Examples with LockWatchValueScopingCache com.palantir.atlasdb.keyvalue.api.cache.LockWatchValueScopingCache used on opensource projects

Example 1 with LockWatchValueScopingCache

use of com.palantir.atlasdb.keyvalue.api.cache.LockWatchValueScopingCache in project atlasdb by palantir.

the class LockWatchManagerImpl method create.

public static LockWatchManagerInternal create(MetricsManager metricsManager, Set<Schema> schemas, LockWatchStarter lockWatchingService, LockWatchCachingConfig config) {
    Set<LockWatchReference> referencesFromSchema = schemas.stream().map(Schema::getLockWatches).flatMap(Set::stream).collect(Collectors.toSet());
    Set<TableReference> watchedTablesFromSchema = referencesFromSchema.stream().map(schema -> schema.accept(LockWatchReferencesVisitor.INSTANCE)).collect(Collectors.toSet());
    CacheMetrics metrics = CacheMetrics.create(metricsManager);
    LockWatchEventCache eventCache = LockWatchEventCacheImpl.create(metrics);
    LockWatchValueScopingCache valueCache = LockWatchValueScopingCacheImpl.create(eventCache, metrics, config.cacheSize(), config.validationProbability(), watchedTablesFromSchema);
    return new LockWatchManagerImpl(referencesFromSchema, eventCache, valueCache, lockWatchingService);
}

Example 2 with LockWatchValueScopingCache

use of com.palantir.atlasdb.keyvalue.api.cache.LockWatchValueScopingCache in project atlasdb by palantir.

the class ResilientLockWatchProxyTest method valueCacheProxyAlsoFallsBackOnException.

@Test
public void valueCacheProxyAlsoFallsBackOnException() {
    LockWatchValueScopingCache defaultCache = mock(LockWatchValueScopingCache.class);
    LockWatchValueScopingCache fallbackCache = mock(LockWatchValueScopingCache.class);
    ResilientLockWatchProxy<LockWatchValueScopingCache> proxyFactory = ResilientLockWatchProxy.newValueCacheProxyFactory(fallbackCache, metrics);
    proxyFactory.setDelegate(defaultCache);
    LockWatchValueScopingCache proxyCache = proxyFactory.newValueCacheProxy();
    // Normal operation
    long timestamp = 1L;
    Set<Long> timestamps = ImmutableSet.of(timestamp);
    proxyCache.updateCacheWithCommitTimestampsInformation(timestamps);
    verify(defaultCache).updateCacheWithCommitTimestampsInformation(timestamps);
    verify(fallbackCache, never()).updateCacheWithCommitTimestampsInformation(any());
    // Failure
    when(defaultCache.getTransactionScopedCache(timestamp)).thenThrow(new TransactionFailedNonRetriableException(""));
    assertThatThrownBy(() -> proxyCache.getTransactionScopedCache(timestamp)).isExactlyInstanceOf(TransactionLockWatchFailedException.class);
    verify(defaultCache).getTransactionScopedCache(timestamp);
    // Fallback operation
    proxyCache.processStartTransactions(timestamps);
    verify(fallbackCache).processStartTransactions(timestamps);
    verifyNoMoreInteractions(defaultCache);
    verifyNoMoreInteractions(fallbackCache);
}

Example 3 with LockWatchValueScopingCache

use of com.palantir.atlasdb.keyvalue.api.cache.LockWatchValueScopingCache in project atlasdb by palantir.

the class ResilientLockWatchProxyTest method valueCacheProxyThrowsIfDelegateNotSet.

@Test
public void valueCacheProxyThrowsIfDelegateNotSet() {
    LockWatchValueScopingCache fallbackCache = mock(LockWatchValueScopingCache.class);
    ResilientLockWatchProxy<LockWatchValueScopingCache> proxyFactory = ResilientLockWatchProxy.newValueCacheProxyFactory(fallbackCache, metrics);
    assertThatThrownBy(proxyFactory::newValueCacheProxy).isExactlyInstanceOf(SafeNullPointerException.class).hasMessage("Delegate cache must be set before creating proxy");
}