internal bool RegisterProvidersViaMetaProvider(IMetaProvider provider, FourPartVersion asmVersion, IHostApi request)
{
var found = false;
var metaProviderName = provider.GetMetaProviderName();
FourPartVersion metaProviderVersion = provider.GetProviderVersion();
if (!_metaProviders.ContainsKey(metaProviderName))
{
// Meta Providers can't be replaced at this point
_metaProviders.AddOrSet(metaProviderName, provider);
}
try {
provider.InitializeProvider(request.As <IRequest>());
var metaProvider = provider;
provider.GetProviderNames().ParallelForEach(name => {
// foreach (var name in provider.GetProviderNames()) {
var instance = metaProvider.CreateProvider(name);
if (instance != null)
{
// check if it's a Package Provider
if (typeof(IPackageProvider).CanDynamicCastFrom(instance))
{
try {
found = found | RegisterPackageProvider(instance.As <IPackageProvider>(), asmVersion, request);
} catch (Exception e) {
e.Dump();
}
}
// check if it's a Services Provider
if (typeof(IArchiver).CanDynamicCastFrom(instance))
{
try {
found = found | RegisterArchiver(instance.As <IArchiver>(), asmVersion, request);
} catch (Exception e) {
e.Dump();
}
}
if (typeof(IDownloader).CanDynamicCastFrom(instance))
{
try {
found = found | RegisterDownloader(instance.As <IDownloader>(), asmVersion, request);
} catch (Exception e) {
e.Dump();
}
}
}
});
} catch (Exception e) {
e.Dump();
}
return(found);
}
private Downloader RegisterDownloader(IDownloader provider, FourPartVersion asmVersion, IHostApi request)
{
string name = null;
try {
FourPartVersion ver = provider.GetProviderVersion();
var version = ver == 0 ? asmVersion : ver;
name = provider.GetDownloaderName();
if (string.IsNullOrWhiteSpace(name))
{
return(null);
}
// Initialize the provider before locking the collection
// that way we're not blocking others on non-deterministic actions.
request.Debug("Initializing provider '{0}'".format(name));
provider.InitializeProvider(request.As <IRequest>());
request.Debug("Provider '{0}' Initialized".format(name));
lock (Downloaders) {
if (Downloaders.ContainsKey(name))
{
if (version > Downloaders[name].Version)
{
// remove the old provider first.
// todo: this won't remove the plugin domain and unload the code yet
// we'll have to do that later.
Downloaders.Remove(name);
}
else
{
return(null);
}
}
request.Debug("Using Downloader Provider {0}".format(name));
var downloader = new Downloader(provider)
{
Version = version
};
downloader.Initialize(request);
Downloaders.AddOrSet(name, downloader);
return(downloader);
}
} catch (Exception e) {
request.Debug("Provider '{0}' Failed".format(name));
e.Dump();
}
return(null);
}
internal bool RegisterProvidersViaMetaProvider(IMetaProvider provider, FourPartVersion asmVersion, IHostApi request)
{
var found = false;
var metaProviderName = provider.GetMetaProviderName();
lock (_metaProviders)
{
if (!_metaProviders.ContainsKey(metaProviderName))
{
// Meta Providers can't be replaced at this point
_metaProviders.AddOrSet(metaProviderName, provider);
}
}
try {
provider.InitializeProvider(request.As <IRequest>());
provider.GetProviderNames().ParallelForEach(name => {
found = LoadViaMetaProvider(provider, name, asmVersion, request);
});
} catch (Exception e) {
e.Dump();
}
return(found);
}
private bool RegisterDownloader(IDownloader provider, FourPartVersion asmVersion, IHostApi request)
{
try {
FourPartVersion ver = provider.GetProviderVersion();
var version = ver == 0 ? asmVersion : ver;
var name = provider.GetDownloaderName();
lock (Downloaders) {
if (Downloaders.ContainsKey(name))
{
if (version > Downloaders[name].Version)
{
// remove the old provider first.
// todo: this won't remove the plugin domain and unload the code yet
// we'll have to do that later.
