Examples with ReservoirTraceStorageStrategy fish.payara.nucleus.requesttracing.store.strategy.ReservoirTraceStorageStrategy used on opensource projects

Example 1 with ReservoirTraceStorageStrategy

use of fish.payara.nucleus.requesttracing.store.strategy.ReservoirTraceStorageStrategy in project Payara by payara.

the class RequestTraceStoreFactory method getStore.

/**
 * Generates a request trace store.
 *
 * @param reservoirSamplingEnabled whether the store should remove items
 * based on a reservoir sampling algorithm.
 * @param historic whether the store is a historic store or not.
 * @return a request trace store.
 */
public static RequestTraceStoreInterface getStore(Events events, boolean reservoirSamplingEnabled, boolean historic) {
    // Get the hazelcast store name for if it's a clustered store.
    String storeName;
    if (historic) {
        storeName = HISTORIC_REQUEST_TRACE_STORE;
    } else {
        storeName = REQUEST_TRACE_STORE;
    }
    // Determines a strategy for adding items to the store
    TraceStorageStrategy strategy;
    if (reservoirSamplingEnabled) {
        strategy = new ReservoirTraceStorageStrategy();
    } else {
        strategy = new LongestTraceStorageStrategy();
    }
    // Get a clustered store if possible
    ClusteredStore clusteredStore = Globals.getDefaultHabitat().getService(ClusteredStore.class);
    if (clusteredStore != null && clusteredStore.isEnabled()) {
        MultiMap<String, RequestTrace> store = (MultiMap) clusteredStore.getMultiMap(storeName);
        return new ClusteredRequestTraceStore(store, clusteredStore.getInstanceId(), strategy);
    }
    // Otherwise get a local store
    return new LocalRequestTraceStore(strategy);
}