java.util.jar.Manifest.getMainAttributes()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中java.util.jar.Manifest.getMainAttributes()方法的一些代码示例，展示了Manifest.getMainAttributes()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Manifest.getMainAttributes()方法的具体详情如下：
包路径：java.util.jar.Manifest
类名称：Manifest
方法名：getMainAttributes

Manifest.getMainAttributes介绍

[英]Returns the main Attributes of the JarFile.
[中]返回文件的主要属性。

代码示例

代码示例来源：origin: jenkinsci/jenkins

private String getVersionOf(Manifest manifest) {
  String v = manifest.getMainAttributes().getValue("Plugin-Version");
  if(v!=null)      return v;
  // plugins generated before maven-hpi-plugin 1.3 should still have this attribute
  v = manifest.getMainAttributes().getValue("Implementation-Version");
  if(v!=null)      return v;
  return "???";
}

代码示例来源：origin: jenkinsci/jenkins

protected String identifyPluginShortName(File t) {
  try {
    JarFile j = new JarFile(t);
    try {
      String name = j.getManifest().getMainAttributes().getValue("Short-Name");
      if (name!=null) return name;
    } finally {
      j.close();
    }
  } catch (IOException e) {
    LOGGER.log(WARNING, "Failed to identify the short name from "+t,e);
  }
  return FilenameUtils.getBaseName(t.getName());    // fall back to the base name of what's uploaded
}

代码示例来源：origin: gocd/gocd

private static String defaultMainClassName(JarFile jarFile) throws IOException {
    return jarFile.getManifest().getMainAttributes().getValue("GoCD-Main-Class");
  }
}

代码示例来源：origin: skylot/jadx

public static String getVersion() {
    try {
      ClassLoader classLoader = Jadx.class.getClassLoader();
      if (classLoader != null) {
        Enumeration<URL> resources = classLoader.getResources("META-INF/MANIFEST.MF");
        while (resources.hasMoreElements()) {
          Manifest manifest = new Manifest(resources.nextElement().openStream());
          String ver = manifest.getMainAttributes().getValue("jadx-version");
          if (ver != null) {
            return ver;
          }
        }
      }
    } catch (Exception e) {
      LOG.error("Can't get manifest file", e);
    }
    return "dev";
  }
}

代码示例来源：origin: jenkinsci/jenkins

private static void parseClassPath(Manifest manifest, File archive, List<File> paths, String attributeName, String separator) throws IOException {
  String classPath = manifest.getMainAttributes().getValue(attributeName);
  if(classPath==null) return; // attribute not found
  for (String s : classPath.split(separator)) {
    File file = resolve(archive, s);
    if(file.getName().contains("*")) {
      // handle wildcard
      FileSet fs = new FileSet();
      File dir = file.getParentFile();
      fs.setDir(dir);
      fs.setIncludes(file.getName());
      for( String included : fs.getDirectoryScanner(new Project()).getIncludedFiles() ) {
        paths.add(new File(dir,included));
      }
    } else {
      if(!file.exists())
        throw new IOException("No such file: "+file);
      paths.add(file);
    }
  }
}

代码示例来源：origin: stackoverflow.com

Manifest manifest = new Manifest();
manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
JarOutputStream target = new JarOutputStream(new FileOutputStream("output.jar"), manifest);
add(new File("inputDirectory"), target);
target.close();

代码示例来源：origin: apache/hive

/**
 * Loads the manifest attributes from the jar.
 *
 * @throws java.net.MalformedURLException
 * @throws IOException
 */
private static synchronized void loadManifestAttributes() throws IOException {
 if (manifestAttributes != null) {
  return;
 }
 Class<?> clazz = HiveDriver.class;
 String classContainer = clazz.getProtectionDomain().getCodeSource()
   .getLocation().toString();
 URL manifestUrl = new URL("jar:" + classContainer
   + "!/META-INF/MANIFEST.MF");
 Manifest manifest = new Manifest(manifestUrl.openStream());
 manifestAttributes = manifest.getMainAttributes();
}

代码示例来源：origin: aws/aws-sdk-java

private static String kotlinVersionByJar() {
  StringBuilder kotlinVersion = new StringBuilder("");
  JarInputStream kotlinJar = null;
  try {
    Class<?> kotlinUnit = Class.forName("kotlin.Unit");
    kotlinVersion.append("kotlin");
    kotlinJar = new JarInputStream(kotlinUnit.getProtectionDomain().getCodeSource().getLocation().openStream());
    String version = kotlinJar.getManifest().getMainAttributes().getValue("Implementation-Version");
    concat(kotlinVersion, version, "/");
  } catch (ClassNotFoundException e) {
    //Ignore
  } catch (Exception e) {
    if (log.isTraceEnabled()) {
      log.trace("Exception attempting to get Kotlin version.", e);
    }
  } finally {
    closeQuietly(kotlinJar, log);
  }
  return kotlinVersion.toString();
}

代码示例来源：origin: scouter-project/scouter

public static void print() throws IOException {
  InputStream manifestStream = Thread.currentThread().getContextClassLoader()
      .getResourceAsStream("META-INF/MANIFEST.MF");
  try {
    Manifest manifest = new Manifest(manifestStream);
    Attributes attributes = manifest.getMainAttributes();
    String impVersion = attributes.getValue("Implementation-Version");
    System.out.println(attributes);
  } catch (IOException ex) {
    ex.printStackTrace();
  }
}

