Java tutorial
/* * Copyright (c) 2017 Public Library of Science * * 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 org.ambraproject.wombat.util; import com.google.common.base.MoreObjects; import com.google.common.base.Strings; import com.google.common.collect.ImmutableSet; import java.util.Collection; /** * An object encapsulating properties of a build of an application (either this one, or the service component). * * @see org.ambraproject.wombat.service.BuildInfoService */ public class BuildInfo { private final String version; private final String date; private final String user; private final String gitCommitIdAbbrev; private ImmutableSet<String> enabledDevFeatures; public BuildInfo(String version, String date, String user, String gitCommitIdAbbrev, Collection<String> enabledDevFeatures) { this.version = Strings.nullToEmpty(version); this.date = Strings.nullToEmpty(date); this.user = Strings.nullToEmpty(user); this.gitCommitIdAbbrev = Strings.nullToEmpty(gitCommitIdAbbrev); this.enabledDevFeatures = (enabledDevFeatures == null) ? ImmutableSet.<String>of() : ImmutableSet.copyOf(enabledDevFeatures); } /** * @return the build's version number */ public String getVersion() { return version; } /** * @return a timestamp of the build (format is unspecified) */ public String getDate() { return date; } /** * @return the username of the agent that performed the build */ public String getUser() { return user; } /** * @return the git commit short hash of the code */ public String getGitCommitIdAbbrev() { return gitCommitIdAbbrev; } /** * @return a string describing the list of enabled dev features */ public ImmutableSet<String> getEnabledDevFeatures() { return enabledDevFeatures; } @Override public String toString() { return MoreObjects.toStringHelper(this).add("version", version).add("date", date).add("user", user) .add("gitCommitIdAbbrev", gitCommitIdAbbrev).add("enabledDevFeatures", enabledDevFeatures) .toString(); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; BuildInfo buildInfo = (BuildInfo) o; if (!date.equals(buildInfo.date)) return false; if (!user.equals(buildInfo.user)) return false; if (!version.equals(buildInfo.version)) return false; if (!gitCommitIdAbbrev.equals(buildInfo.gitCommitIdAbbrev)) return false; if (!enabledDevFeatures.equals(buildInfo.enabledDevFeatures)) return false; return true; } @Override public int hashCode() { int result = version.hashCode(); result = 31 * result + date.hashCode(); result = 31 * result + user.hashCode(); result = 31 * result + gitCommitIdAbbrev.hashCode(); result = 31 * result + enabledDevFeatures.hashCode(); return result; } }