thoerup/circuitbreaker/AccountingCircuitBreaker.java

package dk.thoerup.circuitbreaker;

import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

import dk.thoerup.circuitbreaker.config.BreakerConfig;
import dk.thoerup.circuitbreaker.config.StaticConfig;

public class AccountingCircuitBreaker extends CircuitBreaker {

        private AtomicInteger tripCount = new AtomicInteger(0); // how many times ahs the CB tripped  
        private AtomicInteger retripCount = new AtomicInteger(0);   
        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 AtomicLong lastTrip = new AtomicLong(0);
        private AtomicLong lastRetrip = new AtomicLong(0);
        private AtomicLong lastFailure = new AtomicLong(0);
        private AtomicLong lastReset = new AtomicLong(0);
        
        private long lastResetCounters = 0;
        
        @Deprecated
        public AccountingCircuitBreaker(String name, int treshold, int timeout) {
                this(name,  new StaticConfig(treshold, timeout) ) ;
        }
        
        public AccountingCircuitBreaker(String name, BreakerConfig config) {
                super(name, config);

                resetCounters();
        }

        @Override
        public Object invoke(CircuitInvocation invocation) throws Exception {
                Object result;
                try {
                        totalCallCount.incrementAndGet();
                        result = super.invoke(invocation);
                } catch (Exception e) {
                        if (e instanceof CircuitBreakerException) {
                                blockCount.incrementAndGet();
                        } else {
                                totalFailureCount.incrementAndGet();
                                lastFailure.set( System.currentTimeMillis() );
                        }
                        throw e;
                }
                
                return result;
        }

        @Override
        public void tripBreaker() {
                super.tripBreaker();
                tripCount.incrementAndGet();
                lastTrip.set( System.currentTimeMillis() );
        }
        
        @Override
        public void retripBreaker() {
                super.retripBreaker();
                retripCount.incrementAndGet();
                lastRetrip.set( System.currentTimeMillis() );
        }
        
        
        @Override
        public void reset() {
                super.reset();
                lastReset.set( System.currentTimeMillis());
        }

        public int getTripCount() {
                return tripCount.get();
        }
        
        public int getRetripCount() {
                return retripCount.get();
        }

        public int getBlockCount() {
                return blockCount.get();        
        }
        
        public int getTotalFailureCount() {
                return totalFailureCount.get();
        }
        
        public long getLastResetCounters() {
                return lastResetCounters;
        }
        
        public long getLastTrip() {
                return lastTrip.get();
        }
        
        public long getLastRetrip() {
                return lastRetrip.get();
        }

        public long getLastFailure() {
                return lastFailure.get();
        }
        
        public long getLastReset() {
                return lastReset.get();
        }
        
        public int getTotalCallCount() {
                return totalCallCount.get();
        }
        
        public void resetCounters() {
                tripCount.set(0);
                retripCount.set(0);
                blockCount.set(0);
                totalFailureCount.set(0);
                totalCallCount.set(0);
                lastTrip.set(0);
                lastRetrip.set(0);
                lastReset.set(0);
                lastFailure.set(0);
                
                lastResetCounters = System.currentTimeMillis();
        }
        
}
1	torben	467	package dk.thoerup.circuitbreaker;
2	torben	399
3			import java.util.concurrent.atomic.AtomicInteger;
4	torben	460	import java.util.concurrent.atomic.AtomicLong;
5	torben	399
6	torben	1314	import dk.thoerup.circuitbreaker.config.BreakerConfig;
7	torben	1376	import dk.thoerup.circuitbreaker.config.StaticConfig;
8	torben	1314
9	torben	399	public class AccountingCircuitBreaker extends CircuitBreaker {
10
11			private AtomicInteger tripCount = new AtomicInteger(0); // how many times ahs the CB tripped
12	torben	864	private AtomicInteger retripCount = new AtomicInteger(0);
13	torben	399	private AtomicInteger blockCount = new AtomicInteger(0); //how many times has this CB blocked a call that would otherwise go to the backend
14	torben	403	private AtomicInteger totalFailureCount = new AtomicInteger(0); //how many times has the backend thrown an exception
15			private AtomicInteger totalCallCount = new AtomicInteger(0);
16	torben	624
17	torben	460	private AtomicLong lastTrip = new AtomicLong(0);
18	torben	864	private AtomicLong lastRetrip = new AtomicLong(0);
19	torben	621	private AtomicLong lastFailure = new AtomicLong(0);
20	torben	624	private AtomicLong lastReset = new AtomicLong(0);
21
22	torben	404	private long lastResetCounters = 0;
23	torben	400
24	torben	1376	@Deprecated
25			public AccountingCircuitBreaker(String name, int treshold, int timeout) {
26			this(name, new StaticConfig(treshold, timeout) ) ;
27			}
28
29	torben	1314	public AccountingCircuitBreaker(String name, BreakerConfig config) {
30			super(name, config);
31	torben	444
32			resetCounters();
33	torben	399	}
34
35			@Override
36	torben	450	public Object invoke(CircuitInvocation invocation) throws Exception {
37	torben	399	Object result;
38			try {
39	torben	403	totalCallCount.incrementAndGet();
40	torben	399	result = super.invoke(invocation);
41	torben	450	} catch (Exception e) {
42			if (e instanceof CircuitBreakerException) {
43	torben	399	blockCount.incrementAndGet();
44			} else {
45	torben	403	totalFailureCount.incrementAndGet();
46	torben	621	lastFailure.set( System.currentTimeMillis() );
47	torben	399	}
48	torben	450	throw e;
49	torben	399	}
50
51			return result;
52			}
53
54			@Override
55			public void tripBreaker() {
56			super.tripBreaker();
57			tripCount.incrementAndGet();
58	torben	460	lastTrip.set( System.currentTimeMillis() );
59	torben	399	}
60
61	torben	864	@Override
62			public void retripBreaker() {
63			super.retripBreaker();
64			retripCount.incrementAndGet();
65			lastRetrip.set( System.currentTimeMillis() );
66			}
67	torben	624
68
69			@Override
70			public void reset() {
71			super.reset();
72			lastReset.set( System.currentTimeMillis());
73			}
74
75	torben	399	public int getTripCount() {
76			return tripCount.get();
77			}
78
79	torben	864	public int getRetripCount() {
80			return retripCount.get();
81			}
82
83	torben	399	public int getBlockCount() {
84			return blockCount.get();
85			}
86
87	torben	403	public int getTotalFailureCount() {
88			return totalFailureCount.get();
89	torben	399	}
90
91	torben	404	public long getLastResetCounters() {
92			return lastResetCounters;
93	torben	400	}
94
95	torben	460	public long getLastTrip() {
96			return lastTrip.get();
97			}
98
99	torben	864	public long getLastRetrip() {
100			return lastRetrip.get();
101			}
102
103	torben	621	public long getLastFailure() {
104			return lastFailure.get();
105			}
106
107	torben	624	public long getLastReset() {
108			return lastReset.get();
109			}
110
111	torben	403	public int getTotalCallCount() {
112			return totalCallCount.get();
113			}
114
115	torben	399	public void resetCounters() {
116			tripCount.set(0);
117	torben	864	retripCount.set(0);
118	torben	399	blockCount.set(0);
119	torben	403	totalFailureCount.set(0);
120			totalCallCount.set(0);
121	torben	460	lastTrip.set(0);
122	torben	864	lastRetrip.set(0);
123	torben	624	lastReset.set(0);
124	torben	621	lastFailure.set(0);
125	torben	400
126	torben	404	lastResetCounters = System.currentTimeMillis();
127	torben	399	}
128
129			}