private void RegisterStandardAliases() { var aliasToArrayOrdered = new AliasOptions { IsArrayOrdered = true }; var aliasToArrayAltText = new AliasOptions { IsArrayAltText = true }; // Aliases from XMP to DC. RegisterAlias(XmpConstants.NsXmp, "Author", XmpConstants.NsDC, "creator", aliasToArrayOrdered); RegisterAlias(XmpConstants.NsXmp, "Authors", XmpConstants.NsDC, "creator", null); RegisterAlias(XmpConstants.NsXmp, "Description", XmpConstants.NsDC, "description", null); RegisterAlias(XmpConstants.NsXmp, "Format", XmpConstants.NsDC, "format", null); RegisterAlias(XmpConstants.NsXmp, "Keywords", XmpConstants.NsDC, "subject", null); RegisterAlias(XmpConstants.NsXmp, "Locale", XmpConstants.NsDC, "language", null); RegisterAlias(XmpConstants.NsXmp, "Title", XmpConstants.NsDC, "title", null); RegisterAlias(XmpConstants.NsXmpRights, "Copyright", XmpConstants.NsDC, "rights", null); // Aliases from PDF to DC and XMP. RegisterAlias(XmpConstants.NsPdf, "Author", XmpConstants.NsDC, "creator", aliasToArrayOrdered); RegisterAlias(XmpConstants.NsPdf, "BaseURL", XmpConstants.NsXmp, "BaseURL", null); RegisterAlias(XmpConstants.NsPdf, "CreationDate", XmpConstants.NsXmp, "CreateDate", null); RegisterAlias(XmpConstants.NsPdf, "Creator", XmpConstants.NsXmp, "CreatorTool", null); RegisterAlias(XmpConstants.NsPdf, "ModDate", XmpConstants.NsXmp, "ModifyDate", null); RegisterAlias(XmpConstants.NsPdf, "Subject", XmpConstants.NsDC, "description", aliasToArrayAltText); RegisterAlias(XmpConstants.NsPdf, "Title", XmpConstants.NsDC, "title", aliasToArrayAltText); // Aliases from PHOTOSHOP to DC and XMP. RegisterAlias(XmpConstants.NsPhotoshop, "Author", XmpConstants.NsDC, "creator", aliasToArrayOrdered); RegisterAlias(XmpConstants.NsPhotoshop, "Caption", XmpConstants.NsDC, "description", aliasToArrayAltText); RegisterAlias(XmpConstants.NsPhotoshop, "Copyright", XmpConstants.NsDC, "rights", aliasToArrayAltText); RegisterAlias(XmpConstants.NsPhotoshop, "Keywords", XmpConstants.NsDC, "subject", null); RegisterAlias(XmpConstants.NsPhotoshop, "Marked", XmpConstants.NsXmpRights, "Marked", null); RegisterAlias(XmpConstants.NsPhotoshop, "Title", XmpConstants.NsDC, "title", aliasToArrayAltText); RegisterAlias(XmpConstants.NsPhotoshop, "WebStatement", XmpConstants.NsXmpRights, "WebStatement", null); // Aliases from TIFF and EXIF to DC and XMP. RegisterAlias(XmpConstants.NsTiff, "Artist", XmpConstants.NsDC, "creator", aliasToArrayOrdered); RegisterAlias(XmpConstants.NsTiff, "Copyright", XmpConstants.NsDC, "rights", null); RegisterAlias(XmpConstants.NsTiff, "DateTime", XmpConstants.NsXmp, "ModifyDate", null); RegisterAlias(XmpConstants.NsTiff, "ImageDescription", XmpConstants.NsDC, "description", null); RegisterAlias(XmpConstants.NsTiff, "Software", XmpConstants.NsXmp, "CreatorTool", null); // Aliases from PNG (Acrobat ImageCapture) to DC and XMP. RegisterAlias(XmpConstants.NsPng, "Author", XmpConstants.NsDC, "creator", aliasToArrayOrdered); RegisterAlias(XmpConstants.NsPng, "Copyright", XmpConstants.NsDC, "rights", aliasToArrayAltText); RegisterAlias(XmpConstants.NsPng, "CreationTime", XmpConstants.NsXmp, "CreateDate", null); RegisterAlias(XmpConstants.NsPng, "Description", XmpConstants.NsDC, "description", aliasToArrayAltText); RegisterAlias(XmpConstants.NsPng, "ModificationTime", XmpConstants.NsXmp, "ModifyDate", null); RegisterAlias(XmpConstants.NsPng, "Software", XmpConstants.NsXmp, "CreatorTool", null); RegisterAlias(XmpConstants.NsPng, "Title", XmpConstants.NsDC, "title", aliasToArrayAltText); }
