storagehub/src/main/java/org/gcube/data/access/storagehub/SingleFileStreamingOutput.java

46 lines
1.2 KiB
Java

package org.gcube.data.access.storagehub;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.StreamingOutput;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SingleFileStreamingOutput implements StreamingOutput {
private static final Logger log = LoggerFactory.getLogger(SingleFileStreamingOutput.class);
InputStream streamToWrite;
public SingleFileStreamingOutput(InputStream streamToWrite) {
super();
this.streamToWrite = streamToWrite;
}
/**
* Overriding the write method to write request data directly to Jersey outputStream .
* @param outputStream
* @throws IOException
* @throws WebApplicationException
*/
@Override
public void write(OutputStream outputStream) throws IOException, WebApplicationException {
log.debug("writing StreamOutput");
copy(streamToWrite, outputStream);
log.debug("StreamOutput written");
}
private void copy(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[2048];
int readcount = 0;
while ((readcount=in.read(buffer))!=-1) {
out.write(buffer, 0, readcount);
}
}
}