cs408team3.wikidroid.search.WikiDroidHttpClient.java Source code

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Here is the source code for cs408team3.wikidroid.search.WikiDroidHttpClient.java

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package cs408team3.wikidroid.search;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.net.Uri;
import android.net.http.AndroidHttpClient;

public class WikiDroidHttpClient {

    private static final String TAG = "WikiDroidHttpClient";

    private static final String USER_AGENT = "Mozilla/5.0";
    private static final String API_KEY = "AIzaSyAaRUVbkeSktuHiFFru6lMlC7SbS7ju5gA";
    private static final String SEARCH_ENGINE_ID = "015353232511339500776:ppncxs5ywr4";
    private static final String QUERY_FIELDS = "items(displayLink,link,title)";

    private final AndroidHttpClient mHttpClient;

    public WikiDroidHttpClient() {
        mHttpClient = AndroidHttpClient.newInstance(USER_AGENT);
    }

    public ArrayList<QueryContentHolder> JSONToArray(String JSONString) {
        try {
            JSONObject json = new JSONObject(JSONString);

            JSONArray items = (JSONArray) json.get("items");
            ArrayList<QueryContentHolder> linksFounded = null;

            if (items != null && items.length() > 0) {
                linksFounded = new ArrayList<QueryContentHolder>(items.length());
            } else {
                return null;
            }

            for (int i = 0; i < items.length(); i++) {
                try {
                    JSONObject aux = items.getJSONObject(i);
                    linksFounded.add(new QueryContentHolder((String) aux.get("title"), (String) aux.get("link"),
                            (String) aux.get("displayLink")));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

            return linksFounded;
        } catch (JSONException e) {
            e.printStackTrace();
        }

        return null;
    }

    public String searchGoogle(String content) {
        String result = null;
        String query = "";
        Uri q = new Uri.Builder().scheme("https").authority("www.googleapis.com").path("/customsearch/v1")
                .appendQueryParameter("key", API_KEY).appendQueryParameter("cx", SEARCH_ENGINE_ID)
                .appendQueryParameter("q", content).appendQueryParameter("cref", "*.wikipedia.org/*")
                .appendQueryParameter("fields", QUERY_FIELDS).build();
        query = q.toString();
        for (int i = 0; i < 2; i++) {
            try {
                result = sendGet(query);
                return result;
            } catch (IllegalArgumentException ex) {
                Logger.getLogger(WikiDroidHttpClient.class.getName()).log(Level.SEVERE, null, ex);
                result = "wrong url";
                return result;
            } catch (ClientProtocolException ex) {
                Logger.getLogger(WikiDroidHttpClient.class.getName()).log(Level.SEVERE, null, ex);
            } catch (IOException ex) {
                Logger.getLogger(WikiDroidHttpClient.class.getName()).log(Level.SEVERE, null, ex);
                result = "IOException";
                return result;
            }

        }
        return null;
    }

    public String sendGet(String URL) throws IllegalArgumentException, IOException, ClientProtocolException {
        HttpGet request = new HttpGet(URL);

        HttpResponse response = mHttpClient.execute(request);

        BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

        StringBuffer result = new StringBuffer();
        String line = "";
        while ((line = rd.readLine()) != null) {
            result.append(line);
        }

        return result.toString();
    }

    public void close() {
        mHttpClient.close();
    }

}