package org.openslx.taskmanager.tasks;

import org.openslx.taskmanager.api.SystemCommandTask;

public class PsList extends SystemCommandTask
{
	private final Output status = new Output();

	@Override
	protected String[] initCommandLine()
	{
		this.timeoutSeconds = 3;
		return new String[] {
				"/bin/ps",
				"auxf"
		};
	}

	@Override
	protected boolean processEnded( int exitCode )
	{
		return exitCode == 0;
	}

	@Override
	protected void processStdOut( String line )
	{
		status.addMessage( line );
	}

	@Override
	protected void processStdErr( String line )
	{
		status.addMessage( line );
	}

	@Override
	protected boolean initTask()
	{
		this.setStatusObject( status );
		return true;
	}

	/**
	 * Output - contains additional status data of this task
	 */
	class Output
	{
		private String messages = null;

		private void addMessage( String str )
		{
			if ( messages == null ) {
				messages = str;
			} else {
				messages += "\n" + str;
			}
		}
	}

}