001 /*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017 package org.jetbrains.jet.utils;
018
019 import com.intellij.openapi.diagnostic.Logger;
020 import org.jetbrains.annotations.NotNull;
021 import org.jetbrains.annotations.Nullable;
022
023 import java.io.File;
024 import java.io.IOException;
025 import java.io.InputStream;
026 import java.util.Properties;
027 import java.util.jar.Attributes;
028 import java.util.jar.JarFile;
029 import java.util.jar.Manifest;
030
031 public class LibraryUtils {
032 private static final Logger LOG = Logger.getInstance(LibraryUtils.class);
033
034 public static final String TITLE_KOTLIN_JVM_RUNTIME_AND_STDLIB;
035 public static final String TITLE_KOTLIN_JAVASCRIPT_STDLIB;
036
037 static {
038 String jsStdLib = "";
039 String jvmStdLib = "";
040
041 InputStream manifestProperties = LibraryUtils.class.getResourceAsStream("/manifest.properties");
042 if (manifestProperties != null) {
043 try {
044 Properties properties = new Properties();
045 properties.load(manifestProperties);
046 jvmStdLib = properties.getProperty("manifest.impl.title.kotlin.jvm.runtime.and.stdlib");
047 jsStdLib = properties.getProperty("manifest.impl.title.kotlin.javascript.stdlib");
048 }
049 catch (IOException e) {
050 LOG.error(e);
051 }
052 }
053 else {
054 LOG.error("Resource 'manifest.properties' not found.");
055 }
056
057 TITLE_KOTLIN_JVM_RUNTIME_AND_STDLIB = jvmStdLib;
058 TITLE_KOTLIN_JAVASCRIPT_STDLIB = jsStdLib;
059 }
060
061 private LibraryUtils() {}
062
063 @Nullable
064 public static Manifest getManifestFromJar(@NotNull File library) {
065 if (!library.canRead()) return null;
066
067 try {
068 JarFile jarFile = new JarFile(library);
069 try {
070 return jarFile.getManifest();
071 }
072 finally {
073 jarFile.close();
074 }
075 }
076 catch (IOException ignored) {
077 return null;
078 }
079 }
080
081 @Nullable
082 public static Attributes getManifestMainAttributesFromJar(@NotNull File library) {
083 Manifest manifest = getManifestFromJar(library);
084 return manifest != null ? manifest.getMainAttributes() : null;
085 }
086
087 private static boolean checkImplTitle(@NotNull File library, String expected) {
088 Attributes attributes = getManifestMainAttributesFromJar(library);
089 if (attributes == null) return false;
090
091 String title = attributes.getValue(Attributes.Name.IMPLEMENTATION_TITLE);
092 return title != null && title.equals(expected);
093 }
094
095 public static boolean isJsRuntimeLibrary(@NotNull File library) {
096 return checkImplTitle(library, TITLE_KOTLIN_JAVASCRIPT_STDLIB);
097 }
098
099 public static boolean isJvmRuntimeLibrary(@NotNull File library) {
100 return checkImplTitle(library, TITLE_KOTLIN_JVM_RUNTIME_AND_STDLIB);
101 }
102 }