content: /*
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   *
   *  See the NOTICE file distributed with this work for additional
   *  information regarding copyright ownership.
   */
  
  package org.seaborne.delta;
  
  import org.apache.jena.atlas.json.JsonObject;
  import org.apache.jena.atlas.lib.DateTimeUtils;
  import org.seaborne.delta.lib.JSONX;
  
  public class DeltaLib {
  
      /** Generate a JsonObject that is the esponse to a "ping".
       *  The object includes a timestamp.
       *  <pre>
       *  { "value" : timestamp }
       *  </pre>
       */
      public static JsonObject ping() {
          String now = DateTimeUtils.nowAsXSDDateTimeString();
          JsonObject r = JSONX.buildObject(b->{
              b.pair(DeltaConst.F_VALUE, now);
          });
          return r ;
      }
  }
  