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Java program upload file to Azure Blob Storage with progress indicator
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package com.cloudriches.sample; | |
import com.microsoft.azure.storage.CloudStorageAccount; | |
import com.microsoft.azure.storage.blob.CloudBlobClient; | |
import com.microsoft.azure.storage.blob.CloudBlobContainer; | |
import com.microsoft.azure.storage.blob.CloudBlockBlob; | |
import java.io.File; | |
import java.io.FileInputStream; | |
public class Main implements WatchingInputStream.ProgressListener { | |
public static void main(String[] args) throws Exception { | |
Main main = new Main(); | |
main.upload(); | |
} | |
public void upload() throws Exception | |
{ | |
CloudStorageAccount account = CloudStorageAccount.parse("DefaultEndpointsProtocol=https;AccountName= ...."); | |
CloudBlobClient client = account.createCloudBlobClient(); | |
CloudBlobContainer container = client.getContainerReference("files"); | |
CloudBlockBlob blob = container.getBlockBlobReference("template_62269_xQ0qqGGG71BB3y99n11x.zip"); | |
File sourceFile = new File("/Users/dino/Downloads/template_62269_xQ0qqGGG71BB3y99n11x.zip"); | |
FileInputStream inputStream = new FileInputStream(sourceFile); | |
WatchingInputStream watchingInputStream = new WatchingInputStream(inputStream, this); | |
blob.upload(watchingInputStream, sourceFile.length()); | |
} | |
@Override | |
public void onAdvance(long at, long length) { | |
double percentage = (double)at / (double)length; | |
System.out.println(percentage); | |
} | |
} |
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package com.cloudriches.sample; | |
import java.io.FilterInputStream; | |
import java.io.IOException; | |
import java.io.InputStream; | |
// from https://gist.github.com/alterakey/1454764 | |
public class WatchingInputStream extends FilterInputStream { | |
public interface ProgressListener { | |
void onAdvance(long at, long length); | |
} | |
private int marked = 0; | |
private long position = 0; | |
private ProgressListener listener; | |
public WatchingInputStream(InputStream in, ProgressListener listener) { | |
super(in); | |
this.listener = listener; | |
} | |
@Override | |
public int read(byte[] buffer, int offset, int count) throws IOException { | |
int advanced = super.read(buffer, offset, count); | |
this.position += advanced; | |
this.report(); | |
return advanced; | |
} | |
@Override | |
public synchronized void reset() throws IOException { | |
super.reset(); | |
this.position = this.marked; | |
} | |
@Override | |
public synchronized void mark(int readlimit) { | |
super.mark(readlimit); | |
this.marked = readlimit; | |
} | |
@Override | |
public long skip(long byteCount) throws IOException { | |
long advanced = super.skip(byteCount); | |
this.position += advanced; | |
this.report(); | |
return advanced; | |
} | |
private void report() { | |
if (this.listener == null) | |
return; | |
try { | |
this.listener.onAdvance(this.position, this.position + this.in.available()); | |
} | |
catch (IOException e) { | |
this.listener.onAdvance(this.position, 0); | |
} | |
} | |
} |
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