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

Example 6 with XMPSchema

use of org.apache.jempbox.xmp.XMPSchema 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 7 with XMPSchema

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

the class XMPUtil method writeXMP.

/**
     * Try to write the given BibTexEntry in the XMP-stream of the given
     * PDF-file.
     *
     * Throws an IOException if the file cannot be read or written, so the user
     * can remove a lock or cancel the operation.
     *
     * The method will overwrite existing BibTeX-XMP-data, but keep other
     * existing metadata.
     *
     * @param file          The file to write the entries to.
     * @param bibtexEntries The entries to write to the file. *
     * @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.
     * @param writePDFInfo  Write information also in PDF document properties
     * @throws TransformerException If the entry was malformed or unsupported.
     * @throws IOException          If the file could not be written to or could not be found.
     */
public static void writeXMP(File file, Collection<BibEntry> bibtexEntries, BibDatabase database, boolean writePDFInfo, XMPPreferences xmpPreferences) throws IOException, TransformerException {
    Collection<BibEntry> resolvedEntries;
    if (database == null) {
        resolvedEntries = bibtexEntries;
    } else {
        resolvedEntries = database.resolveForStrings(bibtexEntries, false);
    }
    try (PDDocument document = PDDocument.load(file.getAbsoluteFile())) {
        if (document.isEncrypted()) {
            throw new EncryptedPdfsNotSupportedException();
        }
        if (writePDFInfo && (resolvedEntries.size() == 1)) {
            XMPUtil.writeDocumentInformation(document, resolvedEntries.iterator().next(), null, xmpPreferences);
            XMPUtil.writeDublinCore(document, resolvedEntries, null, xmpPreferences);
        }
        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);
        // Remove all current Bibtex-schemas
        List<XMPSchema> schemas = meta.getSchemasByNamespaceURI(XMPSchemaBibtex.NAMESPACE);
        for (XMPSchema schema : schemas) {
            XMPSchemaBibtex bib = (XMPSchemaBibtex) schema;
            bib.getElement().getParentNode().removeChild(bib.getElement());
        }
        for (BibEntry e : resolvedEntries) {
            XMPSchemaBibtex bibtex = new XMPSchemaBibtex(meta);
            meta.addSchema(bibtex);
            bibtex.setBibtexEntry(e, xmpPreferences);
        }
        // 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);
        // Save
        try {
            document.save(file.getAbsolutePath());
        } catch (COSVisitorException e) {
            LOGGER.debug("Could not write XMP metadata", e);
            throw new TransformerException("Could not write XMP metadata: " + e.getLocalizedMessage(), e);
        }
    }
}

Example 8 with XMPSchema

use of org.apache.jempbox.xmp.XMPSchema 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);
}