/// <summary>
/// These functions support parsing serialized RDF into an XMP object, and serailizing an XMP
/// object into RDF. The input for parsing may be any valid Unicode
/// encoding. ISO Latin-1 is also recognized, but its use is strongly discouraged. Serialization
/// is always as UTF-8.
/// <p/>
/// <code>parseFromBuffer()</code> parses RDF from an <code>InputStream</code>. The encoding
/// is recognized automatically.
/// </summary>
/// <param name="in"> an <code>InputStream</code> </param>
/// <param name="options"> Options controlling the parsing.<br>
/// The available options are:
/// <ul>
/// <li> XMP_REQUIRE_XMPMETA - The <x:xmpmeta> XML element is required around
/// <tt><rdf:RDF></tt>.
/// <li> XMP_STRICT_ALIASING - Do not reconcile alias differences, throw an exception.
/// </ul>
/// <em>Note:</em>The XMP_STRICT_ALIASING option is not yet implemented. </param>
/// <returns> Returns the <code>XMPMeta</code>-object created from the input. </returns>
/// <exception cref="XmpException"> If the file is not well-formed XML or if the parsing fails. </exception>
public static IXmpMeta Parse(Stream @in, ParseOptions options)
{
return(XmpMetaParser.Parse(@in, options));
}
/// <summary>
/// Creates an <code>XMPMeta</code>-object from a string.
/// </summary>
/// <param name="packet"> a String contain an XMP-file. </param>
/// <param name="options"> Options controlling the parsing. </param>
/// <returns> Returns the <code>XMPMeta</code>-object created from the input. </returns>
/// <exception cref="XmpException"> If the file is not well-formed XML or if the parsing fails. </exception>
/// <seealso cref= XMPMetaFactory#parseFromString(String, ParseOptions) </seealso>
public static IXmpMeta ParseFromString(string packet, ParseOptions options)
{
return(XmpMetaParser.Parse(packet, options));
}
/// <summary>
/// Creates an <code>XMPMeta</code>-object from a byte-buffer.
/// </summary>
/// <param name="buffer"> a String contain an XMP-file. </param>
/// <param name="options"> Options controlling the parsing. </param>
/// <returns> Returns the <code>XMPMeta</code>-object created from the input. </returns>
/// <exception cref="XmpException"> If the file is not well-formed XML or if the parsing fails. </exception>
/// <seealso cref= XMPMetaFactory#parse(InputStream, ParseOptions) </seealso>
public static IXmpMeta ParseFromBuffer(byte[] buffer, ParseOptions options)
{
return(XmpMetaParser.Parse(buffer, options));
}
private void CheckPdfAInfo(PdfReader reader)
{
byte[] metadata;
IXmpMeta xmpMeta;
IXmpProperty pdfaidConformance;
IXmpProperty pdfaidPart;
try {
metadata = reader.Metadata;
xmpMeta = XmpMetaParser.Parse(metadata, null);
pdfaidConformance = xmpMeta.GetProperty(XmpConst.NS_PDFA_ID, "pdfaid:conformance");
pdfaidPart = xmpMeta.GetProperty(XmpConst.NS_PDFA_ID, "pdfaid:part");
} catch (Exception e) {
throw new PdfAConformanceException(
MessageLocalization.GetComposedMessage("only.pdfa.documents.can.be.added.in.PdfACopy"));
}
if (pdfaidConformance == null || pdfaidPart == null)
{
throw new PdfAConformanceException(
MessageLocalization.GetComposedMessage("only.pdfa.documents.can.be.added.in.PdfACopy"));
}
switch (((IPdfAConformance)pdfIsoConformance).ConformanceLevel)
{
case PdfAConformanceLevel.PDF_A_1A:
case PdfAConformanceLevel.PDF_A_1B:
if (!"1".Equals(pdfaidPart.Value))
{
throw new PdfAConformanceException(MessageLocalization.GetComposedMessage("different.pdf.a.version", "1"));
}
break;
case PdfAConformanceLevel.PDF_A_2A:
case PdfAConformanceLevel.PDF_A_2B:
case PdfAConformanceLevel.PDF_A_2U:
if (!"2".Equals(pdfaidPart.Value))
{
throw new PdfAConformanceException(MessageLocalization.GetComposedMessage("different.pdf.a.version", "2"));
}
break;
case PdfAConformanceLevel.PDF_A_3A:
case PdfAConformanceLevel.PDF_A_3B:
case PdfAConformanceLevel.PDF_A_3U:
case PdfAConformanceLevel.ZUGFeRD:
if (!"3".Equals(pdfaidPart.Value))
{
throw new PdfAConformanceException(MessageLocalization.GetComposedMessage("different.pdf.a.version", "3"));
}
break;
}
switch (((IPdfAConformance)pdfIsoConformance).ConformanceLevel)
{
case PdfAConformanceLevel.PDF_A_1A:
case PdfAConformanceLevel.PDF_A_2A:
case PdfAConformanceLevel.PDF_A_3A:
if (!"A".Equals(pdfaidConformance.Value))
{
throw new PdfAConformanceException(
MessageLocalization.GetComposedMessage("incompatible.pdf.a.conformance.level", "a"));
}
break;
case PdfAConformanceLevel.PDF_A_2U:
case PdfAConformanceLevel.PDF_A_3U:
if ("B".Equals(pdfaidConformance.Value))
{
throw new PdfAConformanceException(
MessageLocalization.GetComposedMessage("incompatible.pdf.a.conformance.level", "u"));
}
break;
}
}
