using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
public interface IPresentation {
string Title {
get;
}
string Content {
get;
}
}
public class Presentation : IPresentation {
private string title;
public string Title {
get {
return title;
}
}
private string content;
public string Content {
get {
return content;
}
}
public Presentation(string title, string content) {
this.title = title;
this.content = content;
}
}
public class ProcessPresentations<TPresentation, TPresentationManager>
where TPresentation : IPresentation
where TPresentationManager : IPresentationManager<TPresentation> {
public static void Start(TPresentationManager dm) {
new Thread(new ProcessPresentations<TPresentation, TPresentationManager>(dm).Run).Start();
}
protected ProcessPresentations(TPresentationManager dm) {
documentManager = dm;
}
private TPresentationManager documentManager;
protected void Run() {
while (true) {
if (documentManager.IsPresentationAvailable) {
TPresentation doc = documentManager.GetPresentation();
Console.WriteLine("Processing document {0}", doc.Title);
}
Thread.Sleep(20);
}
}
}
public interface IPresentationManager<T> {
void AddPresentation(T doc);
T GetPresentation();
bool IsPresentationAvailable {
get;
}
}
public class PresentationManager<T> : IPresentationManager<T> {
private Queue<T> documentQueue = new Queue<T>();
public void AddPresentation(T doc) {
lock (this) {
documentQueue.Enqueue(doc);
}
}
public T GetPresentation() {
T doc;
lock (this) {
doc = documentQueue.Dequeue();
}
return doc;
}
public bool IsPresentationAvailable {
get {
return (documentQueue.Count > 0) ? true : false;
}
}
}
class Program {
static void Main(string[] args) {
PresentationManager<Presentation> dm = new PresentationManager<Presentation>();
ProcessPresentations<Presentation, PresentationManager<Presentation>>.Start(dm);
for (int i = 0; i < 1000; i++) {
Presentation d1 = new Presentation("title" + i.ToString(), "content");
dm.AddPresentation(d1);
Console.WriteLine("added document {0}", d1.Title);
Thread.Sleep(10);
}
}
}
|
