Examples with JDBCExtractionNamespaceCacheFactory io.druid.server.lookup.namespace.JDBCExtractionNamespaceCacheFactory used on opensource projects

Example 1 with JDBCExtractionNamespaceCacheFactory

use of io.druid.server.lookup.namespace.JDBCExtractionNamespaceCacheFactory in project druid by druid-io.

the class JDBCExtractionNamespaceTest method setup.

@Before
public void setup() throws Exception {
    lifecycle = new Lifecycle();
    updates = new AtomicLong(0L);
    updateLock = new ReentrantLock(true);
    closer = Closer.create();
    setupTeardownService = MoreExecutors.listeningDecorator(Execs.multiThreaded(2, "JDBCExtractionNamespaceTeardown--%s"));
    final ListenableFuture<Handle> setupFuture = setupTeardownService.submit(new Callable<Handle>() {

        @Override
        public Handle call() {
            final Handle handle = derbyConnectorRule.getConnector().getDBI().open();
            Assert.assertEquals(0, handle.createStatement(String.format("CREATE TABLE %s (%s TIMESTAMP, %s VARCHAR(64), %s VARCHAR(64))", tableName, tsColumn_, keyName, valName)).setQueryTimeout(1).execute());
            handle.createStatement(String.format("TRUNCATE TABLE %s", tableName)).setQueryTimeout(1).execute();
            handle.commit();
            closer.register(new Closeable() {

                @Override
                public void close() throws IOException {
                    handle.createStatement("DROP TABLE " + tableName).setQueryTimeout(1).execute();
                    final ListenableFuture future = setupTeardownService.submit(new Runnable() {

                        @Override
                        public void run() {
                            handle.close();
                        }
                    });
                    try (Closeable closeable = new Closeable() {

                        @Override
                        public void close() throws IOException {
                            future.cancel(true);
                        }
                    }) {
                        future.get(10, TimeUnit.SECONDS);
                    } catch (InterruptedException | ExecutionException | TimeoutException e) {
                        throw new IOException("Error closing handle", e);
                    }
                }
            });
            closer.register(new Closeable() {

                @Override
                public void close() throws IOException {
                    if (scheduler == null) {
                        return;
                    }
                    Assert.assertEquals(0, scheduler.getActiveEntries());
                }
            });
            for (Map.Entry<String, String> entry : renames.entrySet()) {
                try {
                    insertValues(handle, entry.getKey(), entry.getValue(), "2015-01-01 00:00:00");
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    throw Throwables.propagate(e);
                }
            }
            NoopServiceEmitter noopServiceEmitter = new NoopServiceEmitter();
            scheduler = new CacheScheduler(noopServiceEmitter, ImmutableMap.<Class<? extends ExtractionNamespace>, ExtractionNamespaceCacheFactory<?>>of(JDBCExtractionNamespace.class, new ExtractionNamespaceCacheFactory<JDBCExtractionNamespace>() {

                private final JDBCExtractionNamespaceCacheFactory delegate = new JDBCExtractionNamespaceCacheFactory();

                @Override
                public CacheScheduler.VersionedCache populateCache(final JDBCExtractionNamespace namespace, final CacheScheduler.EntryImpl<JDBCExtractionNamespace> id, final String lastVersion, final CacheScheduler scheduler) throws InterruptedException {
                    updateLock.lockInterruptibly();
                    try {
                        log.debug("Running cache populator");
                        try {
                            return delegate.populateCache(namespace, id, lastVersion, scheduler);
                        } finally {
                            updates.incrementAndGet();
                        }
                    } finally {
                        updateLock.unlock();
                    }
                }
            }), new OnHeapNamespaceExtractionCacheManager(lifecycle, noopServiceEmitter));
            try {
                lifecycle.start();
            } catch (Exception e) {
                throw Throwables.propagate(e);
            }
            closer.register(new Closeable() {

                @Override
                public void close() throws IOException {
                    final ListenableFuture future = setupTeardownService.submit(new Runnable() {

                        @Override
                        public void run() {
                            lifecycle.stop();
                        }
                    });
                    try (final Closeable closeable = new Closeable() {

                        @Override
                        public void close() throws IOException {
                            future.cancel(true);
                        }
                    }) {
                        future.get(30, TimeUnit.SECONDS);
                    } catch (InterruptedException | ExecutionException | TimeoutException e) {
                        throw new IOException("Error stopping lifecycle", e);
                    }
                }
            });
            return handle;
        }
    });
    try (final Closeable closeable = new Closeable() {

        @Override
        public void close() throws IOException {
            if (!setupFuture.isDone() && !setupFuture.cancel(true) && !setupFuture.isDone()) {
                throw new IOException("Unable to stop future");
            }
        }
    }) {
        handleRef = setupFuture.get(10, TimeUnit.SECONDS);
    }
    Assert.assertNotNull(handleRef);
}