AProcess.java

package com.ikokoon.serenity.process;

import org.apache.log4j.Logger;

/**
 * This class is the process that calls the child processes in the chain. At the end of the coverage processing, i.e. when the unit tests are finished
 * the processes for collecting the dependency and aggregating the data are started. Each process is chained to the next. The order of the processes
 * is somewhat important. The accumulator should run first, then the aggregator then the writer.
 *
 * @author Michael Couck
 * @since 23.08.09
 * @version 01.00
 */
public abstract class AProcess implements IProcess {

	/** The logger for the class. */
	protected Logger logger = Logger.getLogger(this.getClass());
	/** The child process in the chain if there is one. */
	private IProcess child;

	/**
	 * Constructor takes the parent, and the child calls the parent to add it's self to the parent.
	 *
	 * @param parent
	 *            the parent of this process
	 */
	public AProcess(IProcess parent) {
		if (parent != null) {
			parent.setChild(this);
		}
	}

	/**
	 * This is the method that executes the logic for the process. It will be called by the parent after the parent has executed it's own logic.
	 */
	public void execute() {
		if (child != null) {
			child.execute();
		}
	}

	/**
	 * Sets the child of this process. Typically the child calls the parenht to set it's self as the child, in the constructor
	 *
	 * @param child
	 *            the child to set in the parent
	 */
	public void setChild(IProcess child) {
		this.child = child;
	}

}