topic Send attachments with mail in Alfresco Archive

Send attachments with mail

kavi — Tue, 21 Jun 2011 10:07:46 GMT

Hi ,Is it possible to send attachments to mail using <input type="file"> value?I have uploaded a file in a form using <input type="file" name="datafile" size="40">‍Now i want to send that file in mail using service task.How to do it?Any idea.Thanks,Kv

Re: Send attachments with mail

frederikherema1 — Fri, 24 Jun 2011 07:03:36 GMT

There is no file-upload built in yet into Explorer1 webapp, so I'm affraid nothing out of the box will do. Don't really have an good suggestion on how you should get started on that…

If you consider using Explorer2 (will be released in distro next release), you can always use the formProperties and create a custom formProperty type with file-upload field using vaadin…

Re: Send attachments with mail

kavi — Mon, 27 Jun 2011 12:05:07 GMT

Hi ,
if not how to send attachments for emails?
Is there any other way?

Thanks,
Kavi

Re: Send attachments with mail

frederikherema1 — Mon, 27 Jun 2011 17:33:08 GMT

You could use the Commons Email directly, through a service-task and add the attachments through that. Take a look at the MailActivityBehaviour…

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 06:10:05 GMT

Hi ,

Being new to activiti can u tel me as what u mean by Commons Email?

How to add Commons Email directly? Any sample or eg?

Thanks,
kavi

Re: Send attachments with mail

frederikherema1 — Tue, 28 Jun 2011 06:30:33 GMT

Activiti allows you to write any java-code you want and use it as a piece of your process -> JavaDelegate. See http://activiti.org/userguide/index.html#bpmnJavaServiceTask

Since we use commons-email (apache) to send emails in activiti, you can use it, the same way as the MailActivityBehavilour does… Look at the code in org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior.

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 06:45:46 GMT

Hi ,

Thanks a lot for ur reply.
Now i used Java service class as

<serviceTask completionQuantity="1"  activiti:class="org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior" id="sid-1430FC68-FA04-41E0-9EDB-A9A0329F42A3" implementation="webService" isForCompensation="false" name="Email to applicant on status &quot;OnHold&quot;" startQuantity="1">…….

Now for this class where can i write the code?
For commons email the code is

EmailAttachment attachment = new EmailAttachment();
  attachment.setPath("mypictures/john.jpg");
  attachment.setDisposition(EmailAttachment.ATTACHMENT);
  attachment.setDescription("Picture of John");
  attachment.setName("John");

Should i write this code?
If so where? if not is it enough to set field injection in extension element as <activiti:field name="to" expression="${Email}" />. Likewise what field is used for attachment?

Thanks,
kavi

Re: Send attachments with mail

frederikherema1 — Tue, 28 Jun 2011 07:04:17 GMT

As I said in the first reply, MailActivityBehaviour doesn't have a field for attachment, you will have to write your OWN JavaDelegate that will send the email with an attachment. How you get the attachment there is all up to you…

Take a look at the userguide in the chapters about field injection in JavaDelegates on how to use that to configure your Javadelegate from a bpmn-process.

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 07:20:55 GMT

Hi ,
sorry for my misunderstanding.

In that user guide they have given "declare a 'extensionElements' XML element before the actual field injection declarations". What is mean by that?

If i am using "org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior" class what should i declare? What fields should i use for attachment?

Kindly clarify as i am not able ti proceed further.

Thanks,
kavi

Re: Send attachments with mail

frederikherema1 — Tue, 28 Jun 2011 07:33:58 GMT

BPMN scheme requires this, wrapping all custom XML-elements in a extentionsElements element, so all NON-BPMN stuff (eg. activiti:field) is placed here:


<serviceTask id="javaService" 
    name="Java service invocation" 
    activiti:class="org.activiti.examples.bpmn.servicetask.ToUpperCaseFieldInjected">
    <extensionElements>
      <activiti:field name="text" stringValue="Hello World" />
  </extensionElements>           
</serviceTask>

The MailActivityBehaviour is actually the class that is used when using the mail-task. So when declaring a serviceTask with activiti:type=mail, this is used. So it only has the fields that are shown below, NO field for attachment:


<serviceTask id="sendMail" activiti:type="mail">
  <extensionElements>
    <activiti:field name="from" stringValue="order-shipping@thecompany.com" />
    <activiti:field name="to" expression="${recipient}" />
    <activiti:field name="subject" expression="Your order ${orderId} has been shipped" />
    <activiti:field name="html">
      <activiti:expression>
        <![CDATA[
          <html>
            <body>
              Hello ${male ? 'Mr.' : 'Mrs.' } ${recipientName},<br/><br/>
                 
              As of ${now}, your order has been <b>processed and shipped</b>.<br/><br/>
                  
              Kind regards,<br/>
                  
              TheCompany.
            </body>
          </html>
        ]]>
      </activiti:expression>
    </activiti:field>      
  </extensionElements>
</serviceTask>

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 07:39:00 GMT

Hi ,

Now i can get you.
So how can i write a class for mail with attachment ?

