/**
    * This file Copyright (c) 2003-2011 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.admininterface.pages;
  
  import info.magnolia.cms.beans.config.ContentRepository;
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.core.search.Query;
  import info.magnolia.cms.util.ContentUtil;
  import info.magnolia.cms.util.DumperUtil;
  import info.magnolia.cms.util.QueryUtil;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.module.admininterface.TemplatedMVCHandler;
  import info.magnolia.repository.RepositoryConstants;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Iterator;
  import java.util.List;
  
  import javax.jcr.RepositoryException;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.commons.lang.ArrayUtils;
  import org.apache.commons.lang.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  
  public class JCRUtilsPage extends TemplatedMVCHandler {
      private static final Logger log = LoggerFactory.getLogger(JCRUtilsPage.class);
  
      private String repository = "";
  
      private int level = 1;
  
      private String path = "/";
  
      private String result = "";
  
      private String statement = "";
  
      private String language = Query.SQL;
  
      private String[] supportedLanguages = new String[]{};
  
      private String itemType = "nt:base";
  
      private List<String> repositories = new ArrayList<String>();
  
      public JCRUtilsPage(String name, HttpServletRequest request, HttpServletResponse response) {
          super(name, request, response);
          try {
              supportedLanguages = MgnlContext.getQueryManager(RepositoryConstants.WEBSITE).getSupportedQueryLanguages();
              supportedLanguages = (String[]) ArrayUtils.removeElement(supportedLanguages, javax.jcr.query.Query.JCR_JQOM) ;
  
              final Iterator<String> iter = ContentRepository.getAllRepositoryNames();
              while(iter.hasNext()) {
                  repositories.add(iter.next());
              }
              Collections.sort(repositories, String.CASE_INSENSITIVE_ORDER);
  
          } catch (RepositoryException e) {
              this.result = e.getMessage();
              log.error("An error occurred while retrieving supported query languages.", e);
          }
      }
 
 
     public String dump() {
         if (StringUtils.isNotEmpty(repository) && StringUtils.isNotEmpty(path)) {
             Content node = ContentUtil.getContent(repository, path);
             if (node == null) {
                 return "path not found: " + this.path;
             }
             result = DumperUtil.dump(node, level);
         }
         return VIEW_SHOW;
     }
 
     public String query() {
         final long start = System.currentTimeMillis();
         final Collection<Content> nodes;
         try {
             nodes = QueryUtil.exceptionThrowingQuery(repository, statement, language, this.itemType);
         } catch (Throwable e) {
             this.result = e.getMessage() != null ? e.getMessage() : e.toString();
             log.error("Error in JCR query:", e);
             return VIEW_SHOW;
         }
         final StringBuilder sb = new StringBuilder();
         sb.append(nodes.size());
         sb.append(" nodes returned in ");
         sb.append(System.currentTimeMillis() - start);
         sb.append("ms\n");
 
         for (Iterator<Content> iter = nodes.iterator(); iter.hasNext();) {
             Content node = iter.next();
             sb.append(node.getHandle());
             sb.append("\n");
         }
 
         this.result = sb.toString();
         return VIEW_SHOW;
     }
 
     public String delete() {
         try {
             MgnlContext.getHierarchyManager(repository).delete(path);
         }
         catch (Exception e) {
             result = e.toString();
         }
         return VIEW_SHOW;
     }
 
     public Iterator getRepositories() {
         return repositories.iterator();
     }
 
     public String[] getLanguages() throws RepositoryException {
         return supportedLanguages;
     }
 
     public int getLevel() {
         return level;
     }
 
     public void setLevel(int level) {
         this.level = level;
     }
 
 
     public String getPath() {
         return path;
     }
 
 
     public void setPath(String path) {
         this.path = path;
     }
 
 
     public String getRepository() {
         return repository;
     }
 
 
     public void setRepository(String repositroy) {
         this.repository = repositroy;
     }
 
 
     public String getResult() {
         return result;
     }
 
 
     public String getStatement() {
         return statement;
     }
 
 
     public void setStatement(String statement) {
         this.statement = statement;
     }
 
 
     public String getLanguage() {
         return language;
     }
 
 
     public void setLanguage(String language) {
         this.language = language;
     }
 
 
     public String getItemType() {
         return itemType;
     }
 
 
     public void setItemType(String itemType) {
         this.itemType = itemType;
     }
 
 }