cdmlib-model/src/main/java/eu/etaxonomy/cdm/hibernate/URIUserType.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.cdm.hibernate;
  10
  11
  12 import java.net.URI;
  13 import java.net.URISyntaxException;
  14 import java.sql.PreparedStatement;
  15 import java.sql.ResultSet;
  16 import java.sql.SQLException;
  17 import java.sql.Types;
  18
  19 import org.hibernate.HibernateException;
  20 import org.hibernate.TypeMismatchException;
  21 import org.hibernate.engine.spi.SessionImplementor;
  22 import org.hibernate.type.StandardBasicTypes;
  23 import org.hibernate.usertype.UserType;
  24 import org.jadira.usertype.dateandtime.shared.spi.AbstractUserType;
  25
  26 /**
  27  * This class maps java.net.URI to varchar(255)
  28  * @author a.mueller
  29  *
  30  */
  31 public class URIUserType extends AbstractUserType implements UserType {
  32         private static final long serialVersionUID = -5825017496962569105L;
  33
  34         /**
  35      * SQL type for this usertype.
  36      */
  37     private static final int[] SQL_TYPES = {Types.CLOB};
  38
  39         /* (non-Javadoc)
  40          * @see org.jadira.usertype.dateandtime.shared.spi.AbstractSingleColumnUserType#returnedClass()
  41          */
  42         @Override
  43         public Class returnedClass() {
  44                 return URI.class;
  45         }
  46
  47         @Override
  48         public int[] sqlTypes() {
  49                 return SQL_TYPES;
  50         }
  51
  52
  53         @Override
  54         public URI nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)
  55                         throws HibernateException, SQLException {
  56                 String val = (String) StandardBasicTypes.STRING.nullSafeGet(rs, names, session, owner);
  57
  58                 if(val == null) {
  59                         return null;
  60                 } else {
  61             try {
  62                             return new URI(val);
  63                     } catch (URISyntaxException e) {
  64                             throw new TypeMismatchException(e);
  65                     }
  66                 }
  67     }
  68
  69
  70
  71         @Override
  72         public void nullSafeSet(PreparedStatement statement, Object value, int index, SessionImplementor session)
  73                         throws HibernateException, SQLException {
  74                 if (value == null) {
  75           StandardBasicTypes.STRING.nullSafeSet(statement, value, index, session);
  76       } else {
  77           URI uri = (URI) value;
  78           StandardBasicTypes.STRING.nullSafeSet(statement, uri.toString(), index, session);
  79       }
  80     }
  81
  82     /**
  83      * @param value value being copied
  84      * @return copied value
  85      */
  86     public Object deepCopy(Object value) {
  87         if (value == null) {
  88             return null;
  89         }
  90         try {
  91             return new URI(((URI) value).toString());
  92         } catch (URISyntaxException e) {
  93             throw new TypeMismatchException(e);
  94         }
  95     }
  96
  97 }