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[FEATURE] ListDownloader.

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Zaxar163 2019-03-28 11:48:13 +03:00
parent 22db53a7c8
commit ac3456f62e
1 changed files with 52 additions and 0 deletions
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LauncherAPI/src/main/java/ru/gravit/launcher/downloader/ListDownloader.java Normal file
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package ru.gravit.launcher.downloader;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.Path;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.client.LaxRedirectStrategy;
import ru.gravit.utils.helper.IOHelper;
public class ListDownloader {
public void download(String base, List<String> applies, Path dstDirFile) throws IOException, URISyntaxException {
try(CloseableHttpClient httpclient = HttpClients.custom()
.setRedirectStrategy(new LaxRedirectStrategy())
.build()) {
HttpGet get = null;
for (String apply : applies) {
URI u = new URL(base.concat(apply)).toURI();
if (get == null) get = new HttpGet(u);
else {
get.reset();
get.setURI(u);
}
httpclient.execute(get, new FileDownloadResponseHandler(dstDirFile.resolve(apply)));
}
}
}
static class FileDownloadResponseHandler implements ResponseHandler<Path> {
private final Path target;
public FileDownloadResponseHandler(Path target) {
this.target = target;
}
@Override
public Path handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
InputStream source = response.getEntity().getContent();
IOHelper.transfer(source, this.target);
return this.target;
}
}
}