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package mobvista.dmp.util;
import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.event.ProgressEvent;
import com.amazonaws.event.ProgressListener;
import com.amazonaws.services.s3.transfer.*;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
/**
* @package: mobvista.dmp.util
* @author: wangjf
* @date: 2021/8/3
* @time: 11:26 上午
* @email: jinfeng.wang@mobvista.com
*/
public class XferMgrProgress {
// waits for the transfer to complete, catching any exceptions that occur.
public static void waitForCompletion(Transfer xfer) {
// snippet-start:[s3.java1.s3_xfer_mgr_progress.wait_for_transfer]
try {
xfer.waitForCompletion();
} catch (AmazonServiceException e) {
System.err.println("Amazon service error: " + e.getMessage());
System.exit(1);
} catch (AmazonClientException e) {
System.err.println("Amazon client error: " + e.getMessage());
System.exit(1);
} catch (InterruptedException e) {
System.err.println("Transfer interrupted: " + e.getMessage());
System.exit(1);
}
// snippet-end:[s3.java1.s3_xfer_mgr_progress.wait_for_transfer]
}
// Prints progress while waiting for the transfer to finish.
public static void showTransferProgress(Transfer xfer) {
// snippet-start:[s3.java1.s3_xfer_mgr_progress.poll]
// print the transfer's human-readable description
System.out.println(xfer.getDescription());
// print an empty progress bar...
printProgressBar(0.0);
// update the progress bar while the xfer is ongoing.
do {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
return;
}
// Note: so_far and total aren't used, they're just for
// documentation purposes.
TransferProgress progress = xfer.getProgress();
long so_far = progress.getBytesTransferred();
long total = progress.getTotalBytesToTransfer();
double pct = progress.getPercentTransferred();
eraseProgressBar();
printProgressBar(pct);
} while (xfer.isDone() == false);
// print the final state of the transfer.
Transfer.TransferState xfer_state = xfer.getState();
System.out.println(": " + xfer_state);
// snippet-end:[s3.java1.s3_xfer_mgr_progress.poll]
}
// Prints progress of a multiple file upload while waiting for it to finish.
public static void showMultiUploadProgress(MultipleFileUpload multi_upload) {
// print the upload's human-readable description
System.out.println(multi_upload.getDescription());
// snippet-start:[s3.java1.s3_xfer_mgr_progress.substranferes]
Collection<? extends Upload> sub_xfers = new ArrayList<Upload>();
sub_xfers = multi_upload.getSubTransfers();
do {
System.out.println("\nSubtransfer progress:\n");
for (Upload u : sub_xfers) {
System.out.println(" " + u.getDescription());
if (u.isDone()) {
Transfer.TransferState xfer_state = u.getState();
System.out.println(" " + xfer_state);
} else {
TransferProgress progress = u.getProgress();
double pct = progress.getPercentTransferred();
printProgressBar(pct);
System.out.println();
}
}
// wait a bit before the next update.
try {
Thread.sleep(200);
} catch (InterruptedException e) {
return;
}
} while (multi_upload.isDone() == false);
// print the final state of the transfer.
Transfer.TransferState xfer_state = multi_upload.getState();
System.out.println("\nMultipleFileUpload " + xfer_state);
// snippet-end:[s3.java1.s3_xfer_mgr_progress.substranferes]
}
// prints a simple text progressbar: [##### ]
public static void printProgressBar(double pct) {
// if bar_size changes, then change erase_bar (in eraseProgressBar) to
// match.
final int bar_size = 40;
final String empty_bar = " ";
final String filled_bar = "########################################";
int amt_full = (int) (bar_size * (pct / 100.0));
System.out.format(" [%s%s]", filled_bar.substring(0, amt_full),
empty_bar.substring(0, bar_size - amt_full));
}
// erases the progress bar.
public static void eraseProgressBar() {
// erase_bar is bar_size (from printProgressBar) + 4 chars.
