Examples of org.pdfbox.pdmodel.common.PDMetadata

org.pdfbox.pdmodel.common.PDMetadata
This class represents metadata for various objects in a PDF document. @author Ben Litchfield @version $Revision: 1.2 $

      OutputStreamWriter os = new OutputStreamWriter(bs, "UTF8");
      os.write(xmpString);
      os.close();
      ByteArrayInputStream in = new ByteArrayInputStream(bs.toByteArray());


      PDMetadata metadataStream = new PDMetadata(document, in, false);
      catalog.setMetadata(metadataStream);


      document.save(tempFile.getAbsolutePath());


    } finally {

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        System.err
            .println("Error: Cannot add metadata to encrypted document.");
        System.exit(1);
      }
      PDDocumentCatalog catalog = document.getDocumentCatalog();
      PDMetadata meta = catalog.getMetadata();


      if (meta == null) {
        return null;
      } else {
        // PDMetadata.getInputStreamAsString() does not work


        // Convert to UTF8 and make available for metadata.
        InputStreamReader is = new InputStreamReader(meta
            .createInputStream(), "UTF8");
        return slurp(is).trim(); // Trim to kill padding end-newline.
      }
    } finally {
      if (document != null)

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        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(XMLUtil.parse(metaRaw
              .createInputStream()));
        } else {
          meta = new XMPMetadata();
        }
        meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE,
            XMPSchemaBibtex.class);


        List<XMPSchema> schemas = meta.getSchemas();


        assertEquals(4, schemas.size());


        schemas = meta
            .getSchemasByNamespaceURI(XMPSchemaBibtex.NAMESPACE);
        assertEquals(1, schemas.size());


        schemas = meta
            .getSchemasByNamespaceURI(XMPSchemaDublinCore.NAMESPACE);
        assertEquals(1, schemas.size());
        XMPSchemaDublinCore dc = (XMPSchemaDublinCore) schemas.get(0);
        assertEquals("application/pdf", dc.getFormat());


        schemas = meta
            .getSchemasByNamespaceURI(XMPSchemaBasic.NAMESPACE);
        assertEquals(1, schemas.size());
        XMPSchemaBasic bs = (XMPSchemaBasic) schemas.get(0);
        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();


        assertEquals(c.get(Calendar.YEAR), other.get(Calendar.YEAR));
        assertEquals(c.get(Calendar.MONTH), other.get(Calendar.MONTH));
        assertEquals(c.get(Calendar.DATE), other.get(Calendar.DATE));
        assertEquals(c.get(Calendar.HOUR), other.get(Calendar.HOUR));
        assertEquals(c.get(Calendar.MINUTE), other.get(Calendar.MINUTE));
        assertEquals(c.get(Calendar.SECOND), other.get(Calendar.SECOND));
        assertTrue(c.getTimeZone().hasSameRules(other.getTimeZone()));


        schemas = meta
            .getSchemasByNamespaceURI(XMPSchemaMediaManagement.NAMESPACE);
        assertEquals(1, schemas.size());
        XMPSchemaMediaManagement mm = (XMPSchemaMediaManagement) schemas
            .get(0);
        assertEquals("17", mm.getSequenceList("xapMM:VersionID").get(0));


      } finally {
        if (document != null) {
          document.close();
        }
      }
    }


    { // Now alter the Bibtex entry, write it and do all the checks again
      BibtexEntry toSet = t1BibtexEntry();
      toSet.setField("author", "Pokemon!");


      XMPUtil.writeXMP(pdfFile, toSet, null);


      List l = XMPUtil.readXMP(pdfFile.getAbsoluteFile());
      assertEquals(1, l.size());
      BibtexEntry e = (BibtexEntry) l.get(0);


      assertEquals(toSet, e);


      // This is what we really want to test: Is the rest of the
      // descriptions still there?


      PDDocument document = null;
      try {
        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(XMLUtil.parse(metaRaw
              .createInputStream()));
        } else {
          meta = new XMPMetadata();
        }
        meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE,

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      assertEquals(t3BibtexEntry(), XMPUtil
          .getBibtexEntryFromDocumentInformation(document
              .getDocumentInformation()));


      PDDocumentCatalog catalog = document.getDocumentCatalog();
      PDMetadata metaRaw = catalog.getMetadata();


      if (metaRaw == null) {
        fail();
        return;
      }


      XMPMetadata meta = new XMPMetadata(XMLUtil.parse(metaRaw
          .createInputStream()));
      meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE,
          XMPSchemaBibtex.class);


      // Check Dublin Core

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      assertEquals(t3BibtexEntry(), XMPUtil
          .getBibtexEntryFromDocumentInformation(document
              .getDocumentInformation()));


