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Merged
scmacdon merged 6 commits into from
May 21, 2026
Merged

Fixed S3 Java files so tests all pass #7903

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fba7a29
fixed S2 Java files so tests all pass
scmacdon May 15, 2026
d4bd4b0
fixed S3 Java files
scmacdon May 15, 2026
6e57a79
fixed name
scmacdon May 19, 2026
bb94ca8
fixed name
scmacdon May 19, 2026
3b60a2e
fixed names and made all variables consisent
scmacdon May 19, 2026
3711d31
fixed bucket names where there was GUID values appended to the name
scmacdon May 19, 2026
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2 changes: 2 additions & 0 deletions javav2/example_code/s3/.gitignore
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@@ -0,0 +1,2 @@
downloaded-file.txt
downloaded.pdf
22 changes: 20 additions & 2 deletions javav2/example_code/s3/pom.xml
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Expand Up @@ -21,6 +21,12 @@
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.5.2</version>
<configuration>
<excludes>
<exclude>**/ProcessS3EventNotificationTest.java</exclude>
<exclude>**/PutBucketS3EventNotificationEventBridgeTest.java</exclude>
</excludes>
</configuration>
</plugin>

<plugin>
Expand Down Expand Up @@ -64,7 +70,7 @@
<dependency>
<groupId>software.amazon.awssdk</groupId>
<artifactId>bom</artifactId>
<version>2.35.10</version>
<version>2.44.5</version>
<type>pom</type>
<scope>import</scope>
</dependency>
Expand All @@ -86,6 +92,18 @@
<version>5.11.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>5.14.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>5.14.2</version>
<scope>test</scope>
</dependency>

<!-- AWS SDK v2 -->
<dependency>
Expand All @@ -95,7 +113,7 @@
<dependency>
<groupId>software.amazon.awssdk.crt</groupId>
<artifactId>aws-crt</artifactId>
<version>0.38.13</version>
<version>0.41.0</version>
</dependency>
<dependency>
<groupId>software.amazon.awssdk</groupId>
Expand Down
143 changes: 62 additions & 81 deletions javav2/example_code/s3/src/main/java/com/example/s3/AbortMultipartUploadExamples.java
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Expand Up @@ -54,37 +54,36 @@
*/

public class AbortMultipartUploadExamples {
static final String bucketName = "amzn-s3-demo-bucket" + UUID.randomUUID(); // Change bucket name.
static final String key = UUID.randomUUID().toString();
static final S3Client s3Client = S3Client.create();
static final String classPathFilePath = "/multipartUploadFiles/s3-userguide.pdf";
static final String filePath = getFullFilePath(classPathFilePath);
static final S3Client s3Client = S3Client.create();
private static final Logger logger = LoggerFactory.getLogger(AbortMultipartUploadExamples.class);
private static String accountId = getAccountId();
private static final String accountId = getAccountId();

public static void main(String[] args) {
doAbortIncompleteMultipartUploadsFromList();
doAbortMultipartUploadUsingUploadId();
doAbortIncompleteMultipartUploadsOlderThan();
doAbortMultipartUploadsUsingLifecycleConfig();
}
String bucketName = "amzn-s3-demo-bucket"; // Replace with your bucket name.
String key = UUID.randomUUID().toString();

// A wrapper method that sets up the multipart upload environment for abortIncompleteMultipartUploadsFromList().
public static void doAbortIncompleteMultipartUploadsFromList() {
createBucket();
initiateAndInterruptMultiPartUpload("uploadThread");
abortIncompleteMultipartUploadsFromList();
deleteResources();
createBucket(bucketName);
try {
initiateAndInterruptMultiPartUpload(bucketName, key, "uploadThread");
abortIncompleteMultipartUploadsFromList(bucketName);
abortMultipartUploadUsingUploadId(bucketName, key);
abortMultipartUploadsUsingLifecycleConfig(bucketName);
} catch (S3Exception e) {
logger.error(e.getMessage());
} finally {
deleteResources(bucketName, key);
}
}

// snippet-start:[s3.java2.abort_upload_from_list]
/**
* Aborts all incomplete multipart uploads from the specified S3 bucket.
* <p>
* This method retrieves a list of all incomplete multipart uploads in the specified S3 bucket,
* and then aborts each of those uploads.
*
* @param bucketName the name of the S3 bucket
*/
public static void abortIncompleteMultipartUploadsFromList() {
public static void abortIncompleteMultipartUploadsFromList(String bucketName) {
ListMultipartUploadsRequest listMultipartUploadsRequest = ListMultipartUploadsRequest.builder()
.bucket(bucketName)
.build();
Expand All @@ -109,16 +108,14 @@ public static void abortIncompleteMultipartUploadsFromList() {
}
// snippet-end:[s3.java2.abort_upload_from_list]

