org.apache.commons.configuration2.io

## Class FileSystem

- java.lang.Object
- - org.apache.commons.configuration2.io.FileSystem

- Direct Known Subclasses:
    DefaultFileSystem

      public abstract class FileSystem
      extends Object

  Abstract layer to allow various types of file systems.
  Since:
    1.7
  Version:
    $Id: FileSystem.java 1624601 2014-09-12 18:04:36Z oheger $
  Author:
    Commons Configuration team

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `FileSystem()`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `abstract String` | `getBasePath(String path)`
    `abstract String` | `getFileName(String path)`
    `FileOptionsProvider` | `getFileOptionsProvider()`
    `abstract InputStream` | `getInputStream(URL url)`
    `org.apache.commons.logging.Log` | `getLogger()` Returns the logger used by this FileSystem.
    `abstract OutputStream` | `getOutputStream(File file)`
    `abstract OutputStream` | `getOutputStream(URL url)`
    `abstract String` | `getPath(File file, URL url, String basePath, String fileName)`
    `abstract URL` | `getURL(String basePath, String fileName)`
    `abstract URL` | `locateFromURL(String basePath, String fileName)`
    `void` | `setFileOptionsProvider(FileOptionsProvider provider)` Set the FileOptionsProvider
    `void` | `setLogger(org.apache.commons.logging.Log log)` Allows to set the logger to be used by this FileSystem.

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

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

- - ### Constructor Detail

    - #### FileSystem

          public FileSystem()

  - ### Method Detail

    - #### getLogger

          public org.apache.commons.logging.Log getLogger()

      Returns the logger used by this FileSystem.
      Returns:
        the logger

    - #### setLogger

          public void setLogger(org.apache.commons.logging.Log log)

      Allows to set the logger to be used by this FileSystem. This method makes it possible for clients to exactly control logging behavior. Per default a logger is set that will ignore all log messages. Derived classes that want to enable logging should call this method during their initialization with the logger to be used.
      Parameters:
        `log` - the new logger

    - #### setFileOptionsProvider

          public void setFileOptionsProvider(FileOptionsProvider provider)

      Set the FileOptionsProvider
      Parameters:
        `provider` - The FileOptionsProvider

    - #### getFileOptionsProvider

          public FileOptionsProvider getFileOptionsProvider()

    - #### getInputStream

          public abstract InputStream getInputStream(URL url)
                                              throws ConfigurationException

      Throws:
        `ConfigurationException`

    - #### getOutputStream

          public abstract OutputStream getOutputStream(URL url)
                                                throws ConfigurationException

      Throws:
        `ConfigurationException`

    - #### getOutputStream

          public abstract OutputStream getOutputStream(File file)
                                                throws ConfigurationException

      Throws:
        `ConfigurationException`

    - #### getPath

          public abstract String getPath(File file,
                                         URL url,
                                         String basePath,
                                         String fileName)

    - #### getBasePath

          public abstract String getBasePath(String path)

    - #### getFileName

          public abstract String getFileName(String path)

    - #### locateFromURL

          public abstract URL locateFromURL(String basePath,
                                            String fileName)

    - #### getURL

          public abstract URL getURL(String basePath,
                                     String fileName)
                              throws MalformedURLException

      Throws:
        `MalformedURLException`

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