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1   /*
2    * The Kuali Financial System, a comprehensive financial management system for higher education.
3    * 
4    * Copyright 2005-2014 The Kuali Foundation
5    * 
6    * This program is free software: you can redistribute it and/or modify
7    * it under the terms of the GNU Affero General Public License as
8    * published by the Free Software Foundation, either version 3 of the
9    * License, or (at your option) any later version.
10   * 
11   * This program is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU Affero General Public License for more details.
15   * 
16   * You should have received a copy of the GNU Affero General Public License
17   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18   */
19  package org.kuali.rice.kim.impl.jaxb;
20  
21  import java.io.InputStream;
22  import java.io.OutputStream;
23  import java.util.List;
24  
25  import javax.xml.bind.JAXBContext;
26  import javax.xml.bind.JAXBException;
27  import javax.xml.bind.Marshaller;
28  import javax.xml.bind.Unmarshaller;
29  
30  import org.kuali.rice.core.impl.jaxb.DataXmlDTO;
31  
32  /**
33   * Helper class for importing and exporting KIM XML.
34   * 
35   * <p>TODO: Should this be converted into a service instead?
36   * 
37   * @author Kuali Rice Team (rice.collab@kuali.org)
38   */
39  public final class KimXmlUtil {
40      // Do not allow outside code to instantiate this class.
41      private KimXmlUtil() {}
42      
43      /**
44       * Parses permissions and/or roles from XML.
45       * 
46       * @param inputStream The input stream to read the XML from.
47       */
48      public static void parseKimXml(InputStream inputStream) {
49          try {
50              JAXBContext jaxbContext = JAXBContext.newInstance(DataXmlDTO.class);
51              Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
52              unmarshaller.unmarshal(inputStream);
53          } catch (JAXBException e) {
54              throw new RuntimeException(e);
55          }
56      }
57      
58      /**
59       * Exports one or more sets of KIM objects to XML.
60       * 
61       * @param outputStream The output stream to write the XML to.
62       * @param permissions The KIM permissions to export; set to a null or empty list to prevent exportation of a &lt;permissionData&gt; element.
63       * @param roles The KIM roles to export; set to a null or empty list to prevent exportation of a &lt;roleData&gt; element.
64       */
65      public static void exportKimXml(OutputStream outputStream, List<? extends Object> permissions, List<? extends Object> roles) {
66          PermissionDataXmlDTO permissionData = (permissions != null && !permissions.isEmpty()) ?
67                  new PermissionDataXmlDTO(new PermissionsXmlDTO(permissions)) : null;
68          RoleDataXmlDTO roleData = (roles != null && !roles.isEmpty()) ?
69                  new RoleDataXmlDTO(new RolesXmlDTO(roles)) : null;
70          try {
71              JAXBContext jaxbContext = JAXBContext.newInstance(DataXmlDTO.class);
72              Marshaller marshaller = jaxbContext.createMarshaller();
73              marshaller.marshal(new DataXmlDTO(permissionData, roleData), outputStream);
74          } catch (JAXBException e) {
75              throw new RuntimeException(e);
76          }
77      }
78  }