package alice.codesegment;

import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

import org.apache.log4j.Logger;

public class CodeSegmentManager {

	private static CodeSegmentManager instance = new CodeSegmentManager();
	public LinkedBlockingQueue<CodeSegment> readyQueue = new LinkedBlockingQueue<CodeSegment>();
	private ThreadPoolExecutor codeSegmentExecutor = new ThreadPoolExecutor(Runtime.getRuntime().availableProcessors(), // initial number of threads
				                                Runtime.getRuntime().availableProcessors(),
												Integer.MAX_VALUE, // keepAliveTime
												TimeUnit.SECONDS,
												new LinkedBlockingQueue<Runnable>());
	private Logger logger = Logger.getLogger(CodeSegmentManager.class);

	public static CodeSegmentManager get() {
		return instance;
	}

	public static void submit(CodeSegment cs) {
		CodeSegmentManager csManager = CodeSegmentManager.get();
		csManager.codeSegmentExecutor.execute(cs);
		if (csManager.logger.isDebugEnabled()) {
			csManager.logger.debug(cs.getClass().getName());
		}
	}
	
}