Examples of org.apache.cassandra.gms.VersionedValue$VersionedValueFactory

org.apache.cassandra.gms.VersionedValue
This abstraction represents the state associated with a particular node which an application wants to make available to the rest of the nodes in the cluster. Whenever a piece of state needs to be disseminated to the rest of cluster wrap the state in an instance of ApplicationState and add it to the Gossiper. e.g. if we want to disseminate load information for node A do the following: ApplicationState loadState = new ApplicationState(); Gossiper.instance.addApplicationState("LOAD STATE", loadState);

    }


    /** gets called after a this node joins a cluster */
    public void onAlive(InetAddress endpoint, EndpointState state)
    { 
        VersionedValue value = state.getApplicationState(ApplicationState.SCHEMA);
        if (value != null)
        {
            UUID theirVersion = UUID.fromString(value.value);
            rectify(theirVersion, endpoint);
        }

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        return avg / NUM_CPUS;
    }


    public double getSeverity(InetAddress endpoint)
    {
        VersionedValue event;
        EndpointState state = Gossiper.instance.getEndpointStateForEndpoint(endpoint);
        if (state != null && (event = state.getApplicationState(ApplicationState.SEVERITY)) != null)
            return Double.parseDouble(event.value);
        return 0.0;
    }

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            if (report == -1d)
                report = compaction_severity.get();


            if (!Gossiper.instance.isEnabled())
                return;
            VersionedValue updated = StorageService.instance.valueFactory.severity(report);
            Gossiper.instance.addLocalApplicationState(ApplicationState.SEVERITY, updated);
        }

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        return avg / NUM_CPUS;
    }


    public double getSeverity(InetAddress endpoint)
    {
        VersionedValue event;
        EndpointState state = Gossiper.instance.getEndpointStateForEndpoint(endpoint);
        if (state != null && (event = state.getApplicationState(ApplicationState.SEVERITY)) != null)
            return Double.parseDouble(event.value);
        return 0.0;
    }

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                report = compaction_severity.get();


            if (!Gossiper.instance.isEnabled())
                return;
            report += manual_severity.get(); // add manual severity setting.
            VersionedValue updated = StorageService.instance.valueFactory.severity(report);
            Gossiper.instance.addLocalApplicationState(ApplicationState.SEVERITY, updated);
        }

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    }


    /** gets called after a this node joins a cluster */
    public void onAlive(InetAddress endpoint, EndpointState state)
    { 
        VersionedValue value = state.getApplicationState(ApplicationState.SCHEMA);
        if (value != null)
        {
            UUID theirVersion = UUID.fromString(value.value);
            rectify(theirVersion, endpoint);
        }

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            if (report == -1d)
                report = compaction_severity.get();


            if (!Gossiper.instance.isEnabled())
                return;
            VersionedValue updated = StorageService.instance.valueFactory.severity(report);
            Gossiper.instance.addLocalApplicationState(ApplicationState.SEVERITY, updated);
        }

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        if (localNodeData.dcLocalAddress == null)
            return;
        final EndpointState es = Gossiper.instance.getEndpointStateForEndpoint(FBUtilities.getBroadcastAddress());
        if (es == null)
            return;
        final VersionedValue vv = es.getApplicationState(ApplicationState.INTERNAL_IP);
        if ((vv != null && !vv.value.equals(localNodeData.dcLocalAddress.toString()))
            || vv == null)
        {
            Gossiper.instance.addLocalApplicationState(ApplicationState.INTERNAL_IP,
                StorageService.instance.valueFactory.internalIP(localNodeData.dcLocalAddress.toString()));

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        return avg / NUM_CPUS;
    }


    public double getSeverity(InetAddress endpoint)
    {
        VersionedValue event;
        EndpointState state = Gossiper.instance.getEndpointStateForEndpoint(endpoint);
        if (state != null && (event = state.getApplicationState(ApplicationState.SEVERITY)) != null)
            return Double.parseDouble(event.value);
        return 0.0;
    }

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    }


    /** gets called after a this node joins a cluster */
    public void onAlive(InetAddress endpoint, EndpointState state)
    { 
        VersionedValue value = state.getApplicationState(ApplicationState.SCHEMA);
        if (value != null)
        {
            UUID theirVersion = UUID.fromString(value.value);
            rectify(theirVersion, endpoint);
        }

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