topic Re: How to trigger a Process from APS when an E-mail comes to ACS ? in Alfresco Forum

How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Mon, 26 Mar 2018 06:23:00 GMT

I have created a Process for Alfresco Process Service and now I want to trigger it from Alfresco Content Service when, an E-mail comes to Alfresco Content Service, how it's possible?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Mon, 26 Mar 2018 07:44:47 GMT

When an email arrives at ACS (i.e. "is filed as a document") you can have a custom behaviour (which you implemented using Java APIs) fire and call APS via its REST API to trigger your custom process.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Mon, 26 Mar 2018 08:14:12 GMT

Thank you for the reply!.
can you please tell me which behavior I supposed to use in my case?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Mon, 26 Mar 2018 08:34:25 GMT

onCreateNode sounds about right when you want to start it as soon as the document / email has been filed.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Tue, 27 Mar 2018 10:29:53 GMT

Thank you!!
but while getting Process definition from activiti webscript by the following call:

GET /alfresco/service/activiti/server/{token1}
It shows:

What is token1 here?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Tue, 27 Mar 2018 20:26:32 GMT

I don't really understand why you would be calling that webscript... That webscript is a backend for APS to call, and I thought you wanted to trigger an APS process from ACS, so you'd have to do call in the exact opposite direction. Also, that webscript is likely part of the Enterprise-only ACS / APS connector used for some internal handling, and as such is not supposed to be called from custom code (I mean, the response message states it hasn't been whitelisted).

For calling APS from ACS, take a look at the Alfresco Process Services ReST API documentation.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Wed, 28 Mar 2018 15:50:06 GMT

Thank you!

Now I am using already defined method from com.activiti.alfresco.service.ActivitiService Interface which is :

"public void startProcessById(String processId, String processName, Map<String, Object> formValues, ActivitiService.DocumentContext documentContext)"
but I have no idea about "ActivitiService.DocumentContext documentContext" Parameter and how to pass "formValues" parameter as

Map<String, Object> in startProcessById() method ?

Could you please guide me, how to use those Parameters in my custom Behaviour?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Thu, 29 Mar 2018 11:42:49 GMT

Hi,

I have written following code to trigger the process, Please have a look!

private Behaviour onCreateNode;

public void init() {
this.onCreateNode = new JavaBehaviour(this, "onCreateNode", NotificationFrequency.TRANSACTION_COMMIT);

this.policyComponent.bindClassBehaviour(QName.createQName(NamespaceService.ALFRESCO_URI, "onCreateNode"), ContentModel.TYPE_CONTENT, this.onCreateNode);
}

public void onCreateNode(ChildAssociationRef childasso) {
NodeRef node=childasso.getChildRef();

DocumentContext documentContext= new DocumentContext(node,"formFieldId");
Map<String, Object> formValues = new HashMap<String, Object>();

formValues.put(key,value);

try {
public void startProcessById(String processId, String processName, Map<String, Object> formValues, ActivitiService.DocumentContext documentContext)
} catch (RemoteActivitiException | ActivitiAuthenticationException e) {
e.printStackTrace();
}

but while executing it in Maven it shows me that: Package does not exist but I have uploaded the Package.

Thank you!

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Fri, 30 Mar 2018 13:40:05 GMT

Can you please provide the full class code as an attachment or in a syntax highlighter? The piece of code you provided does not make much sense - you have a method declaration inside the try-catch block, which would not compile at all.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Fri, 30 Mar 2018 14:31:12 GMT

not able to attach, there is no option for attaching document so providing only startProcessId() code from RemoteActivitiService class that belongs to com.activiti.alfresco.service package.

