thoerup/circuitbreaker/OpenState.java

package dk.thoerup.curcuitbreaker;

import java.util.concurrent.atomic.AtomicLong;


public final class OpenState implements CircuitBreakerState {

        final private AtomicLong tripTime = new AtomicLong(0);
        final private AtomicLong timeout = new AtomicLong(0);
        
        public void setTimeout(long timeout) {
                this.timeout.set( timeout );
        }
        
    public void preInvoke(CircuitBreaker circuitBreaker) throws Exception
    {
        long now = System.currentTimeMillis();
        long elapsed = now - tripTime.get();
        
        if(elapsed > timeout.get())
        {
            circuitBreaker.attemptReset();
        }
        else
        {
            throw new CircuitBreakerException("Circuit Breaker is open; calls are failing fast");
        }
    }

    public void postInvoke(CircuitBreaker circuitBreaker) throws Exception
    {
        // NO OP
    }

    public void onError(CircuitBreaker circuitBreaker, Exception t) throws Exception
    {
        // NO OP
    }

    void trip()
    {
        long now = System.currentTimeMillis();
        tripTime.set(now);
    }

        public String getName() {
                return "Open";
        }
        
        public long getTimeout() {
                return timeout.get();
        }
        
        public long getElapsed() {
        long now = System.currentTimeMillis();
        long elapsed = now - tripTime.get();
        return elapsed;
        }

}
1	torben	393	package dk.thoerup.curcuitbreaker;
2
3			import java.util.concurrent.atomic.AtomicLong;
4
5
6	torben	424	public final class OpenState implements CircuitBreakerState {
7	torben	393
8	torben	424	final private AtomicLong tripTime = new AtomicLong(0);
9			final private AtomicLong timeout = new AtomicLong(0);
10	torben	393
11			public void setTimeout(long timeout) {
12			this.timeout.set( timeout );
13			}
14
15	torben	450	public void preInvoke(CircuitBreaker circuitBreaker) throws Exception
16	torben	393	{
17			long now = System.currentTimeMillis();
18			long elapsed = now - tripTime.get();
19
20			if(elapsed > timeout.get())
21			{
22			circuitBreaker.attemptReset();
23			}
24			else
25			{
26			throw new CircuitBreakerException("Circuit Breaker is open; calls are failing fast");
27			}
28			}
29
30	torben	450	public void postInvoke(CircuitBreaker circuitBreaker) throws Exception
31	torben	393	{
32			// NO OP
33			}
34
35	torben	450	public void onError(CircuitBreaker circuitBreaker, Exception t) throws Exception
36	torben	393	{
37			// NO OP
38			}
39
40			void trip()
41			{
42			long now = System.currentTimeMillis();
43			tripTime.set(now);
44			}
45
46	torben	397	public String getName() {
47			return "Open";
48			}
49
50			public long getTimeout() {
51			return timeout.get();
52			}
53
54			public long getElapsed() {
55			long now = System.currentTimeMillis();
56			long elapsed = now - tripTime.get();
57			return elapsed;
58			}
59
60	torben	393	}