Examples with XMPSchemaDublinCore org.apache.jempbox.xmp.XMPSchemaDublinCore used on opensource projects

Example 6 with XMPSchemaDublinCore

use of org.apache.jempbox.xmp.XMPSchemaDublinCore in project jabref by JabRef.

the class XMPUtilTest method testSimpleUpdate.

/**
     * Tests whether writing BibTex.xmp will preserve existing XMP-descriptions.
     *
     * @throws Exception (indicating an failure)
     */
@Test
public void testSimpleUpdate() throws Exception {
    String s = " <rdf:Description rdf:about=''" + "  xmlns:xmp='http://ns.adobe.com/xap/1.0/'>" + "  <xmp:CreatorTool>Acrobat PDFMaker 7.0.7</xmp:CreatorTool>" + "  <xmp:ModifyDate>2006-08-07T18:50:24+02:00</xmp:ModifyDate>" + "  <xmp:CreateDate>2006-08-07T14:44:24+02:00</xmp:CreateDate>" + "  <xmp:MetadataDate>2006-08-07T18:50:24+02:00</xmp:MetadataDate>" + " </rdf:Description>" + " <rdf:Description rdf:about=''" + "  xmlns:xapMM='http://ns.adobe.com/xap/1.0/mm/'>" + "  <xapMM:DocumentID>uuid:843cd67d-495e-4c1e-a4cd-64178f6b3299</xapMM:DocumentID>" + "  <xapMM:InstanceID>uuid:1e56b4c0-6782-440d-ba76-d2b3d87547d1</xapMM:InstanceID>" + "  <xapMM:VersionID>" + "   <rdf:Seq>" + "    <rdf:li>17</rdf:li>" + "   </rdf:Seq>" + "  </xapMM:VersionID>" + " </rdf:Description>" + " <rdf:Description rdf:about=''" + "  xmlns:dc='http://purl.org/dc/elements/1.1/'>" + "  <dc:format>application/pdf</dc:format>" + "</rdf:Description>";
    writeManually(pdfFile, XMPUtilTest.bibtexXPacket(s));
    // Nothing there yet, but should not crash
    Assert.assertEquals(Collections.emptyList(), XMPUtil.readXMP(pdfFile, xmpPreferences));
    s = " <rdf:Description rdf:about=''" + "  xmlns:xmp='http://ns.adobe.com/xap/1.0/'>" + "  <xmp:CreatorTool>Acrobat PDFMaker 7.0.7</xmp:CreatorTool>" + "  <xmp:ModifyDate>2006-08-07T18:50:24+02:00</xmp:ModifyDate>" + "  <xmp:CreateDate>2006-08-07T14:44:24+02:00</xmp:CreateDate>" + "  <xmp:MetadataDate>2006-08-07T18:50:24+02:00</xmp:MetadataDate>" + " </rdf:Description>" + " <rdf:Description rdf:about=''" + "  xmlns:xapMM='http://ns.adobe.com/xap/1.0/mm/'>" + "  <xapMM:DocumentID>uuid:843cd67d-495e-4c1e-a4cd-64178f6b3299</xapMM:DocumentID>" + "  <xapMM:InstanceID>uuid:1e56b4c0-6782-440d-ba76-d2b3d87547d1</xapMM:InstanceID>" + "  <xapMM:VersionID>" + "   <rdf:Seq>" + "    <rdf:li>17</rdf:li>" + "   </rdf:Seq>" + "  </xapMM:VersionID>" + " </rdf:Description>" + " <rdf:Description rdf:about=''" + "  xmlns:dc='http://purl.org/dc/elements/1.1/'>" + "  <dc:format>application/pdf</dc:format>" + "  <dc:title>" + "   <rdf:Alt>" + "    <rdf:li xml:lang='x-default'>Questionnaire.pdf</rdf:li>" + "   </rdf:Alt>" + "  </dc:title>" + "</rdf:Description>";
    writeManually(pdfFile, XMPUtilTest.bibtexXPacket(s));
    // Title is Questionnaire.pdf so the DublinCore fallback should hit
    // in...
    Assert.assertEquals(1, XMPUtil.readXMP(pdfFile, xmpPreferences).size());
    {
        // Now write new packet and check if it was correctly written
        XMPUtil.writeXMP(pdfFile, t1BibtexEntry(), null, xmpPreferences);
        List<BibEntry> l = XMPUtil.readXMP(pdfFile.getAbsoluteFile(), xmpPreferences);
        Assert.assertEquals(1, l.size());
        BibEntry e = l.get(0);
        assertEqualsBibtexEntry(t1BibtexEntry(), e);
        try (PDDocument document = PDDocument.load(pdfFile.getAbsoluteFile())) {
            if (document.isEncrypted()) {
                throw new IOException("Error: Cannot read metadata from encrypted document.");
            }
            PDDocumentCatalog catalog = document.getDocumentCatalog();
            PDMetadata metaRaw = catalog.getMetadata();
            XMPMetadata meta;
            if (metaRaw == null) {
                meta = new XMPMetadata();
            } else {
                meta = new XMPMetadata(XMLUtil.parse(metaRaw.createInputStream()));
            }
            meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE, XMPSchemaBibtex.class);
            List<XMPSchema> schemas = meta.getSchemas();
            Assert.assertEquals(4, schemas.size());
            schemas = meta.getSchemasByNamespaceURI(XMPSchemaBibtex.NAMESPACE);
            Assert.assertEquals(1, schemas.size());
            schemas = meta.getSchemasByNamespaceURI(XMPSchemaDublinCore.NAMESPACE);
            Assert.assertEquals(1, schemas.size());
            XMPSchemaDublinCore dc = (XMPSchemaDublinCore) schemas.get(0);
            Assert.assertEquals("application/pdf", dc.getFormat());
            schemas = meta.getSchemasByNamespaceURI(XMPSchemaBasic.NAMESPACE);
