cdmlib-model/src/main/java/eu/etaxonomy/cdm/jaxb/CdmDocumentBuilder.java

   1 package eu.etaxonomy.cdm.jaxb;
   2
   3 import java.io.File;
   4 import java.io.FileOutputStream;
   5 import java.io.IOException;
   6 import java.io.Writer;
   7
   8 import javax.xml.XMLConstants;
   9 import javax.xml.bind.JAXBContext;
  10 import javax.xml.bind.JAXBException;
  11 import javax.xml.bind.Marshaller;
  12 import javax.xml.bind.Unmarshaller;
  13 import javax.xml.transform.Source;
  14 import javax.xml.transform.stream.StreamSource;
  15 import javax.xml.validation.Schema;
  16 import javax.xml.validation.SchemaFactory;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.apache.commons.logging.LogFactory;
  20 import org.xml.sax.SAXException;
  21
  22 import eu.etaxonomy.cdm.model.DataSet;
  23 import eu.etaxonomy.cdm.strategy.cache.reference.BookDefaultCacheStrategy;
  24
  25 /*
  26 Initializes a JaxbContext with one class (eu.etaxonomy.cdm.model.DataSet)
  27 Binds it to XML schemas found in /src/main/resources/schema/cdm (cdm.xsd, common.xsd, name.xsd).
  28 There is a bit of magic with a resource resolver in eu.etaxonomy.cdm.jaxb
  29 which allows to package the schemas into a jar file.
  30 */
  31 public class CdmDocumentBuilder {
  32
  33         private static Log log = LogFactory.getLog(CdmDocumentBuilder.class);
  34
  35         private JAXBContext jaxbContext;
  36
  37 //      public static String CDM_NAMESPACE = "eu.etaxonomy.cdm.model";
  38 //      public static String[] CDM_SCHEMA_FILES = { "/schema/cdm/common.xsd",
  39 //                                                      "/schema/cdm/name.xsd",
  40 //                                                      "/schema/cdm/cdm.xsd" };
  41
  42         public CdmDocumentBuilder() throws SAXException, JAXBException, IOException {
  43
  44 //              SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
  45 //              schemaFactory.setResourceResolver(new CdmResourceResolver());
  46 //              Source[] sources = new Source[CdmDocumentBuilder.CDM_SCHEMA_FILES.length];
  47 //
  48 //              for(int i = 0; i < CdmDocumentBuilder.CDM_SCHEMA_FILES.length; i++) {
  49 //                      String schemaName = CdmDocumentBuilder.CDM_SCHEMA_FILES[i];
  50 //                      sources[i] = new StreamSource(this.getClass().getResourceAsStream(schemaName));
  51 //              }
  52 //              Schema cdmSchema = schemaFactory.newSchema(sources);
  53
  54                 jaxbContext = JAXBContext.newInstance(new Class[] {DataSet.class});
  55
  56         }
  57
  58         public void marshal(DataSet dataSet, Writer writer) throws JAXBException {
  59
  60                 Marshaller marshaller;
  61                 marshaller = jaxbContext.createMarshaller();
  62                 marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
  63
  64                 // validate with explicit schema
  65                 //marshaller.setSchema(cdmSchema);
  66
  67                 marshaller.marshal(dataSet, writer);
  68
  69         }
  70
  71         public DataSet unmarshal(DataSet dataSet, File file) throws JAXBException {
  72
  73                 Unmarshaller unmarshaller;
  74                 unmarshaller = jaxbContext.createUnmarshaller();
  75
  76                 dataSet = (DataSet) unmarshaller.unmarshal(file);
  77                 return dataSet;
  78
  79         }
  80
  81 //      public void write(DataSet dataSet, Writer writer) throws JAXBException {
  82 //              marshaller.marshal(dataSet, writer);
  83 //      }
  84
  85 //  can only be used with JAXB 2.1
  86 //      public void writeFile(DataSet dataSet, File file) throws JAXBException {
  87 //              marshaller.marshal(dataSet, file);
  88 //      }
  89
  90 }
  91
  92