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/*
* Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.
* According to cos feature, we modify some class，comment, field name, etc.
*/
package com.branch.cos.transfer;
import static com.branch.cos.event.SDKProgressPublisher.publishProgress;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.branch.cos.COS;
import com.branch.cos.COSEncryptionClient;
import com.branch.cos.event.COSProgressPublisher;
import com.branch.cos.event.ProgressEventType;
import com.branch.cos.event.ProgressListenerChain;
import com.branch.cos.internal.UploadPartRequestFactory;
import com.branch.cos.model.AbortMultipartUploadRequest;
import com.branch.cos.model.CompleteMultipartUploadRequest;
import com.branch.cos.model.CompleteMultipartUploadResult;
import com.branch.cos.model.EncryptedInitiateMultipartUploadRequest;
import com.branch.cos.model.EncryptedPutObjectRequest;
import com.branch.cos.model.InitiateMultipartUploadRequest;
import com.branch.cos.model.ListPartsRequest;
import com.branch.cos.model.PartETag;
import com.branch.cos.model.PartListing;
import com.branch.cos.model.PartSummary;
import com.branch.cos.model.PutObjectRequest;
import com.branch.cos.model.PutObjectResult;
import com.branch.cos.model.UploadPartRequest;
import com.branch.cos.model.UploadResult;
import com.branch.cos.transfer.Transfer.TransferState;
public class UploadCallable implements Callable {
private final COS cos;
private final ExecutorService threadPool;
private final PutObjectRequest origReq;
private String multipartUploadId;
private final UploadImpl upload;
private static final Logger log = LoggerFactory.getLogger(UploadCallable.class);
private final TransferManagerConfiguration configuration;
private final List> futures = new ArrayList>();
private final ProgressListenerChain listener;
private final TransferProgress transferProgress;
/**
* ETags retrieved from Qcloud COS for a multi-part upload id. These parts will be skipped while
* resuming a paused upload.
*/
private final List eTagsToSkip = new ArrayList();
private PersistableUpload persistableUpload;
public UploadCallable(TransferManager transferManager, ExecutorService threadPool,
UploadImpl upload, PutObjectRequest origReq,
ProgressListenerChain progressListenerChain, String uploadId,
TransferProgress transferProgress) {
this.cos = transferManager.getCOSClient();
this.configuration = transferManager.getConfiguration();
this.threadPool = threadPool;
this.origReq = origReq;
this.listener = progressListenerChain;
this.upload = upload;
this.multipartUploadId = uploadId;
this.transferProgress = transferProgress;
}
List> getFutures() {
return futures;
}
/**
* Returns the ETags retrieved from Qcloud COS for a multi-part upload id. These parts will be
* skipped while resuming a paused upload.
*/
List getETags() {
return eTagsToSkip;
}
String getMultipartUploadId() {
return multipartUploadId;
}
/**
* Returns true if this UploadCallable is processing a multipart upload.
*
* @return True if this UploadCallable is processing a multipart upload.
*/
public boolean isMultipartUpload() {
return TransferManagerUtils.shouldUseMultipartUpload(origReq, configuration);
}
public UploadResult call() throws Exception {
upload.setState(TransferState.InProgress);
if (isMultipartUpload()) {
publishProgress(listener, ProgressEventType.TRANSFER_STARTED_EVENT);
return uploadInParts();
} else {
return uploadInOneChunk();
}
}
/**
* Uploads the given request in a single chunk and returns the result.
*/
private UploadResult uploadInOneChunk() {
PutObjectResult putObjectResult = cos.putObject(origReq);
UploadResult uploadResult = new UploadResult();
uploadResult.setBucketName(origReq.getBucketName());
uploadResult.setKey(origReq.getKey());
uploadResult.setETag(putObjectResult.getETag());
uploadResult.setVersionId(putObjectResult.getVersionId());
uploadResult.setRequestId(putObjectResult.getRequestId());
uploadResult.setDateStr(putObjectResult.getDateStr());
return uploadResult;
}
/**
* Captures the state of the upload.
