///////////////////////////////////////////////////////////////////////////////
// Description: Gets the target part of a relationship with the 'Internal' target mode.
///////////////////////////////////////////////////////////////////////////////
private static void GetRelationshipTargetPart(IOpcPartSet partSet, // Set of the parts in the package.
IOpcRelationship relationship, // Relationship that targets the required part.
string expectedContentType, // Content type expected for the target part.
out IOpcPart targetPart // Recieves pointer to target part. Method may return a valid
// pointer even on failure, and the caller must always release if a non-default value is returned.
)
{
targetPart = null;
OPC_URI_TARGET_MODE targetMode = relationship.GetTargetMode();
if (targetMode != OPC_URI_TARGET_MODE.OPC_URI_TARGET_MODE_INTERNAL)
{
// The relationship's target is not a part.
var relationshipType = relationship.GetRelationshipType();
Console.Error.Write("Invalid music bundle package: relationship with type {0} must have Internal target mode.\n", relationshipType);
// Set the return code to an error.
throw new InvalidOperationException();
}
// Relationship's target is a part; the target mode is 'Internal'.
// Get the URI of the relationship source.
IOpcUri sourceUri = relationship.GetSourceUri();
// Get the URI of the relationship target.
IUri targetUri = relationship.GetTargetUri();
// Resolve the target URI to the part name of the target part.
IOpcPartUri targetPartUri = sourceUri.CombinePartUri(targetUri);
// Check that a part with the resolved part name exists in the part set.
var partExists = partSet.PartExists(targetPartUri);
if (!partExists)
{
// The part does not exist in the part set.
Console.Error.Write("Invalid music bundle package: the target part of relationship does not exist.\n");
// Set the return code to an error.
throw new InvalidOperationException();
}
// Get the part.
targetPart = partSet.GetPart(targetPartUri);
// Get the content type of the part.
var contentType = targetPart.GetContentType();
if (contentType != expectedContentType)
{
// Content type of the part did not match the expected content type.
Console.Error.Write("Invalid music bundle package: the target part does not have correct content type.\n");
// Set the return code to an error.
throw new InvalidOperationException();
}
}
//-------------------------------------
// Production helper methods.
///////////////////////////////////////////////////////////////////////////////
// Description: Adds the Album Art part to the package and creates a package relationship to that has the Album Art part as its target.
///////////////////////////////////////////////////////////////////////////////
private static void AddAlbumArtToBundle(IOpcFactory opcFactory,
IOpcPartSet packagePartSet, // Represents the set of parts (excluding Relationships parts) in a package.
IOpcRelationshipSet packageRelationshipSet, // Represents the Relationships part that stores package relationships.
string inputDirectory // Directory location of the files specified in trackName and lyricsName.
)
{
// Add Album Art part.
AddPartToBundle(opcFactory, g_albumArt, packagePartSet, g_albumArtContentType, OPC_COMPRESSION_OPTIONS.OPC_COMPRESSION_NONE, inputDirectory, out IOpcPartUri albumArtPartUri, out _);
// Add a package relationship that has the Album Art part as its target.
packageRelationshipSet.CreateRelationship(default, // Use auto-generated relationship ID.
public void LoadTest()
{
Assert.That(factory.CreateStreamOnFile(TestCaseSources.WordDoc, OPC_STREAM_IO_MODE.OPC_STREAM_IO_READ, null, 0, out var sourceFileStream), ResultIs.Successful);
using var psourceFileString = ComReleaserFactory.Create(sourceFileStream);
Assert.That(factory.ReadPackageFromStream(sourceFileStream, OPC_READ_FLAGS.OPC_CACHE_ON_ACCESS, out var outPackage), ResultIs.Successful);
using var poutPackage = ComReleaserFactory.Create(outPackage);
IOpcPartSet pset = null;
Assert.That(() => pset = outPackage.GetPartSet(), Throws.Nothing);
using var ppset = ComReleaserFactory.Create(pset);
IOpcPartEnumerator penum = null;
Assert.That(() => penum = pset.GetEnumerator(), Throws.Nothing);
using var ppenum = new OpcEnumerator <IOpcPartEnumerator, IOpcPart>(penum);
while (ppenum.MoveNext())
{
TestContext.WriteLine($"{ppenum.Current.GetContentType()}, {ppenum.Current.GetCompressionOptions()}");
}
TestContext.WriteLine();
IOpcRelationshipSet rset = null;
Assert.That(() => rset = outPackage.GetRelationshipSet(), Throws.Nothing);
using var prset = ComReleaserFactory.Create(rset);
IOpcRelationshipEnumerator renum = null;
Assert.That(() => renum = rset.GetEnumerator(), Throws.Nothing);
using var prenum = new OpcEnumerator <IOpcRelationshipEnumerator, IOpcRelationship>(renum);
while (prenum.MoveNext())
{
TestContext.WriteLine($"{prenum.Current.GetId()}, {prenum.Current.GetRelationshipType()}, {prenum.Current.GetTargetMode()}");
}
TestContext.WriteLine();
}
