| /** |
| * 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.nutch.indexer.html; |
| |
| import java.io.ByteArrayInputStream; |
| import java.nio.ByteBuffer; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Scanner; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.nutch.indexer.IndexingException; |
| import org.apache.nutch.indexer.IndexingFilter; |
| import org.apache.nutch.indexer.NutchDocument; |
| import org.apache.nutch.storage.WebPage; |
| import org.apache.nutch.storage.WebPage.Field; |
| import org.apache.nutch.util.MimeUtil; |
| import org.apache.nutch.util.StringUtil; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * Add raw HTML content of a document to the index. |
| */ |
| |
| public class HtmlIndexingFilter implements IndexingFilter { |
| public static final Logger LOG = LoggerFactory.getLogger(HtmlIndexingFilter.class); |
| private Configuration conf; |
| |
| /** |
| * Get the MimeTypes resolver instance. |
| */ |
| private MimeUtil MIME; |
| |
| private static Collection<WebPage.Field> FIELDS = new HashSet<WebPage.Field>(); |
| |
| static { |
| FIELDS.add(WebPage.Field.CONTENT); |
| } |
| |
| @Override |
| public NutchDocument filter(NutchDocument doc, String url, WebPage page) throws IndexingException { |
| addRawContent(doc, page, url); |
| return doc; |
| } |
| |
| |
| private NutchDocument addRawContent(NutchDocument doc, WebPage page, String url) { |
| ByteBuffer raw = page.getContent(); |
| if (raw != null) { |
| if (LOG.isInfoEnabled()) { |
| LOG.info("Html indexing for: " + url.toString()); |
| } |
| ByteArrayInputStream arrayInputStream = new ByteArrayInputStream(raw.array(), raw.arrayOffset() + raw.position(), raw.remaining()); |
| Scanner scanner = new Scanner(arrayInputStream); |
| scanner.useDelimiter("\\Z");//To read all scanner content in one String |
| String data = ""; |
| if (scanner.hasNext()) { |
| data = scanner.next(); |
| } |
| doc.add("rawcontent", StringUtil.cleanField(data)); |
| scanner.close(); |
| } |
| return doc; |
| } |
| |
| |
| public void addIndexBackendOptions(Configuration conf) { |
| } |
| |
| public void setConf(Configuration conf) { |
| this.conf = conf; |
| MIME = new MimeUtil(conf); |
| } |
| |
| public Configuration getConf() { |
| return this.conf; |
| } |
| |
| @Override |
| public Collection<Field> getFields() { |
| return FIELDS; |
| } |
| |
| } |