YoungOnion
105 lines
3.6 KiB
Java
105 lines
3.6 KiB
Java
/*
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* This file is part of Applied Energistics 2.
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* Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
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*
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* Applied Energistics 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Applied Energistics 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
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*/
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package appeng.services.version.github;
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import appeng.core.AELog;
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import appeng.services.version.Channel;
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import appeng.services.version.Version;
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import appeng.services.version.VersionCheckerConfig;
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import appeng.services.version.VersionParser;
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import appeng.services.version.exceptions.VersionCheckerException;
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import com.google.gson.Gson;
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import com.google.gson.reflect.TypeToken;
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import org.apache.commons.io.IOUtils;
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import javax.annotation.Nonnull;
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import java.io.IOException;
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import java.lang.reflect.Type;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.List;
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public final class ReleaseFetcher {
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private static final String GITHUB_RELEASES_URL = "https://api.github.com/repos/AppliedEnergistics/Applied-Energistics-2/releases";
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private static final FormattedRelease EXCEPTIONAL_RELEASE = new MissingFormattedRelease();
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@Nonnull
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private final VersionCheckerConfig config;
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@Nonnull
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private final VersionParser parser;
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public ReleaseFetcher(@Nonnull final VersionCheckerConfig config, @Nonnull final VersionParser parser) {
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this.config = config;
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this.parser = parser;
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}
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public FormattedRelease get() {
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final Gson gson = new Gson();
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final Type type = new ReleasesTypeToken().getType();
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try {
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final URL releasesURL = new URL(GITHUB_RELEASES_URL);
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final String rawReleases = this.getRawReleases(releasesURL);
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this.config.updateLastCheck();
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final List<Release> releases = gson.fromJson(rawReleases, type);
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final FormattedRelease latestFitRelease = this.getLatestFitRelease(releases);
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return latestFitRelease;
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} catch (final VersionCheckerException e) {
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AELog.debug(e);
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} catch (final MalformedURLException e) {
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AELog.debug(e);
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} catch (final IOException e) {
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AELog.debug(e);
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}
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return EXCEPTIONAL_RELEASE;
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}
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private String getRawReleases(final URL url) throws IOException {
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return IOUtils.toString(url);
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}
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private FormattedRelease getLatestFitRelease(final Iterable<Release> releases) throws VersionCheckerException {
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final String levelInConfig = this.config.level();
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final Channel level = Channel.valueOf(levelInConfig);
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final int levelOrdinal = level.ordinal();
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for (final Release release : releases) {
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final String rawVersion = release.tag_name;
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final String changelog = release.body;
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final Version version = this.parser.parse(rawVersion);
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if (version.channel().ordinal() >= levelOrdinal) {
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return new DefaultFormattedRelease(version, changelog);
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}
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}
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return EXCEPTIONAL_RELEASE;
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}
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private static final class ReleasesTypeToken extends TypeToken<List<Release>> {
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}
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}
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