ca.christophersaunders.tutorials.sqlite.picasa.PicasaImage.java Source code

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Here is the source code for ca.christophersaunders.tutorials.sqlite.picasa.PicasaImage.java

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/*******************************************************************************
 * Copyright (c) 2010 - Christopher Saunders
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 ******************************************************************************/
package ca.christophersaunders.tutorials.sqlite.picasa;

import java.io.BufferedInputStream;
import java.io.InputStream;
import java.lang.ref.WeakReference;
import java.net.URL;
import java.net.URLConnection;
import java.sql.Date;

import org.apache.http.util.ByteArrayBuffer;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.util.Log;

public class PicasaImage {

    private String imageLocation;
    private Bitmap image;
    private byte[] imageBytes;
    private String thumbnailLocation;
    private Bitmap thumbnail;
    private byte[] thumbnailBytes;
    private String title;
    private String author;
    private Date publicationDate;

    public byte[] getImageBytes() {
        if (imageBytes == null) {
            imageBytes = getBitmapBytesForLocation(imageLocation);
        }
        return imageBytes;
    }

    public void setImageBytes(byte[] imageBytes) {
        this.imageBytes = imageBytes;
    }

    public Bitmap getImage() {
        if (image == null && imageLocation != null) {
            getImageBytes();
            image = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length);
        }
        return image;
    }

    public void setImage(Bitmap image) {
        this.image = image;
    }

    public byte[] getThumbnailBytes() {
        if (thumbnailBytes == null) {
            thumbnailBytes = getBitmapBytesForLocation(thumbnailLocation);
        }
        return thumbnailBytes;
    }

    public void setThumbnailBytes(byte[] thumbnailBytes) {
        this.thumbnailBytes = thumbnailBytes;
    }

    public Bitmap getThumbnail() {
        if (thumbnail == null && thumbnailLocation != null) {
            getThumbnailBytes();
        }
        if (thumbnail == null && thumbnailBytes.length > 0) {
            thumbnail = BitmapFactory.decodeByteArray(thumbnailBytes, 0, thumbnailBytes.length);
        }
        return thumbnail;
    }

    public void setThumbnail(Bitmap thumbnail) {
        this.thumbnail = thumbnail;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getImageLocation() {
        return imageLocation;
    }

    public void setImageLocation(String imageLocation) {
        this.imageLocation = imageLocation;
    }

    public String getThumbnailLocation() {
        return thumbnailLocation;
    }

    public void setThumbnailLocation(String thumbnailLocation) {
        this.thumbnailLocation = thumbnailLocation;
    }

    public Date getPublicationDate() {
        return publicationDate;
    }

    public void setPublicationDate(Date publicationDate) {
        this.publicationDate = publicationDate;
    }

    //-- private utility functions
    private byte[] getBitmapBytesForLocation(String location) {
        try {
            URL thumbnailUrl = new URL(location);
            URLConnection conn = thumbnailUrl.openConnection();

            InputStream is = conn.getInputStream();
            BufferedInputStream bis = new BufferedInputStream(is);

            ByteArrayBuffer imageBytesBuffer = new ByteArrayBuffer(0x2000);
            byte[] buffer = new byte[1024];
            int current = 0;
            while ((current = bis.read(buffer)) != -1) {
                imageBytesBuffer.append(buffer, 0, current);
            }

            byte[] imageBytes = imageBytesBuffer.toByteArray();
            return imageBytes;

        } catch (Exception gottaCatchemAll) {
            Log.w("PicasaImage", "Gotta catch em' all!");
            Log.e("PicasaImage", String.format("Location string was probably bad: %s", location));
            gottaCatchemAll.printStackTrace();
        }
        return new byte[0];
    }
}