public void startProcessById(String processId, String processName, Map<String, Object> formValues, ActivitiService.DocumentContext documentContext)
throws RemoteActivitiException, ActivitiAuthenticationException
{
JSONObject startProcessVars = new JSONObject();
try
{
if (formValues != null) {
for (Map.Entry<String, Object> formValue : formValues.entrySet()) {
if ((formValue.getValue() instanceof ActivitiService.JsonSerializable)) {
startProcessVars.put((String)formValue.getKey(), ((ActivitiService.JsonSerializable)formValue.getValue()).toJSON());
} else {
startProcessVars.put((String)formValue.getKey(), formValue.getValue());
}
}
}
if (documentContext != null)
{
NodeRef nodeRef = documentContext.getNodeRef();
FileInfo fileInfo = this.fileFolderService.getFileInfo(nodeRef);
if ((!fileInfo.isFolder()) && (!fileInfo.isLink()))
{
SiteInfo siteInfo = this.siteService.getSite(nodeRef);
String sourceId = nodeRef.getId() + (siteInfo != null ? "@" + siteInfo.getShortName() : "");
JSONObject body = new JSONObject();
body.put("source", this.activitiParameters.getAlfrescoRepositoryName());
body.put("sourceId", sourceId);
body.put("name", fileInfo.getName());
body.put("mimeType", JSONObject.NULL);
body.put("simpleType", JSONObject.NULL);
body.put("link", false);
JSONObject contentObject = doJsonPost("app/rest/content", body);
int contentId = contentObject.getInt("id");
startProcessVars.put(documentContext.getFormFieldId(), String.valueOf(contentId));
}
}
startProcessInternal(processId, processName, startProcessVars);
}
catch (JSONException e)
{
e.printStackTrace();
}
}

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Fri, 30 Mar 2018 20:22:12 GMT

And can you provide more details to your error, i.e. the original exception stacktrace / response?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Fri, 30 Mar 2018 20:32:22 GMT

It shows: package(com.activiti.alfresco.service) does not exist, which I have used in my package.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Sat, 31 Mar 2018 11:28:30 GMT

Don't use it then. It sounds like a package that would only be available within APS itself, but now your are writing code inside ACS.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Mon, 02 Apr 2018 07:11:42 GMT

Could you please provide me some guidance or some example, like how I supposed to do this in ACS?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Mon, 02 Apr 2018 19:10:53 GMT

I haven't accessed APS from ACS myself, so don't have any ready-to-use code samples. But just use any Java-based tooling for doing REST calls and use the APS ReST API. Don't rely on any APS-internal APIs which are not available in ACS. Build your own little REST client abstraction, i.e. backed by libraries like resteasy, jackson or any other in that domain.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Tue, 03 Apr 2018 14:06:55 GMT

Hi again,

now I am trying to start the process by the following code but getting: Caused by: java.lang.RuntimeException: Failed : HTTP error code : 401

@Override
public void onCreateNode(ChildAssociationRef childasso) {

NodeRef node=childasso.getChildRef();

System.out.println(node);

System.out.println(childasso.getQName());

try {
URL url = new URL("localhost:9090/activiti-app/api/enterprise/process-instances");

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept", "application/json");

String input = "{\"processDefinitionId\":\"adhoctask:1:13\"}";
OutputStream os = conn.getOutputStream();
os.write(input.getBytes());
os.flush();

if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));

String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
}

conn.disconnect();

}catch (MalformedURLException e) {

e.printStackTrace();

}catch (IOException e) {

e.printStackTrace();

}

could you please correct me?

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Wed, 04 Apr 2018 09:29:05 GMT

Could you please provide the real error? I.e. look into alfresco.log for the details, because the screenshot only shows a wrapped message...

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Wed, 04 Apr 2018 12:26:33 GMT

Actually, I am getting two errors in the log while compiling, which are in the following screenshot.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

afaust — Thu, 05 Apr 2018 06:59:56 GMT

So there you have it - you are throwing that error yourself because you get a 401 response code... Your custom code isn't handling authentication.

Re: How to trigger a Process from APS when an E-mail comes to ACS ?

amitkulhari26 — Fri, 06 Apr 2018 06:14:02 GMT

So could you please pointer me where should I suppose to change in my code to trigger the process?