            Assert.assertEquals(1, schemas.size());
            XMPSchemaBasic bs = (XMPSchemaBasic) schemas.get(0);
            Assert.assertEquals("Acrobat PDFMaker 7.0.7", bs.getCreatorTool());
            Calendar c = Calendar.getInstance();
            c.clear();
            c.set(Calendar.YEAR, 2006);
            c.set(Calendar.MONTH, Calendar.AUGUST);
            c.set(Calendar.DATE, 7);
            c.set(Calendar.HOUR, 14);
            c.set(Calendar.MINUTE, 44);
            c.set(Calendar.SECOND, 24);
            c.setTimeZone(TimeZone.getTimeZone("GMT+2"));
            Calendar other = bs.getCreateDate();
            Assert.assertEquals(c.get(Calendar.YEAR), other.get(Calendar.YEAR));
            Assert.assertEquals(c.get(Calendar.MONTH), other.get(Calendar.MONTH));
            Assert.assertEquals(c.get(Calendar.DATE), other.get(Calendar.DATE));
            Assert.assertEquals(c.get(Calendar.HOUR), other.get(Calendar.HOUR));
            Assert.assertEquals(c.get(Calendar.MINUTE), other.get(Calendar.MINUTE));
            Assert.assertEquals(c.get(Calendar.SECOND), other.get(Calendar.SECOND));
            Assert.assertTrue(c.getTimeZone().hasSameRules(other.getTimeZone()));
            schemas = meta.getSchemasByNamespaceURI(XMPSchemaMediaManagement.NAMESPACE);
            Assert.assertEquals(1, schemas.size());
            XMPSchemaMediaManagement mm = (XMPSchemaMediaManagement) schemas.get(0);
            Assert.assertEquals("17", mm.getSequenceList("xapMM:VersionID").get(0));
        }
    }
    // Now alter the Bibtex entry, write it and do all the checks again
    BibEntry toSet = t1BibtexEntry();
    toSet.setField("author", "Pokemon!");
    XMPUtil.writeXMP(pdfFile, toSet, null, xmpPreferences);
    List<BibEntry> l = XMPUtil.readXMP(pdfFile.getAbsoluteFile(), xmpPreferences);
    Assert.assertEquals(1, l.size());
    BibEntry e = l.get(0);
    assertEqualsBibtexEntry(toSet, e);
    try (PDDocument document = PDDocument.load(pdfFile.getAbsoluteFile())) {
        if (document.isEncrypted()) {
            throw new IOException("Error: Cannot read metadata from encrypted document.");
        }
        PDDocumentCatalog catalog = document.getDocumentCatalog();
        PDMetadata metaRaw = catalog.getMetadata();
        XMPMetadata meta;
        if (metaRaw == null) {
            meta = new XMPMetadata();
        } else {
            meta = new XMPMetadata(XMLUtil.parse(metaRaw.createInputStream()));
        }
        meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE, XMPSchemaBibtex.class);
        List<XMPSchema> schemas = meta.getSchemas();
        Assert.assertEquals(4, schemas.size());
        schemas = meta.getSchemasByNamespaceURI(XMPSchemaBibtex.NAMESPACE);
        Assert.assertEquals(1, schemas.size());
        schemas = meta.getSchemasByNamespaceURI(XMPSchemaDublinCore.NAMESPACE);
        Assert.assertEquals(1, schemas.size());
        XMPSchemaDublinCore dc = (XMPSchemaDublinCore) schemas.get(0);
        Assert.assertEquals("application/pdf", dc.getFormat());
        schemas = meta.getSchemasByNamespaceURI(XMPSchemaBasic.NAMESPACE);
        Assert.assertEquals(1, schemas.size());
        XMPSchemaBasic bs = (XMPSchemaBasic) schemas.get(0);
        Assert.assertEquals("Acrobat PDFMaker 7.0.7", bs.getCreatorTool());
        Calendar c = Calendar.getInstance();
        c.clear();
        c.set(Calendar.YEAR, 2006);
        c.set(Calendar.MONTH, 7);
        c.set(Calendar.DATE, 7);
        c.set(Calendar.HOUR, 14);
        c.set(Calendar.MINUTE, 44);
        c.set(Calendar.SECOND, 24);
        c.setTimeZone(TimeZone.getTimeZone("GMT+2"));
        Calendar other = bs.getCreateDate();
        Assert.assertEquals(c.get(Calendar.YEAR), other.get(Calendar.YEAR));
        Assert.assertEquals(c.get(Calendar.MONTH), other.get(Calendar.MONTH));
        Assert.assertEquals(c.get(Calendar.DATE), other.get(Calendar.DATE));
        Assert.assertEquals(c.get(Calendar.HOUR), other.get(Calendar.HOUR));
        Assert.assertEquals(c.get(Calendar.MINUTE), other.get(Calendar.MINUTE));
        Assert.assertEquals(c.get(Calendar.SECOND), other.get(Calendar.SECOND));
        Assert.assertTrue(c.getTimeZone().hasSameRules(other.getTimeZone()));
        schemas = meta.getSchemasByNamespaceURI(XMPSchemaMediaManagement.NAMESPACE);
        Assert.assertEquals(1, schemas.size());
        XMPSchemaMediaManagement mm = (XMPSchemaMediaManagement) schemas.get(0);
        Assert.assertEquals("17", mm.getSequenceList("xapMM:VersionID").get(0));
    }
}

