Android Open Source - WineDB Semantics3 Wine Scraper

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License

The source code is released under:

MIT License

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Java Source Code

package com.selesse.android.winedb.winescraper.impl;
/* w  ww  .  j a va 2 s.c om*/
import android.util.Log;
import com.google.common.collect.Lists;
import com.google.common.io.CharStreams;
import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
import com.selesse.android.winedb.database.Wine;
import com.selesse.android.winedb.priv.Semantics3Key;
import com.selesse.android.winedb.winescraper.WineScraper;

import javax.net.ssl.HttpsURLConnection;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.List;

public class Semantics3WineScraper implements WineScraper {
    private static final String TAG = Semantics3WineScraper.class.getSimpleName();
    private String url;
    private List<Exception> errors;

    public Semantics3WineScraper(String barcode) {
        errors = Lists.newArrayList();
        // TODO: "prod" mode (1k hits/day) requires OATH; "test" mode (100 hits/day) is simpler for now
        url = "https://api.semantics3.com/test/v1/products?q=";
        try {
            String request = URLEncoder.encode("{\"upc\":\"" + barcode + "\"}", "utf-8");
            url += request;
        } catch (UnsupportedEncodingException e) {
            Log.e(TAG, "Couldn't encode barcode " + barcode, e);
        }
    }

    @Override
    public List<Wine> scrape() {
        List<Wine> scrapedWines = Lists.newArrayList();
        try {
            URL url = new URL(getQueryUrl());
            HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
            connection.setRequestProperty("api_key", Semantics3Key.getKey());

            int responseCode = connection.getResponseCode();

            if (responseCode != 200) {
                String errorResponse = CharStreams.toString(new InputStreamReader(connection.getErrorStream()));

                throw new IOException("Error querying: got response code " + responseCode +
                        " from server with message " + errorResponse);
            }
            String jsonResponse = CharStreams.toString(new InputStreamReader(connection.getInputStream()));
            Log.i(TAG, "Semantics3 JSON response was: \n" + jsonResponse);

            Gson gson = new Gson();
            Semantics3Response response = gson.fromJson(jsonResponse, Semantics3Response.class);
            if (response.getResultsSize() > 0) {
                scrapedWines = response.convertResponsesToWineList();
            }
        } catch (JsonSyntaxException e) {
            Log.e(TAG, "JsonSyntaxException thrown: " + e.toString());
            errors.add(e);
        } catch (IOException e) {
            Log.e(TAG, "IOException thrown: " + e.toString());
            errors.add(e);
        }

        return scrapedWines;
    }

    @Override
    public String getQueryUrl() {
        return url;
    }

    @Override
    public List<Exception> getErrors() {
        return errors;
    }

    @Override
    public String getSourceName() { return "Semantics3"; }
}

Java Source Code List