Programme: Master of Science in Business Information Systems FHNW Course: Pre-Master Information Systems Topic: Process Layer

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Master of Science in Business Information Systems FHNW
Pre-Master Information Systems
5. Process Layer
Andreas Martin
5. Process Layer
http://www.flickr.com/photos/dirk_hofmann/4200450207

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Process Layer
 Workflow Systems
 camunda BPM
 Hands-on
 Hands-on 5: BPM CDI WEB APPLICATION
 Hands-on 6: BPM JAVA EE
5. Process Layer

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Workflow Systems
5. Process Layer

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Workflow System Characteristics
5. Process Layer

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camunda BPM
Open Source BPM and Workflow based on BPMN 2.0
5. Process Layer

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camunda BPM – the Approach
5. Process Layer
Source: http://de.slideshare.net/camunda/open-source-bpm-mit-bpmn-20-und-java

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Features - Modeller: Process Modelling with BPMN 2.0
5. Process Layer
Source: http://camunda.org

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Features - Platform: Visual Process Monitoring
Find Process Instances
5. Process Layer
Source: http://camunda.org

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Features - Platform: Visual Process Monitoring
Inspect a Process Instance
5. Process Layer
Source: http://camunda.org

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Features - Platform: Visual Process Monitoring
Repair a Process Instance
5. Process Layer
Source: http://camunda.org

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Features - Platform: Implement Processes
Native Java API
5. Process Layer
Source: http://camunda.org

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Features - Platform: Implement Processes
Seamless Spring & Java EE Integration
5. Process Layer
Source: http://camunda.org

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Features - Platform: Execute BPMN 2.0
5. Process Layer
Source: http://camunda.org

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camunda BPM – History and Roadmap
5. Process Layer
Source: http://de.slideshare.net/camunda/open-source-bpm-mit-bpmn-20-und-java

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camunda BPM - Infrastructure
5. Process Layer
Source: http://de.slideshare.net/camunda/open-source-bpm-mit-bpmn-20-und-java

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camunda BPM - Components
5. Process Layer
Source: http://de.slideshare.net/camunda/open-source-bpm-mit-bpmn-20-und-java

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camunda BPM – Java EE service
5. Process Layer
@Named
@Stateless
public class CustomerService {
@Inject
@ProcessVariable
public Object customerId;
@Inject
private BusinessProcess businessProcess;
@EJB
CustomerEJB customerEJB;
public void loadCustomer() {
Customer customer = customerEJB.findCustomerById(Long
.valueOf((String) customerId));
if (customer != null) {
businessProcess.setVariable("customerFirstName", customer.getFirstName());
businessProcess.setVariable("customerLastName", customer.getLastName());
}
}
}

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camunda BPM – HTML forms
5. Process Layer
<form class="form-horizontal">
<div class="control-group">
<label class="control-label">Customer ID</label>
<div class="controls">
<input form-field type="string" name="customerId"></input>
</div>
</div>
<div class="control-group">
<label class="control-label">Amount</label>
<div class="controls">
<input form-field type="number" name="amount"></input>
</div>
</div>
</form>

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Hands-on 5
BPM CDI WEB APPLICATION
5. Process Layer

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Hands-on 5
2. Derive use cases from
workflow graph.
3. Extract service model from
use case model.
5. Process Layer
1. We are going to implement the “Loan Approval” process.

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Hands-on 5
4. Import “hands-on-5” project.
5. Model the execution graph using the workflow graph as blueprint.
6. Implement the services as modelled in service model.
7. The project already contains HTML forms – inspect them.
8. Add the service calls to the BPMN model and make sure that
process model is executable.
9. Add the form references and conditions to the BPMN model.
10. Deploy and run the workflow.
5. Process Layer

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Hands-on 6
BPM JAVA EE
5. Process Layer

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Database Connection
…will be used for the next hands-on
 Modify the MySQL_premscis-xa-ds.xml file:
 When using a Web Project in Eclipse, it is possible to deploy a datasource using a JBoss
datasource file (…-ds.xml)
 This file must be placed under:
Project
+---srcmainwebappWEB-INF
¦ faces-config.xml
¦ jboss-web.xml
¦ MySQL_premscis-xa-ds.xml
 Choose another student ‘number’ (DatabaseName) to avoid overwriting.
 When using Camunda BPM in a Java EE environment you have to implement a “xa-datasource”
5. Process Layer
<?xml version="1.0" encoding="UTF-8"?>
<datasources>
<xa-datasource jndi-name="java:jboss/datasources/MySQL_premscis_xa" pool-name="MySQL_premscis" enabled="true" use-java-
context="true">
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<xa-datasource-property name="PortNumber">80</xa-datasource-property>
<xa-datasource-property name="ServerName">mature.iwi.wirtschaft.fhnw.ch</xa-datasource-property>
<xa-datasource-property name="DatabaseName">premscis</xa-datasource-property>
<driver>mysql-connector-java-5.1.32-bin.jarcom.mysql.jdbc.Driver_5_1</driver>
<security>
<user-name>premscis</user-name>
<password>premscis</password>
</security>
</xa-datasource>
</datasources>

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Hands-on 6
…implement the Reference Project
5. Process Layer