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SpringBoot - activiti - Get ProcessVariables

I have this piece of code :
List<ProcessInstance> instances =
processEngine.getRuntimeService().createProcessInstanceQuery().processInstanceId(processInstanceId).list();
instances.forEach(this::listProcessInstance);
private void listProcessInstance (ProcessInstance processInstance) {
log.info("<-------------- ProcessInstance ---------------> {} ", processInstance);
log.info(String.valueOf(processInstance.getProcessVariables()));
log.info("<-------------- ProcessInstance --------------->");
}
where ProcessVariables is null, but going on the tabla there are info:
select * from ACT_RU_VARIABLE where PROC_INST_ID_ = 76759;

For performance reasons the default query does not return the process variables. You have to explicitly tell the query to include the variables:
List<ProcessInstance> instances = processEngine.getRuntimeService().createProcessInstanceQuery().processInstanceId(processInstanceId).includeProcessVariables().list();

Try with the below code snippet,
ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery().processInstanceIds(processInstanceIds);
List<ProcessInstance> processInstances = processInstanceQuery.list();
for (ProcessInstance processInstance : processInstances) {
log.info(processInstance.getId());
log.info(processInstance.getProcessVariables());
}

Passing parameters from java to html to create google chart

There are four query values which I want to put in google chart value1 to value4. The problem is passing values from java to html. Under below I posted relevant codes.
Those
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load("current", {packages:["corechart"]});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Task', 'Hours per Day'],
['value1', **3**],
['value2', **2**],
['value3', **2**],
['value4', **2**]
]);
var options = {
title: 'My Daily Activities',
pieHole: 0.4,
};
var chart = new google.visualization.PieChart(document.getElementById('donutchart'));
chart.draw(data, options);
}
</script>
And this is java class.
public ResponseEntity<Map<String,Object>> status() {
Map<String,Object> map = new HashMap<String,Object>();
long countByXmlSuccessResult = statusRepository.countByXmlSuccessResult();
long countByXmlErrorResult = statusRepository.countByXmlErrorResult();
long countByJsonSuccessResult = statusRepository.countByJsonSuccessResult();
long countByJsonErrorResult = statusRepository.countByJsonErrorResult();
map.put("xml success:", **countByXmlSuccessResult**);
map.put("xml error:", **countByXmlErrorResult**);
map.put("json success:", **countByJsonSuccessResult**);
map.put("json error:", **countByJsonErrorResult**);
return new ResponseEntity<Map<String,Object>>(map, HttpStatus.OK);
}
plus, html file path is under src/main/java folder and java file path is under src/main/resources folder.

You can expose that Java functionality as a service, and then make an ajax call to that service using jquery and finally grab the result and use it in your google chart code.
Ex:
Spring Boot:
#RestController
public class myHomeController{
...
#RequestMapping("/getValues")
public someDomainClass getMyValues(){
...
//someDomainClass is just a reg. pojo to store your values.
someDominClass class1 = new someDomainClass(value1, value2, value3
, value4);
return class1;
}
}
Your HTML file:
...
<script>
$.ajax({
url: "/getValues",
type: "GET",
success: function(result){
//result is a json object containing your values 1..4.
},
failure: functtion(err){...}
});
</script>
Best of luck :)

