Examples with Cache com.google.common.cache.Cache used on opensource projects

Example 1 with Cache

use of com.google.common.cache.Cache in project gerrit by GerritCodeReview.

the class CacheModule method cache.

/**
   * Declare a named in-memory cache.
   *
   * @param <K> type of key used to lookup entries.
   * @param <V> type of value stored by the cache.
   * @return binding to describe the cache.
   */
protected <K, V> CacheBinding<K, V> cache(String name, TypeLiteral<K> keyType, TypeLiteral<V> valType) {
    Type type = Types.newParameterizedType(Cache.class, keyType.getType(), valType.getType());
    @SuppressWarnings("unchecked") Key<Cache<K, V>> key = (Key<Cache<K, V>>) Key.get(type, Names.named(name));
    CacheProvider<K, V> m = new CacheProvider<>(this, name, keyType, valType);
    bind(key).toProvider(m).asEagerSingleton();
    bind(ANY_CACHE).annotatedWith(Exports.named(name)).to(key);
    return m.maximumWeight(1024);
}

Example 2 with Cache

use of com.google.common.cache.Cache in project bookkeeper by apache.

the class TestFileInfoBackingCache method testRefCountRace.

@Test
public void testRefCountRace() throws Exception {
    AtomicBoolean done = new AtomicBoolean(false);
    FileInfoBackingCache cache = new FileInfoBackingCache((ledgerId, createIfNotFound) -> {
        File f = new File(baseDir, String.valueOf(ledgerId));
        f.deleteOnExit();
        return f;
    });
    Iterable<Future<Set<CachedFileInfo>>> futures = IntStream.range(0, 2).mapToObj((i) -> {
        Callable<Set<CachedFileInfo>> c = () -> {
            Set<CachedFileInfo> allFileInfos = new HashSet<>();
            while (!done.get()) {
                CachedFileInfo fi = cache.loadFileInfo(1, masterKey);
                Assert.assertFalse(fi.isClosed());
                allFileInfos.add(fi);
                fi.release();
            }
            return allFileInfos;
        };
        return executor.submit(c);
    }).collect(Collectors.toList());
    Thread.sleep(TimeUnit.SECONDS.toMillis(10));
    done.set(true);
    // ensure all threads are finished operating on cache, before checking any
    for (Future<Set<CachedFileInfo>> f : futures) {
        f.get();
    }
    for (Future<Set<CachedFileInfo>> f : futures) {
        for (CachedFileInfo fi : f.get()) {
            Assert.assertTrue(fi.isClosed());
            Assert.assertEquals(FileInfoBackingCache.DEAD_REF, fi.getRefCount());
        }
    }
}

Example 3 with Cache

use of com.google.common.cache.Cache in project metasfresh-webui-api by metasfresh.

the class ADProcessInstancesRepository method createNewProcessInstance0.

/**
 * @param request
 * @param shadowParentDocumentEvaluatee optional shadowParentDocumentEvaluatee which will be
 * @return
 */
private IProcessInstanceController createNewProcessInstance0(@NonNull final CreateProcessInstanceRequest request, @Nullable final IDocumentEvaluatee evalCtx) {
    // 
    // Save process info together with it's parameters and get the the newly created AD_PInstance_ID
    final ProcessInfo processInfo = createProcessInfo(request);
    Services.get(IADPInstanceDAO.class).saveProcessInfo(processInfo);
    final DocumentId adPInstanceId = DocumentId.of(processInfo.getAD_PInstance_ID());
    final Object processClassInstance = processInfo.newProcessClassInstanceOrNull();
    try (final IAutoCloseable c = JavaProcess.temporaryChangeCurrentInstance(processClassInstance)) {
        // 
        // Build the parameters document
        final ProcessDescriptor processDescriptor = getProcessDescriptor(request.getProcessId());
        final DocumentEntityDescriptor parametersDescriptor = processDescriptor.getParametersDescriptor();
        final Document parametersDoc = ADProcessParametersRepository.instance.createNewParametersDocument(parametersDescriptor, adPInstanceId, evalCtx);
        final int windowNo = parametersDoc.getWindowNo();
        // Set parameters's default values
        ProcessDefaultParametersUpdater.newInstance().addDefaultParametersProvider(processClassInstance instanceof IProcessDefaultParametersProvider ? (IProcessDefaultParametersProvider) processClassInstance : null).onDefaultValue((parameter, value) -> parametersDoc.processValueChange(parameter.getColumnName(), value, () -> "default parameter value")).updateDefaultValue(parametersDoc.getFieldViews(), field -> DocumentFieldAsProcessDefaultParameter.of(windowNo, field));
        // 
        // Create (webui) process instance and add it to our internal cache.
        final ADProcessInstanceController pinstance = ADProcessInstanceController.builder().caption(processDescriptor.getCaption()).instanceId(adPInstanceId).parameters(parametersDoc).processClassInstance(processClassInstance).contextSingleDocumentPath(request.getSingleDocumentPath()).viewId(request.getViewRowIdsSelection() != null ? request.getViewRowIdsSelection().getViewId() : null).build();
        processInstances.put(adPInstanceId, pinstance.copyReadonly());
        return pinstance;
    }
}

Example 4 with Cache

use of com.google.common.cache.Cache in project presto by prestodb.

the class AbstractTestParquetReader method testCaching.

