diffusion/src/node_modules/services/topic-update/update-constraint-serialiser.js

Diffusion JavaScript client

var Codec = require('io/codec');
var UpdateConstraints = require('topic-update/update-constraint');
var UnconstrainedSerialiser = require('./unconstrained-serialiser');
var ConjunctionSerialiser = require('./conjunction-serialiser');
var BinaryValueSerialiser = require('./binary-value-serialiser');
var NoValueSerialiser = require('./no-value-serialiser');
var LockedSerialiser = require('./locked-serialiser');
var NoTopicSerialiser = require('./no-topic-serialiser');
var PartialJSONSerialiser = require('./partial-json-serialiser');

var ConstraintSerialisers = {
    UNCONSTRAINED: UnconstrainedSerialiser,
    CONJUNCTION: ConjunctionSerialiser,
    BINARY_VALUE: BinaryValueSerialiser,
    NO_VALUE: NoValueSerialiser,
    LOCKED: LockedSerialiser,
    NO_TOPIC: NoTopicSerialiser,
    PARTIAL_JSON: PartialJSONSerialiser
};


var serialiser = {
    write : function(output, constraint) {
        if (constraint.getConstraintType === undefined
            || UpdateConstraints.ConstraintType[constraint.getConstraintType()] === undefined
        ) {
            throw new Error("Unknown constraint type");
        }
        
        Codec.writeByte(output, UpdateConstraints.ConstraintType[constraint.getConstraintType()]);
        ConstraintSerialisers[constraint.getConstraintType()].write(output, constraint, this.write);
    }
};

module.exports = serialiser;