Downloaders.Remove(name);
}
else
{
return(false);
}
}
request.Debug("Loading Downloader {0}".format(name, provider.GetDownloaderName()));
provider.InitializeProvider(request.As <IRequest>());
Downloaders.AddOrSet(name, new Downloader(provider)
{
Version = version
}).Initialize(request);
}
return(true);
} catch (Exception e) {
e.Dump();
}
return(false);
}
private PackageProvider RegisterPackageProvider(IPackageProvider provider, string name, FourPartVersion asmVersion, IHostApi request) {
// string name = null;
try {
FourPartVersion ver = provider.GetProviderVersion();
var version = ver == 0 ? asmVersion : ver;
//TODO: Need to write a blog file name is the provider name. Provider is no longer required to impl ProvierName property
//name = provider.GetPackageProviderName();
//if (String.IsNullOrWhiteSpace(name)) {
// return null;
//}
// Initialize the provider before locking the collection
// that way we're not blocking others on non-deterministic actions.
request.Debug("Initializing provider '{0}'".format(name));
provider.InitializeProvider(request.As<IRequest>());
request.Debug("Provider '{0}' Initialized".format(name));
lock (_packageProviders) {
if (_packageProviders.ContainsKey(name)) {
if (version > _packageProviders[name].Version) {
// remove the old provider first.
// todo: this won't remove the plugin domain and unload the code yet
// we'll have to do that later.
_packageProviders.Remove(name);
} else {
return null;
}
}
}
request.Debug("Using Package Provider {0}".format(name));
var packageProvider = new PackageProvider(provider) {
Version = version,
IsLoaded = true
};
packageProvider.Initialize(request);
// addOrSet locks the collection anyway.
_packageProviders.AddOrSet(name, packageProvider);
return packageProvider;
} catch (Exception e) {
request.Debug("Provider '{0}' Failed".format(name));
e.Dump();
}
return null;
}
private PackageProvider ImportProvider(IHostApi request, string providerName, IMetaProvider powerShellMetaProvider)
{
//foreach (var providerName in providers)
{
//var matchedProviderName = provider.As<DefaultPackageProvider>().GetPackageProviderName();
//TODO pass in Maxi, mini, and requiredVersion to LoadAvailableProvider
var instance = powerShellMetaProvider.LoadAvailableProvider(request.As<IRequest>(), providerName);
if (instance == null)
{
return null;
}
//Register newly created provider
if (typeof(IPackageProvider).CanDynamicCastFrom(instance))
{
var packageProvider = RegisterPackageProvider(instance.As<IPackageProvider>(), providerName, String.Empty, request);
if (packageProvider != null)
{
packageProvider.ProviderPath = powerShellMetaProvider.GetProviderPath(providerName);
return packageProvider;
}
}
else
{
//A provider is not found
request.Error(Constants.Messages.UnknownProvider, ErrorCategory.InvalidOperation.ToString(),
providerName, request.FormatMessageString(Constants.Messages.UnknownProvider, providerName));
}
}
}
/// <summary>
/// Get available provider if -ListAvailable present;load a provider specified in providerName.
/// </summary>
/// <param name="request"></param>
/// <param name="providerName">provider to be loaded.</param>
/// <param name="powerShellMetaProvider"></param>
private IEnumerable<PackageProvider> GetAvailableProvider(IHostApi request, string providerName, IMetaProvider powerShellMetaProvider)
{
var results = _packageProviders.Values.Where(each => each.ProviderName.IsWildcardMatch(providerName)).ReEnumerable();
if (results.Any()) {
//the provider is already loaded and tracked in the loaded master list: _packageProviders
yield break;
}
//Get available powershell providers
var availableProviders = powerShellMetaProvider.GetAvailableLocallyProviders(request.As<IRequest>()).ReEnumerable();
if (!availableProviders.Any()) {
//No available providers.
