// Thread code for the producer
public void run()
{
ConfigRecord configRecord = null;
// While not finished, generate a new work item and enqueue it on the PCQueue, output that this producer has
// produced a new item (and what it is called)
while (!Finished)
{
// Lock configuration file and obtain next filename to process
// If there are no filenames left then set filename to null so that nothing is produced
lock (configFile)
{
if (configFile.NextRecord < configFile.configRecords.Count)
{
configRecord = configFile.configRecords[configFile.NextRecord++];
}
else
{
configRecord = null;
}
}
// only queue item if there is a config record to read
if (configRecord != null)
{
// Enqueue a new work item
pcQueue.enqueueItem(new Work(configRecord, IOhandler));
// Output a message to state that this producer has produced a work item
Console.WriteLine("Producer:{0} has created and enqueued Work Item:{1}", id, configRecord.ToString());
}
// Simulate producer activity running for duration milliseconds
Thread.Sleep(duration);
}
// Decrement the number of running producer threads
RunningThreads--;
// Output that this producer has finished
Console.WriteLine("Producer:{0} has finished", id);
}
public Location ReadLocationsFromFileData(ConfigRecord configRecord)
{
// Open the file to read from on the local file system.
// If this file is missing then return immediately from this method.
if (!File.Exists(configRecord.Filename))
{
// Cannot open the file as it does not exist for whatever reason, so return immediately.
return(null);
}
// Open file and load into memory as XML
XDocument xmlDoc = XDocument.Load(configRecord.Filename);
// Create constituency (should only be one in file but retrieve first to be sure)
var con = (from c in xmlDoc.Descendants("Location")
select c).First();
Location constituency = new Location(con.Attribute("name").Value);
// Obtain candidates from this constituency
var cand = from c in con.Descendants("Reading")
select c;
foreach (var c in cand)
{
var temperature = c.Element("temperature").Value;
var humidity = c.Element("humidity").Value;
var date = c.Attribute("date").Value;
var value = Int32.Parse(c.Element("value").Value);
Particulates candidate = new Particulates(temperature, humidity, date, value);
constituency.Particulates.Add(candidate);
}
return(constituency);
}
private ILocationFileReader IOhandler; // Data used when this work is processed - config record
public Work(ConfigRecord data, ILocationFileReader IOhandler) //extra param for IcyclistIO
{
this.configRecord = data; // Data is initialised when the work is instantiated
this.IOhandler = IOhandler;
}
