/// <summary>
/// Invoked whenever there's a new settings object.
/// </summary>
public void Watch(Settings settings)
{
lock (syncLock)
{
if (Log.IsDebugEnabled)
Log.Debug("Watch new settings");
MonitorLocalChanges(settings);
MonitorRemoteChanges(settings);
}
}
private static string AppendHost(this string relativeUrl, Settings settings)
{
var host = HttpContext.Current.Request.IsSecureConnection
? (settings.SslHost ?? settings.Host)
: settings.Host;
if (host == null)
return relativeUrl;
return (host.EndsWith("/") ? host.Substring(0, host.Length - 1) : host) + relativeUrl;
}
private void MonitorRemoteChanges(Settings settings)
{
var dynamicResourcesToWatch = (from rs in settings.ResourceSets
where rs.IsAutoVersion
from resource in rs.Resources
where resource.Mode == ResourceMode.Dynamic
select resource).Distinct().ToList();
lock (currentMonitorInfo)
{
currentMonitorInfo.DynamicResourcesToWatch = dynamicResourcesToWatch;
var localInterval = (settings.LocalChangeMonitorInterval == null ||
settings.LocalChangeMonitorInterval <= 0)
? null
: settings.LocalChangeMonitorInterval*1000L;
currentMonitorInfo.LocalChangeMonitorInterval = localInterval;
var remoteInterval = (settings.RemoteChangeMonitorInterval == null ||
settings.RemoteChangeMonitorInterval <= 0)
? null
: settings.RemoteChangeMonitorInterval*1000L;
currentMonitorInfo.RemoteChangeMonitorInterval = remoteInterval;
}
}
private void MonitorLocalChanges(Settings settings)
{
watchers.ForEach(w => w.Dispose());
watchers.Clear();
var combresConfigPath = HostingEnvironment.MapPath(Configuration.Config.DefinitionUrl);
var staticFilesToWatch = (from rs in settings.ResourceSets
where rs.IsAutoVersion
from resource in rs.Resources
where resource.Mode == ResourceMode.Static
select HostingEnvironment.MapPath(resource.Path))
.Concat(new[] {combresConfigPath}).ToList();
var directoriesToWatch = staticFilesToWatch
.Select(Path.GetDirectoryName).Distinct();
foreach (var directory in directoriesToWatch)
{
var watcher = new FileSystemWatcher
{
Path = directory,
Filter = "*.*",
NotifyFilter = NotifyFilters.LastWrite,
IncludeSubdirectories = false
};
watcher.Changed += (sender, arg) =>
{
if (IsSamePath(arg.FullPath, combresConfigPath))
{
if (Log.IsDebugEnabled)
Log.Debug("OnConfigChanged");
OnChange(ChangeType.Config, null);
}
else
{
var path =
staticFilesToWatch.FirstOrDefault(f => IsSamePath(arg.FullPath, f));
if (path != null)
{
var modifiedResourcePaths = (from rs in settings.ResourceSets
where rs.IsAutoVersion
from resource in rs.Resources
where
resource.Mode == ResourceMode.Static &&
path.Equals(
HostingEnvironment.MapPath(
resource.Path),
StringComparison.
OrdinalIgnoreCase)
select resource.Path).Distinct().ToList();
if (modifiedResourcePaths.Count > 0)
{
if (Log.IsDebugEnabled)
Log.Debug("Static resources change count: " +
modifiedResourcePaths.Count);
OnChange(ChangeType.Resource, modifiedResourcePaths);
}
}
}
};
watcher.EnableRaisingEvents = true;
watchers.Add(watcher);
}
}