hudson.Util.resolveSymlink()方法的使用及代码示例

x33g5p2x  于2022-01-31 转载在 其他  
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本文整理了Java中hudson.Util.resolveSymlink()方法的一些代码示例，展示了Util.resolveSymlink()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。Util.resolveSymlink()方法的具体详情如下：
包路径：hudson.Util
类名称：Util
方法名：resolveSymlink

Util.resolveSymlink介绍

[英]Resolves symlink, if the given file is a symlink. Otherwise return null.

If the resolution fails, report an error.
[中]如果给定文件是符号链接，则解析符号链接。否则返回null。
如果解决方案失败，请报告错误。

代码示例

代码示例来源：origin: jenkinsci/jenkins

  1. @Override
  2.   public String invoke(File f, VirtualChannel channel) throws IOException, InterruptedException {
  3.     return Util.resolveSymlink(reading(f));
  4.   }
  5. }

代码示例来源：origin: jenkinsci/jenkins

  1. /**
  2.  * @deprecated as of 1.456
  3.  *      Use {@link #resolveSymlink(File)}
  4.  */
  5. @Deprecated
  6. public static String resolveSymlink(File link, TaskListener listener) throws InterruptedException, IOException {
  7.   return resolveSymlink(link);
  8. }

代码示例来源：origin: jenkinsci/jenkins

  1. /**
  2.  * Resolves a symlink to the {@link File} that points to.
  3.  *
  4.  * @return null
  5.  *      if the specified file is not a symlink.
  6.  */
  7. @CheckForNull
  8. public static File resolveSymlinkToFile(@Nonnull File link) throws InterruptedException, IOException {
  9.   String target = resolveSymlink(link);
  10.   if (target==null)   return null;
  11.   File f = new File(target);
  12.   if (f.isAbsolute()) return f;   // absolute symlink
  13.   return new File(link.getParentFile(),target);   // relative symlink
  14. }

代码示例来源：origin: jenkinsci/jenkins

  1. @Override public String readLink() throws IOException {
  2.   if (isIllegalSymlink()) {
  3.     return null; // best to just ignore link -> ../whatever
  4.   }
  5.   return Util.resolveSymlink(f);
  6. }
  7. @Override public VirtualFile[] list() throws IOException {

代码示例来源：origin: jenkinsci/jenkins

  1. static String readSymlink(File cache) throws IOException, InterruptedException {
  2.   synchronized (symlinks) {
  3.     String target = symlinks.get(cache);
  4.     if (target != null) {
  5.       LOGGER.log(Level.FINE, "readSymlink cached {0} → {1}", new Object[] {cache, target});
  6.       return target;
  7.     }
  8.   }
  9.   String target = Util.resolveSymlink(cache);
  10.   if (target==null && cache.exists()) {
  11.     // if this file isn't a symlink, it must be a regular file
  12.     target = FileUtils.readFileToString(cache,"UTF-8").trim();
  13.   }
  14.   LOGGER.log(Level.FINE, "readSymlink {0} → {1}", new Object[] {cache, target});
  15.   synchronized (symlinks) {
  16.     symlinks.put(cache, target);
  17.   }
  18.   return target;
  19. }

代码示例来源：origin: jenkinsci/jenkins

  1. LOGGER.log(FINE, "deleting build number symlink {0} → {1}", new Object[] {name, Util.resolveSymlink(kid)});
  2. } else if (kid.isDirectory()) {
  3.   LOGGER.log(FINE, "ignoring build directory {0}", name);

代码示例来源：origin: jenkinsci/jenkins

  1. static void writeSymlink(File cache, String target) throws IOException, InterruptedException {
  2.   LOGGER.log(Level.FINE, "writeSymlink {0} → {1}", new Object[] {cache, target});
  3.   synchronized (symlinks) {
  4.     symlinks.put(cache, target);
  5.   }
  6.   StringWriter w = new StringWriter();
  7.   StreamTaskListener listener = new StreamTaskListener(w);
  8.   Util.createSymlink(cache.getParentFile(),target,cache.getName(),listener);
  9.   // Avoid calling resolveSymlink on a nonexistent file as it will probably throw an IOException:
  10.   if (!exists(cache) || Util.resolveSymlink(cache)==null) {
  11.    // symlink not supported. use a regular file
  12.    AtomicFileWriter cw = new AtomicFileWriter(cache);
  13.    try {
  14.      cw.write(target);
  15.      cw.commit();
  16.    } finally {
  17.      cw.abort();
  18.    }
  19.   }
  20. }

