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.cmds;
  
  import org.apache.jena.cmd.CmdException;
  import org.apache.jena.atlas.json.JsonException;
  import org.apache.jena.atlas.json.JsonObject;
  import org.apache.jena.atlas.web.HttpException;
  
  /** List a new log */
  public class pingserver extends DeltaCmd {
  
      public static void main(String... args) {
          new pingserver(args).mainRun();
      }
  
      public pingserver(String[] argv) {
          super(argv) ;
          super.add(argDataSourceURI);
      }
  
      @Override
      protected String getSummary() {
          return getCommandName()+" --server URL";
      }
  
      @Override
      protected void execCmd() {
          ping();
      }
  
      protected void ping() {
          try {
              JsonObject obj = dLink.ping();
              System.out.println(obj);
          } catch (HttpException ex) {
              throw new CmdException(messageFromHttpException(ex));
          } catch (JsonException ex) {
              throw new CmdException("Not an RDF Patch server");
          }
      }
  
      @Override
      protected void checkForMandatoryArgs() {}
  }
  