io.vlingo.cluster.model.application.FakeClusterApplicationActor Maven / Gradle / Ivy

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Cluster management for reactive, scalable resiliency of JVM tools and applications running on VLINGO XOOM Actors.
There is a newer version: 1.7.5
// Copyright © 2012-2020 VLINGO LABS. All rights reserved.
//
// This Source Code Form is subject to the terms of the
// Mozilla Public License, v. 2.0. If a copy of the MPL
// was not distributed with this file, You can obtain
// one at https://mozilla.org/MPL/2.0/.

package io.vlingo.cluster.model.application;

import java.util.Collection;

import io.vlingo.cluster.model.attribute.Attribute;
import io.vlingo.cluster.model.attribute.AttributesProtocol;
import io.vlingo.wire.fdx.outbound.ApplicationOutboundStream;
import io.vlingo.wire.message.RawMessage;
import io.vlingo.wire.node.Id;
import io.vlingo.wire.node.Node;

public class FakeClusterApplicationActor extends ClusterApplicationAdapter {
  private AttributesProtocol client;
  private final Node localNode;
  private ApplicationOutboundStream responder;

  public FakeClusterApplicationActor(final Node localNode) {
    this.localNode = localNode;
  }

  @Override
  public void start() {
    logger().debug("APP: ClusterApplication started on node: " + localNode);
  }

  @Override
  public void handleApplicationMessage(final RawMessage message) {
     logger().debug("APP: Received application message: " + message.asTextMessage());
  }

  @Override
  public void informAllLiveNodes(final Collection liveNodes, final boolean isHealthyCluster) {
    for (final Node id : liveNodes) {
       logger().debug("APP: Live node confirmed: " + id);
    }
    printHealthy(isHealthyCluster);
  }

  @Override
  public void informLeaderElected(final Id leaderId, final boolean isHealthyCluster, final boolean isLocalNodeLeading) {
    logger().debug("APP: Leader elected: " + leaderId);
    printHealthy(isHealthyCluster);
    if (isLocalNodeLeading) {
       logger().debug("APP: Local node is leading.");
    }
  }

  @Override
  public void informLeaderLost(final Id lostLeaderId, final boolean isHealthyCluster) {
    logger().debug("APP: Leader lost: " + lostLeaderId);
    printHealthy(isHealthyCluster);
  }

  @Override
  public void informLocalNodeShutDown(final Id nodeId) {
     logger().debug("APP: Local node shut down: " + nodeId);
  }

  @Override
  public void informLocalNodeStarted(final Id nodeId) {
     logger().debug("APP: Local node started: " + nodeId);
  }

  @Override
  public void informNodeIsHealthy(final Id nodeId, final boolean isHealthyCluster) {
    logger().debug("APP: Node reported healthy: " + nodeId);
    printHealthy(isHealthyCluster);
  }

  @Override
  public void informNodeJoinedCluster(final Id nodeId, final boolean isHealthyCluster) {
    logger().debug("APP: " + nodeId + " joined cluster");
    printHealthy(isHealthyCluster);
  }

  @Override
  public void informNodeLeftCluster(final Id nodeId, final boolean isHealthyCluster) {
    logger().debug("APP: " + nodeId + " left cluster");
    printHealthy(isHealthyCluster);
  }

  @Override
  public void informQuorumAchieved() {
    logger().debug("APP: Quorum achieved");
    printHealthy(true);
  }

  @Override
  public void informQuorumLost() {
    logger().debug("APP: Quorum lost");
    printHealthy(false);
  }

  @Override
  public void informResponder(final ApplicationOutboundStream responder) {
    this.responder = responder;
    logger().debug("APP: Informed of responder: " + this.responder);
  }

  @Override
  public void informAttributesClient(final AttributesProtocol client) {
    logger().debug("APP: Attributes Client received.");
    this.client = client;
    if (localNode.id().value() == 1) {
      client.add("fake.set", "fake.attribute.name1", "value1");
      client.add("fake.set", "fake.attribute.name2", "value2");
    }
  }

  @Override
  public void informAttributeSetCreated(final String attributeSetName) {
     logger().debug("APP: Attributes Set Created: " + attributeSetName);
  }

  @Override
  public void informAttributeAdded(final String attributeSetName, final String attributeName) {
    final Attribute attr = client.attribute(attributeSetName, attributeName);
    logger().debug("APP: Attribute Set " + attributeSetName + " Attribute Added: " + attributeName + " Value: " + attr.value);
    if (localNode.id().value() == 1) {
      client.replace("fake.set", "fake.attribute.name1", "value-replaced-2");
      client.replace("fake.set", "fake.attribute.name2", "value-replaced-20");
    }
  }

  @Override
  public void informAttributeRemoved(final String attributeSetName, final String attributeName) {
    final Attribute attr = client.attribute(attributeSetName, attributeName);
    logger().debug("APP: Attribute Set " + attributeSetName + " Attribute Removed: " + attributeName + " Attribute: " + attr);
  }

  @Override
  public void informAttributeSetRemoved(final String attributeSetName) {
    logger().debug("APP: Attributes Set Removed: " + attributeSetName);
  }

  @Override
  public void informAttributeReplaced(final String attributeSetName, final String attributeName) {
    final Attribute attr = client.attribute(attributeSetName, attributeName);
    logger().debug("APP: Attribute Set " + attributeSetName + " Attribute Replaced: " + attributeName + " Value: " + attr.value);
    if (localNode.id().value() == 1) {
      client.remove("fake.set", "fake.attribute.name1");
    }
  }

  private void printHealthy(final boolean isHealthyCluster) {
    if (isHealthyCluster) {
       logger().debug("APP: Cluster is healthy");
    } else {
       logger().debug("APP: Cluster is NOT healthy");
    }
  }
}