ConsoleTransferListener.java

//package de.twenty11.skysail.server.ext.maven;
//
//import java.io.PrintStream;
//import java.text.DecimalFormat;
//import java.text.DecimalFormatSymbols;
//import java.util.Locale;
//import java.util.Map;
//import java.util.concurrent.ConcurrentHashMap;
//
//import org.eclipse.aether.transfer.AbstractTransferListener;
//import org.eclipse.aether.transfer.TransferEvent;
//import org.eclipse.aether.transfer.TransferResource;
//
//public class ConsoleTransferListener extends AbstractTransferListener {
//
//	private PrintStream out;
//
//	private Map<TransferResource, Long> downloads = new ConcurrentHashMap<TransferResource, Long>();
//
//	private int lastLength;
//
//	public ConsoleTransferListener() {
//		this(null);
//	}
//
//	public ConsoleTransferListener(PrintStream out) {
//		this.out = (out != null) ? out : System.out;
//	}
//
//	@Override
//	public void transferInitiated(TransferEvent event) {
//		String message = event.getRequestType() == TransferEvent.RequestType.PUT ? "Uploading"
//				: "Downloading";
//
//		out.println(message + ": " + event.getResource().getRepositoryUrl()
//				+ event.getResource().getResourceName());
//	}
//
//	@Override
//	public void transferProgressed(TransferEvent event) {
//		TransferResource resource = event.getResource();
//		downloads.put(resource, Long.valueOf(event.getTransferredBytes()));
//
//		StringBuilder buffer = new StringBuilder(64);
//
//		for (Map.Entry<TransferResource, Long> entry : downloads.entrySet()) {
//			long total = entry.getKey().getContentLength();
//			long complete = entry.getValue().longValue();
//
//			buffer.append(getStatus(complete, total)).append("  ");
//		}
//
//		int pad = lastLength - buffer.length();
//		lastLength = buffer.length();
//		pad(buffer, pad);
//		buffer.append('\r');
//
//		out.print(buffer);
//	}
//
//	private String getStatus(long complete, long total) {
//		if (total >= 1024) {
//			return toKB(complete) + "/" + toKB(total) + " KB ";
//		} else if (total >= 0) {
//			return complete + "/" + total + " B ";
//		} else if (complete >= 1024) {
//			return toKB(complete) + " KB ";
//		} else {
//			return complete + " B ";
//		}
//	}
//
//	private void pad(StringBuilder buffer, int spaces) {
//		String block = "                                        ";
//		while (spaces > 0) {
//			int n = Math.min(spaces, block.length());
//			buffer.append(block, 0, n);
//			spaces -= n;
//		}
//	}
//
//	@Override
//	public void transferSucceeded(TransferEvent event) {
//		transferCompleted(event);
//
//		TransferResource resource = event.getResource();
//		long contentLength = event.getTransferredBytes();
//		if (contentLength >= 0) {
//			String type = (event.getRequestType() == TransferEvent.RequestType.PUT ? "Uploaded"
//					: "Downloaded");
//			String len = contentLength >= 1024 ? toKB(contentLength) + " KB"
//					: contentLength + " B";
//
//			String throughput = "";
//			long duration = System.currentTimeMillis()
//					- resource.getTransferStartTime();
//			if (duration > 0) {
//				DecimalFormat format = new DecimalFormat("0.0",
//						new DecimalFormatSymbols(Locale.ENGLISH));
//				double kbPerSec = (contentLength / 1024.0)
//						/ (duration / 1000.0);
//				throughput = " at " + format.format(kbPerSec) + " KB/sec";
//			}
//
//			out.println(type + ": " + resource.getRepositoryUrl()
//					+ resource.getResourceName() + " (" + len + throughput
//					+ ")");
//		}
//	}
//
//	@Override
//	public void transferFailed(TransferEvent event) {
//		transferCompleted(event);
//
//		event.getException().printStackTrace(out);
//	}
//
//	private void transferCompleted(TransferEvent event) {
//		downloads.remove(event.getResource());
//
//		StringBuilder buffer = new StringBuilder(64);
//		pad(buffer, lastLength);
//		buffer.append('\r');
//		out.print(buffer);
//	}
//
//	public void transferCorrupted(TransferEvent event) {
//		event.getException().printStackTrace(out);
//	}
//
//	protected long toKB(long bytes) {
//		return (bytes + 1023) / 1024;
//	}
//
//}