Example 7 with XMPSchemaDublinCore

use of org.apache.jempbox.xmp.XMPSchemaDublinCore in project jabref by JabRef.

the class XMPUtilTest method testWriteSingleUpdatesDCAndInfo.

@Test
public void testWriteSingleUpdatesDCAndInfo() throws IOException, TransformerException {
    List<BibEntry> l = new LinkedList<>();
    l.add(t3BibtexEntry());
    XMPUtil.writeXMP(pdfFile, l, null, true, xmpPreferences);
    try (PDDocument document = PDDocument.load(pdfFile.getAbsoluteFile())) {
        if (document.isEncrypted()) {
            Assert.fail("Cannot add metadata to encrypted document.");
        }
        Assert.assertEquals("Kelly Clarkson and Ozzy Osbourne", document.getDocumentInformation().getAuthor());
        Assert.assertEquals("Hypersonic ultra-sound", document.getDocumentInformation().getTitle());
        Assert.assertEquals("Huey Duck and Dewey Duck and Louie Duck", document.getDocumentInformation().getCustomMetadataValue("bibtex/editor"));
        Assert.assertEquals("Clarkson06", document.getDocumentInformation().getCustomMetadataValue("bibtex/bibtexkey"));
        Assert.assertEquals("peanut, butter, jelly", document.getDocumentInformation().getKeywords());
        assertEqualsBibtexEntry(t3BibtexEntry(), XMPUtil.getBibtexEntryFromDocumentInformation(document.getDocumentInformation()).get());
        PDDocumentCatalog catalog = document.getDocumentCatalog();
        PDMetadata metaRaw = catalog.getMetadata();
        if (metaRaw == null) {
            Assert.fail();
            return;
        }
        XMPMetadata meta = new XMPMetadata(XMLUtil.parse(metaRaw.createInputStream()));
        meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE, XMPSchemaBibtex.class);
        // Check Dublin Core
        List<XMPSchema> schemas = meta.getSchemasByNamespaceURI("http://purl.org/dc/elements/1.1/");
        Assert.assertEquals(1, schemas.size());
        XMPSchemaDublinCore dcSchema = (XMPSchemaDublinCore) schemas.iterator().next();
        Assert.assertNotNull(dcSchema);
        Assert.assertEquals("Hypersonic ultra-sound", dcSchema.getTitle());
        Assert.assertEquals("1982-07", dcSchema.getSequenceList("dc:date").get(0));
        Assert.assertEquals("Kelly Clarkson", dcSchema.getCreators().get(0));
        Assert.assertEquals("Ozzy Osbourne", dcSchema.getCreators().get(1));
        Assert.assertEquals("Huey Duck", dcSchema.getContributors().get(0));
        Assert.assertEquals("Dewey Duck", dcSchema.getContributors().get(1));
        Assert.assertEquals("Louie Duck", dcSchema.getContributors().get(2));
        Assert.assertEquals("InProceedings".toLowerCase(), dcSchema.getTypes().get(0).toLowerCase());
        Assert.assertTrue(dcSchema.getRelationships().contains("bibtex/bibtexkey/Clarkson06"));
        Assert.assertEquals("peanut", dcSchema.getSubjects().get(0));
        Assert.assertEquals("butter", dcSchema.getSubjects().get(1));
        Assert.assertEquals("jelly", dcSchema.getSubjects().get(2));
        /**
             * Bibtexkey, Journal, pdf, booktitle
             */
        Assert.assertEquals(4, dcSchema.getRelationships().size());
        assertEqualsBibtexEntry(t3BibtexEntry(), XMPUtil.getBibtexEntryFromDublinCore(dcSchema, xmpPreferences).get());
    }
}