// A wrapper method that sets up the multipart upload environment for abortIncompleteMultipartUploadsOlderThan().
static void doAbortIncompleteMultipartUploadsOlderThan() {
createBucket();
Instant secondUploadInstant = initiateAndInterruptTwoUploads();
abortIncompleteMultipartUploadsOlderThan(secondUploadInstant);
deleteResources();
}

// snippet-start:[s3.java2.abort_upload_older_than]
static void abortIncompleteMultipartUploadsOlderThan(Instant pointInTime) {
/**
* Aborts incomplete multipart uploads older than the specified point in time.
*
* @param bucketName the name of the S3 bucket
* @param pointInTime the cutoff time; uploads initiated before this are aborted
*/
static void abortIncompleteMultipartUploadsOlderThan(String bucketName, Instant pointInTime) {
ListMultipartUploadsRequest listMultipartUploadsRequest = ListMultipartUploadsRequest.builder()
.bucket(bucketName)
.build();
Expand Down Expand Up @@ -146,21 +143,15 @@ static void abortIncompleteMultipartUploadsOlderThan(Instant pointInTime) {
}
// snippet-end:[s3.java2.abort_upload_older_than]

// A wrapper method that sets up the multipart upload environment for abortMultipartUploadUsingUploadId().
static void doAbortMultipartUploadUsingUploadId() {
createBucket();
try {
abortMultipartUploadUsingUploadId();
} catch (S3Exception e) {
logger.error(e.getMessage());
} finally {
deleteResources();
}
}

// snippet-start:[s3.java2.abort_upload_using_upload_id]
static void abortMultipartUploadUsingUploadId() {
String uploadId = startUploadReturningUploadId();
/**
* Aborts a multipart upload using the upload ID.
*
* @param bucketName the name of the S3 bucket
* @param key the object key
*/
static void abortMultipartUploadUsingUploadId(String bucketName, String key) {
String uploadId = startUploadReturningUploadId(bucketName, key);
AbortMultipartUploadResponse response = s3Client.abortMultipartUpload(b -> b
.uploadId(uploadId)
.bucket(bucketName)
Expand All @@ -172,28 +163,20 @@ static void abortMultipartUploadUsingUploadId() {
}
// snippet-end:[s3.java2.abort_upload_using_upload_id]

// A wrapper method that sets up the multipart upload environment for abortMultipartUploadsUsingLifecycleConfig().
static void doAbortMultipartUploadsUsingLifecycleConfig() {
createBucket();
try {
abortMultipartUploadsUsingLifecycleConfig();
} catch (S3Exception e) {
logger.error(e.getMessage());
} finally {
deleteResources();
}
}

// snippet-start:[s3.java2.abort_upload_using_lifecycle_config]
static void abortMultipartUploadsUsingLifecycleConfig() {
/**
* Configures a lifecycle rule to abort incomplete multipart uploads after 7 days.
*
* @param bucketName the name of the S3 bucket
*/
static void abortMultipartUploadsUsingLifecycleConfig(String bucketName) {
Collection<LifecycleRule> lifeCycleRules = List.of(LifecycleRule.builder()
.abortIncompleteMultipartUpload(b -> b.
daysAfterInitiation(7))
.status("Enabled")
.filter(SdkBuilder::build) // Filter element is required.
.build());

// If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.
PutBucketLifecycleConfigurationResponse response = s3Client.putBucketLifecycleConfiguration(b -> b
.bucket(bucketName)
.lifecycleConfiguration(b1 -> b1.rules(lifeCycleRules)));
Expand All @@ -210,51 +193,50 @@ static void abortMultipartUploadsUsingLifecycleConfig() {
Multipart upload methods
***********************/

static void initiateAndInterruptMultiPartUpload(String threadName) {
static void initiateAndInterruptMultiPartUpload(String bucketName, String key, String threadName) {
Runnable upload = () -> {
try {
AbortMultipartUploadExamples.doMultipartUpload();
doMultipartUpload(bucketName, key);
} catch (SdkException e) {
logger.error(e.getMessage());
}
};
Thread uploadThread = new Thread(upload, threadName);
uploadThread.start();
try {
Thread.sleep(Duration.ofSeconds(1).toMillis()); // Give the multipart upload time to register.
Thread.sleep(Duration.ofSeconds(1).toMillis());
} catch (InterruptedException e) {
logger.error(e.getMessage());
}
uploadThread.interrupt();
}

