Connects to the official DBLP site, fetches the HTML document for a specified search request (first name + last name) and returns a TreeMap with names of persons mapped to their DBLP links - Java java.sql

Java examples for java.sql:Connection

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Description

Connects to the official DBLP site, fetches the HTML document for a specified search request (first name + last name) and returns a TreeMap with names of persons mapped to their DBLP links

Demo Code


//package com.java2s;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.TreeMap;

public class Main {
    private final static String DBLP_SEARCH = "http://dblp.uni-trier.de/search/author?author=";

    /**/* w ww  .  ja v a  2 s. co m*/
     * Connects to the official DBLP site, fetches the HTML document for a
     * specified search request (first name + last name) and returns a TreeMap
     * with names of persons mapped to their DBLP links
     * 
     * @param firstName
     * @param lastName
     * @return
     */
    public static TreeMap<String, String> fetchByName(String firstName,
            String lastName) {

        try {
            // e.g. url =
            // http://dblp.uni-trier.de/search/author?author=wolfgang+estgfaeller";
            URL url = new URL(DBLP_SEARCH + firstName + "+" + lastName);
            URLConnection urlcon = url.openConnection();
            return filterResult(urlcon.getInputStream(), url);
        } catch (MalformedURLException e) {
            e.printStackTrace();
            return null;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }

    }

    private static TreeMap<String, String> filterResult(InputStream is,
            URL url) {
        TreeMap<String, String> result = new TreeMap<String, String>();

        // read from URL
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        String input;
        try {
            // filter lines that start with <li> and end with </li>
            while ((input = br.readLine()) != null) {
                if (input.startsWith("<html><head><title>DBLP:")) {
                    result.put("READYLINK", url.toString());
                    break;
                }
                if (input.startsWith("<li>") && input.endsWith("</li>")) {
                    // split the line and put the name and the link in the
                    // TreeMap
                    String[] temp = input
                            .split("<li><a href=\"|\">|</a></li>");
                    result.put(temp[1], temp[2]);
                }
            }
            return result;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

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