org.apache.storm.container.cgroup

## Class CgroupUtils

- java.lang.Object
- - org.apache.storm.container.cgroup.CgroupUtils

-     public class CgroupUtils
      extends Object

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `CGROUP_STATUS_FILE`
    `static String` | `MOUNT_STATUS_FILE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `CgroupUtils()`

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `deleteDir(String dir)`
    `static boolean` | `enabled()`
    `static String` | `getDir(String dir, String constant)`
    `static Set<SubSystemType>` | `getSubSystemsFromString(String str)` Get a set of SubSystemType objects from a comma delimited list of subsystem names.
    `static List<String>` | `readFileByLine(String filePath)`
    `static String` | `subSystemsToString(Set<SubSystemType> subSystems)` Get a string that is a comma delimited list of subsystems.
    `static void` | `writeFileByLine(String filePath, List<String> linesToWrite)`
    `static void` | `writeFileByLine(String filePath, String lineToWrite)`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### CGROUP_STATUS_FILE

          public static final String CGROUP_STATUS_FILE

      See Also:
        Constant Field Values

    - #### MOUNT_STATUS_FILE

          public static final String MOUNT_STATUS_FILE

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### CgroupUtils

          public CgroupUtils()

  - ### Method Detail

    - #### deleteDir

          public static void deleteDir(String dir)

    - #### getSubSystemsFromString

          public static Set<SubSystemType> getSubSystemsFromString(String str)

      Get a set of SubSystemType objects from a comma delimited list of subsystem names.

    - #### subSystemsToString

          public static String subSystemsToString(Set<SubSystemType> subSystems)

      Get a string that is a comma delimited list of subsystems.

    - #### enabled

          public static boolean enabled()

    - #### readFileByLine

          public static List<String> readFileByLine(String filePath)
                                             throws IOException

      Throws:
        `IOException`

    - #### writeFileByLine

          public static void writeFileByLine(String filePath,
                                             List<String> linesToWrite)
                                      throws IOException

      Throws:
        `IOException`

    - #### writeFileByLine

          public static void writeFileByLine(String filePath,
                                             String lineToWrite)
                                      throws IOException

      Throws:
        `IOException`

    - #### getDir

          public static String getDir(String dir,
                                      String constant)

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