package org.kuali.ole.docstore.common.document;
   
   import org.apache.log4j.Logger;
   import org.kuali.ole.docstore.common.util.ParseXml;
   import org.w3c.dom.Document;
   import org.w3c.dom.Node;
   import org.w3c.dom.NodeList;
   import org.xml.sax.InputSource;
   import org.xml.sax.SAXException;
  
  import javax.xml.bind.*;
  import javax.xml.bind.annotation.*;
  import javax.xml.parsers.DocumentBuilder;
  import javax.xml.parsers.DocumentBuilderFactory;
  import javax.xml.parsers.ParserConfigurationException;
  import javax.xml.transform.stream.StreamSource;
  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  import java.io.StringReader;
  import java.io.StringWriter;
  import java.util.ArrayList;
  import java.util.List;
  
  
  /**
   * <p>Java class for holdingsTree complex type.
   * <p/>
   * <p>The following schema fragment specifies the expected content contained within this class.
   * <p/>
   * <pre>
   * &lt;complexType name="holdingsTree">
   *   &lt;complexContent>
   *     &lt;extension base="{}docstoreDocument">
   *       &lt;sequence>
   *         &lt;element name="items" type="{}item" maxOccurs="unbounded" minOccurs="0"/>
   *         &lt;element name="holdings" type="{}holdings" minOccurs="0"/>
   *       &lt;/sequence>
   *     &lt;/extension>
   *   &lt;/complexContent>
   * &lt;/complexType>
   * </pre>
   */
  @XmlAccessorType(XmlAccessType.FIELD)
  @XmlType(name = "holdingsTree", propOrder = {
          "items",
          "holdings"
  })
  
  @XmlRootElement(name = "holdingsDocTree")
  public class HoldingsTree
          extends DocstoreDocument implements Comparable<HoldingsTree>{
  
      private static final Logger LOG = Logger.getLogger(HoldingsTree.class);
      @XmlElementWrapper(name = "itemsDocs")
      @XmlElement(name = "itemsDoc")
      protected List<Item> items;
      @XmlElement(name = "holdingsDoc")
      protected Holdings holdings;
  
      /**
       * Gets the value of the items property.
       * <p/>
       * <p/>
       * This accessor method returns a reference to the live list,
       * not a snapshot. Therefore any modification you make to the
       * returned list will be present inside the JAXB object.
       * This is why there is not a <CODE>set</CODE> method for the items property.
       * <p/>
       * <p/>
       * For example, to add a new item, do as follows:
       * <pre>
       *    getItems().add(newItem);
       * </pre>
       * <p/>
       * <p/>
       * <p/>
       * Objects of the following type(s) are allowed in the list
       * {@link org.kuali.ole.docstore.common.document.Item }
       */
      public List<Item> getItems() {
          if (items == null) {
              items = new ArrayList<Item>();
          }
          return this.items;
      }
  
      /**
       * Gets the value of the holdings property.
       *
       * @return possible object is
       *         {@link org.kuali.ole.docstore.common.document.Holdings }
       */
      public Holdings getHoldings() {
          return holdings;
      }
  
      /**
       * Sets the value of the holdings property.
       *
      * @param value allowed object is
      *              {@link org.kuali.ole.docstore.common.document.Holdings }
      */
     public void setHoldings(Holdings value) {
         this.holdings = value;
     }
 
     @Override
     public String serialize(Object object) {
         String result = null;
         StringWriter sw = new StringWriter();
         HoldingsTree holdingsTree = (HoldingsTree) object;
         try {
             JAXBContext jaxbContext = JAXBContext.newInstance(HoldingsTree.class);
             Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
             jaxbMarshaller.marshal(holdingsTree, sw);
             result = sw.toString();
         } catch (Exception e) {
             LOG.error("Exception ", e);
         }
         return result;
     }
 
     @Override
     public Object deserialize(String holdingsTreeXml) {
         JAXBElement<HoldingsTree> holdingsTreeElement = null;
         try {
             JAXBContext jaxbContext = JAXBContext.newInstance(HoldingsTree.class);
             Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
             ByteArrayInputStream input = new ByteArrayInputStream(holdingsTreeXml.getBytes("UTF-8"));
             holdingsTreeElement = jaxbUnmarshaller.unmarshal(new StreamSource(input), HoldingsTree.class);
         } catch (Exception e) {
             LOG.error("Exception ", e);
         }
         HoldingsTree holdingsTrees = holdingsTreeElement.getValue();
 
         try {
             DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
             DocumentBuilder builder = factory.newDocumentBuilder();
             Document doc = builder.parse(new InputSource(new StringReader(holdingsTreeXml)));
             NodeList root = doc.getChildNodes();
             Node holdingsTree = ParseXml.getNode("holdingsDocTree", root);
             Node holdings = ParseXml.getNode("holdingsDoc", holdingsTree.getChildNodes());
             NodeList nodes = holdings.getChildNodes();
             String holdingsXml = ParseXml.nodeToString(holdings);
             if (ParseXml.getNodeValue("holdingsType", nodes).equals("print")) {
                 JAXBContext jc = JAXBContext.newInstance(PHoldings.class);
                 Unmarshaller unmarshaller1 = jc.createUnmarshaller();
                 StreamSource xmlSource = new StreamSource(new StringReader(holdingsXml));
                 JAXBElement<PHoldings> je1 = unmarshaller1.unmarshal(xmlSource, PHoldings.class);
                 PHoldings pHoldings = je1.getValue();
                 holdingsTrees.setHoldings(pHoldings);
             } else {
                 JAXBContext jc = JAXBContext.newInstance(EHoldings.class);
                 Unmarshaller unmarshaller = jc.createUnmarshaller();
                 StreamSource xmlSource1 = new StreamSource(new StringReader(holdingsXml));
                 JAXBElement<EHoldings> je = unmarshaller.unmarshal(xmlSource1, EHoldings.class);
                 EHoldings eHoldings = je.getValue();
                 holdingsTrees.setHoldings(eHoldings);
             }
         } catch (SAXException e) {
             LOG.error("Exception ", e);
         } catch (IOException e) {
             LOG.error("Exception ", e);
         } catch (ParserConfigurationException e) {
             LOG.error("Exception ", e);
         } catch (JAXBException e) {
             LOG.error("Exception ", e);
         }
 
         return holdingsTrees;
     }
 
     public Object deserializeContent(Object object) {
         return null;  //To change body of implemented methods use File | Settings | File Templates.
     }
 
     @Override
     public Object deserializeContent(String content) {
         return null;  //To change body of implemented methods use File | Settings | File Templates.
     }
 
     @Override
     public String serializeContent(Object object) {
         return null;  //To change body of implemented methods use File | Settings | File Templates.
     }
 
     @Override
     public int compareTo(HoldingsTree o) {
         return this.getHoldings().compareTo(o.getHoldings());
     }
 }