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));
}
}
}
}

ERROR com.basho.riak.client.core.RiakNode - Write failed on RiakNode

I am using Riak KV with Java client and I am unable to write on the RiakNode, although I have created a Bucket with the name of the space I want to create an object on.
I basically have the TasteOfRiak.java class, which has been provided by the basho developer website: https://raw.githubusercontent.com/basho/basho_docs/master/extras/code-examples/TasteOfRiak.java
import com.basho.riak.client.api.RiakClient;
import com.basho.riak.client.api.commands.kv.DeleteValue;
import com.basho.riak.client.api.commands.kv.FetchValue;
import com.basho.riak.client.api.commands.kv.StoreValue;
import com.basho.riak.client.api.commands.kv.UpdateValue;
import com.basho.riak.client.core.RiakCluster;
import com.basho.riak.client.core.RiakNode;
import com.basho.riak.client.core.query.Location;
import com.basho.riak.client.core.query.Namespace;
import com.basho.riak.client.core.query.RiakObject;
import com.basho.riak.client.core.util.BinaryValue;
import java.net.UnknownHostException;
public class TasteOfRiak {
// A basic POJO class to demonstrate typed exchanges with Riak
public static class Book {
public String title;
public String author;
public String body;
public String isbn;
public Integer copiesOwned;
}
// This will allow us to update the book object handling the
// entire fetch/modify/update cycle.
public static class BookUpdate extends UpdateValue.Update<Book> {
private final Book update;
public BookUpdate(Book update){
this.update = update;
}
#Override
public Book apply(Book t) {
if(t == null) {
t = new Book();
}
t.author = update.author;
t.body = update.body;
t.copiesOwned = update.copiesOwned;
t.isbn = update.isbn;
t.title = update.title;
return t;
}
}
// This will create a client object that we can use to interact with Riak
private static RiakCluster setUpCluster() throws UnknownHostException {
// This example will use only one node listening on localhost:10017
RiakNode node = new RiakNode.Builder()
.withRemoteAddress("127.0.0.1")
.withRemotePort(8087)
.build();
// This cluster object takes our one node as an argument
RiakCluster cluster = new RiakCluster.Builder(node)
.build();
// The cluster must be started to work, otherwise you will see errors
cluster.start();
return cluster;
}
public static void main( String[] args ) {
try {
// First, we'll create a basic object storing a movie quote
RiakObject quoteObject = new RiakObject()
// We tell Riak that we're storing plaintext, not JSON, HTML, etc.
.setContentType("text/plain")
// Objects are ultimately stored as binaries
.setValue(BinaryValue.create("You're dangerous, Maverick"));
System.out.println("Basic object created");
// In the new Java client, instead of buckets you interact with Namespace
// objects, which consist of a bucket AND a bucket type; if you don't
// supply a bucket type, "default" is used; the Namespace below will set
// only a bucket, without supplying a bucket type
Namespace quotesBucket = new Namespace("quotes");
// With our Namespace object in hand, we can create a Location object,
// which allows us to pass in a key as well
Location quoteObjectLocation = new Location(quotesBucket, "Iceman");
System.out.println("Location object created for quote object");
// With our RiakObject in hand, we can create a StoreValue operation
StoreValue storeOp = new StoreValue.Builder(quoteObject)
.withLocation(quoteObjectLocation)
.build();
System.out.println("StoreValue operation created");
// And now we can use our setUpCluster() function to create a cluster
// object which we can then use to create a client object and then
// execute our storage operation
RiakCluster cluster = setUpCluster();
RiakClient client = new RiakClient(cluster);
System.out.println("Client object successfully created");
StoreValue.Response storeOpResp = client.execute(storeOp);
System.out.println("Object storage operation successfully completed");
// Now we can verify that the object has been stored properly by
// creating and executing a FetchValue operation
FetchValue fetchOp = new FetchValue.Builder(quoteObjectLocation)
.build();
RiakObject fetchedObject = client.execute(fetchOp).getValue(RiakObject.class);
assert(fetchedObject.getValue().equals(quoteObject.getValue()));
System.out.println("Success! The object we created and the object we fetched have the same value");
// Now update the fetched object
fetchedObject.setValue(BinaryValue.create("You can be my wingman any time."));
StoreValue updateOp = new StoreValue.Builder(fetchedObject)
.withLocation(quoteObjectLocation)
.build();
StoreValue.Response updateOpResp = client.execute(updateOp);
updateOpResp = client.execute(updateOp);
// And we'll delete the object
DeleteValue deleteOp = new DeleteValue.Builder(quoteObjectLocation)
.build();
client.execute(deleteOp);
System.out.println("Quote object successfully deleted");
Book mobyDick = new Book();
mobyDick.title = "Moby Dick";
mobyDick.author = "Herman Melville";
mobyDick.body = "Call me Ishmael. Some years ago...";
mobyDick.isbn = "1111979723";
mobyDick.copiesOwned = 3;
System.out.println("Book object created");
// Now we'll assign a Location for the book, create a StoreValue
// operation, and store the book
Namespace booksBucket = new Namespace("books");
Location mobyDickLocation = new Location(booksBucket, "moby_dick");
StoreValue storeBookOp = new StoreValue.Builder(mobyDick)
.withLocation(mobyDickLocation)
.build();
client.execute(storeBookOp);
System.out.println("Moby Dick information now stored in Riak");
// And we'll verify that we can fetch the info about Moby Dick and
// that that info will match the object we created initially
FetchValue fetchMobyDickOp = new FetchValue.Builder(mobyDickLocation)
.build();
Book fetchedBook = client.execute(fetchMobyDickOp).getValue(Book.class);
System.out.println("Book object successfully fetched");
assert(mobyDick.getClass() == fetchedBook.getClass());
assert(mobyDick.title.equals(fetchedBook.title));
assert(mobyDick.author.equals(fetchedBook.author));
// And so on...
// Now to update the book with additional copies
mobyDick.copiesOwned = 5;
BookUpdate updatedBook = new BookUpdate(mobyDick);
UpdateValue updateValue = new UpdateValue.Builder(mobyDickLocation)
.withUpdate(updatedBook).build();
UpdateValue.Response response = client.execute(updateValue);
System.out.println("Success! All of our tests check out");
// Now that we're all finished, we should shut our cluster object down
cluster.shutdown();
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
Whenever Eclipse executes this code: "StoreValue.Response storeOpResp = client.execute(storeOp);
System.out.println("Object storage operation successfully completed");"
I get an error that "ERROR com.basho.riak.client.core.RiakNode - Write failed on RiakNode".
Before running that program I have already created a quotesBucket bucket and have activated it.
Does anyone know where the problem is?

