ch.hesso.master.sweetcity.utils.PictureUtils.java Source code

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Here is the source code for ch.hesso.master.sweetcity.utils.PictureUtils.java

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/*
* Copyright 2014-2015 University of Applied Sciences and Arts Western Switzerland
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package ch.hesso.master.sweetcity.utils;

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

import com.amazonaws.ClientConfiguration;
import com.amazonaws.Protocol;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.ObjectMetadata;
import com.amazonaws.services.s3.model.S3Object;
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential;

import java.io.InputStream;
import java.util.Date;

import ch.hesso.master.sweetcity.Constants;
import ch.hesso.master.sweetcity.ConstantsAWS;

/**
 * @author Chavaillaz Johan
 * @author Burri Grgory
 * @author Frank Etienne
 * @version 1.0
 */
public class PictureUtils {

    private static final AWSCredentials AWS_CREDENTIALS = new BasicAWSCredentials(ConstantsAWS.AWS_ACCESS_KEY,
            ConstantsAWS.AWS_SECRET_ACCESS_KEY);

    public static class Key {
        private String key;

        protected Key(String key) {
            this.key = key;
        }

        @Override
        public String toString() {
            return this.key;
        }

        public static Key fromString(String str) {
            return new Key(str);
        }
    }

    public static Key uploadPicture(Bitmap picture, GoogleAccountCredential googleCredential) {
        if (picture == null)
            return null;

        try {
            ClientConfiguration clientConfig = new ClientConfiguration();
            clientConfig.setProtocol(Protocol.HTTP);
            AmazonS3 s3Connection = new AmazonS3Client(AWS_CREDENTIALS, clientConfig);
            s3Connection.setEndpoint(ConstantsAWS.S3_END_POINT);

            ObjectMetadata pictureMetadata = new ObjectMetadata();

            String key = String.format(ConstantsAWS.S3_PICTURE_NAME_FORMAT,
                    googleCredential.getSelectedAccountName(), Constants.DATE_FORMAT_IMAGE.format(new Date()));

            s3Connection.putObject(ConstantsAWS.S3_BUCKET_NAME, key, ImageUtils.bitmapToInputStream(picture),
                    pictureMetadata);

            return new Key(key);
        } catch (Exception e) {
            Log.d(Constants.PROJECT_NAME, e.toString());
        }

        return null;
    }

    public static InputStream getPicture(Key key) {
        if (key == null)
            return null;

        try {
            ClientConfiguration clientConfig = new ClientConfiguration();
            clientConfig.setProtocol(Protocol.HTTP);
            AmazonS3 s3Connection = new AmazonS3Client(AWS_CREDENTIALS, clientConfig);
            s3Connection.setEndpoint(ConstantsAWS.S3_END_POINT);

            S3Object obj = s3Connection.getObject(ConstantsAWS.S3_BUCKET_NAME, key.toString());
            return obj.getObjectContent();
        } catch (Exception e) {
            Log.d(Constants.PROJECT_NAME, e.toString());
        }
        return null;
    }
}