Examples with ExecutionError com.google.common.util.concurrent.ExecutionError used on opensource projects

Example 1 with ExecutionError

use of com.google.common.util.concurrent.ExecutionError in project caffeine by ben-manes.

the class CacheLoadingTest method testLoadError.

public void testLoadError() throws ExecutionException {
    Error e = new Error();
    CacheLoader<Object, Object> loader = errorLoader(e);
    LoadingCache<Object, Object> cache = CaffeinatedGuava.build(Caffeine.newBuilder().recordStats().executor(MoreExecutors.directExecutor()), loader);
    CacheStats stats = cache.stats();
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.get(new Object());
        fail();
    } catch (ExecutionError expected) {
        assertSame(e, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(1, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.getUnchecked(new Object());
        fail();
    } catch (ExecutionError expected) {
        assertSame(e, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(2, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    cache.refresh(new Object());
    checkLoggedCause(e);
    stats = cache.stats();
    assertEquals(2, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(3, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    final Error callableError = new Error();
    try {
        cache.get(new Object(), new Callable<Object>() {

            @Override
            public Object call() {
                throw callableError;
            }
        });
        fail();
    } catch (ExecutionError expected) {
        assertSame(callableError, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(3, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(4, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.getAll(asList(new Object()));
        fail();
    } catch (ExecutionError expected) {
        assertSame(e, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(4, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(5, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
}

Example 2 with ExecutionError

use of com.google.common.util.concurrent.ExecutionError in project guava by google.

the class AbstractLoadingCacheTest method testGetUnchecked_error.

public void testGetUnchecked_error() {
    final Error cause = new Error();
    final AtomicReference<Object> valueRef = new AtomicReference<>();
    LoadingCache<Object, Object> cache = new AbstractLoadingCache<Object, Object>() {

        @Override
        public Object get(Object key) throws ExecutionException {
            Object v = valueRef.get();
            if (v == null) {
                throw new ExecutionError(cause);
            }
            return v;
        }

        @Override
        public Object getIfPresent(Object key) {
            return valueRef.get();
        }
    };
    try {
        cache.getUnchecked(new Object());
        fail();
    } catch (ExecutionError expected) {
        assertThat(expected).hasCauseThat().isEqualTo(cause);
    }
    Object newValue = new Object();
    valueRef.set(newValue);
    assertSame(newValue, cache.getUnchecked(new Object()));
}

Example 3 with ExecutionError

use of com.google.common.util.concurrent.ExecutionError in project guava by google.

the class CacheLoadingTest method testBulkLoadError.

public void testBulkLoadError() throws ExecutionException {
    Error e = new Error();
    CacheLoader<Object, Object> loader = errorLoader(e);
    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().recordStats().build(bulkLoader(loader));
    CacheStats stats = cache.stats();
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.getAll(asList(new Object()));
        fail();
    } catch (ExecutionError expected) {
        assertThat(expected).hasCauseThat().isSameInstanceAs(e);
    }
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(1, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
}

Example 4 with ExecutionError

use of com.google.common.util.concurrent.ExecutionError in project guava by google.

the class LocalCache method loadAll.

/**
 * Returns the result of calling {@link CacheLoader#loadAll}, or null if {@code loader} doesn't
 * implement {@code loadAll}.
 */
@Nullable
Map<K, V> loadAll(Set<? extends K> keys, CacheLoader<? super K, V> loader) throws ExecutionException {
    checkNotNull(loader);
    checkNotNull(keys);
    Stopwatch stopwatch = Stopwatch.createStarted();
    Map<K, V> result;
    boolean success = false;
    try {
        // safe since all keys extend K
        @SuppressWarnings("unchecked") Map<K, V> map = (Map<K, V>) loader.loadAll(keys);
        result = map;
        success = true;
    } catch (UnsupportedLoadingOperationException e) {
        success = true;
        throw e;
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new ExecutionException(e);
    } catch (RuntimeException e) {
        throw new UncheckedExecutionException(e);
    } catch (Exception e) {
        throw new ExecutionException(e);
    } catch (Error e) {
        throw new ExecutionError(e);
    } finally {
        if (!success) {
            globalStatsCounter.recordLoadException(stopwatch.elapsed(NANOSECONDS));
        }
    }
    if (result == null) {
        globalStatsCounter.recordLoadException(stopwatch.elapsed(NANOSECONDS));
        throw new InvalidCacheLoadException(loader + " returned null map from loadAll");
    }
    stopwatch.stop();
    // TODO(fry): batch by segment
    boolean nullsPresent = false;
    for (Entry<K, V> entry : result.entrySet()) {
        K key = entry.getKey();
        V value = entry.getValue();
        if (key == null || value == null) {
            // delay failure until non-null entries are stored
            nullsPresent = true;
        } else {
            put(key, value);
        }
    }
    if (nullsPresent) {
        globalStatsCounter.recordLoadException(stopwatch.elapsed(NANOSECONDS));
        throw new InvalidCacheLoadException(loader + " returned null keys or values from loadAll");
    }
    // TODO(fry): record count of loaded entries
    globalStatsCounter.recordLoadSuccess(stopwatch.elapsed(NANOSECONDS));
    return result;
}

Example 5 with ExecutionError

use of com.google.common.util.concurrent.ExecutionError in project guava by hceylan.

the class CacheLoadingTest method testLoadError.

public void testLoadError() throws ExecutionException {
    Error e = new Error();
    CacheLoader<Object, Object> loader = errorLoader(e);
    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().build(loader);
    CacheStats stats = cache.stats();
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.get(new Object());
        fail();
    } catch (ExecutionError expected) {
        assertSame(e, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(1, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(1, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.getUnchecked(new Object());
        fail();
    } catch (ExecutionError expected) {
        assertSame(e, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(2, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(2, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    cache.refresh(new Object());
    checkLoggedCause(e);
    stats = cache.stats();
    assertEquals(2, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(3, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    final Error callableError = new Error();
    try {
        cache.get(new Object(), new Callable<Object>() {

            @Override
            public Object call() {
                throw callableError;
            }
        });
        fail();
    } catch (ExecutionError expected) {
        assertSame(callableError, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(3, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(4, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
    try {
        cache.getAll(asList(new Object()));
        fail();
    } catch (ExecutionError expected) {
        assertSame(e, expected.getCause());
    }
    stats = cache.stats();
    assertEquals(4, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(5, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());
}