if (!String.IsNullOrWhiteSpace(providerName)) {
//Error out if a user specific -Name
request.Error(Constants.Messages.UnknownProvider, ErrorCategory.InvalidOperation.ToString(),
providerName, request.FormatMessageString(Constants.Messages.UnknownProvider, providerName));
}
yield break;
}
if (String.IsNullOrWhiteSpace(providerName)) {
// "-Name" does not exist, we return all we can find
foreach (var module in availableProviders) {
yield return new PackageProvider(module.As<DefaultPackageProvider>());
}
} else {
//A user inputs both -Name and -ListAvailable
var matches = powerShellMetaProvider.GetProviderNames().Where(each => each.IsWildcardMatch(providerName)).ReEnumerable();
if (!matches.Any()) {
request.Error(Constants.Messages.UnknownProvider, ErrorCategory.InvalidOperation.ToString(),
providerName, request.FormatMessageString(Constants.Messages.UnknownProvider, providerName));
}
foreach (var match in matches) {
yield return new PackageProvider(powerShellMetaProvider.GetAvailableLocallyProvider(match).As<DefaultPackageProvider>());
//yield return new PackageProvider(availableProviders[match].As<DefaultPackageProvider>());
}
}
}
internal bool RegisterProvidersViaMetaProvider(IMetaProvider provider, FourPartVersion asmVersion, IHostApi request) {
var found = false;
var metaProviderName = provider.GetMetaProviderName();
lock (_metaProviders) {
if (!_metaProviders.ContainsKey(metaProviderName)) {
// Meta Providers can't be replaced at this point
_metaProviders.AddOrSet(metaProviderName.ToLowerInvariant(), provider);
}
}
try {
provider.InitializeProvider(request.As<IRequest>());
provider.GetProviderNames().ParallelForEach(name => {
found = LoadViaMetaProvider(provider, name,asmVersion, request);
});
} catch (Exception e) {
e.Dump();
}
return found;
}
private Downloader RegisterDownloader(IDownloader provider, FourPartVersion asmVersion, IHostApi request) {
string name = null;
try {
FourPartVersion ver = provider.GetProviderVersion();
var version = ver == 0 ? asmVersion : ver;
name = provider.GetDownloaderName();
if (String.IsNullOrWhiteSpace(name)) {
return null;
}
// Initialize the provider before locking the collection
// that way we're not blocking others on non-deterministic actions.
request.Debug("Initializing provider '{0}'".format(name));
provider.InitializeProvider(request.As<IRequest>());
request.Debug("Provider '{0}' Initialized".format(name));
lock (Downloaders) {
if (Downloaders.ContainsKey(name)) {
if (version > Downloaders[name].Version) {
// remove the old provider first.
// todo: this won't remove the plugin domain and unload the code yet
// we'll have to do that later.
Downloaders.Remove(name);
} else {
return null;
}
}
request.Debug("Using Downloader Provider {0}".format(name));
var downloader = new Downloader(provider) {
Version = version,
IsLoaded = true
};
downloader.Initialize(request);
Downloaders.AddOrSet(name, downloader);
return downloader;
}
} catch (Exception e) {
request.Debug("Provider '{0}' Failed".format(name));
e.Dump();
}
return null;
}
private IEnumerable<PackageProvider> ImportPowerShellProvider(IHostApi request, string modulePath, Version requiredVersion, bool shouldRefreshCache)
{
request.Debug(string.Format(CultureInfo.CurrentCulture, "Calling ImportPowerShellProvider. providerName = '{0}', requiredVersion='{1}'",
modulePath, requiredVersion));
var powerShellMetaProvider = GetMetaProviderObject(request);
if (powerShellMetaProvider == null) {
yield break;
}
//providerName can be a file path or name.
var instances = powerShellMetaProvider.LoadAvailableProvider(request.As<IRequest>(), modulePath, requiredVersion, shouldRefreshCache).ReEnumerable();
if (!instances.Any()) {
//A provider is not found
request.Error(Constants.Messages.UnknownProvider, ErrorCategory.InvalidOperation.ToString(),
modulePath, string.Format(Resources.Messages.UnknownProvider, modulePath));
yield break;
}
foreach (var instance in instances) {
//Register the provider
var provider = instance.As<PackageProvider>();
if (provider != null) {
//initialize the actual powershell package provider
if (provider.Provider == null) {
continue;
}
provider.Provider.InitializeProvider(request.As<IRequest>());
AddToProviderCacheTable(provider.ProviderName, provider);
//initialize the warpper package provider
provider.Initialize(request);
// addOrSet locks the collection anyway.
