本文整理了Java中org.apache.nifi.util.file.FileUtils.copyFile()方法的一些代码示例，展示了FileUtils.copyFile()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。FileUtils.copyFile()方法的具体详情如下：
包路径：org.apache.nifi.util.file.FileUtils
类名称：FileUtils
方法名：copyFile

FileUtils.copyFile介绍

[英]Copies the given source file to the given destination file. The given destination will be overwritten if it already exists.
[中]将给定的源文件复制到给定的目标文件。如果给定目标已存在，则将覆盖该目标。

代码示例

代码示例来源：origin: apache/nifi

/**
 * Copies the given source file to the given destination file. The given destination will be overwritten if it already exists.
 *
 * @param source the file to copy from
 * @param destination the file to copy to
 * @param lockInputFile if true will lock input file during copy; if false will not
 * @param lockOutputFile if true will lock output file during copy; if false will not
 * @param logger the logger to use
 * @return long number of bytes copied
 * @throws FileNotFoundException if the source file could not be found
 * @throws IOException if unable to read or write to file
 * @throws SecurityException if a security manager denies the needed file operations
 */
public static long copyFile(final File source, final File destination, final boolean lockInputFile, final boolean lockOutputFile, final Logger logger) throws FileNotFoundException, IOException {
  return FileUtils.copyFile(source, destination, lockInputFile, lockOutputFile, false, logger);
}

代码示例来源：origin: apache/nifi

/**
 * Syncs a primary copy of a file with the copy in the restore directory. If the restore directory does not have a file and the primary has a file, the the primary's file is copied to the restore
 * directory. Else if the restore directory has a file, but the primary does not, then the restore's file is copied to the primary directory. Else if the primary file is different than the restore
 * file, then an IllegalStateException is thrown. Otherwise, if neither file exists, then no syncing is performed.
 *
 * @param primaryFile the primary file
 * @param restoreFile the restore file
 * @param logger a logger
 * @throws IOException if an I/O problem was encountered during syncing
 * @throws IllegalStateException if the primary and restore copies exist but are different
 */
public static void syncWithRestore(final File primaryFile, final File restoreFile, final Logger logger)
    throws IOException {
  if (primaryFile.exists() && !restoreFile.exists()) {
    // copy primary file to restore
    copyFile(primaryFile, restoreFile, false, false, logger);
  } else if (restoreFile.exists() && !primaryFile.exists()) {
    // copy restore file to primary
    copyFile(restoreFile, primaryFile, false, false, logger);
  } else if (primaryFile.exists() && restoreFile.exists() && !isSame(primaryFile, restoreFile)) {
    throw new IllegalStateException(String.format("Primary file '%s' is different than restore file '%s'",
        primaryFile.getAbsoluteFile(), restoreFile.getAbsolutePath()));
  }
}

代码示例来源：origin: apache/nifi

FileUtils.copyFile(tenantsFile, restoreTenantsFile, false, false, logger);

代码示例来源：origin: apache/nifi

FileUtils.copyFile(authorizationsFile, restoreAuthorizationsFile, false, false, logger);

代码示例来源：origin: org.apache.nifi/nifi-utils

/**
 * Copies the given source file to the given destination file. The given destination will be overwritten if it already exists.
 *
 * @param source the file to copy from
 * @param destination the file to copy to
 * @param lockInputFile if true will lock input file during copy; if false will not
 * @param lockOutputFile if true will lock output file during copy; if false will not
 * @param logger the logger to use
 * @return long number of bytes copied
 * @throws FileNotFoundException if the source file could not be found
 * @throws IOException if unable to read or write to file
 * @throws SecurityException if a security manager denies the needed file operations
 */
public static long copyFile(final File source, final File destination, final boolean lockInputFile, final boolean lockOutputFile, final Logger logger) throws FileNotFoundException, IOException {
  return FileUtils.copyFile(source, destination, lockInputFile, lockOutputFile, false, logger);
}

代码示例来源：origin: org.apache.nifi/nifi-utils

/**
 * Syncs a primary copy of a file with the copy in the restore directory. If the restore directory does not have a file and the primary has a file, the the primary's file is copied to the restore
 * directory. Else if the restore directory has a file, but the primary does not, then the restore's file is copied to the primary directory. Else if the primary file is different than the restore
 * file, then an IllegalStateException is thrown. Otherwise, if neither file exists, then no syncing is performed.
 *
 * @param primaryFile the primary file
 * @param restoreFile the restore file
 * @param logger a logger
 * @throws IOException if an I/O problem was encountered during syncing
 * @throws IllegalStateException if the primary and restore copies exist but are different
 */
public static void syncWithRestore(final File primaryFile, final File restoreFile, final Logger logger)
    throws IOException {
  if (primaryFile.exists() && !restoreFile.exists()) {
    // copy primary file to restore
    copyFile(primaryFile, restoreFile, false, false, logger);
  } else if (restoreFile.exists() && !primaryFile.exists()) {
    // copy restore file to primary
    copyFile(restoreFile, primaryFile, false, false, logger);
  } else if (primaryFile.exists() && restoreFile.exists() && !isSame(primaryFile, restoreFile)) {
    throw new IllegalStateException(String.format("Primary file '%s' is different than restore file '%s'",
        primaryFile.getAbsoluteFile(), restoreFile.getAbsolutePath()));
  }
}