diffusion/src/node_modules/services/topic-update/update-stream-id-serialiser.js

Diffusion JavaScript client

var Codec = require('io/codec');
var UpdateStreamId = require('./update-stream-id');

var serialiser = {
    read : function(input) {
        var topicId = Codec.readInt32(input);
        var instanceId = Codec.readInt32(input);
        var partitionId = Codec.readInt32(input);
        var generationId = Codec.readInt32(input);
        var clustered = (partitionId!==0);
        return new UpdateStreamId(topicId,
                                  instanceId,
                                  clustered,
                                  clustered?(partitionId-1):0,
                                  clustered?generationId:0);
    },
    write : function(output, request) {
        Codec.writeInt32(output, request.topicId);
        Codec.writeInt32(output, request.instanceId);
        if (request.clustered) {
            Codec.writeInt32(output, request.partitionId+1);
            Codec.writeInt32(output, request.generationId);
        } else {
            Codec.writeInt32(output, 0);
            Codec.writeInt32(output, 0);
        }
    }
};

module.exports = serialiser;