Package org.apache.helix.PropertyKey

Examples of org.apache.helix.PropertyKey.Builder.messages()

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    Assert.assertEquals(message.getTgtName(), "localhost_1");

    // round3: remove O->S for localhost_0, controller should now send O->DROPPED to
    // localhost_0
    Builder keyBuilder = accessor.keyBuilder();
    List<String> msgIds = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", msgIds.get(0)));
    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
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    // round1: controller sends O->S to both node0 and node1
    Thread.sleep(1000);

    Builder keyBuilder = accessor.keyBuilder();
    List<String> messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);
    messages = accessor.getChildNames(keyBuilder.messages("localhost_1"));
    Assert.assertEquals(messages.size(), 1);

    // round2: node0 and node1 update current states but not removing messages
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    Thread.sleep(1000);

    Builder keyBuilder = accessor.keyBuilder();
    List<String> messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);
    messages = accessor.getChildNames(keyBuilder.messages("localhost_1"));
    Assert.assertEquals(messages.size(), 1);

    // round2: node0 and node1 update current states but not removing messages
    // controller's rebalance pipeline should be triggered but since messages are not
    // removed
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    setCurrentState(clusterName, "localhost_0", resourceName, resourceName + "_0", "session_0",
        "SLAVE");
    setCurrentState(clusterName, "localhost_1", resourceName, resourceName + "_0", "session_1",
        "SLAVE");
    Thread.sleep(1000);
    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);

    messages = accessor.getChildNames(keyBuilder.messages("localhost_1"));
    Assert.assertEquals(messages.size(), 1);
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        "SLAVE");
    Thread.sleep(1000);
    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);

    messages = accessor.getChildNames(keyBuilder.messages("localhost_1"));
    Assert.assertEquals(messages.size(), 1);

    // round3: node0 removes message and controller's rebalance pipeline should be
    // triggered
    // and sends S->M to node0
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    Assert.assertEquals(messages.size(), 1);

    // round3: node0 removes message and controller's rebalance pipeline should be
    // triggered
    // and sends S->M to node0
    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", messages.get(0)));
    Thread.sleep(1000);

    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);
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    // and sends S->M to node0
    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", messages.get(0)));
    Thread.sleep(1000);

    messages = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    Assert.assertEquals(messages.size(), 1);
    ZNRecord msg =
        accessor.getProperty(keyBuilder.message("localhost_0", messages.get(0))).getRecord();
    String toState = msg.getSimpleField(Attributes.TO_STATE.toString());
    Assert.assertEquals(toState, "MASTER");
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    Assert.assertEquals(message.getTgtName(), "localhost_1");

    // round3: remove O->S for localhost_0, controller should now send O->DROPPED to
    // localhost_0
    Builder keyBuilder = accessor.keyBuilder();
    List<String> msgIds = accessor.getChildNames(keyBuilder.messages("localhost_0"));
    accessor.removeProperty(keyBuilder.message("localhost_0", msgIds.get(0)));
    runPipeline(event, dataRefresh);
    runPipeline(event, rebalancePipeline);
    msgSelOutput = event.getAttribute(AttributeName.MESSAGES_SELECTED.toString());
    messages = msgSelOutput.getMessages(resourceName, new Partition(resourceName + "_0"));
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    if (lastInstances != null) {
      for (String instance : lastInstances.keySet()) {
        if (!curInstances.containsKey(instance)) {
          // remove message listener for disconnected instances
          manager.removeListener(keyBuilder.messages(instance), this);
        }
      }
    }

    for (String session : curSessions.keySet()) {
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      }
      msgMap.put(instanceName, cachedMap);

      // get the current names
      Set<String> messageNames =
          Sets.newHashSet(accessor.getChildNames(keyBuilder.messages(instanceName)));

      long purgeStart = System.currentTimeMillis();
      // clear stale names
      Iterator<String> cachedNamesIter = cachedMap.keySet().iterator();
      while (cachedNamesIter.hasNext()) {
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