get WorkflowDefinition object
WorkflowDefinition wfDef = workflowService.getDefinitionByName(wfDefName);
// Check if such WorkflowDefinition exists
if (wfDef == null) {
obj.put("resultCode", "1 (Error)");
obj.put("errorMessage", "No workflow definition found for defName = " + wfDefName);
return;
}
// Get parameters from the request
Content reqContent = req.getContent();
if (reqContent == null) {
throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Missing request body.");
}
String content;
content = reqContent.getContent();
if (content.isEmpty()) {
throw new WebScriptException(Status.STATUS_BAD_REQUEST, "Content is empty");
}
JSONTokener jsonTokener = new JSONTokener(content);
JSONObject json = new JSONObject(jsonTokener);
// Set the workflow description
Map<QName, Serializable> params = new HashMap();
params.put(WorkflowModel.PROP_WORKFLOW_DESCRIPTION, "Workflow started from JAVA API");
// Start the workflow
WorkflowPath wfPath = workflowService.startWorkflow(wfDef.getId(), params);
// Get params from the POST request
Map<QName, Serializable> reqParams = new HashMap();
Iterator<String> i = json.keys();
while (i.hasNext()) {
String paramName = i.next();
QName qName = QName.createQName(paramName);
String value = json.getString(qName.getLocalName());
reqParams.put(qName, value);
}
// Try to update the task properties
// Get the next active task which contains the properties to update
WorkflowTask wfTask = workflowService.getTasksForWorkflowPath(wfPath.getId()).get(0);
// Update properties
WorkflowTask updatedTask = workflowService.updateTask(wfTask.getId(), reqParams, null, null);
obj.put("resultCode", "0 (Success)");
obj.put("workflowId", wfPath.getId());
} catch (JSONException e) {
throw new WebScriptException(Status.STATUS_BAD_REQUEST,
e.getLocalizedMessage());
} catch (IOException ioe) {
throw new WebScriptException(Status.STATUS_BAD_REQUEST,
"Error when parsing the request.",
ioe);
} finally {
// build a JSON string and send it back
String jsonString = obj.toString();
res.getWriter().write(jsonString);
}
}
}
Here is how I call the webscript:
curl -v -uadmin:admin -X POST -d #postParams.json localhost:8080/alfresco/s/workflow/startJava?defName=nameOfTheWFLDefinition -H "Content-Type:application/json"
In postParams.json file I have the required pairs for property/value which I need to update:
{
"cmprop:propOne" : "Value 1",
"cmprop:propTwo" : "Value 2",
"cmprop:propThree" : "Value 3"
}
The workflow is started, bpm:workflowDescription is set correctly, but the properties in the task are not visible to be set.
I made a JS script which I call when the workflow is started:
execution.setVariable('bpm_workflowDescription', 'Some String ' + execution.getVariable('cmprop:propOne'));
And actually the value for cmprop:propOne is used and the description is properly updated - which means that those properties are updated somewhere (on execution level maybe?) but I cannot figure out why they are not visible when I open the task.
I had success with starting the workflow and updating the properties using the JavaScript API with:
if (wfdef) {
// Get the params
wfparams = {};
if (jsonRequest) {
for ( var prop in jsonRequest) {
wfparams[prop] = jsonRequest[prop];
}
}
wfpackage = workflow.createPackage();
wfpath = wfdef.startWorkflow(wfpackage, wfparams);
The problem is that I only want to use the public Java API, please help.
Thanks!

Do you set your variables locally in your tasks? From what I see, it seems that you define your variables at the execution level, but not at the state level. If you take a look at the ootb adhoc.bpmn20.xml file (https://github.com/Activiti/Activiti-Designer/blob/master/org.activiti.designer.eclipse/src/main/resources/templates/adhoc.bpmn20.xml), you can notice an event listener that sets the variable locally:
<extensionElements>
<activiti:taskListener event="create" class="org.alfresco.repo.workflow.activiti.tasklistener.ScriptTaskListener">
<activiti:field name="script">
<activiti:string>
if (typeof bpm_workflowDueDate != 'undefined') task.setVariableLocal('bpm_dueDate', bpm_workflowDueDate);
if (typeof bpm_workflowPriority != 'undefined') task.priority = bpm_workflowPriority;
</activiti:string>
</activiti:field>
</activiti:taskListener>
</extensionElements>

Usually, I just try to import all tasks for my custom model prefix. So for you, it should look like that:
import java.util.Set;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.DelegateTask;
import org.apache.log4j.Logger;
public class ImportVariables extends AbstractTaskListener {
private Logger logger = Logger.getLogger(ImportVariables.class);
#Override
public void notify(DelegateTask task) {
logger.debug("Inside ImportVariables.notify()");
logger.debug("Task ID:" + task.getId());
logger.debug("Task name:" + task.getName());
logger.debug("Task proc ID:" + task.getProcessInstanceId());
logger.debug("Task def key:" + task.getTaskDefinitionKey());
DelegateExecution execution = task.getExecution();
Set<String> executionVariables = execution.getVariableNamesLocal();
for (String variableName : executionVariables) {
// If the variable starts by "cmprop_"
if (variableName.startsWith("cmprop_")) {
// Publish it at the task level
task.setVariableLocal(variableName, execution.getVariableLocal(variableName));
}
}
}
}