*/
private void captureUploadStateIfPossible() {
if (origReq.getSSECustomerKey() == null) {
persistableUpload = new PersistableUpload(origReq.getBucketName(), origReq.getKey(),
origReq.getFile().getAbsolutePath(), multipartUploadId,
configuration.getMinimumUploadPartSize(),
configuration.getMultipartUploadThreshold());
notifyPersistableTransferAvailability();
}
}
public PersistableUpload getPersistableUpload() {
return persistableUpload;
}
/**
* Notifies to the callbacks that state is available
*/
private void notifyPersistableTransferAvailability() {
COSProgressPublisher.publishTransferPersistable(listener, persistableUpload);
}
/**
* Uploads the request in multiple chunks, submitting each upload chunk task to the thread pool
* and recording its corresponding Future object, as well as the multipart upload id.
*/
private UploadResult uploadInParts() throws Exception {
boolean isUsingEncryption = cos instanceof COSEncryptionClient;
long optimalPartSize = getOptimalPartSize(isUsingEncryption);
try {
if (multipartUploadId == null) {
multipartUploadId = initiateMultipartUpload(origReq, isUsingEncryption);
}
UploadPartRequestFactory requestFactory =
new UploadPartRequestFactory(origReq, multipartUploadId, optimalPartSize);
if (TransferManagerUtils.isUploadParallelizable(origReq, isUsingEncryption)) {
captureUploadStateIfPossible();
uploadPartsInParallel(requestFactory, multipartUploadId);
return null;
} else {
return uploadPartsInSeries(requestFactory);
}
} catch (Exception e) {
publishProgress(listener, ProgressEventType.TRANSFER_FAILED_EVENT);
performAbortMultipartUpload();
throw e;
} finally {
if (origReq.getInputStream() != null) {
try {
origReq.getInputStream().close();
} catch (Exception e) {
log.warn("Unable to cleanly close input stream: " + e.getMessage(), e);
}
}
}
}
/**
* Performs an {@link COS#abortMultipartUpload(AbortMultipartUploadRequest)} operation for the
* given multi-part upload.
*/
void performAbortMultipartUpload() {
try {
if (multipartUploadId != null)
cos.abortMultipartUpload(new AbortMultipartUploadRequest(origReq.getBucketName(),
origReq.getKey(), multipartUploadId));
} catch (Exception e2) {
log.info(
"Unable to abort multipart upload, you may need to manually remove uploaded parts: "
+ e2.getMessage(),
e2);
}
}
/**
* Computes and returns the optimal part size for the upload.
*/
private long getOptimalPartSize(boolean isUsingEncryption) {
long optimalPartSize =
TransferManagerUtils.calculateOptimalPartSize(origReq, configuration);
if (isUsingEncryption && optimalPartSize % 32 > 0) {
// When using encryption, parts must line up correctly along cipher block boundaries
optimalPartSize = optimalPartSize - (optimalPartSize % 32) + 32;
}
log.debug("Calculated optimal part size: " + optimalPartSize);
return optimalPartSize;
}
/**
* Uploads all parts in the request in serial in this thread, then completes the upload and
* returns the result.
