package de.jeha.s3pt.tools;

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.ObjectListing;
import de.jeha.s3pt.Constants;
import de.jeha.s3pt.utils.UserProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.Locale;
import java.util.Properties;

/**
 * @author jenshadlich@googlemail.com
 */
public class CountObjects {

    private static final Logger LOG = LoggerFactory.getLogger(CountObjects.class);

    public static void main(String... args) throws IOException {
        Locale.setDefault(Locale.ENGLISH);

        final Properties userProperties = UserProperties.fromHome().load("s3pt");
        final String accessKey = userProperties.getProperty("accessKey");
        final String secretKey = userProperties.getProperty("secretKey");
        final String endpoint = userProperties.getProperty("endpoint");
        final String bucket = "my-bucket";

        AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);

        ClientConfiguration clientConfig = new ClientConfiguration()
                .withProtocol(Protocol.HTTP)
                .withUserAgent("CountObjects")
                .withSignerOverride(Constants.S3_SIGNER_TYPE);

        AmazonS3 s3Client = new AmazonS3Client(credentials, clientConfig);
        s3Client.setEndpoint(endpoint);

        int objectCount = 0;
        int chunks = 0;

        LOG.info("Start: bucket '{}'", bucket);

        boolean hasMoreResults;
        ObjectListing previousObjectListing = null;
        do {
            printProgress(++chunks);

            ObjectListing objectListing = (previousObjectListing != null)
                    ? s3Client.listNextBatchOfObjects(previousObjectListing)
                    : s3Client.listObjects(bucket);
            previousObjectListing = objectListing;
            hasMoreResults = objectListing.isTruncated();

            objectCount += objectListing.getObjectSummaries().size();
        } while (hasMoreResults);

        System.out.println();
        LOG.info("#objects: {}", objectCount);
    }

    private static void printProgress(int i) {
        System.out.print(".");
        System.out.flush();
        if (i % 100 == 0) {
            System.out.println();
        }
    }

}

package de.jeha.s3pt.tools;

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.ObjectListing;
import de.jeha.s3pt.Constants;
import de.jeha.s3pt.utils.UserProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.Locale;
import java.util.Properties;

/**
 * @author jenshadlich@googlemail.com
 */
public class CountObjects {

    private static final Logger LOG = LoggerFactory.getLogger(CountObjects.class);

    public static void main(String... args) throws IOException {
        Locale.setDefault(Locale.ENGLISH);

        final Properties userProperties = UserProperties.fromHome().load("s3pt");
        final String accessKey = userProperties.getProperty("accessKey");
        final String secretKey = userProperties.getProperty("secretKey");
        final String endpoint = userProperties.getProperty("endpoint");
        final String bucket = "my-bucket";

        AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);

        ClientConfiguration clientConfiguration = new ClientConfiguration()
                .withProtocol(Protocol.HTTP)
                .withUserAgent("CountObjects")
                .withSignerOverride(Constants.S3_SIGNER_TYPE);

        AmazonS3 s3Client = new AmazonS3Client(credentials, clientConfiguration);
        s3Client.setEndpoint(endpoint);

        int objectCount = 0;
        int chunks = 0;

        LOG.info("Start: bucket '{}'", bucket);

        boolean hasMoreResults;
        ObjectListing previousObjectListing = null;
        do {
            printProgress(++chunks);

            ObjectListing objectListing = (previousObjectListing != null)
                    ? s3Client.listNextBatchOfObjects(previousObjectListing)
                    : s3Client.listObjects(bucket);
            previousObjectListing = objectListing;
            hasMoreResults = objectListing.isTruncated();

            objectCount += objectListing.getObjectSummaries().size();
        } while (hasMoreResults);

        System.out.println();
        LOG.info("#objects: {}", objectCount);
    }

    private static void printProgress(int i) {
        System.out.print(".");
        System.out.flush();
        if (i % 100 == 0) {
            System.out.println();
        }
    }

}

rename variable