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Merge pull request #681 from smallrye/observability
Stork observability support
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43 changes: 43 additions & 0 deletions
43
api/src/main/java/io/smallrye/stork/api/observability/NoopObservationCollector.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| package io.smallrye.stork.api.observability; | ||
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| import java.util.List; | ||
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| import io.smallrye.stork.api.ServiceInstance; | ||
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| public class NoopObservationCollector implements ObservationCollector { | ||
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| private static final StorkEventHandler NOOP_HANDLER = ev -> { | ||
| // NOOP | ||
| }; | ||
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| public static final StorkObservation NOOP_STORK_EVENT = new StorkObservation( | ||
| null, null, | ||
| null, NOOP_HANDLER) { | ||
| @Override | ||
| public void onServiceDiscoverySuccess(List<ServiceInstance> instances) { | ||
| // Noop | ||
| } | ||
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| @Override | ||
| public void onServiceDiscoveryFailure(Throwable throwable) { | ||
| // Noop | ||
| } | ||
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| @Override | ||
| public void onServiceSelectionSuccess(long id) { | ||
| // Noop | ||
| } | ||
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| @Override | ||
| public void onServiceSelectionFailure(Throwable throwable) { | ||
| // Noop | ||
| } | ||
| }; | ||
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| @Override | ||
| public StorkObservation create(String serviceName, String serviceDiscoveryType, | ||
| String serviceSelectionType) { | ||
| return NOOP_STORK_EVENT; | ||
| } | ||
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| } |
7 changes: 7 additions & 0 deletions
7
api/src/main/java/io/smallrye/stork/api/observability/ObservationCollector.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| package io.smallrye.stork.api.observability; | ||
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| public interface ObservationCollector { | ||
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| StorkObservation create(String serviceName, String serviceDiscoveryType, String serviceSelectionType); | ||
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| } |
5 changes: 5 additions & 0 deletions
5
api/src/main/java/io/smallrye/stork/api/observability/StorkEventHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| package io.smallrye.stork.api.observability; | ||
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| public interface StorkEventHandler { | ||
| void complete(StorkObservation event); | ||
| } |
117 changes: 117 additions & 0 deletions
117
api/src/main/java/io/smallrye/stork/api/observability/StorkObservation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package io.smallrye.stork.api.observability; | ||
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| import java.time.Duration; | ||
| import java.util.List; | ||
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| import io.smallrye.stork.api.ServiceInstance; | ||
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| public class StorkObservation { | ||
| // Handler / Reporter | ||
| private final StorkEventHandler handler; | ||
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| // Metadata | ||
| private final String serviceName; | ||
| private final String serviceDiscoveryType; | ||
| private final String serviceSelectionType; | ||
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| // Time | ||
| private final long begin; | ||
| private volatile long endOfServiceDiscovery; | ||
| private volatile long endOfServiceSelection; | ||
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| // Service discovery data | ||
| private volatile int instancesCount = -1; | ||
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| // Service selection data | ||
| private volatile long selectedInstanceId = -1L; | ||
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| // Overall status | ||
| private volatile boolean done; | ||
| private volatile boolean serviceDiscoverySuccessful = false; | ||
| private volatile Throwable failure; | ||
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| public StorkObservation(String serviceName, String serviceDiscoveryType, String serviceSelectionType, | ||
| StorkEventHandler handler) { | ||
| this.handler = handler; | ||
| this.serviceName = serviceName; | ||
| this.serviceDiscoveryType = serviceDiscoveryType; | ||
| this.serviceSelectionType = serviceSelectionType; | ||
| this.begin = System.nanoTime(); | ||
| } | ||
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| public void onServiceDiscoverySuccess(List<ServiceInstance> instances) { | ||
| this.endOfServiceDiscovery = System.nanoTime(); | ||
| this.serviceDiscoverySuccessful = true; | ||
| if (instances != null) { | ||
| this.instancesCount = instances.size(); | ||
| } else { | ||
| this.instancesCount = 0; | ||
| } | ||
| } | ||
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| public void onServiceDiscoveryFailure(Throwable throwable) { | ||
| this.endOfServiceDiscovery = System.nanoTime(); | ||
| this.failure = throwable; | ||
| } | ||
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| public void onServiceSelectionSuccess(long id) { | ||
| this.endOfServiceSelection = System.nanoTime(); | ||
| this.selectedInstanceId = id; | ||
| this.done = true; | ||
| this.handler.complete(this); | ||
| } | ||
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| public void onServiceSelectionFailure(Throwable throwable) { | ||
| this.endOfServiceSelection = System.nanoTime(); | ||
| if (failure != throwable) { | ||
| this.failure = throwable; | ||
| } | ||
| this.handler.complete(this); | ||
| } | ||
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| public boolean isDone() { | ||
| return done || failure != null; | ||
| } | ||
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| public Duration getOverallDuration() { | ||
| if (!isDone()) { | ||
| return null; | ||
| } | ||
| return Duration.ofNanos(endOfServiceSelection - begin); | ||
| } | ||
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| public Duration getServiceDiscoveryDuration() { | ||
| return Duration.ofNanos(endOfServiceDiscovery - begin); | ||
| } | ||
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| public Duration getServiceSelectionDuration() { | ||
| if (!isDone()) { | ||
| return null; | ||
| } | ||
| return Duration.ofNanos(endOfServiceSelection - endOfServiceDiscovery); | ||
| } | ||
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| public String getServiceName() { | ||
| return serviceName; | ||
| } | ||
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| public String getServiceDiscoveryType() { | ||
| return serviceDiscoveryType; | ||
| } | ||
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| public String getServiceSelectionType() { | ||
| return serviceSelectionType; | ||
| } | ||
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| public int getDiscoveredInstancesCount() { | ||
| return instancesCount; | ||
| } | ||
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| public Throwable failure() { | ||
| return failure; | ||
| } | ||
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| public boolean isServiceDiscoverySuccessful() { | ||
| return serviceDiscoverySuccessful; | ||
| } | ||
| } |
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17 changes: 17 additions & 0 deletions
17
core/src/main/java/io/smallrye/stork/integration/ObservableStorkInfrastructure.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package io.smallrye.stork.integration; | ||
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| import io.smallrye.stork.api.observability.ObservationCollector; | ||
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| public class ObservableStorkInfrastructure extends DefaultStorkInfrastructure { | ||
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| private final ObservationCollector observationCollector; | ||
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| public ObservableStorkInfrastructure(ObservationCollector observationCollector) { | ||
| this.observationCollector = observationCollector; | ||
| } | ||
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| @Override | ||
| public ObservationCollector getObservationCollector() { | ||
| return observationCollector; | ||
| } | ||
| } |
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