AbstractDockerTest.java

package eu.esdihumboldt.hale.common.test.docker;

import eu.esdihumboldt.hale.common.test.docker.config.RunWithContainer;
import eu.esdihumboldt.hale.common.test.docker.helper.DockerConfigHelper;

/**
 * An abstract base class which new unit test will extend to delegate the docker
 * container creation, startup, and removal jobs to the helper class.
 * 
 * @author Sameer Sheikh
 */
public abstract class AbstractDockerTest {

	/**
	 * a class loader
	 */
	private ClassLoader cl;

	/**
	 * default constructor
	 */
	public AbstractDockerTest() {

	}

	/**
	 * Parameterized constructor
	 * 
	 * @param cl a class loader
	 */
	public AbstractDockerTest(ClassLoader cl) {
		this.cl = cl;
	}

	/**
	 * It gets the class loader of the unit test class which will be useful for
	 * fetching the configuration from the classpath. It delegates the call with
	 * the given class loader.
	 * 
	 * @see DockerConfigHelper#withContainer(String, RunWithContainer,
	 *      ClassLoader)
	 * @param configName a configuration name key
	 * @param runInstance an anonymous class object
	 * @throws Exception if it fails delegate the method call
	 */
	protected void withContainer(String configName, RunWithContainer<?> runInstance)
			throws Exception {

		if (cl != null) {
			DockerConfigHelper.withContainer(configName, runInstance, cl);
		}
		else {
			DockerConfigHelper.withContainer(configName, runInstance, getClass().getClassLoader());
		}
	}
}