final String erase_bar = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b";
System.out.format(erase_bar);
}
public static void uploadFileWithListener(String file_path,
String bucket_name, String key_prefix, boolean pause) {
System.out.println("file: " + file_path +
(pause ? " (pause)" : ""));
String key_name = null;
if (key_prefix != null) {
key_name = key_prefix + '/' + file_path;
} else {
key_name = file_path;
}
// snippet-start:[s3.java1.s3_xfer_mgr_progress.progress_listener]
File f = new File(file_path);
TransferManager xfer_mgr = TransferManagerBuilder.standard().build();
try {
Upload u = xfer_mgr.upload(bucket_name, key_name, f);
// print an empty progress bar...
printProgressBar(0.0);
u.addProgressListener(new ProgressListener() {
public void progressChanged(ProgressEvent e) {
double pct = e.getBytesTransferred() * 100.0 / e.getBytes();
eraseProgressBar();
printProgressBar(pct);
}
});
// block with Transfer.waitForCompletion()
XferMgrProgress.waitForCompletion(u);
// print the final state of the transfer.
Transfer.TransferState xfer_state = u.getState();
System.out.println(": " + xfer_state);
} catch (AmazonServiceException e) {
System.err.println(e.getErrorMessage());
System.exit(1);
}
xfer_mgr.shutdownNow();
// snippet-end:[s3.java1.s3_xfer_mgr_progress.progress_listener]
}
public static void uploadDirWithSubprogress(String dir_path,
String bucket_name, String key_prefix, boolean recursive,
boolean pause) {
System.out.println("directory: " + dir_path + (recursive ?
" (recursive)" : "") + (pause ? " (pause)" : ""));
TransferManager xfer_mgr = new TransferManager();
try {
MultipleFileUpload multi_upload = xfer_mgr.uploadDirectory(
bucket_name, key_prefix, new File(dir_path), recursive);
// loop with Transfer.isDone()
XferMgrProgress.showMultiUploadProgress(multi_upload);
// or block with Transfer.waitForCompletion()
XferMgrProgress.waitForCompletion(multi_upload);
} catch (AmazonServiceException e) {
System.err.println(e.getErrorMessage());
System.exit(1);
}
xfer_mgr.shutdownNow();
}
public static void main(String[] args) {
final String USAGE = "\n" +
"Usage:\n" +
" XferMgrProgress [--recursive] [--pause] <s3_path> <local_path>\n\n" +
"Where:\n" +
" --recursive - Only applied if local_path is a directory.\n" +
" Copies the contents of the directory recursively.\n\n" +
" --pause - Attempt to pause+resume the upload. This may not work for\n" +
" small files.\n\n" +
" s3_path - The S3 destination (bucket/path) to upload the file(s) to.\n\n" +
" local_path - The path to a local file or directory path to upload to S3.\n\n" +
"Examples:\n" +
" XferMgrProgress public_photos/cat_happy.png my_photos/funny_cat.png\n" +
" XferMgrProgress public_photos my_photos/cat_sad.png\n" +
" XferMgrProgress public_photos my_photos\n\n";
if (args.length < 2) {
System.out.println(USAGE);
System.exit(1);
}
int cur_arg = 0;
boolean recursive = false;
boolean pause = false;
// first, parse any switches
while (args[cur_arg].startsWith("--")) {
if (args[cur_arg].equals("--recursive")) {
recursive = true;
} else if (args[cur_arg].equals("--pause")) {
pause = true;
} else {
System.out.println("Unknown argument: " + args[cur_arg]);
System.out.println(USAGE);
System.exit(1);
}
cur_arg += 1;
}
// only the first '/' character is of interest to get the bucket name.
// Subsequent ones are part of the key name.
String[] s3_path = args[cur_arg].split("/", 2);
cur_arg += 1;
String bucket_name = s3_path[0];
String key_prefix = null;
if (s3_path.length > 1) {
key_prefix = s3_path[1];
}
String local_path = args[cur_arg];
// check to see if local path is a directory or file...
File f = new File(args[cur_arg]);
if (f.exists() == false) {
System.out.println("Input path doesn't exist: " + args[cur_arg]);
System.exit(1);
} else if (f.isDirectory()) {
uploadDirWithSubprogress(local_path, bucket_name, key_prefix,
recursive, pause);
} else {
uploadFileWithListener(local_path, bucket_name, key_prefix, pause);
}
}
}