      PDDocumentCatalog catalog = document.getDocumentCatalog();
      PDMetadata metaRaw = catalog.getMetadata();


      if (metaRaw == null) {
        fail();
      }


      XMPMetadata meta = new XMPMetadata(XMLUtil.parse(metaRaw
          .createInputStream()));
      meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE,
          XMPSchemaBibtex.class);


      // Check Dublin Core

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        assertEquals(originalAuthors, AuthorList.getAuthorList(b
            .getField("author").toString()));


        // Now check from Dublin Core
        PDDocumentCatalog catalog = document.getDocumentCatalog();
        PDMetadata metaRaw = catalog.getMetadata();


        if (metaRaw == null) {
          fail();
        }


        XMPMetadata meta = new XMPMetadata(XMLUtil.parse(metaRaw
            .createInputStream()));
        meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE,
            XMPSchemaBibtex.class);


        List<XMPSchema> schemas = meta

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    }
  }


  static XMPMetadata getXMPMetadata(PDDocument document) throws IOException {
    PDDocumentCatalog catalog = document.getDocumentCatalog();
    PDMetadata metaRaw = catalog.getMetadata();


    if (metaRaw == null) {
      return null;
    }


    XMPMetadata meta = new XMPMetadata(XMLUtil.parse(metaRaw
        .createInputStream()));
    meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE, XMPSchemaBibtex.class);
    return meta;
  }

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    if (database != null)
      entries = database.resolveForStrings(entries, false);


    PDDocumentCatalog catalog = document.getDocumentCatalog();
    PDMetadata metaRaw = catalog.getMetadata();


    XMPMetadata meta;
    if (metaRaw != null) {
      meta = new XMPMetadata(XMLUtil.parse(metaRaw.createInputStream()));
    } else {
      meta = new XMPMetadata();
    }


    // Remove all current Dublin-Core schemas
    List schemas = meta
        .getSchemasByNamespaceURI(XMPSchemaDublinCore.NAMESPACE);
    Iterator it = schemas.iterator();
    while (it.hasNext()) {
      XMPSchema bib = (XMPSchema) it.next();
      bib.getElement().getParentNode().removeChild(bib.getElement());
    }


    for (BibtexEntry entry : entries) {
      XMPSchemaDublinCore dcSchema = new XMPSchemaDublinCore(meta);
      writeToDCSchema(dcSchema, entry, null);
      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);
  }

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            .iterator().next(), null);
        writeDublinCore(document, bibtexEntries, null);
      }


      PDDocumentCatalog catalog = document.getDocumentCatalog();
      PDMetadata metaRaw = catalog.getMetadata();


      XMPMetadata meta;
      if (metaRaw != null) {
        meta = new XMPMetadata(XMLUtil.parse(metaRaw
            .createInputStream()));
      } else {
        meta = new XMPMetadata();
      }
      meta.addXMLNSMapping(XMPSchemaBibtex.NAMESPACE,
          XMPSchemaBibtex.class);


      // Remove all current Bibtex-schemas
      List schemas = meta
          .getSchemasByNamespaceURI(XMPSchemaBibtex.NAMESPACE);
      Iterator it = schemas.iterator();
      while (it.hasNext()) {
        XMPSchemaBibtex bib = (XMPSchemaBibtex) it.next();
        bib.getElement().getParentNode().removeChild(bib.getElement());
      }


      it = bibtexEntries.iterator();
      while (it.hasNext()) {
        BibtexEntry e = (BibtexEntry) it.next();
        XMPSchemaBibtex bibtex = new XMPSchemaBibtex(meta);
        meta.addSchema(bibtex);
        bibtex.setBibtexEntry(e, null);
      }


      // 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());

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     * 
     * @return The metadata for this object.
     */
    public PDMetadata getMetadata()
    {
        PDMetadata retval = null;
        COSStream mdStream = (COSStream)xobject.getStream().getDictionaryObject( "Metadata" );
        if( mdStream != null )
        {
            retval = new PDMetadata( mdStream );
        }
        return retval;
    }

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Related Classes of org.pdfbox.pdmodel.common.PDMetadata

net.sf.jabref.util.XMPUtil

org.pdfbox.examples.pdmodel.AddMetadataFromDocInfo

org.pdfbox.examples.pdmodel.PrintDocumentMetaData

org.pdfbox.pdmodel.graphics.xobject.PDXObject

org.pdfbox.pdmodel.PDDocumentCatalog

org.pdfbox.pdmodel.PDPage

tests.net.sf.jabref.util.XMPUtilTest

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