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Show progress status when downloading a bootstrap

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This commit is contained in:
CalDescent 2021-10-04 22:38:58 +01:00
parent 289dae0780
commit 65dca36ae1
1 changed files with 43 additions and 5 deletions
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48
src/main/java/org/qortal/repository/Bootstrap.java
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@ -15,8 +15,11 @@ import org.qortal.settings.Settings;
import org.qortal.utils.NTP;
import org.qortal.utils.SevenZ;
import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.file.*;
import java.security.SecureRandom;
@ -370,12 +373,47 @@ public class Bootstrap {
int index = new SecureRandom().nextInt(hosts.length);
String bootstrapHost = hosts[index];
String bootstrapFilename = this.getFilename();
String bootstrapUrl = String.format("%s/%s", bootstrapHost, bootstrapFilename);
// Delete an existing file if it exists
try {
this.updateStatus("Downloading bootstrap...");
String bootstrapUrl = String.format("%s/%s", bootstrapHost, bootstrapFilename);
InputStream in = new URL(bootstrapUrl).openStream();
Files.copy(in, path, REPLACE_EXISTING);
Files.delete(path);
} catch (IOException e) {
// No need to do anything
}
// Get the total file size
URL url;
long fileSize;
try {
url = new URL(bootstrapUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("HEAD");
connection.connect();
fileSize = connection.getContentLengthLong();
connection.disconnect();
} catch (MalformedURLException e) {
throw new DataException(String.format("Malformed URL when downloading bootstrap: %s", e.getMessage()));
} catch (IOException e) {
throw new DataException(String.format("Unable to download bootstrap: %s", e.getMessage()));
}
// Download the file and update the status with progress
try (BufferedInputStream in = new BufferedInputStream(url.openStream());
FileOutputStream fileOutputStream = new FileOutputStream(path.toFile())) {
byte[] buffer = new byte[1024 * 1024];
long downloaded = 0;
int bytesRead;
while ((bytesRead = in.read(buffer, 0, 1024)) != -1) {
fileOutputStream.write(buffer, 0, bytesRead);
downloaded += bytesRead;
if (fileSize > 0) {
int progress = (int)((double)downloaded / (double)fileSize * 100);
SplashFrame.getInstance().updateStatus(String.format("Downloading bootstrap... (%d%%)", progress));
}
}
} catch (IOException e) {
throw new DataException(String.format("Unable to download bootstrap: %s", e.getMessage()));