/*

  * Licensed to the Apache Software Foundation (ASF) under one or more

  * contributor license agreements.  See the NOTICE file distributed with

  * this work for additional information regarding copyright ownership.

  * The ASF licenses this file to You 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.

  */

 package org.apache.any23.writer;

 import org.apache.any23.extractor.ExtractionContext;

 import org.openrdf.model.Resource;

 import org.openrdf.model.URI;

 import org.openrdf.model.Value;

 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 /**

  * A simple {@link TripleHandler} that merely counts the number

  * of triples it has received.

  *

  * @author Richard Cyganiak (richard@cyganiak.de)

  * @author Michele Mostarda (mostarda@fbk.eu)

  */

 public class CountingTripleHandler implements TripleHandler {

     private static final Logger logger = LoggerFactory.getLogger(CountingTripleHandler.class);

     private final boolean logTriples;

     private int count = 0;

     public CountingTripleHandler(boolean logTriples) {

         this.logTriples = logTriples;

     }

     public CountingTripleHandler() {

         this(false);

     }

     public int getCount() {

         return count;

     }

     public void reset() {

         count = 0;

     }

     public void startDocument(URI documentURI) throws TripleHandlerException {

         // ignore

     }

     public void openContext(ExtractionContext context) throws TripleHandlerException {

         // ignore

     }

     public void closeContext(ExtractionContext context) throws TripleHandlerException {

         // ignore

     }

     public void receiveTriple(Resource s, URI p, Value o, URI g, ExtractionContext context)

     throws TripleHandlerException {

         count++;

         if(logTriples) logger.debug( String.format("%s %s %s %s %s\n", s, p, o, g, context) );

     }

     public void receiveNamespace(String prefix, String uri, ExtractionContext context)

     throws TripleHandlerException {

         // ignore

     }

     public void close() throws TripleHandlerException {

         // ignore

     }

     public void endDocument(URI documentURI) throws TripleHandlerException {

         //ignore

     }

     public void setContentLength(long contentLength) {

         //ignore

     }

 }