thoerup/curcuitbreaker/AccountingCircuitBreaker.java

package dk.thoerup.curcuitbreaker;

import java.util.concurrent.atomic.AtomicInteger;

public class AccountingCircuitBreaker extends CircuitBreaker {

        private AtomicInteger tripCount = new AtomicInteger(0); // how many times ahs the CB tripped  
        private AtomicInteger blockCount = new AtomicInteger(0); //how many times has this CB blocked a call that would otherwise go to the backend
        private AtomicInteger totalFailureCount = new AtomicInteger(0); //how many times has the backend thrown an exception
        private AtomicInteger totalCallCount = new AtomicInteger(0);
        
        private long lastResetCounters = 0;
        
        public AccountingCircuitBreaker(String name, int threshold, long timeoutMS) {
                super(name, threshold, timeoutMS);

                resetCounters();
        }

        @Override
        public Object invoke(CircuitInvocation invocation) throws Throwable {
                Object result;
                try {
                        totalCallCount.incrementAndGet();
                        result = super.invoke(invocation);
                } catch (Throwable t) {
                        if (t instanceof CircuitBreakerException) {
                                blockCount.incrementAndGet();
                        } else {
                                totalFailureCount.incrementAndGet();
                        }
                        throw t;
                }
                
                return result;
        }

        @Override
        public void tripBreaker() {
                super.tripBreaker();
                tripCount.incrementAndGet();
        }
        
        public int getTripCount() {
                return tripCount.get();
        }
        
        public int getBlockCount() {
                return blockCount.get();        
        }
        
        public int getTotalFailureCount() {
                return totalFailureCount.get();
        }
        
        public long getLastResetCounters() {
                return lastResetCounters;
        }
        
        public int getTotalCallCount() {
                return totalCallCount.get();
        }
        
        public void resetCounters() {
                tripCount.set(0);
                blockCount.set(0);
                totalFailureCount.set(0);
                totalCallCount.set(0);
                
                lastResetCounters = System.currentTimeMillis();
        }
        
}
1	package dk.thoerup.curcuitbreaker;
2
3	import java.util.concurrent.atomic.AtomicInteger;
4
5	public class AccountingCircuitBreaker extends CircuitBreaker {
6
7	private AtomicInteger tripCount = new AtomicInteger(0); // how many times ahs the CB tripped
8	private AtomicInteger blockCount = new AtomicInteger(0); //how many times has this CB blocked a call that would otherwise go to the backend
9	private AtomicInteger totalFailureCount = new AtomicInteger(0); //how many times has the backend thrown an exception
10	private AtomicInteger totalCallCount = new AtomicInteger(0);
11
12	private long lastResetCounters = 0;
13
14	public AccountingCircuitBreaker(String name, int threshold, long timeoutMS) {
15	super(name, threshold, timeoutMS);
16
17	resetCounters();
18	}
19
20	@Override
21	public Object invoke(CircuitInvocation invocation) throws Throwable {
22	Object result;
23	try {
24	totalCallCount.incrementAndGet();
25	result = super.invoke(invocation);
26	} catch (Throwable t) {
27	if (t instanceof CircuitBreakerException) {
28	blockCount.incrementAndGet();
29	} else {
30	totalFailureCount.incrementAndGet();
31	}
32	throw t;
33	}
34
35	return result;
36	}
37
38	@Override
39	public void tripBreaker() {
40	super.tripBreaker();
41	tripCount.incrementAndGet();
42	}
43
44	public int getTripCount() {
45	return tripCount.get();
46	}
47
48	public int getBlockCount() {
49	return blockCount.get();
50	}
51
52	public int getTotalFailureCount() {
53	return totalFailureCount.get();
54	}
55
56	public long getLastResetCounters() {
57	return lastResetCounters;
58	}
59
60	public int getTotalCallCount() {
61	return totalCallCount.get();
62	}
63
64	public void resetCounters() {
65	tripCount.set(0);
66	blockCount.set(0);
67	totalFailureCount.set(0);
68	totalCallCount.set(0);
69
70	lastResetCounters = System.currentTimeMillis();
71	}
72
73	}