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.server.local.handlers;
  
  import org.apache.jena.atlas.logging.FmtLog ;
  import org.seaborne.delta.server.local.Patch;
  import org.seaborne.delta.server.local.PatchHandler;
  import org.apache.jena.rdfpatch.RDFPatchOps;
  import org.apache.jena.rdfpatch.changes.PatchSummary;
  import org.slf4j.Logger ;
  
  /** Log a infroamtion about a patch */
  public class PHandlerLog implements PatchHandler {
      
      private final Logger log ;
      
      public PHandlerLog(Logger log) {
          this.log = log ;
      }
      
      /** Safe handler */
      @Override
      public void handle(Patch patch) {
          
          PatchSummary scc = RDFPatchOps.summary(patch) ;
          FmtLog.info(log,
                      "Patch: Quads: add=%d, delete=%d :: Prefixes: add=%d delete=%d",
                      scc.countAddData, scc.countDeleteData, 
                      scc.countAddPrefix, scc.countDeletePrefix) ;
      }
  }
  