Android Open Source - bv-android-sdk Bazaar Product

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License

The source code is released under:
Apache License
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Java Source Code

package com.bazaarvoice.example.browseproducts;
//from w  w  w.j a v  a 2 s . co  m
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;

import org.json.JSONException;
import org.json.JSONObject;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Log;

import com.bazaarvoice.OnBazaarResponse;

/**
 * BazaarProduct.java <br>
 * ReviewSubmissionExample<br>
 * 
 * <p>
 * This is a very basic class used to represent a product in the Bazaarvoice
 * system for the use of this example app.
 * 
 * <p>
 * <b>Note: This does not include all functionality of the Bazaarvoice
 * system.</b>
 * 
 * <p>
 * Created on 6/29/12. Copyright (c) 2012 BazaarVoice. All rights reserved.
 * 
 * @author Bazaarvoice Engineering
 */
public class BazaarProduct implements Parcelable {

  /**
   * Brand
   * 
   * <p>
   * This is a simple class that represents the brand of a BazaarProduct.
   * 
   * <p>
   * Created on 6/29/12. Copyright (c) 2012 BazaarVoice. All rights reserved.
   * 
   * @author Bazaarvoice Engineering
   */
  public class Brand {
    private String name;
    private String id;

    /**
     * Creates a brand from a name and an ID.
     * 
     * @param n
     *            the name
     * @param i
     *            the id
     */
    public Brand(String n, String i) {
      name = n;
      id = i;
    }

    /**
     * Creates a brand from a json object representing a brand.
     * 
     * @param brand
     *            the json object representing a brand
     * @throws JSONException
     */
    public Brand(JSONObject brand) {
      try {
        name = brand.getString("Name");
      } catch (JSONException e) {
        Log.d("Parsing Error", "No JSON Value for name");
      }
      try {
        id = brand.getString("Id");
      } catch (JSONException e) {
        Log.d("Parsing Error", "No JSON Value for id");
      }
    }

    /**
     * @return the name
     */
    public String getName() {
      return name;
    }

    /**
     * @return the id
     */
    public String getId() {
      return id;
    }

    /**
     * @param name
     *            the name to set
     */
    public void setName(String name) {
      this.name = name;
    }

    /**
     * @param id
     *            the id to set
     */
    public void setId(String id) {
      this.id = id;
    }
  }

  protected String TAG = "BazaarProduct";

  private String name;
  private Brand brand;
  private String description;
  private String catId;
  private String imgUrl;
  private Bitmap imageBitmap;
  private String prodId;
  private ArrayList<BazaarReview> reviews;
  private double averageRating;
  private int numReviews;

  /**
   * Creates a BazaarProduct from a json object representing a product.
   * 
   * @param product
   *            the json object representing a product
   * @throws JSONException
   */
  public BazaarProduct(JSONObject product) throws JSONException {
    name = product.getString("Name");
    brand = new Brand(product.getJSONObject("Brand"));
    description = product.getString("Description").replaceAll("  ", "").replaceAll("\n", "");
    catId = product.getString("CategoryId");
    imgUrl = product.getString("ImageUrl");
    prodId = product.getString("Id");
    extractStatistics(product);
    reviews = new ArrayList<BazaarReview>();
  }

  /**
   * Creates an empty BazaarProduct, but instantiates the review list.
   */
  public BazaarProduct() {
    reviews = new ArrayList<BazaarReview>();
  }

  /**
   * Pulls statistics information out of the json product result only if they
   * exist.
   * 
   * @param product
   *            the json object representing a product
   * @throws JSONException
   *             if a parameter is missing
   */
  private void extractStatistics(JSONObject product) throws JSONException {
    JSONObject reviewStats = product.optJSONObject("ReviewStatistics");
    if (reviewStats != null) {
      setAverageRating(reviewStats.optDouble("AverageOverallRating"));
      numReviews = reviewStats.getInt("TotalReviewCount");
    }
  }

  /**
   * Downloads the product image and internalizes it.
   * 
   * @param listener
   *            a callback for when the download completes
   */
  public void downloadImage(final OnImageDownloadComplete listener) {
    Thread t = new Thread(new Runnable() {

      @Override
      public void run() {
        ImageDownloader downloader = new ImageDownloader();
        imageBitmap = downloader.download(imgUrl);
        listener.onFinish(imageBitmap);
      }

    });
    t.start();
  }

  /**
   * Downloads the reviews for this product. The responsibility of storing the
   * reviews is on the caller.
   * 
   * @param listener
   *            a callback for when the response is received
   */
  public void downloadReviews(OnBazaarResponse listener) {
    reviews.clear();
    BazaarFunctions.runReviewQuery(prodId, listener);
  }