Example 8 with XMPSchemaDublinCore

use of org.apache.jempbox.xmp.XMPSchemaDublinCore in project jabref by JabRef.

the class XMPUtil method writeDublinCore.

/**
     * Try to write the given BibTexEntries as DublinCore XMP Schemas
     *
     * Existing DublinCore schemas in the document are removed
     *
     * @param document The pdf document to write to.
     * @param entries  The BibTeX entries that are written as schemas
     * @param database maybenull An optional database which the given BibTeX entries belong to, which will be used to
     *                 resolve strings. If the database is null the strings will not be resolved.
     */
private static void writeDublinCore(PDDocument document, Collection<BibEntry> entries, BibDatabase database, XMPPreferences xmpPreferences) throws IOException, TransformerException {
    Collection<BibEntry> resolvedEntries;
    if (database == null) {
        resolvedEntries = entries;
    } else {
        resolvedEntries = database.resolveForStrings(entries, false);
    }
    PDDocumentCatalog catalog = document.getDocumentCatalog();
    PDMetadata metaRaw = catalog.getMetadata();
    XMPMetadata meta;
    if (metaRaw == null) {
        meta = new XMPMetadata();
    } else {
        meta = new XMPMetadata(XMLUtil.parse(metaRaw.createInputStream()));
    }
    // Remove all current Dublin-Core schemas
    List<XMPSchema> schemas = meta.getSchemasByNamespaceURI(XMPSchemaDublinCore.NAMESPACE);
    for (XMPSchema schema : schemas) {
        schema.getElement().getParentNode().removeChild(schema.getElement());
    }
    for (BibEntry entry : resolvedEntries) {
        XMPSchemaDublinCore dcSchema = new XMPSchemaDublinCore(meta);
        XMPUtil.writeToDCSchema(dcSchema, entry, null, xmpPreferences);
        meta.addSchema(dcSchema);
    }
    // Save to stream and then input that stream to the PDF
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    meta.save(os);
    ByteArrayInputStream is = new ByteArrayInputStream(os.toByteArray());
    PDMetadata metadataStream = new PDMetadata(document, is, false);
    catalog.setMetadata(metadataStream);
}

Example 9 with XMPSchemaDublinCore

use of org.apache.jempbox.xmp.XMPSchemaDublinCore in project tika by apache.

the class PDFParser method extractMetadata.

