Andreas Martin - Page 1

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 +---src\main\webapp\WEB-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