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package dk.thoerup.circuitbreaker; |
package dk.thoerup.circuitbreaker; |
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import java.util.*; |
import java.util.Date; |
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import dk.thoerup.circuitbreaker.notification.*; |
import java.util.LinkedList; |
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import dk.thoerup.circuitbreaker.config.BreakerConfig; |
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@Deprecated |
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public class LoggingCircuitBreaker extends AccountingCircuitBreaker { |
public class LoggingCircuitBreaker extends AccountingCircuitBreaker { |
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private LinkedList<LogEntry> log = new LinkedList<LogEntry>(); |
private LinkedList<LogEntry> log = new LinkedList<LogEntry>(); |
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public class LogEntry { |
public class LogEntry { |
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public long time; |
public long time; |
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public Notifier.Event event; |
public Event event; |
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public int count = 1; |
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public LogEntry(Notifier.Event evnt) { |
public LogEntry(Event evnt) { |
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this.event = evnt; |
this.event = evnt; |
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this.time = System.currentTimeMillis(); |
this.time = System.currentTimeMillis(); |
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} |
} |
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public void newRetrip() {// |
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count++; |
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time = System.currentTimeMillis(); |
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} |
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@Override |
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public String toString() { |
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String str = new Date(time).toString() + (" : ") + event; |
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if (event == Event.BreakerRetripped) { |
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str += ( ", " + count + " re-trips" ); |
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} |
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return str ; |
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} |
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} |
} |
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public LoggingCircuitBreaker(String name, int threshold, long timeoutMS) { |
public LoggingCircuitBreaker(String name, BreakerConfig config) { |
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super(name, threshold, timeoutMS); |
super(name, config); |
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} |
} |
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@Override |
@Override |
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public void tripBreaker() { |
public void tripBreaker() { |
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super.tripBreaker(); |
super.tripBreaker(); |
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addEntry(Notifier.Event.BreakerTripped); |
addEntry(Event.BreakerTripped); |
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} |
} |
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/* don't log retrips - they are not as interesting as trips and resets |
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@Override |
@Override |
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public void retripBreaker() { |
public void retripBreaker() { |
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super.retripBreaker(); |
super.retripBreaker(); |
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addEntry(Notifier.Event.BreakerRetripped); |
addEntry(Event.BreakerRetripped); |
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} |
} |
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*/ |
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@Override |
@Override |
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public void reset() { |
public void reset() { |
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super.reset(); |
super.reset(); |
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addEntry(Notifier.Event.BreakerReset); |
addEntry(Event.BreakerReset); |
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} |
} |
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private void addEntry(Notifier.Event event) { |
private void addEntry(Event event) { |
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synchronized(this) { |
synchronized(this) { |
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log.addFirst( new LogEntry(event) ); |
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if (event != Event.BreakerRetripped ) { |
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log.addFirst( new LogEntry(event) ); //trip and reset are added unconditionally |
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} else { |
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if (log.size() == 0 || log.getFirst().event != Event.BreakerRetripped) { |
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log.addFirst( new LogEntry(event) ); |
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} else { |
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log.getFirst().newRetrip(); |
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} |
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} |
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if(log.size() > maxSize) { |
if(log.size() > maxSize) { |
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log.removeLast(); |
log.removeLast(); |
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} |
} |
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} |
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} |
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public void clearLog() { |
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synchronized(this) { |
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log.clear(); |
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} |
} |
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} |
} |
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