hazelcast-client/lib/PartitionService.js

Hazelcast - open source In-Memory Data Grid - client for NodeJS

"use strict";
var Q = require('q');
var GetPartitionsCodec = require('./codec/GetPartitionsCodec');
var PartitionService = (function () {
    function PartitionService(client) {
        this.client = client;
    }
    PartitionService.prototype.initialize = function () {
        var _this = this;
        var deferred = Q.defer();
        this.refresh().then(function () {
            deferred.resolve(_this);
        });
        return deferred.promise;
    };
    PartitionService.prototype.refresh = function () {
        var _this = this;
        var ownerConnection = this.client.getClusterService().getOwnerConnection();
        var clientMessage = GetPartitionsCodec.encodeRequest();
        return this.client.getInvocationService()
            .invokeOnConnection(ownerConnection, clientMessage)
            .then(function (clientMessage) {
            _this.partitionMap = GetPartitionsCodec.decodeResponse(clientMessage);
            _this.partitionCount = Object.keys(_this.partitionMap).length;
        });
    };
    ;
    PartitionService.prototype.getAddressForPartition = function (partitionId) {
        return this.partitionMap[partitionId];
    };
    PartitionService.prototype.getPartitionId = function (key) {
        var partitionHash;
        if (typeof key === 'object' && 'getPartitionHash' in key) {
            partitionHash = key.getPartitionHash();
        }
        else {
            partitionHash = this.client.getSerializationService().toData(key).getPartitionHash();
        }
        return Math.abs(partitionHash) % this.partitionCount;
    };
    return PartitionService;
}());
module.exports = PartitionService;
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