Class: MySQS

Inherits:
Object
  • Object
show all
Defined in:
lib/my_queues/my_sqs.rb

Instance Method Summary collapse

Constructor Details

#initialize(access_key_id, secret_access_key) ⇒ MySQS

Returns a new instance of MySQS.



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# File 'lib/my_queues/my_sqs.rb', line 8

def initialize(access_key_id,secret_access_key)
    SQS.access_key_id = access_key_id
    SQS.secret_access_key = secret_access_key

end

Instance Method Details

#drain(queue_name) ⇒ Object 



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# File 'lib/my_queues/my_sqs.rb', line 75

def drain(queue_name)
    result=[]
    SQS.create_queue queue_name
    while true
        message=recieve_message(queue_name)
        if message
            result<<message 
        else
            return result
        end
    end
end

#recieve_message(queue_name) ⇒ Object 



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# File 'lib/my_queues/my_sqs.rb', line 36

def recieve_message(queue_name)
    queue = SQS.get_queue queue_name
    message=nil

    4.times do |i|
        begin
            message=queue.receive_message
                  
        rescue => e
            s= "#{e.message}\n#{e.backtrace}"
            puts(s)#TODO log WARN to file

            sleep(i*i)
        end
    end
    if block_given?
        
        begin
            yield message
        ensure
            message.delete if message
        end
        return message
    else
        if message    
            message.delete

            if message.body and message.body.length>0 and !message.body.index("undefined")
                return CGI.unescape( message.body)
            end

        
        end

 
        return nil
    end
end

#safe_ruby_string(text) ⇒ Object 



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# File 'lib/my_queues/my_sqs.rb', line 14

def safe_ruby_string text
    return "'"+text.to_s.gsub(/[']/, '\\\\\'')+"'"
end

#send_message(queue_name, message) ⇒ Object 



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# File 'lib/my_queues/my_sqs.rb', line 19

def send_message(queue_name,message)
    queue = SQS.create_queue queue_name
    message=CGI.escape(message)
    16.times do |i|
        begin
            queue.send_message(message)
            return
        rescue => e
            s= "#{e.message}\n#{e.backtrace}"
            puts(s)#TODO log WARN to file
            sleep(i*i)
        end
    end
    # #TODO log ERROR to file
end