OpenShift Java Client 
Java client for the OpenShift REST API. It pretty much offers all features that are currently available in the rhc-* command line tools (create/rename a domain, create/destroy applications, list applications, list available cartridges, add cartridges, etc.).
Only for Version 2
This client is used by JBoss Tools for OpenShift 2.x.
For later OpenShift versions see https://github.com/openshift/openshift-restclient-java/.
Usage
An exemplary usage of the client may look like the following:
IOpenShiftConnection connection =
new OpenShiftConnectionFactory().getConnection("myApplicationId", "user", "password");
IUser user = connection.getUser();
IDomain domain = user.createDomain("myDomain");
IApplication as7Application = domain.createApplication("myApplication", LatestVersionOf.jbossAs().get(user));
IEmbeddedCartridge mySqlCartridge = as7Application.addEmbeddableCartridge(LatestVersionOf.mySQL().get(user));
String unstructuredCredentials = mySqlCartridge.getCreationLog();
String mySqlConnectionUrl = mySqlCartridge.getUrl();
There are also 2 blog posts on jboss.org which discuss the API in more details:
- show-domain-info: openshift-java-client in a nutshell
- enable-openshift-ci: full example using openshift-java-client
Most insightful are the integration tests within the library which pretty much use the API in all details:
- ApplicationResourceIntegrationTest
- DomainResourceIntegrationTest
- EmbeddedCartridgeResourceIntegrationTest
- etc.
Download
You may either build from source using maven (mvn clean package) or get the prebuilt artifact from the maven central.