?? FileSystem

java.lang.Object
java.lang.Enum<FileSystem>
org.apache.commons.io.FileSystem
????????:
Serializable, Comparable<FileSystem>, java.lang.constant.Constable

public enum FileSystem extends Enum<FileSystem>
Abstracts an OS' file system details, currently supporting the single use case of converting a file name String to a legal file name with toLegalFileName(String, char).

The starting point of any operation is getCurrent() which gets you the enum for the file system that matches the OS hosting the running JVM.

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2.7
  • ????????

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    • values

      public static FileSystem[] values()
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    • valueOf

      public static FileSystem valueOf(String name)
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      ??:
      name - ????????????
      ??:
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      IllegalArgumentException - ??????????????????
      NullPointerException - ???????
    • getCurrent

      public static FileSystem getCurrent()
      Gets the current file system.
      ??:
      the current file system
    • getIllegalFileNameChars

      public char[] getIllegalFileNameChars()
      Gets a cloned copy of the illegal characters for this file system.
      ??:
      the illegal characters for this file system.
    • getMaxFileNameLength

      public int getMaxFileNameLength()
      Gets the maximum length for file names. The file name does not include folders.
      ??:
      the maximum length for file names.
    • getMaxPathLength

      public int getMaxPathLength()
      Gets the maximum length of the path to a file. This can include folders.
      ??:
      the maximum length of the path to a file.
    • getReservedFileNames

      Gets a cloned copy of the reserved file names.
      ??:
      the reserved file names.
    • isCasePreserving

      public boolean isCasePreserving()
      Whether this file system preserves case.
      ??:
      Whether this file system preserves case.
    • isCaseSensitive

      public boolean isCaseSensitive()
      Whether this file system is case-sensitive.
      ??:
      Whether this file system is case-sensitive.
    • isLegalFileName

      public boolean isLegalFileName(CharSequence candidate)
      Checks if a candidate file name (without a path) such as "filename.ext" or "filename" is a potentially legal file name. If the file name length exceeds getMaxFileNameLength(), or if it contains an illegal character then the check fails.
      ??:
      candidate - a candidate file name (without a path) like "filename.ext" or "filename"
      ??:
      true if the candidate name is legal
    • isReservedFileName

      public boolean isReservedFileName(CharSequence candidate)
      Returns whether the given string is a reserved file name.
      ??:
      candidate - the string to test
      ??:
      true if the given string is a reserved file name.
    • supportsDriveLetter

      public boolean supportsDriveLetter()
      Tests whether this file system support driver letters.

      Windows supports driver letters as do other operating systems. Whether these other OS's still support Java like OS/2, is a different matter.

      ??:
      whether this file system support driver letters.
      ???????:
      2.9.0
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    • toLegalFileName

      public String toLegalFileName(String candidate, char replacement)
      Converts a candidate file name (without a path) like "filename.ext" or "filename" to a legal file name. Illegal characters in the candidate name are replaced by the replacement character. If the file name length exceeds getMaxFileNameLength(), then the name is truncated to getMaxFileNameLength().
      ??:
      candidate - a candidate file name (without a path) like "filename.ext" or "filename"
      replacement - Illegal characters in the candidate name are replaced by this character
      ??:
      a String without illegal characters