Files
SCM-Manager/scm-webapp/src/main/java/sonia/scm/admin/ReleaseFeedParser.java
2020-09-24 10:38:40 +02:00

74 lines
2.7 KiB
Java

/*
* MIT License
*
* Copyright (c) 2020-present Cloudogu GmbH and Contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package sonia.scm.admin;
import com.google.common.base.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import sonia.scm.net.ahc.AdvancedHttpClient;
import sonia.scm.version.Version;
import javax.inject.Inject;
import java.io.IOException;
import java.util.Comparator;
import java.util.Optional;
public class ReleaseFeedParser {
private static final Logger LOG = LoggerFactory.getLogger(ReleaseFeedParser.class);
private final AdvancedHttpClient client;
@Inject
public ReleaseFeedParser(AdvancedHttpClient client) {
this.client = client;
}
Optional<UpdateInfo> findLatestRelease(String url) {
LOG.info("Search for newer versions of SCM-Manager");
Optional<ReleaseFeedDto.Release> latestRelease = parseLatestReleaseFromRssFeed(url);
return latestRelease.map(release -> new UpdateInfo(release.getTitle(), release.getLink()));
}
private Optional<ReleaseFeedDto.Release> parseLatestReleaseFromRssFeed(String url) {
try {
if (Strings.isNullOrEmpty(url)) {
return Optional.empty();
}
ReleaseFeedDto releaseFeed = client.get(url).request().contentFromXml(ReleaseFeedDto.class);
return filterForLatestRelease(releaseFeed);
} catch (IOException e) {
LOG.error("Could not parse release feed from {}", url, e);
return Optional.empty();
}
}
private Optional<ReleaseFeedDto.Release> filterForLatestRelease(ReleaseFeedDto releaseFeed) {
return releaseFeed.getChannel().getReleases()
.stream()
.min(Comparator.comparing(release -> Version.parse(release.getTitle().trim())));
}
}