public XmpAliasInfo(string actualNs, string actualPrefix, string actualProp, AliasOptions aliasOpts) { Namespace = actualNs; Prefix = actualPrefix; PropName = actualProp; AliasForm = aliasOpts; }
/// <summary>Associates an alias name with an actual name.</summary> /// <remarks> /// Associates an alias name with an actual name. /// <para /> /// Define a alias mapping from one namespace/property to another. Both /// property names must be simple names. An alias can be a direct mapping, /// where the alias and actual have the same data type. It is also possible /// to map a simple alias to an item in an array. This can either be to the /// first item in the array, or to the 'x-default' item in an alt-text array. /// Multiple alias names may map to the same actual, as long as the forms /// match. It is a no-op to reregister an alias in an identical fashion. /// Note: This method is not locking because only called by registerStandardAliases /// which is only called by the constructor. /// Note2: The method is only package-private so that it can be tested with unittests /// </remarks> /// <param name="aliasNs">The namespace URI for the alias. Must not be null or the empty string.</param> /// <param name="aliasProp">The name of the alias. Must be a simple name, not null or the empty string and not a general path expression.</param> /// <param name="actualNs">The namespace URI for the actual. Must not be null or the empty string.</param> /// <param name="actualProp">The name of the actual. Must be a simple name, not null or the empty string and not a general path expression.</param> /// <param name="aliasForm">Provides options for aliases for simple aliases to array items. This is needed to know what kind of array to create if /// set for the first time via the simple alias. Pass <c>XMP_NoOptions</c>, the default value, for all direct aliases regardless of whether the actual /// data type is an array or not (see <see cref="AliasOptions"/>).</param> /// <exception cref="XmpException">for inconsistant aliases.</exception> private void RegisterAlias(string aliasNs, string aliasProp, string actualNs, string actualProp, AliasOptions aliasForm) { lock (_lock) { ParameterAsserts.AssertSchemaNs(aliasNs); ParameterAsserts.AssertPropName(aliasProp); ParameterAsserts.AssertSchemaNs(actualNs); ParameterAsserts.AssertPropName(actualProp); // Fix the alias options var aliasOpts = aliasForm != null ? new AliasOptions(XmpNodeUtils.VerifySetOptions(aliasForm.ToPropertyOptions(), null).GetOptions()) : new AliasOptions(); if (_p.IsMatch(aliasProp) || _p.IsMatch(actualProp)) throw new XmpException("Alias and actual property names must be simple", XmpErrorCode.BadXPath); // check if both namespaces are registered var aliasPrefix = GetNamespacePrefix(aliasNs); var actualPrefix = GetNamespacePrefix(actualNs); if (aliasPrefix == null) throw new XmpException("Alias namespace is not registered", XmpErrorCode.BadSchema); if (actualPrefix == null) throw new XmpException("Actual namespace is not registered", XmpErrorCode.BadSchema); var key = aliasPrefix + aliasProp; // check if alias is already existing if (_aliasMap.ContainsKey(key)) throw new XmpException("Alias is already existing", XmpErrorCode.BadParam); if (_aliasMap.ContainsKey(actualPrefix + actualProp)) throw new XmpException("Actual property is already an alias, use the base property", XmpErrorCode.BadParam); _aliasMap[key] = new XmpAliasInfo(actualNs, actualPrefix, actualProp, aliasOpts); } }