GetObjectProgressBar.java Source code

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Here is the source code for GetObjectProgressBar.java

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/*
 * Minio Java SDK for Amazon S3 Compatible Cloud Storage, (C) 2017 Minio, Inc.
 *
 * 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
 *
 *     https://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.
 */

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

import org.xmlpull.v1.XmlPullParserException;

import com.google.common.io.ByteStreams;

import io.minio.MinioClient;
import io.minio.ObjectStat;
import io.minio.errors.MinioException;
import me.tongfei.progressbar.ProgressBarStyle;

public class GetObjectProgressBar {
    /**
     * MinioClient.getObjectProgressBar() example.
     */
    public static void main(String[] args)
            throws IOException, NoSuchAlgorithmException, InvalidKeyException, XmlPullParserException {
        try {
            /* play.minio.io for test and development. */
            MinioClient minioClient = new MinioClient("https://play.minio.io:9000", "Q3AM3UQ867SPQQA43P2F",
                    "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG");

            /* Amazon S3: */
            // MinioClient minioClient = new MinioClient("https://s3.amazonaws.com", "YOUR-ACCESSKEYID",
            // "YOUR-SECRETACCESSKEY");

            // Check whether the object exists using statObject(). If the object is not found,
            // statObject() throws an exception. It means that the object exists when statObject()
            // execution is successful.

            // Get object stat information.
            ObjectStat objectStat = minioClient.statObject("testbucket", "resumes/4.original.pdf");

            // Get input stream to have content of 'my-objectname' from 'my-bucketname'
            InputStream is = new ProgressStream("Downloading .. ", ProgressBarStyle.ASCII, objectStat.length(),
                    minioClient.getObject("my-bucketname", "my-objectname"));

            Path path = Paths.get("my-filename");
            OutputStream os = Files.newOutputStream(path, StandardOpenOption.CREATE);

            long bytesWritten = ByteStreams.copy(is, os);
            is.close();
            os.close();

            if (bytesWritten != objectStat.length()) {
                throw new IOException(path + ": unexpected data written.  expected = " + objectStat.length()
                        + ", written = " + bytesWritten);
            }

        } catch (MinioException e) {
            System.out.println("Error occurred: " + e);
        }
    }
}