package com.bazaarvoice.maven.plugin.s3repo.util;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.model.ListObjectsRequest;
import com.amazonaws.services.s3.model.ObjectListing;
import com.amazonaws.services.s3.model.S3ObjectSummary;
import com.bazaarvoice.maven.plugin.s3repo.S3RepositoryPath;
import java.util.ArrayList;
import java.util.List;
public final class S3Utils {
private S3Utils() {}
public static String toRepoRelativePath(S3ObjectSummary summary, S3RepositoryPath s3RepositoryPath) {
return bucketKeyToRepoRelativePath(s3RepositoryPath, summary.getKey());
}
public static String toRepoRelativePath(String bucketKey, S3RepositoryPath s3RepositoryPath) {
return bucketKeyToRepoRelativePath(s3RepositoryPath, bucketKey);
}
private static String bucketKeyToRepoRelativePath(S3RepositoryPath s3RepositoryPath, String bucketKey) {
return s3RepositoryPath.hasBucketRelativeFolder()
? bucketKey.replaceFirst("^\\Q" + s3RepositoryPath.getBucketRelativeFolder() + "/\\E", "")
: bucketKey;
}
/** S3 may paginate object lists; this will walk through all pages and produce full result list. */
public static List<S3ObjectSummary> listAllObjects(AmazonS3 s3Session, ListObjectsRequest request) {
List<S3ObjectSummary> allResults = new ArrayList<S3ObjectSummary>();
ObjectListing result = s3Session.listObjects(request);
allResults.addAll(result.getObjectSummaries());
while (result.isTruncated()) {
result = s3Session.listNextBatchOfObjects(result);
allResults.addAll(result.getObjectSummaries());
}
return allResults;
}
}