Is the class " org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior" enough or which class i should use for using Commons email technique.

For attachment using commons email i found the code from the link http://commons.apache.org/email/userguide.html.

Where can i write the code and how can i assign values for the fields in the class?

Kindly help me out.

Thanks,
kavi

Re: Send attachments with mail

jbarrez — Tue, 28 Jun 2011 09:44:06 GMT

No, the mail task doesnt allow to add attachment.
But it is very easy to write your own (or extends the existing) ActivityBehaviour to do that.

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 10:14:57 GMT

Hi ,

I dont no how to write my own being new to activiti.

I have my own code. But where to include my code in java service task?

Thanks,
kavi

Re: Send attachments with mail

frederikherema1 — Tue, 28 Jun 2011 10:50:22 GMT

Implement a java-class that implements JavaDelegate, and use that class in your process:


serviceTask id="javaService" 
             name="My Java Service Task" 
             activiti:class="org.activiti.MyJavaDelegate" />


public class ToUppercase implements JavaDelegate {
  
  public void execute(DelegateExecution execution) throws Exception {
    String var = (String) execution.getVariable("input");
    var = var.toUpperCase();
    execution.setVariable("input", var);
  }
  
}

You can read all this is the userguide, examples are included as unit-tests… That should do to get you started

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 12:14:18 GMT

Hi ,

I have created a class for mail attachment and wrote the code in myname.java.
In service task i included

<serviceTask completionQuantity="1"  activiti:class="mailattachment" id="sid-1430FC68-FA04-41E0-9EDB-A9A0329F42A3" implementation="webService" isForCompensation="false" name="Email to applicant on status &quot;OnHold&quot;" startQuantity="1">….

But when i run my process when it comes to this service it says "05280002 Wrapped Exception (with status template): couldn't instantiate class mailattachment ".

When i searched in forum i found that i should include the file in as jar in "activiti\apps\apache-tomcat-6.0.32\webapps\activiti-rest\WEB-INF\lib" .
How to create jar file for .java file.?

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 12:26:29 GMT

Hi,

When i tried to build my java file it says

package org.apache.commons.mail does not exist
import org.apache.commons.mail.EmailException;

What am i missing?

Thanks,
kavi

Re: Send attachments with mail

kavi — Tue, 28 Jun 2011 13:00:10 GMT

Hi ,

I am not able to compile any of the java file present in

C:\activiti\workspace\activiti-engine-examples\src\main\java\org\activiti\examples\bpmn\servicetask

.

It says import error. It seems the lib reference is missing.

How to include reference. Eg:import org.activiti.engine.delegate.Expression; says cannot find org.activiti.engine.delegate.

So how to compile this?

Thanks
kavi

Re: Send attachments with mail

jbarrez — Wed, 29 Jun 2011 10:24:07 GMT

Just add the Activiti jar to your classpath.

Re: Send attachments with mail

moushmi — Mon, 09 Jul 2012 13:10:45 GMT

HI @frederikheremans,

-As suggested by you,I tried implementing the Business logic in my java service task via commons email.
-Created 1 attachment field in the bpmn20.xml file as:- <activiti:formProperty id="attachment to be provided" expression="${attachment}" name="attachment" type="string" required="false"/>
-Next I tried to modify the source code via MailActivityBehavior class.

This is throwing me an error as(partially quoted) :
Caused by: org.activiti.engine.ActivitiException: couldn't find type for org.apache.commons.mail.EmailAttachment@60e2ecb3
at org.activiti.engine.impl.variable.DefaultVariableTypes.findVariableType(DefaultVariableTypes.java:62)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.persistence.entity.VariableScopeImpl.createVariableLocal(VariableScopeImpl.java:223)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.persistence.entity.VariableScopeImpl.setVariable(VariableScopeImpl.java:175)[113rg.activiti.engine:5.9.0]
at com.causeway.Example.MailInit.execute(MailInit.java:47)[149:activiti-examples:1.0.0.SNAPSHOT]
at org.activiti.engine.impl.delegate.JavaDelegateInvocation.invoke(JavaDelegateInvocation.java:34)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:37)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:25)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.bpmn.behavior.ServiceTaskJavaDelegateActivityBehavior.execute(ServiceTaskJavaDelegateActivityBehavior.java:49)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.bpmn.behavior.ServiceTaskJavaDelegateActivityBehavior.execute(ServiceTaskJavaDelegateActivityBehavior.java:40)[113rg.activiti.engine:5.9.0]
at org.activiti.engine.impl.bpmn.helper.ClassDelegate.execute(ClassDelegate.java:115)[113rg.activiti.engine:5.9.0]

Please let me know the type for email attachment to be according to the error?
Grateful if you could provide your email id.

Thanks in advance!!

Re: Send attachments with mail

trademak — Mon, 09 Jul 2012 13:20:40 GMT

Hi,

It looks like you try to set a variable of type EmailAttachment in the process instance context, is that right?
You can't do that because EmailAttachment doesn't implement the Serializable interface. Therefore this error message.

Best regards,

Tijs