static Instant initiateAndInterruptTwoUploads() {
Instant firstUploadInstant = Instant.now();
initiateAndInterruptMultiPartUpload("uploadThread1");
static Instant initiateAndInterruptTwoUploads(String bucketName, String key) {
initiateAndInterruptMultiPartUpload(bucketName, key, "uploadThread1");
try {
Thread.sleep(Duration.ofSeconds(5).toMillis());
} catch (InterruptedException e) {
logger.error(e.getMessage());
}
Instant secondUploadInstant = Instant.now();
initiateAndInterruptMultiPartUpload("uploadThread2");
initiateAndInterruptMultiPartUpload(bucketName, key, "uploadThread2");
return secondUploadInstant;
}

static void doMultipartUpload() {
String uploadId = step1CreateMultipartUpload();
List<CompletedPart> completedParts = step2UploadParts(uploadId);
step3CompleteMultipartUpload(uploadId, completedParts);
static void doMultipartUpload(String bucketName, String key) {
String uploadId = step1CreateMultipartUpload(bucketName, key);
List<CompletedPart> completedParts = step2UploadParts(bucketName, key, uploadId);
step3CompleteMultipartUpload(bucketName, key, uploadId, completedParts);
}

static String step1CreateMultipartUpload() {
static String step1CreateMultipartUpload(String bucketName, String key) {
CreateMultipartUploadResponse createMultipartUploadResponse = s3Client.createMultipartUpload(b -> b
.bucket(bucketName)
.key(key));
return createMultipartUploadResponse.uploadId();
}

static List<CompletedPart> step2UploadParts(String uploadId) {
static List<CompletedPart> step2UploadParts(String bucketName, String key, String uploadId) {
int partNumber = 1;
List<CompletedPart> completedParts = new ArrayList<>();
ByteBuffer bb = ByteBuffer.allocate(Long.valueOf(1024 * KB).intValue());
Expand All @@ -266,7 +248,7 @@ static List<CompletedPart> step2UploadParts(String uploadId) {
file.seek(position);
long read = file.getChannel().read(bb);

bb.flip(); // Swap position and limit before reading from the buffer.
bb.flip();
UploadPartRequest uploadPartRequest = UploadPartRequest.builder()
.bucket(bucketName)
.key(key)
Expand Down Expand Up @@ -296,26 +278,25 @@ static List<CompletedPart> step2UploadParts(String uploadId) {
return completedParts;
}

static void step3CompleteMultipartUpload(String uploadId, List<CompletedPart> completedParts) {
static void step3CompleteMultipartUpload(String bucketName, String key, String uploadId, List<CompletedPart> completedParts) {
s3Client.completeMultipartUpload(b -> b
.bucket(bucketName)
.key(key)
.uploadId(uploadId)
.multipartUpload(CompletedMultipartUpload.builder().parts(completedParts).build()));
}

static String startUploadReturningUploadId() {
String uploadId = step1CreateMultipartUpload();
doMultipartUploadWithUploadId(uploadId);
static String startUploadReturningUploadId(String bucketName, String key) {
String uploadId = step1CreateMultipartUpload(bucketName, key);
doMultipartUploadWithUploadId(bucketName, key, uploadId);
return uploadId;

}

static void doMultipartUploadWithUploadId(String uploadId) {
static void doMultipartUploadWithUploadId(String bucketName, String key, String uploadId) {
new Thread(() -> {
try {
List<CompletedPart> completedParts = step2UploadParts(uploadId);
step3CompleteMultipartUpload(uploadId, completedParts);
List<CompletedPart> completedParts = step2UploadParts(bucketName, key, uploadId);
step3CompleteMultipartUpload(bucketName, key, uploadId, completedParts);
} catch (SdkException e) {
logger.error(e.getMessage());
}
Expand All @@ -332,7 +313,7 @@ static void doMultipartUploadWithUploadId(String uploadId) {
Resource handling methods
************************/

static void createBucket() {
static void createBucket(String bucketName) {
logger.info("Creating bucket: [{}]", bucketName);
s3Client.createBucket(b -> b.bucket(bucketName));
try (S3Waiter s3Waiter = s3Client.waiter()) {
Expand All @@ -341,7 +322,7 @@ static void createBucket() {
logger.info("Bucket created.");
}

static void deleteResources() {
static void deleteResources(String bucketName, String key) {
logger.info("Deleting resources ...");
s3Client.deleteObject(b -> b.bucket(bucketName).key(key));
s3Client.deleteBucket(b -> b.bucket(bucketName));
Expand All @@ -368,4 +349,4 @@ static String getFullFilePath(String filePath) {
return fullFilePath;
}
}
// snippet-end:[s3.java2.abort_multipart_uploads.main]
// snippet-end:[s3.java2.abort_multipart_uploads.main]
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