Examples of java.io.File.canExecute()

java.io.File.canExecute()
Tests whether the application can execute the file denoted by this abstract pathname. @return true if and only if the abstract pathname existsand the application is allowed to execute the file @throws SecurityException If a security manager exists and its {@link java.lang.SecurityManager#checkExec(java.lang.String)} method denies execute access to the file @since 1.6

  @Test
  public void testContainerLaunchError() throws IOException {


    // reinitialize executer
    File f = new File("./src/test/resources/mock-container-executer-with-error");
    if (!f.canExecute()) {
      f.setExecutable(true);
    }
    String executorPath = f.getAbsolutePath();
    Configuration conf = new Configuration();
    conf.set(YarnConfiguration.NM_LINUX_CONTAINER_EXECUTOR_PATH, executorPath);

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        for (String dataDir : dirs)
        {
            logger.debug("Checking directory {}", dataDir);
            File dir = new File(dataDir);
            if (dir.exists())
                assert dir.isDirectory() && dir.canRead() && dir.canWrite() && dir.canExecute()
                    : String.format("Directory %s is not accessible.", dataDir);
        }


        // Migrate sstables from pre-#2749 to the correct location
        if (Directories.sstablesNeedsMigration())

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    if (!dir.exists() || !dir.isDirectory() || !dir.canRead() ) {
      updateStatus("You must specify a valid Application Directory.");
      return;
    }
    File exec = new File(containerTextExecFile.getText());
    if (!exec.exists() ||  !exec.isFile() || !exec.canExecute()) {
      updateStatus("You must specify a valid Application Executable.");
      return;
    }

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               if (showAll || !el.startsWith("."))
               {
                  StringBuilder permissions = new StringBuilder(dir ? "d" : "-")
                           .append(file.canRead() ? 'r' : '-')
                           .append(file.canWrite() ? 'w' : '-')
                           .append(file.canExecute() ? 'x' : '-')
                           .append("------");


                  subList.add(permissions.toString());
                  subList.add("owner"); // not supported
                  subList.add(" users "); // not supported

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               if (showAll || !el.startsWith("."))
               {
                  StringBuilder permissions = new StringBuilder(dir ? "d" : "-")
                           .append(file.canRead() ? 'r' : '-')
                           .append(file.canWrite() ? 'w' : '-')
                           .append(file.canExecute() ? 'x' : '-')
                           .append("------");


                  subList.add(permissions.toString());
                  subList.add("owner"); // not supported
                  subList.add(" users "); // not supported

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  }
  
  @Before
  public void setup() {
    File f = new File("./src/test/resources/mock-container-executor");
    if(!f.canExecute()) {
      f.setExecutable(true);
    }
    String executorPath = f.getAbsolutePath();
    Configuration conf = new Configuration();
    conf.set(YarnConfiguration.NM_LINUX_CONTAINER_EXECUTOR_PATH, executorPath);

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    final String pref = mainApp.getPrefValue("GeneralSettingsAutoLoadDir");
    if(pref.isEmpty())
      return;
    
    final File autoLoadDir = new File(pref);
    if(!autoLoadDir.isDirectory() || !autoLoadDir.canRead() || !autoLoadDir.canExecute())
      return;


    // directory exists, so load all nzb files from it
    boolean okToDel = false;
    File [] files = autoLoadDir.listFiles();

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        return;
      }
      
      // also check whether or not the selected file is an executable program file
      File file = new File(loc);
      if(!file.exists() || file.isDirectory() || !file.canExecute())
      {
        // no executable file!
        String msg = localer.getBundleText("PopupPar2IsNotExecutable");
        JOptionPane.showMessageDialog(jframe, msg, errorTitle, JOptionPane.ERROR_MESSAGE);
        return;

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  {
    // does data directory exists?
    String datadirPath = System.getProperty("user.home") + File.separator + ".HelloNzb" + File.separator;
    File datadir = new File(datadirPath);
    
    if(!datadir.isDirectory() || !datadir.canRead() || !datadir.canExecute())
    {
      logger.msg("Could not load last session, specified folder is no directory or non-readable", MyLogger.SEV_DEBUG);
      return;
    }

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  {
    if(targetFolderName == null || targetFolderName.isEmpty())
      return;


    File targetFolder = new File(targetFolderName);
    if(!targetFolder.isDirectory() || !targetFolder.canRead() || !targetFolder.canExecute())
    {
      System.err.println("Could not move extracted files, invalid target directory");
      return;
    }

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