public bool Run(string crawlPath, CancellationToken?cancellationToken = null)
{
try
{
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);
crawlPath = FindCrawlDLL <ICrawl>(crawlPath);
var loader = PluginLoader.CreateFromAssemblyFile(
crawlPath,
sharedTypes: new[] { typeof(ICrawl) });
var pluginType = loader
.LoadDefaultAssembly()
.GetTypes()
.Where(t => typeof(ICrawl).IsAssignableFrom(t) && !t.IsAbstract)
.FirstOrDefault();
// This assumes the implementation of IPlugin has a parameterless constructor
ICrawl plugin = (ICrawl)Activator.CreateInstance(pluginType);
bool result = plugin.ScrapeData(cancellationToken);
return(result);
}
catch (Exception ex)
{
_logger.Log(LogLevel.Error, ex, "Plugin run failed");
return(false);
}
}
public void test()
{
try
{
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);
var loaders = new List <PluginLoader>();
// create plugin loaders
var pluginsDir = Path.Combine(Directory.GetCurrentDirectory(), "plugins");
foreach (var dir in DirSearch(pluginsDir))
{
var pluginDll = Path.GetFileName(dir);
var loader = PluginLoader.CreateFromAssemblyFile(
dir,
sharedTypes: new[] { typeof(ICrawl) });
loaders.Add(loader);
}
// Create an instance of plugin types
foreach (var loader in loaders)
{
foreach (var pluginType in loader
.LoadDefaultAssembly()
.GetTypes()
.Where(t => typeof(ICrawl).IsAssignableFrom(t) && !t.IsAbstract))
{
// This assumes the implementation of IPlugin has a parameterless constructor
ICrawl plugin = (ICrawl)Activator.CreateInstance(pluginType);
Console.WriteLine($"Created plugin instance.");
plugin.ScrapeData();
}
}
}
catch (Exception e)
{
}
}
public async Task <bool> Run(PluginRunningParameters pluginRunningParameters, CancellationToken?cancellationToken)
{
try
{
ICrawl crawlPlugin = CreateInstanceOfPlugin <ICrawl>(pluginRunningParameters.CrawlerPluginPath);
crawlPlugin.ScrapeData(cancellationToken);
bool result = false;
if (pluginRunningParameters.IsProcessorAssigned())
{
var productsData = crawlPlugin.GetData();
IProcess processPlugin = CreateInstanceOfPlugin <IProcess>(pluginRunningParameters.ProcessorPluginPath);
result = await processPlugin.ProcessData(pluginRunningParameters.MerchantName, productsData, pluginRunningParameters.ProcessorSaveAction);
}
return(result);
}
catch (Exception ex)
{
_logger.Log(LogLevel.Error, ex, "Plugin run failed");
return(false);
}
}