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SignalMessage.swift
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SignalMessage.swift
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//
// SignalMessage.swift
//
// Created by Matt Goodson on 27/06/17.
// Copyright © 2017 Matt Goodson. All rights reserved.
//
import Foundation
class SignalMessage {
var type:String!
var toId:String!
var fromId:String!
var payload:[String:Any]!
init(type:String, fromId:String, toId:String, payload:[String:Any]) {
self.type = type
self.fromId = fromId
self.toId = toId
self.payload = payload
}
init?(json:Any) {
type = ""
fromId = ""
toId = ""
payload = [String:Any]()
do {
guard let j = json as? NSData else {
print("Input data is not valid JSON")
return nil
}
let decoded = try JSONSerialization.jsonObject(with: j as Data, options: [])
if let data = decoded as? [String:Any] {
guard let type = data["type"] as? String else {
print("Invalid message type")
return nil
}
guard let fromId = data["fromId"] as? String else {
print("Invalid fromId")
return nil
}
guard let toId = data["toId"] as? String else {
print("Invalid toId")
return nil
}
guard let payload = data["payload"] as? [String:AnyObject] else {
print("Invalid payload")
return
}
self.type = type
self.fromId = fromId
self.toId = toId
self.payload = payload
}
else {
return nil
}
} catch let error as NSError {
print(error)
return nil
}
}
func toJSON() -> Data? {
let data:[String:Any] = ["type":type, "fromId":fromId, "toId":toId, "payload":payload]
do {
let jsonData:Data = try JSONSerialization.data(withJSONObject: data, options: JSONSerialization.WritingOptions.prettyPrinted)
// here "jsonData" is the dictionary encoded in JSON data
return jsonData;
} catch let error as NSError {
print(error)
}
return nil
}
func printMessage() {
print("\n*******Signal********")
print("Type: ", type)
print("FromId: ", fromId)
print("ToId: ", toId)
print("Payload: ", payload)
print("*********************\n")
}
}