/*
??Copyright?（c）?2013?Oracle?and/or?its?affiliates.?All?rights?reserved.

??The?MySQL?Connector/J?is?licensed?under?the?terms?of?the?GPLv2
???like?most?MySQL?Connectors.
??There?are?special?exceptions?to?the?terms?and?conditions?of?the?GPLv2?as?it?is?applied?to
??this?software?see?the?FLOSS?License?Exception
??.

??This?program?is?free?software;?you?can?redistribute?it?and/or?modify?it?under?the?terms
??of?the?GNU?General?Public?License?as?published?by?the?Free?Software?Foundation;?version?2
??of?the?License.

??This?program?is?distributed?in?the?hope?that?it?will?be?useful?but?WITHOUT?ANY?WARRANTY;
??without?even?the?implied?warranty?of?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.
??See?the?GNU?General?Public?License?for?more?details.

??You?should?have?received?a?copy?of?the?GNU?General?Public?License?along?with?this
??program;?if?not?write?to?the?Free?Software?Foundation?Inc.?51?Franklin?St?Fifth
??Floor?Boston?MA?02110-1301??USA

?*/
package?com.mysql.jdbc;

import?java.lang.ref.Reference;
import?com.mysql.jdbc.NonRegisteringDriver.ConnectionPhantomReference;

public?class?AbandonedConnectionCleanupThread?extends?Thread?{
	private?static?boolean?running?=?true;
	private?static?Thread?threadRef?=?null;

	public?AbandonedConnectionCleanupThread（）?{
		super（“Abandoned?connection?cleanup?thread“）;
	}

	public?void?run（）?{
		threadRef?=?this;
		threadRef.setContextClassLoader（null）;
		while?（running）?{
			try?{
				Reference?ref?=?NonRegisteringDriver.refQueue.remove（100）;
				if?（ref?!=?null）?{
					try?{
						（（ConnectionPhantomReference）?ref）.cleanup（）;
					}?finally?{
						NonRegisteringDriver.connectionPhantomRefs.remove（ref）;
					}
				}

			}?catch?（Exception?ex）?{
				//?no?where?to?really?log?this?if?we‘re?static
			}
		}
	}

	public?static?void?shutdown（）?throws?InterruptedException?{
		running?=?false;
		if?（threadRef?!=?null）?{
			threadRef.interrupt（）;
			threadRef.join（）;
			threadRef?=?null;
		}
	}

}