h1. Flowable User Interface
Flowable provides several web applications to demonstrate and leverage the functionality provided by the Flowable project. These web applications can be used with a Petals-SE-Flowable instance.
h2. UI Applications
Flowable offers four web applications enbaling Flowable engine monitoring:
* Flowable IDM
* Flowable Modeler
* Fowable Task
* Flowable Admin
The Flowable User Interface does not need the four web applications to work correctly. In our case we will only use Flowable IDM and Flowable Admin:
* Flowable-IDM: an Identity Management application that provides single sign-on authentication functionality for all the Flowable UI applications, and, for users with the IDM administrative privilege, it also provides functionality to manage users, groups and privileges.
* Flowable Admin: an administrative application that allows users with admin privilege to query the BPMN, DMN, form and content engines and provides several options to change process instances, tasks, jobs and so on. The admin application connects to the engines through the REST API that is deployed with the Petals-SE-Flowable instance.
h2. Flowable UI Admin Installation
Here, you can find some information to install Flowable UI Admin linked with a Flowable engine embedded into a Petals SE Flowable. More information about Flowable UI Admin can be found into the [Flowable's documentation|http://www.flowable.org/documentation.html].
For our sample installation, the required configuration is:
* a working Apache Tomcat installation with the application "Tomcat Manager Application" deployed. Apache Tomcat can be downloaded at : [http://tomcat.apache.org/],
* a Petals container where the Petals SE Flowable is running,
* the Flowable's REST API is enabled on the Petals SE Flowable.
And download the Flowable's distribution whose the version is the same as the Flowable engine embedded into Petals SE Flowable. This version can be downloaded at : [http://www.flowable.org/downloads.html].
{note}
Petals SE Flowable must be configured with a database reachable by external clients. So, using an in-memory or embedded database can be troubling.
{note}
h3. Installation
Flowable UI Admin requires Flowable UI IDM for its identity management that's why it is needed to deploy both webapplications.
Configuration of Flowable UIs is defined in two properties files
# '{{flowable-ui-app.properties}}' located in Tomcat classpath ({{$TOMCAT_HOME.lib}} or {{/var/lib/tomcatX/lib/}} according to your Tomcat's installation). Create it with the following content:
{code}
# Flowable engine REST API embedded into the Petals SE Flowable
rest.process.app.name=Flowable engine REST API
rest.process.app.description=Flowable engine REST API embedded into the Petals SE Flowable
rest.process.app.host=http://localhost
rest.process.app.port=8089
rest.process.app.contextroot=flowable-rest-api
rest.process.app.restroot=/
rest.process.app.user=rest-api-user
rest.process.app.password=user-api-rest-password
idm.app.url=http://localhost:8080/flowable-idm
idm.admin.user=admin
idm.admin.password=test
{code}
where:
|| Property name || Description ||
| {{rest.process.app.host}} | URL (scheme + host part) of the Flowable REST API running into the Petals SE Flowable |
| {{rest.process.app.port}} | URL (port part) of the Flowable REST API running into the Petals SE Flowable |
| {{rest.process.app.contextroot}} | URL (context part) of the Flowable REST API running into the Petals SE Flowable |
| {{rest.process.app.restroot}} | URL (service part) of the Flowable REST API running into the Petals SE Flowable |
| {{rest.process.app.user}}/{{rest.process.app.password}} | Credentials of the user with privileges to access the Flowable REST API running into the Petals SE Flowable |
| {{idm.app.url}} | The URL of the Flowable IDM UI web-application, used for authenticate user by other Flowable UIs. |
| {{idm.admin.user}}/{{idm.admin.password}} | Credentials of the IDM user with admin privileges (when running with default configuration: admin/test) |
# '{{db.properties}}' located in Tomcat classpath ({{$TOMCAT_HOME.lib}} or {{/var/lib/tomcatX/lib/}} according to your Tomcat's installation). Create it with the following content:
{code}
db=h2
datasource.driver=org.h2.Driver
datasource.url=jdbc:h2:tcp://localhost//tmp/h2-flowable.db
datasource.username=sa
datasource.password=
{code}
where:
|| Property name || Description ||
| {{db}} | Your database type. Available types are: {{h2}}, {{mysql}}, {{oracle}}, {{postgre}}, {{db2}}, {{mssql}} |
| {{datasource.driver}} | The JDBC driver to use |
| {{datasource.username}}/{{datasource.password}} | Credentials to connect to the database |
First, starts to install the Flowable UI IDM deploying the WAR file '{{flowable-idm.war}}' available in the Flowable's distribution archive with the Tomcat manager ([http://localhost:8080/manager]). Check this installation going to [http://localhost:8080/flowable-idm] and login with a user having an admin role. You should be able to manage users, groups and privileges. The default user with admin role is 'admin/test'.
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