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package com.lc8n.util;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;
public class ProgressMultipartEntity extends MultipartEntity
{
private final ProgressListener listener;
public ProgressMultipartEntity(final ProgressListener listener)
{
super();
this.listener = listener;
}
public ProgressMultipartEntity(final HttpMultipartMode mode, final ProgressListener listener)
{
super(mode);
this.listener = listener;
}
public ProgressMultipartEntity(HttpMultipartMode mode, final String boundary, final Charset charset, final ProgressListener listener)
{
super(mode, boundary, charset);
this.listener = listener;
}
@Override
public void writeTo(final OutputStream outstream) throws IOException
{
super.writeTo(new CountingOutputStream(outstream, this.listener));
}
public static interface ProgressListener
{
void transferred(long num);
}
public static class CountingOutputStream extends FilterOutputStream
{
private final ProgressListener listener;
private long transferred;
public CountingOutputStream(final OutputStream out, final ProgressListener listener)
{
super(out);
this.listener = listener;
this.transferred = 0;
}
public void write(byte[] b, int off, int len) throws IOException
{
out.write(b, off, len);
this.transferred += len;
this.listener.transferred(this.transferred);
}
public void write(int b) throws IOException
{
out.write(b);
this.transferred++;
this.listener.transferred(this.transferred);
}
}
}
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