thoerup/circuitbreaker/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 failureCount = new AtomicInteger(0); //how many times has the backend thrown an exception
        
        private long lastReset = 0;
        
        public AccountingCircuitBreaker(String name, int threshold, long timeoutMS) {
                super(name, threshold, timeoutMS);
        }

        @Override
        public Object invoke(CircuitInvocation invocation) throws Throwable {
                Object result;
                try {
                        result = super.invoke(invocation);
                } catch (Throwable t) {
                        if (t instanceof CircuitBreakerException) {
                                blockCount.incrementAndGet();
                        } else {
                                failureCount.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 getFailureCount() {
                return failureCount.get();
        }
        
        public long getLastReset() {
                return lastReset;
        }
        
        public void resetCounters() {
                tripCount.set(0);
                blockCount.set(0);
                failureCount.set(0);
                
                lastReset = System.currentTimeMillis();
        }
        
}
1	torben	399	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 failureCount = new AtomicInteger(0); //how many times has the backend thrown an exception
10
11	torben	400	private long lastReset = 0;
12
13	torben	399	public AccountingCircuitBreaker(String name, int threshold, long timeoutMS) {
14			super(name, threshold, timeoutMS);
15			}
16
17			@Override
18			public Object invoke(CircuitInvocation invocation) throws Throwable {
19			Object result;
20			try {
21			result = super.invoke(invocation);
22			} catch (Throwable t) {
23			if (t instanceof CircuitBreakerException) {
24			blockCount.incrementAndGet();
25			} else {
26			failureCount.incrementAndGet();
27			}
28			throw t;
29			}
30
31			return result;
32			}
33
34			@Override
35			public void tripBreaker() {
36			super.tripBreaker();
37			tripCount.incrementAndGet();
38			}
39
40			public int getTripCount() {
41			return tripCount.get();
42			}
43
44			public int getBlockCount() {
45			return blockCount.get();
46			}
47
48			public int getFailureCount() {
49			return failureCount.get();
50			}
51
52	torben	400	public long getLastReset() {
53			return lastReset;
54			}
55
56	torben	399	public void resetCounters() {
57			tripCount.set(0);
58			blockCount.set(0);
59			failureCount.set(0);
60	torben	400
61			lastReset = System.currentTimeMillis();
62	torben	399	}
63
64			}