代码示例来源：origin: jenkinsci/jenkins

  1. /**
  2.  * @since 1.532
  3.  */
  4. protected final void scanSingle(File f, String relative, FileVisitor visitor) throws IOException {
  5.   if (visitor.understandsSymlink()) {
  6.     String target;
  7.     try {
  8.       target = Util.resolveSymlink(f);
  9.     } catch (IOException x) { // JENKINS-13202
  10.       target = null;
  11.     }
  12.     if (target != null) {
  13.       visitor.visitSymlink(f, target, relative);
  14.       return;
  15.     }
  16.   }
  17.   visitor.visit(f, relative);
  18. }

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. public String invoke(File f, VirtualChannel channel) throws IOException, InterruptedException {
  2.     return Util.resolveSymlink(reading(f));
  3.   }
  4. });

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. /**
  2.  * @deprecated as of 1.456
  3.  *      Use {@link #resolveSymlink(File)}
  4.  */
  5. @Deprecated
  6. public static String resolveSymlink(File link, TaskListener listener) throws InterruptedException, IOException {
  7.   return resolveSymlink(link);
  8. }

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. /**
  2.  * Resolves a symlink to the {@link File} that points to.
  3.  *
  4.  * @return null
  5.  *      if the specified file is not a symlink.
  6.  */
  7. @CheckForNull
  8. public static File resolveSymlinkToFile(@Nonnull File link) throws InterruptedException, IOException {
  9.   String target = resolveSymlink(link);
  10.   if (target==null)   return null;
  11.   File f = new File(target);
  12.   if (f.isAbsolute()) return f;   // absolute symlink
  13.   return new File(link.getParentFile(),target);   // relative symlink
  14. }

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. static String readSymlink(File cache) throws IOException, InterruptedException {
  2.   synchronized (symlinks) {
  3.     String target = symlinks.get(cache);
  4.     if (target != null) {
  5.       LOGGER.log(Level.FINE, "readSymlink cached {0} → {1}", new Object[] {cache, target});
  6.       return target;
  7.     }
  8.   }
  9.   String target = Util.resolveSymlink(cache);
  10.   if (target==null && cache.exists()) {
  11.     // if this file isn't a symlink, it must be a regular file
  12.     target = FileUtils.readFileToString(cache,"UTF-8").trim();
  13.   }
  14.   LOGGER.log(Level.FINE, "readSymlink {0} → {1}", new Object[] {cache, target});
  15.   synchronized (symlinks) {
  16.     symlinks.put(cache, target);
  17.   }
  18.   return target;
  19. }

代码示例来源：origin: org.eclipse.hudson.main/hudson-core

  1. private void scan(File f, String path, FileVisitor visitor) throws IOException {
  2.   if (f.canRead()) {
  3.     if (visitor.understandsSymlink()) {
  4.       String target = Util.resolveSymlink(f, TaskListener.NULL);
  5.       if (target != null) {
  6.         visitor.visitSymlink(f, target, path + f.getName());
  7.         return;
  8.       } 
  9.     }
  10.     visitor.visit(f,path+f.getName());
  11.     if(f.isDirectory()) {
  12.       for( File child : f.listFiles() )
  13.         scan(child,path+f.getName()+'/',visitor);
  14.     }
  15.   }
  16. }

