source: trunk/www/common/columns/ajax.jsp @ 7768

<%-- $Id $
  ------------------------------------------------------------------
  Copyright (C) 2015 Nicklas Nordborg

  This file is part of BASE - BioArray Software Environment.
  Available at http://base.thep.lu.se/

  BASE is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 3
  of the License, or (at your option) any later version.

  BASE is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with BASE. If not, see <http://www.gnu.org/licenses/>.
  ------------------------------------------------------------------

--%>
<%@ page pageEncoding="UTF-8" session="false" contentType="application/json"
  import="net.sf.basedb.core.SessionControl"
  import="net.sf.basedb.core.DbControl"
  import="net.sf.basedb.core.AnnotationType"
  import="net.sf.basedb.core.Annotation"
  import="net.sf.basedb.core.Item"
  import="net.sf.basedb.core.Type"
  import="net.sf.basedb.core.ItemQuery"
  import="net.sf.basedb.core.ItemSubtype"
  import="net.sf.basedb.core.plugin.GuiContext"
  import="net.sf.basedb.util.Values"
  import="net.sf.basedb.util.error.ThrowableUtil"
  import="net.sf.basedb.util.extensions.ExtensionsInvoker"
  import="net.sf.basedb.clients.web.AnnotationUtil"
  import="net.sf.basedb.clients.web.Base"
  import="net.sf.basedb.clients.web.WebException"
  import="net.sf.basedb.clients.web.extensions.JspContext"
  import="net.sf.basedb.clients.web.extensions.ExtensionsControl"
  import="net.sf.basedb.clients.web.extensions.list.ListColumnAction"
  import="net.sf.basedb.clients.web.extensions.list.ListColumnUtil"
  import="org.json.simple.JSONObject"
  import="org.json.simple.JSONArray"
  import="java.util.Arrays"
  import="java.util.List"
  import="java.util.HashSet"
%>
<%
response.setHeader("Cache-Control", "no-cache, max-age=0");
final SessionControl sc = Base.getExistingSessionControl(pageContext, true);
final String ID = sc.getId();
final String cmd = request.getParameter("cmd");
final String root = request.getContextPath()+"/";
final Item itemType = Item.valueOf(request.getParameter("itemType"));
DbControl dc = null;
out.clear();
JSONObject json = new JSONObject();
json.put("status", "ok");
try
{
  if ("GetSubtypesAndAnnotationTypes".equals(cmd))
  {
    dc = sc.newDbControl();

    ItemQuery<ItemSubtype> subtypeQuery = Base.getSubtypesQuery(itemType);
    JSONArray jsonSubtypes = new JSONArray();
    for (ItemSubtype st : subtypeQuery.list(dc))
    {
      JSONObject jsonSt = new JSONObject();
      jsonSt.put("id", st.getId());
      jsonSt.put("name", st.getName());
      jsonSubtypes.add(jsonSt);
    }
    json.put("subtypes", jsonSubtypes);
    
    ItemQuery<AnnotationType> annotationTypeQuery = Base.getAnnotationTypesQuery(itemType);
    JSONArray jsonAnnotationTypes = new JSONArray();
    for (AnnotationType at : annotationTypeQuery.list(dc))
    {
      JSONObject jsonAt = new JSONObject();
      jsonAt.put("id", at.getId());
      jsonAt.put("name", at.getName());
      jsonAnnotationTypes.add(jsonAt);
    }
    json.put("annotationTypes", jsonAnnotationTypes);
    
  }
  else if ("GetLazyParentColumns".equals(cmd))
  {
    String subContext = Values.getStringOrNull(request.getParameter("subcontext"));
    GuiContext guiContext = GuiContext.list(itemType, subContext);
    Integer[] items = Values.getInt(request.getParameter("items").split(","));
    dc = sc.newDbControl();
    
    JspContext jspContext = ExtensionsControl.createContext(dc, pageContext, guiContext, null);
    jspContext.setAttribute("lazy-loading", false);
    ExtensionsInvoker<ListColumnAction<Object,?>> columnsInvoker = ListColumnUtil.useExtensions(jspContext);
    
    JSONArray jsonLazy = new JSONArray();
    int index = 0;
    for (Integer id : items)
    {
      Object item = itemType.getById(dc, id);
      JSONObject jsonItem = new JSONObject();
      JSONArray jsonCols = new JSONArray();
      jsonItem.put("id", id);
      jsonItem.put("data", jsonCols);
      
      for (ListColumnAction col : columnsInvoker)
      {
        if (col.getId().startsWith("/"))
        {
          jsonCols.add(col.getFormatter().format(col.getValue(dc, item)));
        }
      }
      jsonLazy.add(jsonItem);
    }
    json.put("items", jsonLazy);
  }
  else
  {
    throw new WebException("popup", "Invalid command", "The command {1} is not recognised as a valid command.", cmd);
  }
}
catch (Throwable t)
{
  t.printStackTrace();
  json.clear();
  json.put("status", "error");
  json.put("message", t.getMessage());
  json.put("stacktrace", ThrowableUtil.stackTraceToString(t));
}
finally
{
  json.writeJSONString(out);
  out.flush();
  if (dc != null) dc.close();
}
%>