private void extractMetadata(PDDocument document, Metadata metadata, ParseContext context) throws TikaException {
    //first extract AccessPermissions
    AccessPermission ap = document.getCurrentAccessPermission();
    metadata.set(AccessPermissions.EXTRACT_FOR_ACCESSIBILITY, Boolean.toString(ap.canExtractForAccessibility()));
    metadata.set(AccessPermissions.EXTRACT_CONTENT, Boolean.toString(ap.canExtractContent()));
    metadata.set(AccessPermissions.ASSEMBLE_DOCUMENT, Boolean.toString(ap.canAssembleDocument()));
    metadata.set(AccessPermissions.FILL_IN_FORM, Boolean.toString(ap.canFillInForm()));
    metadata.set(AccessPermissions.CAN_MODIFY, Boolean.toString(ap.canModify()));
    metadata.set(AccessPermissions.CAN_MODIFY_ANNOTATIONS, Boolean.toString(ap.canModifyAnnotations()));
    metadata.set(AccessPermissions.CAN_PRINT, Boolean.toString(ap.canPrint()));
    metadata.set(AccessPermissions.CAN_PRINT_DEGRADED, Boolean.toString(ap.canPrintDegraded()));
    //now go for the XMP
    Document dom = loadDOM(document.getDocumentCatalog().getMetadata(), metadata, context);
    XMPMetadata xmp = null;
    if (dom != null) {
        xmp = new XMPMetadata(dom);
    }
    XMPSchemaDublinCore dcSchema = null;
    if (xmp != null) {
        try {
            dcSchema = xmp.getDublinCoreSchema();
        } catch (IOException e) {
        }
        JempboxExtractor.extractXMPMM(xmp, metadata);
    }
    PDDocumentInformation info = document.getDocumentInformation();
    metadata.set(PagedText.N_PAGES, document.getNumberOfPages());
    extractMultilingualItems(metadata, TikaCoreProperties.TITLE, info.getTitle(), dcSchema);
    addMetadata(metadata, PDF.DOC_INFO_TITLE, info.getTitle());
    extractDublinCoreListItems(metadata, TikaCoreProperties.CREATOR, info.getAuthor(), dcSchema);
    addMetadata(metadata, PDF.DOC_INFO_CREATOR, info.getAuthor());
    extractDublinCoreListItems(metadata, TikaCoreProperties.CONTRIBUTOR, null, dcSchema);
    addMetadata(metadata, TikaCoreProperties.CREATOR_TOOL, info.getCreator());
    addMetadata(metadata, PDF.DOC_INFO_CREATOR_TOOL, info.getCreator());
    addMetadata(metadata, TikaCoreProperties.KEYWORDS, info.getKeywords());
    addMetadata(metadata, PDF.DOC_INFO_KEY_WORDS, info.getKeywords());
    addMetadata(metadata, "producer", info.getProducer());
    addMetadata(metadata, PDF.DOC_INFO_PRODUCER, info.getProducer());
    extractMultilingualItems(metadata, TikaCoreProperties.DESCRIPTION, null, dcSchema);
    addMetadata(metadata, PDF.DOC_INFO_SUBJECT, info.getSubject());
    // TODO: Move to description in Tika 2.0
    addMetadata(metadata, TikaCoreProperties.TRANSITION_SUBJECT_TO_OO_SUBJECT, info.getSubject());
    addMetadata(metadata, "trapped", info.getTrapped());
    addMetadata(metadata, PDF.DOC_INFO_TRAPPED, info.getTrapped());
    // TODO Remove these in Tika 2.0
    addMetadata(metadata, "created", info.getCreationDate());
    addMetadata(metadata, PDF.DOC_INFO_CREATED, info.getCreationDate());
    addMetadata(metadata, TikaCoreProperties.CREATED, info.getCreationDate());
    Calendar modified = info.getModificationDate();
    addMetadata(metadata, Metadata.LAST_MODIFIED, modified);
    addMetadata(metadata, TikaCoreProperties.MODIFIED, modified);
    addMetadata(metadata, PDF.DOC_INFO_MODIFICATION_DATE, info.getModificationDate());
    // All remaining metadata is custom
    // Copy this over as-is
    List<String> handledMetadata = Arrays.asList("Author", "Creator", "CreationDate", "ModDate", "Keywords", "Producer", "Subject", "Title", "Trapped");
    for (COSName key : info.getCOSObject().keySet()) {
        String name = key.getName();
        if (!handledMetadata.contains(name)) {
            addMetadata(metadata, name, info.getCOSObject().getDictionaryObject(key));
            addMetadata(metadata, PDF.PDF_DOC_INFO_CUSTOM_PREFIX + name, info.getCOSObject().getDictionaryObject(key));
        }
    }
    //try to get the various versions
    //Caveats:
    //    there is currently a fair amount of redundancy
    //    TikaCoreProperties.FORMAT can be multivalued
    //    There are also three potential pdf specific version keys: pdf:PDFVersion, pdfa:PDFVersion, pdf:PDFExtensionVersion
    metadata.set(PDF.PDF_VERSION, Float.toString(document.getDocument().getVersion()));
    metadata.add(TikaCoreProperties.FORMAT.getName(), MEDIA_TYPE.toString() + "; version=" + Float.toString(document.getDocument().getVersion()));
    try {
        if (xmp != null) {
            xmp.addXMLNSMapping(XMPSchemaPDFAId.NAMESPACE, XMPSchemaPDFAId.class);
            XMPSchemaPDFAId pdfaxmp = (XMPSchemaPDFAId) xmp.getSchemaByClass(XMPSchemaPDFAId.class);
            if (pdfaxmp != null) {
                if (pdfaxmp.getPart() != null) {
                    metadata.set(PDF.PDFAID_PART, Integer.toString(pdfaxmp.getPart()));
                }
                if (pdfaxmp.getConformance() != null) {
                    metadata.set(PDF.PDFAID_CONFORMANCE, pdfaxmp.getConformance());
                    String version = "A-" + pdfaxmp.getPart() + pdfaxmp.getConformance().toLowerCase(Locale.ROOT);
                    metadata.set(PDF.PDFA_VERSION, version);
                    metadata.add(TikaCoreProperties.FORMAT.getName(), MEDIA_TYPE.toString() + "; version=\"" + version + "\"");
                }
            }
        // TODO WARN if this XMP version is inconsistent with document header version?          
        }
    } catch (IOException e) {
        metadata.set(TikaCoreProperties.TIKA_META_PREFIX + "pdf:metadata-xmp-parse-failed", "" + e);
    }
    //TODO: Let's try to move this into PDFBox.
    //Attempt to determine Adobe extension level, if present:
    COSDictionary root = document.getDocumentCatalog().getCOSObject();
    COSDictionary extensions = (COSDictionary) root.getDictionaryObject(COSName.getPDFName("Extensions"));
    if (extensions != null) {
        for (COSName extName : extensions.keySet()) {
            // If it's an Adobe one, interpret it to determine the extension level:
            if (extName.equals(COSName.getPDFName("ADBE"))) {
                COSDictionary adobeExt = (COSDictionary) extensions.getDictionaryObject(extName);
                if (adobeExt != null) {
                    String baseVersion = adobeExt.getNameAsString(COSName.getPDFName("BaseVersion"));
                    int el = adobeExt.getInt(COSName.getPDFName("ExtensionLevel"));
                    //-1 is sentinel value that something went wrong in getInt
                    if (el != -1) {
                        metadata.set(PDF.PDF_EXTENSION_VERSION, baseVersion + " Adobe Extension Level " + el);
                        metadata.add(TikaCoreProperties.FORMAT.getName(), MEDIA_TYPE.toString() + "; version=\"" + baseVersion + " Adobe Extension Level " + el + "\"");
                    }
                }
            } else {
                // WARN that there is an Extension, but it's not Adobe's, and so is a 'new' format'.
                metadata.set("pdf:foundNonAdobeExtensionName", extName.getName());
            }
        }
    }
}

