func (w WorkersExecutor) Execute(request *messaging.ServiceRequest) (response messaging.ServiceResponse) {
request.Log("Starting new Service Console Session!")
fmt.Println("Starting new Service Console Session!")
var initialSlice []string
initialSlice = make([]string, 0)
request.MessageStack = initialSlice
response = startAtomicListening(request)
return response
}
func ExecuteThread(msgs <-chan amqp.Delivery, request *messaging.ServiceRequest) {
go func() {
for d := range msgs {
//fmt.Println("---------------------")
//log.Printf("ProcessManager : Received a message: %s", d.Body)
//fmt.Println("----------------------------")
request.Body = d.Body
var tempConf = configuration.ConfigurationManager{}.Get()
var storedServiceConfiguration = configuration.StoreServiceConfiguration{}
storedServiceConfiguration = tempConf
request.Configuration = storedServiceConfiguration
convertedWorkers := getRequiredWorkers(request, d.RoutingKey)
response := startAtomicOperation(request, convertedWorkers)
if response.IsSuccess {
request.Log("Successfully Completed service run!")
request.Log(response.Message)
fmt.Println("Successfully Completed service run!")
fmt.Println(response.Message)
} else {
request.Log("Failed service run!")
request.Log(response.Message)
fmt.Println("Failed service run!")
fmt.Println(response.Message)
}
if request.MessageStack != nil {
response.Stack = request.MessageStack
}
}
}()
}
func startAtomicOperation(request *messaging.ServiceRequest, workerList []AbstractWorkers) (response messaging.ServiceResponse) {
response = messaging.ServiceResponse{}
for _, worker := range workerList {
request.Log("Executing Single Worker : " + worker.GetWorkerName())
fmt.Println("Executing Single Worker : " + worker.GetWorkerName())
tmpResponse := ExecuteSingleWorker(request, worker)
if tmpResponse.IsSuccess {
request.Log("Executing worker : " + worker.GetWorkerName() + " - Success")
response.IsSuccess = true
response.Message = tmpResponse.Message
response.Stack = tmpResponse.Stack
} else {
request.Log("Executing worker : " + worker.GetWorkerName() + " - Failed")
response.IsSuccess = false
response.Message = tmpResponse.Message
response.Stack = tmpResponse.Stack
}
}
return response
}
func startAtomicListening(request *messaging.ServiceRequest) (response messaging.ServiceResponse) {
//conn, err := amqp.Dial("amqp://*****:*****@localhost:5672/")
host := request.Configuration.ServerConfiguration["DuoV6ServiceServer"]["Host"]
port := request.Configuration.ServerConfiguration["DuoV6ServiceServer"]["Port"]
username := request.Configuration.ServerConfiguration["DuoV6ServiceServer"]["UserName"]
password := request.Configuration.ServerConfiguration["DuoV6ServiceServer"]["Password"]
conn, err := amqp.Dial("amqp://" + username + ":" + password + "@" + host + ":" + port + "/")
failOnError(err, "Failed to connect to RabbitMQ")
ch, err := conn.Channel()
failOnError(err, "Failed to open a channel")
//create Exchange track array
var myExchanges []string
myExchanges = make([]string, len(request.Configuration.PublisherConfiguration))
noOfProcesses := getQueueCount(request)
//get no of queues
fmt.Println("No of Processes : " + strconv.Itoa(noOfProcesses))
//create msgs array for that.
var myMsgs []<-chan amqp.Delivery
myMsgs = make([]<-chan amqp.Delivery, noOfProcesses)
//create queues
var myQueues []amqp.Queue
myQueues = make([]amqp.Queue, noOfProcesses)
for x := 0; x < noOfProcesses; x++ {
myQueues[x], err = ch.QueueDeclare(
"", // name
false, // durable
false, // delete when usused
true, // exclusive
false, // no-wait
nil, // arguments
)
failOnError(err, "Failed to declare a queue")
}
var QueueNameArray []string
QueueNameArray = make([]string, noOfProcesses+1)
arrayIndex := 0
for key, _ := range request.Configuration.PublisherConfiguration {
myExchanges[arrayIndex] = key
err = ch.ExchangeDeclare(
key, // name
"direct", // type
true, // durable
false, // auto-deleted
false, // internal
false, // no-wait
nil, // arguments
)
failOnError(err, "Failed to declare an exchange")
for key2, value2 := range request.Configuration.PublisherConfiguration[key] {
if value2.Keys == nil {
QueueNameArray[arrayIndex] = key2
arrayIndex++
} else {
for _, keyValue := range value2.Keys {
// fmt.Println(keyValue)
QueueNameArray[arrayIndex] = key2 + "." + keyValue
arrayIndex++
}
}
}
for x := 0; x < noOfProcesses; x++ {
err = ch.QueueBind(
myQueues[x].Name, // queue name
QueueNameArray[x], // routing key
key, // exchange
false,
nil)
failOnError(err, "Failed to bind a queue")
}
for x := 0; x < noOfProcesses; x++ {
myMsgs[x], err = ch.Consume(
myQueues[x].Name, // queue
"", // consumer
true, // auto ack
false, // exclusive
false, // no local
false, // no wait
nil, // args
)
failOnError(err, "Failed to register a consumer")
}
}
fmt.Print("Running Exchanges : ")
fmt.Println(myExchanges)
fmt.Print("Running Queues : ")
fmt.Println(QueueNameArray)
listExchanges := ""
listQueues := ""
for x := 0; x < len(myExchanges); x++ {
listExchanges += myExchanges[x]
}
for x := 0; x < len(QueueNameArray); x++ {
listQueues += QueueNameArray[x]
}
request.Log("Running Exchanges :")
request.Log(listExchanges)
request.Log("Running Queues :")
request.Log(listQueues)
forever := make(chan bool)
for x := 0; x < noOfProcesses; x++ {
ExecuteThread(myMsgs[x], request)
}
fmt.Println(" [*] Waiting for messages. To exit press CTRL+C")
<-forever
conn.Close()
ch.Close()
return response
}