代码示例来源：origin: hudson/hudson-2.x

  1. private void scan(File f, String path, FileVisitor visitor) throws IOException {
  2.   if (f.canRead()) {
  3.     if (visitor.understandsSymlink()) {
  4.       try {
  5.         String target = Util.resolveSymlink(f, TaskListener.NULL);
  6.         if (target!=null) {
  7.           visitor.visitSymlink(f,target,path+f.getName());
  8.           return;
  9.         }
  10.       } catch (InterruptedException e) {
  11.         throw (IOException)new InterruptedIOException().initCause(e);
  12.       }
  13.     }
  14.     visitor.visit(f,path+f.getName());
  15.     if(f.isDirectory()) {
  16.       for( File child : f.listFiles() )
  17.         scan(child,path+f.getName()+'/',visitor);
  18.     }
  19.   }
  20. }

代码示例来源：origin: org.jvnet.hudson.main/hudson-core

  1. private void scan(File f, String path, FileVisitor visitor) throws IOException {
  2.   if (f.canRead()) {
  3.     if (visitor.understandsSymlink()) {
  4.       try {
  5.         String target = Util.resolveSymlink(f, TaskListener.NULL);
  6.         if (target!=null) {
  7.           visitor.visitSymlink(f,target,path+f.getName());
  8.           return;
  9.         }
  10.       } catch (InterruptedException e) {
  11.         throw (IOException)new InterruptedIOException().initCause(e);
  12.       }
  13.     }
  14.     visitor.visit(f,path+f.getName());
  15.     if(f.isDirectory()) {
  16.       for( File child : f.listFiles() )
  17.         scan(child,path+f.getName()+'/',visitor);
  18.     }
  19.   }
  20. }

代码示例来源：origin: org.eclipse.hudson/hudson-core

  1. private void scan(File f, String path, FileVisitor visitor) throws IOException {
  2.   if (f.canRead()) {
  3.     if (visitor.understandsSymlink()) {
  4.       String target = Util.resolveSymlink(f, TaskListener.NULL);
  5.       if (target != null) {
  6.         visitor.visitSymlink(f, target, path + f.getName());
  7.         return;
  8.       }
  9.     }
  10.     visitor.visit(f, path + f.getName());
  11.     if (f.isDirectory()) {
  12.       for (File child : f.listFiles()) {
  13.         scan(child, path + f.getName() + '/', visitor);
  14.       }
  15.     }
  16.   }
  17. }

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. /**
  2.  * @since 1.532
  3.  */
  4. protected final void scanSingle(File f, String relative, FileVisitor visitor) throws IOException {
  5.   if (visitor.understandsSymlink()) {
  6.     try {
  7.       String target;
  8.       try {
  9.         target = Util.resolveSymlink(f);
  10.       } catch (IOException x) { // JENKINS-13202
  11.         target = null;
  12.       }
  13.       if (target != null) {
  14.         visitor.visitSymlink(f, target, relative);
  15.         return;
  16.       }
  17.     } catch (InterruptedException e) {
  18.       throw (IOException) new InterruptedIOException().initCause(e);
  19.     }
  20.   }
  21.   visitor.visit(f, relative);
  22. }

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. LOGGER.log(FINE, "deleting build number symlink {0} → {1}", new Object[] {name, Util.resolveSymlink(kid)});
  2. } else if (kid.isDirectory()) {
  3.   LOGGER.log(FINE, "ignoring build directory {0}", name);

代码示例来源：origin: org.jenkins-ci.main/jenkins-core

  1. static void writeSymlink(File cache, String target) throws IOException, InterruptedException {
  2.   LOGGER.log(Level.FINE, "writeSymlink {0} → {1}", new Object[] {cache, target});
  3.   synchronized (symlinks) {
  4.     symlinks.put(cache, target);
  5.   }
  6.   StringWriter w = new StringWriter();
  7.   StreamTaskListener listener = new StreamTaskListener(w);
  8.   Util.createSymlink(cache.getParentFile(),target,cache.getName(),listener);
  9.   // Avoid calling resolveSymlink on a nonexistent file as it will probably throw an IOException:
  10.   if (!exists(cache) || Util.resolveSymlink(cache)==null) {
  11.    // symlink not supported. use a regular file
  12.    AtomicFileWriter cw = new AtomicFileWriter(cache);
  13.    try {
  14.      cw.write(target);
  15.      cw.commit();
  16.    } finally {
  17.      cw.abort();
  18.    }
  19.   }
  20. }

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