/**
    * This file Copyright (c) 2008-2013 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.module.rssaggregator;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.core.ItemType;
  import info.magnolia.cms.core.Path;
  import info.magnolia.cms.security.AccessDeniedException;
  import info.magnolia.jcr.util.SessionUtil;
  import info.magnolia.module.admininterface.UUIDSaveHandler;
  import info.magnolia.module.data.DataConsts;
  
  import java.util.Iterator;
  
  import javax.jcr.Node;
  import javax.jcr.PathNotFoundException;
  import javax.jcr.RepositoryException;
  
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import net.sf.json.JSONArray;
  import net.sf.json.JSONObject;
  
  /**
   * Save handler taking care of saving controls implementing MultiValueControl interface.
   *
   * @author had
   */
  public class MultiControlSaveHandler extends UUIDSaveHandler {
  
      private static final Logger log = LoggerFactory.getLogger(MultiControlSaveHandler.class);
      private static final String IMAGE_PROPERTY = "img";
  
      @Override
      protected void processString(Content node, String name, int type,
                                   int encoding, String[] values, String valueStr)
              throws PathNotFoundException, RepositoryException,
              AccessDeniedException {
          Object control = this.getDialog().getSub(name);
          // only handle special multi selects
          if (control instanceof MultiValueControl) {
              try {
                  // delete existing content
                  node.delete(name);
              } catch (PathNotFoundException e) {
                  // node does not exist, yet (ok)
              }
              Content filters = node.createContent(name, new ItemType(DataConsts.MODULE_DATA_CONTENT_NODE_TYPE));
              new JSONArray();
              JSONArray json = JSONArray.fromObject(valueStr);
              for (int i = 0; i < json.size(); i++) {
                  Content content = filters.createContent(Path.getUniqueLabel(filters, "00"), new ItemType(DataConsts.MODULE_DATA_CONTENT_NODE_TYPE));
                  JSONObject value = json.getJSONObject(i);
                  Iterator<String> iter = value.keys();
                  while (iter.hasNext()) {
                      String key = iter.next();
  
                      if (StringUtils.equals(IMAGE_PROPERTY, key)) {
                          try {
                              if (value.get(key) != null && StringUtils.isNotBlank(value.get(key).toString())) {
                                  Node fn = SessionUtil.getNode("dms", value.get(key).toString());
                                  if (fn != null) {
                                      content.createNodeData("imgUUID", fn.getIdentifier());
                                  }
                              }
                          } catch (Exception e) {
                             log.error("Could not get UUID for image stored in DMS: " + e.getMessage());
                         }
                     }
                     content.createNodeData(key, value.get(key));
                 }
             }
         } else {
             super.processString(node, name, type, encoding, values, valueStr);
         }
     }
 }