data.BookshareWS.java Source code

Introduction

Here is the source code for data.BookshareWS.java

Source

package data;

import domain.util.URIGenerator;
import domain.Book;
import domain.Person;
import domain.Organization;
import java.net.HttpURLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Node;
import org.jaxen.*;
import rdfmodel.RDFModel;

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Stefan
 */
public class BookshareWS extends WebService {

    private boolean kraj = false;
    private int trenutnaStrana = 1;
    private String baseUrl = "https://api.bookshare.org/book/search/category/Computers%20and%20Internet/page/";
    String apiKey = "?api_key=mtdgrvurm6vhszb7xxtxc768";

    @Override
    public void parse(String tekst) throws Exception {
        try {
            //List<Book> lista=new ArrayList<>();
            Document document = DocumentHelper.parseText(tekst);

            List list = document.selectNodes("//result");
            //System.out.println("Velicina liste "+list.size());
            if (list == null || list.size() == 0) {
                System.out.println("Lista je null");
                kraj = true;
            } else {
                System.out.println("Trenutni broj strana " + trenutnaStrana);
                for (int i = 0; i < list.size(); i++) {
                    Book b = new Book();
                    b.setUri(URIGenerator.generateUri(b));
                    Node node = (Node) list.get(i);
                    b.setTitle(node.selectSingleNode("title").getText());

                    Node isbn = node.selectSingleNode("isbn13");
                    if (isbn != null) {
                        b.setIsbn(isbn.getText());
                    }
                    List autori = node.selectNodes("author");

                    for (int j = 0; j < autori.size(); j++) {
                        Person p = new Person();
                        p.setUri(URIGenerator.generateUri(p));
                        p.setName(((Node) autori.get(j)).getText());
                        b.getAuthors().add(p);
                    }

                    Organization o = new Organization();
                    o.setUri(URIGenerator.generateUri(o));
                    Node publisher = node.selectSingleNode("publisher");
                    if (publisher != null) {
                        o.setName(publisher.getText());
                    }
                    b.setPublisher(o);

                    Node description = node.selectSingleNode("brief-synopsis");
                    if (description != null) {
                        b.setDescription(description.getText());
                    }
                    lista.add(b);

                }
                trenutnaStrana++;
                //kraj=true;
            }

        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    @Override
    public String getUrl() {
        return baseUrl + trenutnaStrana + apiKey;
        //return "https://api.bookshare.org/book/search/category/Computers%20and%20Internet?api_key=mtdgrvurm6vhszb7xxtxc768";
    }

    @Override
    public void setRequestType(HttpURLConnection conn) throws Exception {
        try {
            conn.setRequestMethod("GET");
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    @Override
    public void setDataType(HttpURLConnection conn) {
        conn.setRequestProperty("Accept", "application/xml");
    }

    @Override
    public boolean daLiJeKraj() {
        return kraj;
    }

}