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/*
* Copyright 2007-2008 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.sun.swingset3.demos.table;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
/**
* Class used to support converting a movie title string into an IMDB URI
* corresponding to that movie's IMDB entry. Since IMDB encodes entries with
* an alpha-numeric key (rather than title), we have to use Yahoo search on the
* title and then screenscrape the search results to find the IMDB key.
*
* @author aim
*/
public class IMDBLink {
private IMDBLink() {
}
/**
* @param movieTitle the title of the movie
* @param year the year the movie was nominated for the oscar
* @return String containing URI for movie's IMDB entry or null if URI could not be found
*/
public static String getMovieURIString(String movieTitle, int year) throws IOException {
ArrayList matches = new ArrayList();
URL url;
BufferedReader reader;
// btw, google rejects the request with a 403 return code!
// URL url = new URL("http://www.google.com/search?q=Dazed+and+confused");
// Thank you, yahoo, for granting our search request :-)
try {
String urlKey = URLEncoder.encode(movieTitle, "UTF-8");
url = new URL("http://search.yahoo.com/search?ei=utf-8&fr=sfp&p=imdb+" +
urlKey + "&iscqry=");
} catch (Exception ex) {
System.err.println(ex);
return null;
}
URLConnection conn = url.openConnection();
conn.connect();
// Get the response from Yahoo search query
reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
// Parse response a find each imdb/titleString result
String line;
String imdbString = ".imdb.com";
String titleStrings[] = {"/title", "/Title"};
while ((line = reader.readLine()) != null) {
for (String titleString : titleStrings) {
String scrapeKey = imdbString + titleString;
int index = line.indexOf(scrapeKey);
if (index != -1) {
// The IMDB key looks something like "tt0032138"
// so we look for the 9 characters after the scrape key
// to construct the full IMDB URI.
// e.g. http://www.imdb.com/title/tt0032138
int len = scrapeKey.length();
String imdbURL = "http://www" +
line.substring(index, index + len) +
line.substring(index + len, index + len + 10);
if (!matches.contains(imdbURL)) {
matches.add(imdbURL);
}
}
}
}
reader.close();
// Since imdb contains entries for multiple movies of the same titleString,
// use the year to find the right entry
if (matches.size() > 1) {
for (String matchURL : matches) {
if (verifyYear(matchURL, year)) {
return matchURL;
}
}
}
return matches.isEmpty()? null : matches.get(0);
}
private static boolean verifyYear(String imdbURL, int movieYear) throws IOException {
boolean yearMatches = false;
URLConnection conn = new URL(imdbURL).openConnection();
conn.connect();
// Get the response
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
int index = line.indexOf("");
if (index != -1) {
// looking for "movie title (YEAR)"
try {
int year = Integer.parseInt(line.substring(index - 5, index - 1));
// Movie may have been made the year prior to oscar award
yearMatches = year == movieYear || year == movieYear - 1;
} catch (NumberFormatException ex) {
// ignore title lines that have other formatting
}
break; // only interested in analyzing the one line
}
}
reader.close();
return yearMatches;
}
}
