/// <summary>
/// Return true if a file exists at a specific location within the package.
/// </summary>
/// <param name="relativePath">The package-relative path to the requested file.</param>
/// <returns>True if the package exists.</returns>
/// <exception cref="ArgumentException">Returned if the relativePath is null or empty or
/// is not a relative path.</exception>
public override bool FileExists(string relativePath)
{
if (m_isDisposed)
{
throw new ObjectDisposedException(GetType().Name);
}
// If the package exists, the manifest exists.
if (IsManifest(relativePath))
{
return(true);
}
return(m_spPackageReader.FileExists(relativePath));
}
/// <summary>
/// Validate the basic structure of a package to ensure it is e-learning content. This method does not
/// verify any package details, but rather verifies that the structure of the package indicates it is
/// intended to be e-learning content that can be rendered within MLC.
/// </summary>
/// <param name="packageReader">The package to validate.</param>
/// <returns>The results of validation.</returns>
public static ValidationResults Validate(PackageReader packageReader)
{
ValidatorResources.Culture = LocalizationManager.GetCurrentCulture();
Utilities.ValidateParameterNonNull("packageReader", packageReader);
ValidationResults results = new ValidationResults();
try
{
// If the path does not contain imsmanifest.xml return error result
if (!packageReader.FileExists("imsmanifest.xml"))
{
results.AddResult(new ValidationResult(true, ValidatorResources.ManifestMissing));
}
}
catch (InvalidPackageException e)
{
results.AddResult(new ValidationResult(true, e.Message));
}
return(results);
}