Package org.apache.hadoop.gateway.services.topology.impl

Examples of org.apache.hadoop.gateway.services.topology.impl.DefaultTopologyService.reloadTopologies()

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      provider.init(config, c);


      provider.addTopologyChangeListener(topoListener);

      provider.reloadTopologies();


      Collection<Topology> topologies = provider.getTopologies();
      assertThat(topologies, notNullValue());
      assertThat(topologies.size(), is(1));
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      assertThat(topoListener.events.size(), is(1));
      topoListener.events.clear();

      // Add a file to the directory.
      File two = createFile(dir, "two.xml", "org/apache/hadoop/gateway/topology/file/topology-two.xml", 1L);
      provider.reloadTopologies();
      topologies = provider.getTopologies();
      assertThat(topologies.size(), is(2));
      Set<String> names = new HashSet<String>(Arrays.asList("one", "two"));
      Iterator<Topology> iterator = topologies.iterator();
      topology = iterator.next();
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      assertThat(event.getType(), is(TopologyEvent.Type.CREATED));
      assertThat(event.getTopology(), notNullValue());

      // Update a file in the directory.
      two = createFile(dir, "two.xml", "org/apache/hadoop/gateway/topology/file/topology-three.xml", 2L);
      provider.reloadTopologies();
      topologies = provider.getTopologies();
      assertThat(topologies.size(), is(2));
      names = new HashSet<String>(Arrays.asList("one", "two"));
      iterator = topologies.iterator();
      topology = iterator.next();
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      names.remove(topology.getName());
      assertThat(names.size(), is(0));

      // Remove a file from the directory.
      two.delete();
      provider.reloadTopologies();
      topologies = provider.getTopologies();
      assertThat(topologies.size(), is(1));
      topology = topologies.iterator().next();
      assertThat(topology.getName(), is("one"));
      assertThat(topology.getTimestamp(), is(time));
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