bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/CheckUtil.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Stopwatch;
  12 import com.google.common.util.concurrent.Uninterruptibles;
  13 import io.netty.util.concurrent.Future;
  14 import java.util.concurrent.CountDownLatch;
  15 import java.util.concurrent.TimeUnit;
  16 import java.util.function.Function;
  17 import org.junit.Assert;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  22 import org.opendaylight.yangtools.yang.binding.DataObject;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24
  25 public final class CheckUtil {
  26     private static final int TIMEOUT = 40;
  27     private static final int LATCH_TIMEOUT = 10;
  28     private static final int SLEEP_FOR = 20;
  29     private static final int SLEEP_UNINTERRUPTIBLY = 50;
  30     public static void checkReceivedMessages(final SimpleSessionListener listener, final int numberOfMessages)
  31         throws ReadFailedException {
  32         Stopwatch sw = Stopwatch.createStarted();
  33         while (sw.elapsed(TimeUnit.SECONDS) <= TIMEOUT) {
  34             if (listener.getListMsg().size() != numberOfMessages) {
  35                 Uninterruptibles.sleepUninterruptibly(SLEEP_UNINTERRUPTIBLY, TimeUnit.MILLISECONDS);
  36             } else {
  37                 return;
  38             }
  39         }
  40         Assert.fail();
  41     }
  42
  43     public static <R, T extends DataObject> R readData(final DataBroker dataBroker, final InstanceIdentifier<T> iid, final Function<T, R> function)
  44         throws ReadFailedException {
  45         AssertionError lastError = null;
  46         final Stopwatch sw = Stopwatch.createStarted();
  47         while (sw.elapsed(TimeUnit.SECONDS) <= TIMEOUT) {
  48             try (final ReadOnlyTransaction tx = dataBroker.newReadOnlyTransaction()) {
  49                 final Optional<T> data = tx.read(LogicalDatastoreType.OPERATIONAL, iid).checkedGet();
  50                 if (data.isPresent()) {
  51                     try {
  52                         return function.apply(data.get());
  53                     } catch (final AssertionError e) {
  54                         lastError = e;
  55                         Uninterruptibles.sleepUninterruptibly(SLEEP_FOR, TimeUnit.MILLISECONDS);
  56                     }
  57                 }
  58             }
  59         }
  60         Assert.fail(lastError.getMessage());
  61         throw lastError;
  62     }
  63
  64     @SuppressWarnings("unchecked")
  65     public static <T extends Future> void waitFutureSuccess(final T future) {
  66         final CountDownLatch latch = new CountDownLatch(1);
  67         future.addListener(future1 -> latch.countDown());
  68         Uninterruptibles.awaitUninterruptibly(latch, LATCH_TIMEOUT, TimeUnit.SECONDS);
  69     }
  70 }