alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Lucene example source code file (DemoHTMLParser.java)

This example Lucene source code file (DemoHTMLParser.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

date, date, dateformat, demohtmlparser, docdata, interruptedexception, io, ioexception, parseexception, reader, reader, string, string, stringbuilder, stringbuilder, text, util

The Lucene DemoHTMLParser.java source code

package org.apache.lucene.benchmark.byTask.feeds;

/**
 * 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.
 */

import java.io.IOException;
import java.io.Reader;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.Properties;

/**
 * HTML Parser that is based on Lucene's demo HTML parser.
 */
public class DemoHTMLParser implements org.apache.lucene.benchmark.byTask.feeds.HTMLParser {

  public DocData parse(DocData docData, String name, Date date, String title, Reader reader, DateFormat dateFormat) throws IOException, InterruptedException {
    org.apache.lucene.benchmark.byTask.feeds.demohtml.HTMLParser p = new org.apache.lucene.benchmark.byTask.feeds.demohtml.HTMLParser(reader);
    
    // title
    if (title==null) {
      title = p.getTitle();
    }
    
    // properties 
    Properties props = p.getMetaTags(); 
    // body
    Reader r = p.getReader();
    char c[] = new char[1024];
    StringBuilder bodyBuf = new StringBuilder();
    int n;
    while ((n = r.read(c)) >= 0) {
      if (n>0) {
        bodyBuf.append(c,0,n);
      }
    }
    r.close();
    if (date == null && props.getProperty("date")!=null) {
      try {
        date = dateFormat.parse(props.getProperty("date").trim());
      } catch (ParseException e) {
        // do not fail test just because a date could not be parsed
        System.out.println("ignoring date parse exception (assigning 'now') for: "+props.getProperty("date"));
        date = new Date(); // now 
      }
    }
    
    docData.clear();
    docData.setName(name);
    docData.setBody(bodyBuf.toString());
    docData.setTitle(title);
    docData.setProps(props);
    docData.setDate(date);
    return docData;
  }

}

Other Lucene examples (source code examples)

Here is a short list of links related to this Lucene DemoHTMLParser.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.