package com.company;

import com.flickr4java.flickr.Flickr;

import com.flickr4java.flickr.FlickrException;

import com.flickr4java.flickr.REST;

import com.flickr4java.flickr.photos.Photo;

import com.flickr4java.flickr.photos.PhotoList;

import com.flickr4java.flickr.photos.SearchParameters;

import javax.imageio.ImageIO;

import java.io.File;

import java.io.IOException;

import java.util.Iterator;

import java.util.prefs.Preferences;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

/*

* - Java 7 is needed

* - insert your api- and secretkey

*

* start main with wanted tags as parameter, for example: FlickrCrawler.main(Sunset) and all pics will be saved in original size or large to pics\sunset\...

*/

public class FlickrCrawler {

private static String path = "";

private static Preferences userPrefs = Preferences.userNodeForPackage(FlickrCrawler.class);

// convert filename to clean filename

public static String convertToFileSystemChar(String name) {

String erg = "";

Matcher m = Pattern.compile("[a-z0-9 _#&@\\[\\(\\)\\]\\-\\.]", Pattern.CASE_INSENSITIVE).matcher(name);

while (m.find()) {

erg += name.substring(m.start(), m.end());

}

if (erg.length() > 200) {

erg = erg.substring(0, 200);

System.out.println("cut filename: " + erg);

}

return erg;

}

public static boolean saveImage(Flickr f, Photo p) {

String cleanTitle = convertToFileSystemChar(p.getTitle());

File orgFile = new File(path + File.separator + cleanTitle + "_" + p.getId() + "_o." + p.getOriginalFormat());

File largeFile = new File(path + File.separator + cleanTitle + "_" + p.getId() + "_b." + p.getOriginalFormat());

if (orgFile.exists() || largeFile.exists()) {

System.out.println(p.getTitle() + "\t" + p.getLargeUrl() + " skipped!");

return false;

}

try {

Photo nfo = f.getPhotosInterface().getInfo(p.getId(), null);

if (nfo.getOriginalSecret().isEmpty()) {

ImageIO.write(p.getLargeImage(), p.getOriginalFormat(), largeFile);

System.out.println(p.getTitle() + "\t" + p.getLargeUrl() + " was written to " + largeFile.getName());

} else {

p.setOriginalSecret(nfo.getOriginalSecret());

ImageIO.write(p.getOriginalImage(), p.getOriginalFormat(), orgFile);

System.out.println(p.getTitle() + "\t" + p.getOriginalUrl() + " was written to " + orgFile.getName());

}

} catch (FlickrException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return true;

}

public static void main(String[] args) {

if (args.length == 0) {

System.out.println("Parameter are needed as for searching. Example: FlickrCrawler.java sunset");

return;

}

String apikey = "apikey";

String secret = "secret";

Flickr flickr = new Flickr(apikey, secret, new REST());

SearchParameters searchParameters = new SearchParameters();

searchParameters.setAccuracy(1);

StringBuilder tagsBuilder = new StringBuilder();

for (String tmp : args) {

tagsBuilder.append(" " + tmp);

}

path = "pics" + File.separator + tagsBuilder.toString().substring(1);

new File(path).mkdirs();

searchParameters.setTags(args);

for (int i = userPrefs.getInt(path, 0); true; i++) {

userPrefs.putInt( path, i );

System.out.println("\tcurrent page: " + userPrefs.getInt(path, 0));

try {

PhotoList<Photo> list = flickr.getPhotosInterface().search(searchParameters, 500, i);

if (list.isEmpty())

break;

Iterator itr = list.iterator();

while (itr.hasNext()) {

saveImage(flickr, (Photo) itr.next());

}

} catch (FlickrException e) {

e.printStackTrace();

}

}

}

}