Examples with PipelineRegistry org.apache.helix.controller.pipeline.PipelineRegistry used on opensource projects

Example 1 with PipelineRegistry

use of org.apache.helix.controller.pipeline.PipelineRegistry in project helix by apache.

the class GenericHelixController method createDefaultRegistry.

private static PipelineRegistry createDefaultRegistry(String pipelineName) {
    logger.info("createDefaultRegistry");
    synchronized (GenericHelixController.class) {
        PipelineRegistry registry = new PipelineRegistry();
        // cluster data cache refresh
        Pipeline dataRefresh = new Pipeline(pipelineName);
        dataRefresh.addStage(new ReadClusterDataStage());
        // rebalance pipeline
        Pipeline rebalancePipeline = new Pipeline(pipelineName);
        rebalancePipeline.addStage(new ResourceComputationStage());
        rebalancePipeline.addStage(new ResourceValidationStage());
        rebalancePipeline.addStage(new CurrentStateComputationStage());
        rebalancePipeline.addStage(new BestPossibleStateCalcStage());
        rebalancePipeline.addStage(new IntermediateStateCalcStage());
        rebalancePipeline.addStage(new MessageGenerationPhase());
        rebalancePipeline.addStage(new MessageSelectionStage());
        rebalancePipeline.addStage(new MessageThrottleStage());
        rebalancePipeline.addStage(new TaskAssignmentStage());
        rebalancePipeline.addStage(new PersistAssignmentStage());
        rebalancePipeline.addStage(new TargetExteralViewCalcStage());
        // external view generation
        Pipeline externalViewPipeline = new Pipeline(pipelineName);
        externalViewPipeline.addStage(new ExternalViewComputeStage());
        // backward compatibility check
        Pipeline liveInstancePipeline = new Pipeline(pipelineName);
        liveInstancePipeline.addStage(new CompatibilityCheckStage());
        registry.register(ClusterEventType.IdealStateChange, dataRefresh, rebalancePipeline);
        registry.register(ClusterEventType.CurrentStateChange, dataRefresh, rebalancePipeline, externalViewPipeline);
        registry.register(ClusterEventType.InstanceConfigChange, dataRefresh, rebalancePipeline);
        registry.register(ClusterEventType.ResourceConfigChange, dataRefresh, rebalancePipeline);
        registry.register(ClusterEventType.ClusterConfigChange, dataRefresh, rebalancePipeline);
        registry.register(ClusterEventType.LiveInstanceChange, dataRefresh, liveInstancePipeline, rebalancePipeline, externalViewPipeline);
        registry.register(ClusterEventType.MessageChange, dataRefresh, rebalancePipeline);
        registry.register(ClusterEventType.ExternalViewChange, dataRefresh);
        registry.register(ClusterEventType.Resume, dataRefresh, rebalancePipeline, externalViewPipeline);
        registry.register(ClusterEventType.PeriodicalRebalance, dataRefresh, rebalancePipeline, externalViewPipeline);
        return registry;
    }
}