代码示例来源：origin: redisson/redisson

/**
 * {@inheritDoc}
 */
public File toJar(File file) throws IOException {
  Manifest manifest = new Manifest();
  manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, MANIFEST_VERSION);
  return toJar(file, manifest);
}

代码示例来源：origin: pxb1988/dex2jar

Manifest input = jar.getManifest();
Manifest output = new Manifest();
Attributes main = output.getMainAttributes();
if (input != null) {
  main.putAll(input.getMainAttributes());

代码示例来源：origin: robovm/robovm

/**
   * Gets all attributes of the manifest file referenced by this {@code
   * JarURLConnection}. If this instance refers to a JAR-file rather than a
   * JAR-file entry, {@code null} will be returned.
   *
   * @return the attributes of the manifest file or {@code null}.
   * @throws IOException
   *                if an I/O exception occurs while retrieving the {@code
   *                JarFile}.
   */
  public Attributes getMainAttributes() throws java.io.IOException {
    Manifest m = getJarFile().getManifest();
    return (m == null) ? null : m.getMainAttributes();
  }
}

代码示例来源：origin: stackoverflow.com

Class clazz = MyClass.class;
String className = clazz.getSimpleName() + ".class";
String classPath = clazz.getResource(className).toString();
if (!classPath.startsWith("jar")) {
 // Class not from JAR
 return;
}
String manifestPath = classPath.substring(0, classPath.lastIndexOf("!") + 1) + 
  "/META-INF/MANIFEST.MF";
Manifest manifest = new Manifest(new URL(manifestPath).openStream());
Attributes attr = manifest.getMainAttributes();
String value = attr.getValue("Manifest-Version");

代码示例来源：origin: gocd/gocd

public static String getCruiseVersion(String jar) {
  String version = null;
  try {
    JarFile jarFile = new JarFile(jar);
    Manifest manifest = jarFile.getManifest();
    if (manifest != null) {
      Attributes attributes = manifest.getMainAttributes();
      version = attributes.getValue("Go-Version");
    }
  } catch (IOException e) {
  }
  return version;
}

代码示例来源：origin: redisson/redisson

Attributes attributes = manifest.getMainAttributes();
if (attributes == null) {
  return;
String s = attributes.getValue(Attributes.Name.CLASS_PATH);
if (s == null) {
  return;
    file = new File(base, t);
    file = file.getCanonicalFile();
    if (!file.exists()) {
      file = new File(t);
      file = file.getCanonicalFile();
      if (!file.exists()) {
      URL url = new URL(t);
      file = new File(url.getFile());
      file = file.getCanonicalFile();
      if (!file.exists()) {

代码示例来源：origin: apache/geode

Path locationPath = new File(location).getCanonicalFile().toPath();
Files.createDirectories(locationPath);
Manifest manifest = new Manifest();
Attributes global = manifest.getMainAttributes();
global.put(Attributes.Name.MANIFEST_VERSION, "1.0.0");
global.put(new Attributes.Name("Class-Path"), String.join(" ", manifestEntries));

代码示例来源：origin: chewiebug/GCViewer

/**
 * Returns Manifest-Attributes for MANIFEST.MF, if running for a .jar file
 *
 * @return Manifest Attributes (may be empty but never null)
 * @throws IOException If something went wrong finding the MANIFEST file
 * @see <a href="http://stackoverflow.com/a/1273432">stackoverflow article</a>
 */
private static Attributes getAttributes() throws IOException {
  Class clazz = BuildInfoReader.class;
  String className = clazz.getSimpleName() + ".class";
  String classPath = clazz.getResource(className).toString();
  if (!classPath.startsWith("jar")) {
    // Class not from JAR
    return new Attributes(0);
  }
  String manifestPath = classPath.substring(0, classPath.lastIndexOf("!") + 1) + FILE_NAME;
  Manifest manifest = new Manifest(new URL(manifestPath).openStream());
  return manifest.getMainAttributes();
}

代码示例来源：origin: jenkinsci/jenkins

static String computeShortName(Manifest manifest, String fileName) {
  // use the name captured in the manifest, as often plugins
  // depend on the specific short name in its URLs.
  String n = manifest.getMainAttributes().getValue("Short-Name");
  if(n!=null)     return n;
  // maven seems to put this automatically, so good fallback to check.
  n = manifest.getMainAttributes().getValue("Extension-Name");
  if(n!=null)     return n;
  // otherwise infer from the file name, since older plugins don't have
  // this entry.
  return getBaseName(fileName);
}

代码示例来源：origin: scouter-project/scouter

public static void print() throws IOException {
  InputStream manifestStream = Thread.currentThread().getContextClassLoader()
      .getResourceAsStream("META-INF/MANIFEST.MF");
  try {
    Manifest manifest = new Manifest(manifestStream);
    Attributes attributes = manifest.getMainAttributes();
    String impVersion = attributes.getValue("Implementation-Version");
    System.out.println(attributes);
  } catch (IOException ex) {
    ex.printStackTrace();
  }
}

代码示例来源：origin: gocd/gocd

private static String getManifestKey(JarFile jarFile, String key) {
  try {
    Manifest manifest = jarFile.getManifest();
    if (manifest != null) {
      Attributes attributes = manifest.getMainAttributes();
      return attributes.getValue(key);
    }
  } catch (IOException e) {
    LOG.error("Exception while trying to read key {} from manifest of {}", key, jarFile.getName(), e);
  }
  return null;
}

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