*/
private UploadResult uploadPartsInSeries(UploadPartRequestFactory requestFactory) {
final List partETags = new ArrayList();
while (requestFactory.hasMoreRequests()) {
if (threadPool.isShutdown())
throw new CancellationException("TransferManager has been shutdown");
UploadPartRequest uploadPartRequest = requestFactory.getNextUploadPartRequest();
// Mark the stream in case we need to reset it
InputStream inputStream = uploadPartRequest.getInputStream();
if (inputStream != null && inputStream.markSupported()) {
if (uploadPartRequest.getPartSize() >= Integer.MAX_VALUE) {
inputStream.mark(Integer.MAX_VALUE);
} else {
inputStream.mark((int) uploadPartRequest.getPartSize());
}
}
partETags.add(cos.uploadPart(uploadPartRequest).getPartETag());
}
CompleteMultipartUploadRequest req =
new CompleteMultipartUploadRequest(origReq.getBucketName(), origReq.getKey(),
multipartUploadId, partETags)
.withGeneralProgressListener(origReq.getGeneralProgressListener());
CompleteMultipartUploadResult res = cos.completeMultipartUpload(req);
UploadResult uploadResult = new UploadResult();
uploadResult.setBucketName(res.getBucketName());
uploadResult.setKey(res.getKey());
uploadResult.setETag(res.getETag());
uploadResult.setVersionId(res.getVersionId());
uploadResult.setRequestId(res.getRequestId());
uploadResult.setDateStr(res.getDateStr());
return uploadResult;
}
/**
* Submits a callable for each part to upload to our thread pool and records its corresponding
* Future.
*/
private void uploadPartsInParallel(UploadPartRequestFactory requestFactory, String uploadId) {
Map partNumbers = identifyExistingPartsForResume(uploadId);
while (requestFactory.hasMoreRequests()) {
if (threadPool.isShutdown())
throw new CancellationException("TransferManager has been shutdown");
UploadPartRequest request = requestFactory.getNextUploadPartRequest();
if (partNumbers.containsKey(request.getPartNumber())) {
PartSummary summary = partNumbers.get(request.getPartNumber());
eTagsToSkip.add(new PartETag(request.getPartNumber(), summary.getETag()));
transferProgress.updateProgress(summary.getSize());
continue;
}
futures.add(threadPool.submit(new UploadPartCallable(cos, request)));
}
}
private Map identifyExistingPartsForResume(String uploadId) {
Map partNumbers = new HashMap();
if (uploadId == null) {
return partNumbers;
}
int partNumber = 0;
while (true) {
PartListing parts = cos.listParts(
new ListPartsRequest(origReq.getBucketName(), origReq.getKey(), uploadId)
.withPartNumberMarker(partNumber));
for (PartSummary partSummary : parts.getParts()) {
partNumbers.put(partSummary.getPartNumber(), partSummary);
}
if (!parts.isTruncated()) {
return partNumbers;
}
partNumber = parts.getNextPartNumberMarker();
}
}
/**
* Initiates a multipart upload and returns the upload id
*
* @param isUsingEncryption
*/
private String initiateMultipartUpload(PutObjectRequest origReq, boolean isUsingEncryption) {
InitiateMultipartUploadRequest req = null;
if (isUsingEncryption && origReq instanceof EncryptedPutObjectRequest) {
req = new EncryptedInitiateMultipartUploadRequest(origReq.getBucketName(),
origReq.getKey()).withCannedACL(origReq.getCannedAcl())
.withObjectMetadata(origReq.getMetadata());
((EncryptedInitiateMultipartUploadRequest) req).setMaterialsDescription(
((EncryptedPutObjectRequest) origReq).getMaterialsDescription());
} else {
req = new InitiateMultipartUploadRequest(origReq.getBucketName(), origReq.getKey())
.withCannedACL(origReq.getCannedAcl())
.withObjectMetadata(origReq.getMetadata());
}
TransferManager.appendMultipartUserAgent(req);
req.withAccessControlList(origReq.getAccessControlList())
.withStorageClass(origReq.getStorageClass())
.withRedirectLocation(origReq.getRedirectLocation())
.withSSECustomerKey(origReq.getSSECustomerKey())
.withSSECOSKeyManagementParams(origReq.getSSECOSKeyManagementParams())
.withGeneralProgressListener(origReq.getGeneralProgressListener());
String uploadId = cos.initiateMultipartUpload(req).getUploadId();
log.debug("Initiated new multipart upload: " + uploadId);
return uploadId;
}
}