| /* |
| * 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.harmony.luni.util; |
| |
| import java.util.StringTokenizer; |
| import java.util.Iterator; |
| import java.util.jar.*; |
| import java.io.IOException; |
| |
| class Version { |
| /* |
| * Display VM and runtime version information |
| */ |
| private static void displayVMVersion() { |
| String version = System.getProperty("java.version"); |
| if (version != null) System.out.println("java version \"" + version + "\""); |
| |
| String name = System.getProperty("java.runtime.name"); |
| version = System.getProperty("java.runtime.version"); |
| |
| if (name != null) { |
| if (version != null) name = name + " (" + version + ")"; |
| System.out.println(name); |
| } |
| |
| name = System.getProperty("java.vm.name"); |
| version = System.getProperty("java.vm.version"); |
| if (name != null) { |
| if (version != null) name = name + " (" + version + ")"; |
| System.out.println(name); |
| } |
| |
| name = System.getProperty("java.fullversion"); |
| if (name != null) System.out.println(name); |
| } |
| |
| /* |
| * Display extended class library version information |
| */ |
| private static void displayClasslibVersion() { |
| // Get the bootclasspath and tokenise for each jar file |
| String bootclasspath = System.getProperty("org.apache.harmony.boot.class.path"); |
| if (bootclasspath == null) return; |
| |
| StringTokenizer tokenizer = new StringTokenizer(bootclasspath, System.getProperty("path.separator")); |
| |
| while (tokenizer.hasMoreTokens()) { |
| String jarPath = tokenizer.nextToken(); |
| |
| // If the current path is not a jar file, then continue iteration through tokens |
| if (!jarPath.endsWith(".jar")) continue; |
| |
| // Get the jar manifest and find it's name and version info |
| JarFile jarFile; |
| Manifest manifest; |
| try { |
| jarFile = new JarFile(jarPath); |
| manifest = jarFile.getManifest(); |
| } catch (IOException e) { |
| // We have hit an exception - just carry onto the next jar file |
| continue; |
| } |
| |
| // Get the manifest attributes and output those we are interested in |
| Attributes attributes = manifest.getMainAttributes(); |
| if (attributes == null) continue; |
| |
| String bundleName = attributes.getValue("Bundle-Name"); |
| if (bundleName == null) continue; |
| String bundleVersion = attributes.getValue("Bundle-Version"); |
| if (bundleVersion == null) continue; |
| |
| System.out.println(jarPath + " " + bundleName + " " + bundleVersion); |
| } |
| |
| } |
| |
| public static void version(String versionOpt) { |
| if (versionOpt.equals("-version") || versionOpt.equals("-showversion")) { |
| displayVMVersion(); |
| } else if (versionOpt.equals("-version:extended") || versionOpt.equals("-showversion:extended")) { |
| displayVMVersion(); |
| displayClasslibVersion(); |
| } else { |
| System.out.println("Option " + versionOpt + " unrecognised - please use -version, -showversion, -version:extended or -showversion:extended"); |
| } |
| } |
| } |