Examples of com.fasterxml.clustermate.api.KeyRange

com.fasterxml.clustermate.api.KeyRange
Logical slice of a {@link KeySpace}; a consecutive range of individual key values within value space, defined by two parameters: starting key value (inclusive), and length between 0 and length of {@link KeySpace}.
Instances have natural ordering based on {@link #getStart()}, ascending.

            if (ip == null) {
                throw new IllegalStateException("Missing 'ipAndPort' value for node #"
                        +index+" (out of "+end+")");
            }
            // Range definitions depend on strategy; static or somewhat dynamic...
            KeyRange range;
            
            switch (strategy) {
            case STATIC:
                if (node.keyRangeStart == 0 && node.keyRangeLength == 0) {
                    throw new IllegalStateException("Missing 'keyRangeStart' and/or 'keyRangeLength' for node "

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    protected ActiveNodeState _updatePersistentState(NodeStateStore nodeStore,
            ActiveNodeState localNode,
            NodeDefinition remoteDef, ActiveNodeState remoteNode)
    {
        // The main thing is to see if sync range has changed...
        final KeyRange oldSyncRange = remoteNode.getRangeSync();
        KeyRange newSyncRange = localNode.totalRange().intersection(remoteNode.totalRange());
        
        if (newSyncRange.equals(remoteNode.getRangeSync())) {
            LOG.info("Sync range between local and {} unchanged: {}"
                    ,remoteNode.getAddress(), newSyncRange);
        } else {
            long syncedTo = remoteNode.getSyncedUpTo();
            // only need to reset if expanding...

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        /* Note: while we include things based on passive range, distance
         * should be based on active range; this to make passive range
         * more useful (can catch up with larger passive range; then enable
         * larger range once caught up)
         */
        KeyRange range = getActiveRange();
        int distance = range.clockwiseDistance(keyHash);
        if (isDisabled()) {
            distance += range.getKeyspace().getLength();
        }
        return distance;
    }

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        /* Note: while we include things based on passive range, distance
         * should be based on active range; this to make passive range
         * more useful (can catch up with larger passive range; then enable
         * larger range once caught up)
         */
        KeyRange range = getActiveRange();
        int distance = range.clockwiseDistance(keyHash);
        if (isDisabled()) {
            distance += range.getKeyspace().getLength();
        }
        return distance;
    }

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        try {
            Matcher m = DESC_PATTERN.matcher(ref);
            if (m.matches()) {
                int start = Integer.parseInt(m.group(1));
                int len = Integer.parseInt(m.group(2));
                return new KeyRange(space, start, len);
            }
        } catch (IllegalArgumentException e) { }
        throw new IllegalArgumentException("Invalid KeyRange reference '"+ref+"'");
    }

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        }
        if (newLength < 0 || newLength > _spaceEnd) {
            throw new IllegalArgumentException("Illegal 'newLength' ("+newLength+"): must be [0, "
                    +_spaceEnd+"]");
        }
        return new KeyRange(_keyspace, _start, newLength);
    }

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    public boolean equals(Object o)
    {
        if (o == this) return true;
        if (o == null) return false;
        if (o.getClass() != getClass()) return false;
        KeyRange other = (KeyRange) o;
        // should we compare key space directly? No, should be enough to verify space length:
        return (other._start == _start)
                && (other._length == _length)
                && (other._spaceEnd == _spaceEnd);
    }

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        /* Need to be sure to pass the full range; remote end can do filtering,
         * (to reduce range if need be), but it needs to know full range
         * for initial auto-registration. Although ideally maybe we should
         * pass active and passive separately... has to do, for now.
         */
        final KeyRange syncRange = local.totalRange();
        final ServiceConfig config = _stuff.getServiceConfig();
        JdkHttpClientPathBuilder pathBuilder = new JdkHttpClientPathBuilder(remote.getAddress())
            .addPathSegments(config.servicePathRoot);
        pathBuilder = _path(pathBuilder, PathType.SYNC_LIST);
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_SINCE,
                String.valueOf(syncedUpTo));
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_KEYRANGE_START, String.valueOf(syncRange.getStart()));
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_KEYRANGE_LENGTH, String.valueOf(syncRange.getLength()));
        // this will include 'caller' param:
        pathBuilder = cluster.addClusterStateInfo(pathBuilder);
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_CLUSTER_HASH,
                String.valueOf(lastClusterHash));
        return pathBuilder.toString();

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    }
    
    protected String _buildNodeStatusUpdateUrl(ClusterViewByServerUpdatable cluster, IpAndPort remote,
            String state)
    {
        final KeyRange syncRange = cluster.getLocalState().totalRange();
        JdkHttpClientPathBuilder pathBuilder = new JdkHttpClientPathBuilder(remote)
            .addPathSegments(_stuff.getServiceConfig().servicePathRoot);
        pathBuilder = _path(pathBuilder, PathType.NODE_STATUS);
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_KEYRANGE_START, String.valueOf(syncRange.getStart()));
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_KEYRANGE_LENGTH, String.valueOf(syncRange.getLength()));
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_TIMESTAMP,
                String.valueOf(_stuff.getTimeMaster().currentTimeMillis()));
        pathBuilder = pathBuilder.addParameter(ClusterMateConstants.QUERY_PARAM_STATE, state);
        // this will include 'caller' param:
        pathBuilder = cluster.addClusterStateInfo(pathBuilder);

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            if (ip == null) {
                throw new IllegalStateException("Missing 'ipAndPort' value for node #"
                        +index+" (out of "+end+")");
            }
            // Range definitions depend on strategy; static or somewhat dynamic...
            KeyRange range;
            
            switch (strategy) {
            case STATIC:
                if (node.keyRangeStart == 0 && node.keyRangeLength == 0) {
                    throw new IllegalStateException("Missing 'keyRangeStart' and/or 'keyRangeLength' for node "
                            +index+" (out of "+end+"), when using STATIC cluster type");
                }
                range = _keyspace.range(node.keyRangeStart, node.keyRangeLength);
                break;
            case SIMPLE_LINEAR:
                range = _keyspace.calcSegment(i, nodeCount, copies);
                // sanity check: no empty segments
                if (range.getLength() == 0) {
                    throw new IllegalStateException("Empty range calculated for node "+index+" (of "+nodeCount
                            +" nodes), keyspace="+_keyspace+", "+copies+" copies");
                }
                break;
            case DYNAMIC_WITH_APPEND: // not (yet!) supported

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com.fasterxml.clustermate.api.KeyRange

com.fasterxml.clustermate.api.KeySpace

com.fasterxml.clustermate.client.cluster.ClusterServerNodeImpl

com.fasterxml.clustermate.service.cluster.ActiveNodeState

com.fasterxml.clustermate.service.cluster.ClusterBootstrapper

com.fasterxml.clustermate.service.cluster.ClusterInfoHandler

com.fasterxml.clustermate.service.remote.RemoteClusterStateFetcher$BootstrapState

com.fasterxml.clustermate.service.state.ActiveNodeState

com.fasterxml.clustermate.service.sync.SyncHandler

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