| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.sysds.api.mlcontext; |
| |
| import java.util.Set; |
| import java.util.SortedMap; |
| import java.util.TreeMap; |
| import java.util.jar.Attributes; |
| import java.util.jar.Attributes.Name; |
| import java.util.jar.JarFile; |
| import java.util.jar.Manifest; |
| |
| /** |
| * Obtains information that is stored in the manifest when the SystemDS jar is |
| * built. |
| * |
| */ |
| public class ProjectInfo { |
| |
| SortedMap<String, String> properties = null; |
| static ProjectInfo projectInfo = null; |
| |
| /** |
| * Return a ProjectInfo singleton instance. |
| * |
| * @return the ProjectInfo singleton instance |
| */ |
| public static ProjectInfo getProjectInfo() { |
| if (projectInfo == null) { |
| projectInfo = new ProjectInfo(); |
| } |
| return projectInfo; |
| } |
| |
| private ProjectInfo() { |
| String path = getClass().getProtectionDomain().getCodeSource().getLocation().getPath(); |
| try(JarFile systemDsJar = new JarFile(path)) { |
| Manifest manifest = systemDsJar.getManifest(); |
| Attributes mainAttributes = manifest.getMainAttributes(); |
| properties = new TreeMap<>(); |
| for (Object key : mainAttributes.keySet()) { |
| String value = mainAttributes.getValue((Name) key); |
| properties.put(key.toString(), value); |
| } |
| } catch (Exception e) { |
| throw new MLContextException("Error trying to read from manifest in SystemDS jar file", e); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer sb = new StringBuffer(); |
| Set<String> keySet = properties.keySet(); |
| for (String key : keySet) { |
| sb.append(key + ": " + properties.get(key) + "\n"); |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * Obtain a manifest property value based on the key. |
| * |
| * @param key |
| * the property key |
| * @return the property value |
| */ |
| public String property(String key) { |
| return properties.get(key); |
| } |
| |
| /** |
| * Obtain the project version from the manifest. |
| * |
| * @return the project version |
| */ |
| public String version() { |
| return property("Version"); |
| } |
| |
| /** |
| * Object the artifact build time from the manifest. |
| * |
| * @return the artifact build time |
| */ |
| public String buildTime() { |
| return property("Build-Time"); |
| } |
| |
| /** |
| * Obtain the minimum recommended Spark version from the manifest. |
| * |
| * @return the minimum recommended Spark version |
| */ |
| public String minimumRecommendedSparkVersion() { |
| return property("Minimum-Recommended-Spark-Version"); |
| } |
| |
| /** |
| * Obtain all the properties from the manifest as a sorted map. |
| * |
| * @return the manifest properties as a sorted map |
| */ |
| public SortedMap<String, String> properties() { |
| return properties; |
| } |
| |
| } |