_packageProviders.AddOrSet(provider.ProviderName, provider);
yield return provider;
}
}
}
private void ScanForAvailableProviders(IHostApi request,
string providerName,
Version requiredVersion,
Version minimumVersion,
Version maximumVersion,
bool shouldRefreshCache = false) {
ResetProviderCachetable();
//search assemblies from the well-known locations and update the internal provider cache table
var providerAssemblies = ScanAllProvidersFromProviderAssembliesLocation(request, providerName, requiredVersion, minimumVersion, maximumVersion, ProviderOption.AllProvider).ToArray();
//find out which one are from root directory. Because we cannot tell its version and provider name
//we need to load it.
var files = providerAssemblies.Where(each => ProviderAssembliesLocation.ContainsIgnoreCase(Path.GetDirectoryName(each))).ReEnumerable();
//after the cache table gets cleaned, we need to load these assemblies sitting at the top level folder
files.ParallelForEach(providerAssemblyName => {
lock (_providerFiles) {
if (_providerFiles.ContainsKey(providerAssemblyName)) {
//remove the same file from the _providerFiles if any, so it gets reentered
//to the cache table.
_providerFiles.Remove(providerAssemblyName);
}
}
LoadProviderAssembly(request, providerAssemblyName, false);
});
var powerShellMetaProvider = GetMetaProviderObject(request);
if (powerShellMetaProvider == null) {
return;
}
//Get available powershell providers
powerShellMetaProvider.RefreshProviders(request.As<IRequest>(), providerName, requiredVersion, minimumVersion, maximumVersion);
}
/// <summary>
/// Register the package provider
/// </summary>
/// <param name="provider">Package provider object</param>
/// <param name="asmVersion">assembly version info</param>
/// <param name="request"></param>
/// <param name="shouldRefreshCache">should refresh the internal provider list</param>
/// <returns></returns>
private PackageProvider RegisterPackageProvider(IPackageProvider provider,
FourPartVersion asmVersion,
IHostApi request,
bool shouldRefreshCache) {
string name = null;
try {
if (provider == null) {
return null;
}
FourPartVersion ver = provider.GetProviderVersion();
var version = ver == 0 ? asmVersion : ver;
name = provider.GetPackageProviderName();
if (string.IsNullOrWhiteSpace(name)) {
return null;
}
// Initialize the provider before locking the collection
// that way we're not blocking others on non-deterministic actions.
request.Debug("Initializing provider '{0}'".format(name));
provider.InitializeProvider(request.As<IRequest>());
request.Debug("Provider '{0}' Initialized".format(name));
lock (_packageProviders) {
//Check if the provider is loaded already.
if (_packageProviders.ContainsKey(name)) {
//if no -force, do nothing
if (!shouldRefreshCache) {
request.Verbose(string.Format(CultureInfo.CurrentCulture, Resources.Messages.SkipPreviousProcessedProvider, name));
//add the provider to the list
var pkgprovider = new PackageProvider(provider) {
Version = version,
IsLoaded = true
};
AddToProviderCacheTable(name, pkgprovider);
return pkgprovider;
} else {
//looks like -force is used, we need to remove the old provider first.
// this won't remove the plugin domain and unload the code yet
_packageProviders.Remove(name);
}
}
}
request.Debug("Using Package Provider {0}".format(name));
var packageProvider = new PackageProvider(provider) {
Version = version
};
//initialize the package provider
packageProvider.Initialize(request);
// addOrSet locks the collection anyway.
_packageProviders.AddOrSet(name, packageProvider);
packageProvider.IsLoaded = true;
request.Debug("The provider '{0}' is imported".format(name));
//add the provider to the list
AddToProviderCacheTable(name, packageProvider);
return packageProvider;
} catch (Exception e) {
request.Debug("Provider '{0}' Failed to import".format(name));
e.Dump();
}
return null;
}