@Test
public void testCaching() throws Exception {
    Cache<ParquetDataSourceId, ParquetFileMetadata> parquetFileMetadataCache = CacheBuilder.newBuilder().maximumWeight(new DataSize(1, MEGABYTE).toBytes()).weigher((id, metadata) -> ((ParquetFileMetadata) metadata).getMetadataSize()).expireAfterAccess(new Duration(10, MINUTES).toMillis(), MILLISECONDS).recordStats().build();
    ParquetMetadataSource parquetMetadataSource = new CachingParquetMetadataSource(parquetFileMetadataCache, new MetadataReader());
    try (ParquetTester.TempFile tempFile = new ParquetTester.TempFile("test", "parquet")) {
        Iterable<Integer> values = intsBetween(0, 10);
        Iterator<?>[] readValues = stream(new Iterable<?>[] { values }).map(Iterable::iterator).toArray(size -> new Iterator<?>[size]);
        List<String> columnNames = singletonList("column1");
        List<Type> columnTypes = singletonList(INTEGER);
        writeParquetFileFromPresto(tempFile.getFile(), columnTypes, columnNames, readValues, 10, CompressionCodecName.GZIP);
        testSingleRead(new Iterable<?>[] { values }, columnNames, columnTypes, parquetMetadataSource, tempFile.getFile());
        assertEquals(parquetFileMetadataCache.stats().missCount(), 1);
        assertEquals(parquetFileMetadataCache.stats().hitCount(), 0);
        testSingleRead(new Iterable<?>[] { values }, columnNames, columnTypes, parquetMetadataSource, tempFile.getFile());
        assertEquals(parquetFileMetadataCache.stats().missCount(), 1);
        assertEquals(parquetFileMetadataCache.stats().hitCount(), 1);
        testSingleRead(new Iterable<?>[] { values }, columnNames, columnTypes, parquetMetadataSource, tempFile.getFile());
        assertEquals(parquetFileMetadataCache.stats().missCount(), 1);
        assertEquals(parquetFileMetadataCache.stats().hitCount(), 2);
        parquetFileMetadataCache.invalidateAll();
        testSingleRead(new Iterable<?>[] { values }, columnNames, columnTypes, parquetMetadataSource, tempFile.getFile());
        assertEquals(parquetFileMetadataCache.stats().missCount(), 2);
        assertEquals(parquetFileMetadataCache.stats().hitCount(), 2);
        testSingleRead(new Iterable<?>[] { values }, columnNames, columnTypes, parquetMetadataSource, tempFile.getFile());
        assertEquals(parquetFileMetadataCache.stats().missCount(), 2);
        assertEquals(parquetFileMetadataCache.stats().hitCount(), 3);
    }
}

Example 5 with Cache

use of com.google.common.cache.Cache in project presto by prestodb.

the class StorageModule method createOrcFileTailSource.

@Singleton
@Provides
public OrcFileTailSource createOrcFileTailSource(OrcCacheConfig orcCacheConfig, MBeanExporter exporter) {
    int expectedFileTailSizeInBytes = toIntExact(orcCacheConfig.getExpectedFileTailSize().toBytes());
    boolean dwrfStripeCacheEnabled = orcCacheConfig.isDwrfStripeCacheEnabled();
    OrcFileTailSource orcFileTailSource = new StorageOrcFileTailSource(expectedFileTailSizeInBytes, dwrfStripeCacheEnabled);
    if (orcCacheConfig.isFileTailCacheEnabled()) {
        Cache<OrcDataSourceId, OrcFileTail> cache = CacheBuilder.newBuilder().maximumWeight(orcCacheConfig.getFileTailCacheSize().toBytes()).weigher((id, tail) -> ((OrcFileTail) tail).getTotalSize()).expireAfterAccess(orcCacheConfig.getFileTailCacheTtlSinceLastAccess().toMillis(), TimeUnit.MILLISECONDS).recordStats().build();
        CacheStatsMBean cacheStatsMBean = new CacheStatsMBean(cache);
        orcFileTailSource = new CachingOrcFileTailSource(orcFileTailSource, cache);
        exporter.export(generatedNameOf(CacheStatsMBean.class, connectorId + "_OrcFileTail"), cacheStatsMBean);
    }
    return orcFileTailSource;
}