  /**
   * Adds a review to the product's review list
   * 
   * @param newReview
   *            the review to add
   */
  public void addReview(BazaarReview newReview) {
    reviews.add(newReview);
  }

  /**
   * @return the averageRating
   */
  public double getAverageRating() {
    return averageRating;
  }

  /**
   * @return the reviews
   */
  public ArrayList<BazaarReview> getReviews() {
    return reviews;
  }

  /**
   * @return the name
   */
  public String getName() {
    return name;
  }

  /**
   * @return the brand
   */
  public Brand getBrand() {
    return brand;
  }

  /**
   * @return the description
   */
  public String getDescription() {
    return description;
  }

  /**
   * @return the catID
   */
  public String getCatID() {
    return catId;
  }

  /**
   * @return the img
   */
  public Bitmap getImageBitmap() {
    return imageBitmap;
  }

  /**
   * @return the prodID
   */
  public String getProdID() {
    return prodId;
  }

  /**
   * @return the numReviews
   */
  public int getNumReviews() {
    return numReviews;
  }

  /**
   * @param name
   *            the name to set
   */
  public void setName(String name) {
    this.name = name;
  }

  /**
   * @param brand
   *            the brand to set
   */
  public void setBrand(Brand brand) {
    this.brand = brand;
  }

  /**
   * @param description
   *            the description to set
   */
  public void setDescription(String description) {
    this.description = description;
  }

  /**
   * @param catID
   *            the catID to set
   */
  public void setCatID(String catID) {
    this.catId = catID;
  }

  /**
   * @param prodID
   *            the prodID to set
   */
  public void setProdID(String prodID) {
    this.prodId = prodID;
  }

  /**
   * @param numReviews
   *            the numReviews to set
   */
  public void setNumReviews(int numReviews) {
    this.numReviews = numReviews;
  }

  /**
   * Handles NaN values correctly.
   * 
   * @param averageRating
   *            the averageRating to set
   */
  public void setAverageRating(double averageRating) {
    if (Double.isNaN(averageRating))
      this.averageRating = -1;
    else
      this.averageRating = averageRating;
  }

  /*
   * Parcel methods and constructors
   */

  /**
   * Constructs a BazaarProduct from a parcel that has another instance of
   * this class in it.
   * 
   * @param parcel
   *            the parcel holding an instance of BazaarProduct
   */
  private BazaarProduct(Parcel parcel) {
    readFromParcel(parcel);
  }

  /**
   * A Creator object used by the android system when unpacking a parcelled
   * instance of a BazaarProduct object.
   */
  public static final Parcelable.Creator<BazaarProduct> CREATOR = new Parcelable.Creator<BazaarProduct>() {

    @Override
    public BazaarProduct createFromParcel(Parcel source) {
      return new BazaarProduct(source);
    }

    @Override
    public BazaarProduct[] newArray(int size) {
      return new BazaarProduct[size];
    }
  };

  @Override
  public int describeContents() {
    return 0;
  }

  /**
   * Writes the object to a parcel. It writes the image as a byte array, or an
   * empty one if it is null.
   */
  @Override
  public void writeToParcel(Parcel dest, int flags) {
    dest.writeString(brand.getName());
    dest.writeString(brand.getId());
    dest.writeString(name);
    dest.writeString(description);
    dest.writeString(catId);
    dest.writeString(imgUrl);
    dest.writeString(prodId);
    dest.writeDouble(averageRating);
    dest.writeInt(numReviews);
    dest.writeList(reviews);

    if (imageBitmap != null) {
      ByteArrayOutputStream stream = new ByteArrayOutputStream();
      imageBitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
      byte[] byteArray = stream.toByteArray();
      dest.writeByteArray(byteArray);
    } else {
      dest.writeByteArray(new byte[0]);
    }
  }

  /**
   * Reads the fields of the parcelled object into this instance.
   * 
   * <b>Note: </b>The fields must be read in the same order they were written.
   * 
   * @param parcel
   */
  public void readFromParcel(Parcel parcel) {
    String brandName = parcel.readString();
    String brandId = parcel.readString();
    brand = new Brand(brandName, brandId);
    name = parcel.readString();
    description = parcel.readString();
    catId = parcel.readString();
    imgUrl = parcel.readString();
    prodId = parcel.readString();
    averageRating = parcel.readDouble();
    numReviews = parcel.readInt();
    reviews = new ArrayList<BazaarReview>();
    parcel.readList(reviews, BazaarReview.class.getClassLoader());

    byte[] byteArray = parcel.createByteArray();
    if (byteArray.length == 0) {
      imageBitmap = null;
    } else {
      imageBitmap = BitmapFactory.decodeByteArray(byteArray, 0,
          byteArray.length);
    }
  }

}
Java Source Code List