Can you store an object through http? Try this in terminal:
curl -XPUT \
-H "Content-Type: text/plain" \
-d "You're dangerous, Maverick" \
http://localhost:8098/types/default/buckets/quotes/keys/Iceman?returnbody=true

Rhino debugger - can't hit a breakpoint?

I have this legacy web application on inspection, that utilizes Rhino to script some database import tasks. Scripted task is executed properly.
However, I can't seem to hit a breakpoint in the JS script file. I'm not even sure if it's possible to debug JS script this way, so if anyone can give some more insight or advice... The core setup is as follows:
Debugger (listener):
// executes when the app is launched...
if (!ContextFactory.hasExplicitGlobal()) {
ContextFactory cxf = new ContextFactory();
ContextFactory.initGlobal(cxf);
String rhino = "transport=socket,suspend=y,address=9999";
System.out.println(">>>>>> RHINO <<<<<<");
RhinoDebugger debugger = new RhinoDebugger(rhino);
debugger.start();
cxf.addListener(debugger);
}
...
Scripting context:
#Component("importDebugMockup")
public class ImportDebugMockup extends Import {
#Autowired private SomeDAO someDAO;
#Autowired private SomeOtherDAO someOtherDAO;
...
private ContextFactory cxf;
private Document doc;
public ImportDebugMockup() {
this.cxf = ContextFactory.getGlobal();
}
...
#Transactional
public Map<String, Object> doImport(final String scriptName, final String filePath)
throws ScriptException, IOException {
final Map<String, Object> results = new HashMap<>();
final String scriptSource = this.readJSFileToString(filePath, Charset.forName("UTF-8"));
Context context = this.cxf.enterContext();
try {
Scriptable scope = new ImporterTopLevel(context);
ScriptableObject.putProperty(scope, "doc", doc);
ScriptableObject.putProperty(scope, "someDAO", this.someDAO);
ScriptableObject.putProperty(scope, "someOtherDAO", this.someOtherDAO);
...
ScriptableObject.putProperty(scope, "results", results);
Object functionArgs[] = { "null" };
String scriptExecName = "script" + scriptName + ".js";
context.evaluateString(scope, scriptSource, scriptExecName, 1, null);
Function fct = (Function) scope.get("doImport", scope); // call doImport()
Object result = fct.call(context, scope, scope, functionArgs);
} finally {
Context.exit();
}
return results;
}
}
The script:
importPackage(java.io);
importPackage(some.package);
// ...
// some utility functions here
// ...
function doImport() {
...
var i = 0; // set breakpoint here - can't hit it
someDAO.doSomething(...); // using propagated java object
...
someOtherDAO.doSomethingElse();
...
}
EDIT
Remote JS Debug configuration (with Mozilla Rhino - Attaching Connector at port 9999) is set up, like in this article, for example. Source is configured to point to directory where the JS script is located, however it does not suspend on breakpoint...