/// <summary>
/// Initialize moduleSpecification from hashtable. Return exception object, if hashtable cannot be converted.
/// Return null, in the success case.
/// </summary>
/// <param name="moduleSpecification">Object to initialize.</param>
/// <param name="hashtable">Contains info about object to initialize.</param>
/// <returns></returns>
internal static Exception ModuleSpecificationInitHelper(ModuleSpecification moduleSpecification, Hashtable hashtable)
{
StringBuilder badKeys = new StringBuilder();
try
{
foreach (DictionaryEntry entry in hashtable)
{
string field = entry.Key.ToString();
if (field.Equals("ModuleName", StringComparison.OrdinalIgnoreCase))
{
moduleSpecification.Name = LanguagePrimitives.ConvertTo <string>(entry.Value);
}
else if (field.Equals("ModuleVersion", StringComparison.OrdinalIgnoreCase))
{
moduleSpecification.Version = LanguagePrimitives.ConvertTo <Version>(entry.Value);
}
else if (field.Equals("RequiredVersion", StringComparison.OrdinalIgnoreCase))
{
moduleSpecification.RequiredVersion = LanguagePrimitives.ConvertTo <Version>(entry.Value);
}
else if (field.Equals("MaximumVersion", StringComparison.OrdinalIgnoreCase))
{
moduleSpecification.MaximumVersion = LanguagePrimitives.ConvertTo <string>(entry.Value);
ModuleCmdletBase.GetMaximumVersion(moduleSpecification.MaximumVersion);
}
else if (field.Equals("GUID", StringComparison.OrdinalIgnoreCase))
{
moduleSpecification.Guid = LanguagePrimitives.ConvertTo <Guid?>(entry.Value);
}
else
{
if (badKeys.Length > 0)
{
badKeys.Append(", ");
}
badKeys.Append("'");
badKeys.Append(entry.Key.ToString());
badKeys.Append("'");
}
}
}
// catch all exceptions here, we are going to report them via return value.
// Example of catched exception: one of conversions to Version failed.
catch (Exception e)
{
return(e);
}
string message;
if (badKeys.Length != 0)
{
message = StringUtil.Format(Modules.InvalidModuleSpecificationMember, "ModuleName, ModuleVersion, RequiredVersion, GUID", badKeys);
return(new ArgumentException(message));
}
if (string.IsNullOrEmpty(moduleSpecification.Name))
{
message = StringUtil.Format(Modules.RequiredModuleMissingModuleName);
return(new MissingMemberException(message));
}
if (moduleSpecification.RequiredVersion == null && moduleSpecification.Version == null && moduleSpecification.MaximumVersion == null)
{
message = StringUtil.Format(Modules.RequiredModuleMissingModuleVersion);
return(new MissingMemberException(message));
}
if (moduleSpecification.RequiredVersion != null && moduleSpecification.Version != null)
{
message = StringUtil.Format(SessionStateStrings.GetContent_TailAndHeadCannotCoexist, "ModuleVersion", "RequiredVersion");
return(new ArgumentException(message));
}
if (moduleSpecification.RequiredVersion != null && moduleSpecification.MaximumVersion != null)
{
message = StringUtil.Format(SessionStateStrings.GetContent_TailAndHeadCannotCoexist, "MaximumVersion", "RequiredVersion");
return(new ArgumentException(message));
}
return(null);
}