Example 10 with XMPSchemaDublinCore

use of org.apache.jempbox.xmp.XMPSchemaDublinCore in project OpenOLAT by OpenOLAT.

the class PdfDocument method addMetadata.

public void addMetadata(String title, String subject, String author) throws IOException, TransformerException {
    PDDocumentCatalog catalog = document.getDocumentCatalog();
    PDDocumentInformation info = document.getDocumentInformation();
    Calendar date = Calendar.getInstance();
    info.setAuthor(author);
    info.setCreator(author);
    info.setCreationDate(date);
    info.setModificationDate(date);
    info.setTitle(title);
    info.setSubject(subject);
    XMPMetadata metadata = new XMPMetadata();
    XMPSchemaPDF pdfSchema = metadata.addPDFSchema();
    pdfSchema.setProducer("OpenOLAT");
    XMPSchemaBasic basicSchema = metadata.addBasicSchema();
    basicSchema.setModifyDate(date);
    basicSchema.setCreateDate(date);
    basicSchema.setCreatorTool("OpenOLAT");
    basicSchema.setMetadataDate(date);
    XMPSchemaDublinCore dcSchema = metadata.addDublinCoreSchema();
    dcSchema.setTitle(title);
    dcSchema.addCreator(author);
    dcSchema.setDescription(subject);
    PDMetadata metadataStream = new PDMetadata(document);
    metadataStream.importXMPMetadata(metadata);
    catalog.setMetadata(metadataStream);
}