/*
* Copyright 2012-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.cli.compiler.grape;
import java.io.PrintStream;
import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.transfer.AbstractTransferListener;
import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;
import org.eclipse.aether.transfer.TransferResource;
/**
* Provide detailed progress feedback for long running resolves.
*
* @author Andy Wilkinson
*/
final class DetailedProgressReporter implements ProgressReporter {
DetailedProgressReporter(DefaultRepositorySystemSession session,
final PrintStream out) {
session.setTransferListener(new AbstractTransferListener() {
@Override
public void transferStarted(TransferEvent event)
throws TransferCancelledException {
out.println("Downloading: " + getResourceIdentifier(event.getResource()));
}
@Override
public void transferSucceeded(TransferEvent event) {
out.printf("Downloaded: %s (%s)%n",
getResourceIdentifier(event.getResource()),
getTransferSpeed(event));
}
});
}
private String getResourceIdentifier(TransferResource resource) {
return resource.getRepositoryUrl() + resource.getResourceName();
}
private String getTransferSpeed(TransferEvent event) {
long kb = event.getTransferredBytes() / 1024;
float seconds = (System.currentTimeMillis()
- event.getResource().getTransferStartTime()) / 1000.0f;
return String.format("%dKB at %.1fKB/sec", kb, (kb / seconds));
}
@Override
public void finished() {
}
}