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## org.eclipse.jetty.util
Class RolloverFileOutputStream

    java.lang.Object
      java.io.OutputStream
          java.io.FilterOutputStream
              org.eclipse.jetty.util.RolloverFileOutputStream

All Implemented Interfaces:
  java.io.Closeable, java.io.Flushable

    public class RolloverFileOutputStream

extends java.io.FilterOutputStream

RolloverFileOutputStream This output stream puts content in a file that is rolled over every 24 hours. The filename must include the string "yyyy_mm_dd", which is replaced with the actual date when creating and rolling over the file. Old files are retained for a number of days before being deleted.

Field Summary

Fields inherited from class java.io.FilterOutputStream
`out`

Constructor Summary
`RolloverFileOutputStream(java.lang.String filename)`
`RolloverFileOutputStream(java.lang.String filename, boolean append)`
`RolloverFileOutputStream(java.lang.String filename, boolean append, int retainDays)`
`RolloverFileOutputStream(java.lang.String filename, boolean append, int retainDays, java.util.TimeZone zone)`
`RolloverFileOutputStream(java.lang.String filename, boolean append, int retainDays, java.util.TimeZone zone, java.lang.String dateFormat, java.lang.String backupFormat)`

Method Summary
`void` | `close()`
`java.lang.String` | `getDatedFilename()`
`java.lang.String` | `getFilename()`
`int` | `getRetainDays()`
`void` | `write(byte[] buf)`
`void` | `write(byte[] buf, int off, int len)`

Methods inherited from class java.io.FilterOutputStream
`flush, write`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### RolloverFileOutputStream

    public RolloverFileOutputStream(java.lang.String filename)
                             throws java.io.IOException

Parameters:
  `filename` - The filename must include the string "yyyy_mm_dd", which is replaced with the actual date when creating and rolling over the file.
Throws:
  `java.io.IOException`

### RolloverFileOutputStream

    public RolloverFileOutputStream(java.lang.String filename,
                                    boolean append)
                             throws java.io.IOException

Parameters:
  `filename` - The filename must include the string "yyyy_mm_dd", which is replaced with the actual date when creating and rolling over the file.
  `append` - If true, existing files will be appended to.
Throws:
  `java.io.IOException`

### RolloverFileOutputStream

    public RolloverFileOutputStream(java.lang.String filename,
                                    boolean append,
                                    int retainDays)
                             throws java.io.IOException

Parameters:
  `filename` - The filename must include the string "yyyy_mm_dd", which is replaced with the actual date when creating and rolling over the file.
  `append` - If true, existing files will be appended to.
  `retainDays` - The number of days to retain files before deleting them. 0 to retain forever.
Throws:
  `java.io.IOException`

### RolloverFileOutputStream

    public RolloverFileOutputStream(java.lang.String filename,
                                    boolean append,
                                    int retainDays,
                                    java.util.TimeZone zone)
                             throws java.io.IOException

Parameters:
  `filename` - The filename must include the string "yyyy_mm_dd", which is replaced with the actual date when creating and rolling over the file.
  `append` - If true, existing files will be appended to.
  `retainDays` - The number of days to retain files before deleting them. 0 to retain forever.
Throws:
  `java.io.IOException`

### RolloverFileOutputStream

    public RolloverFileOutputStream(java.lang.String filename,
                                    boolean append,
                                    int retainDays,
                                    java.util.TimeZone zone,
                                    java.lang.String dateFormat,
                                    java.lang.String backupFormat)
                             throws java.io.IOException

Parameters:
  `filename` - The filename must include the string "yyyy_mm_dd", which is replaced with the actual date when creating and rolling over the file.
  `append` - If true, existing files will be appended to.
  `retainDays` - The number of days to retain files before deleting them. 0 to retain forever.
  `dateFormat` - The format for the date file substitution. The default is "yyyy_MM_dd".
  `backupFormat` - The format for the file extension of backup files. The default is "HHmmssSSS".
Throws:
  `java.io.IOException`

Method Detail

### getFilename

    public java.lang.String getFilename()

### getDatedFilename

    public java.lang.String getDatedFilename()

### getRetainDays

    public int getRetainDays()

### write

    public void write(byte[] buf)
               throws java.io.IOException

  Overrides:
    `write` in class `java.io.FilterOutputStream`
  Throws:
    `java.io.IOException`

### write

    public void write(byte[] buf,
                      int off,
                      int len)
               throws java.io.IOException

  Overrides:
    `write` in class `java.io.FilterOutputStream`
  Throws:
    `java.io.IOException`

### close

    public void close()
               throws java.io.IOException

  Specified by:
    `close` in interface `java.io.Closeable`
  Overrides:
    `close` in class `java.io.FilterOutputStream`
  Throws:
    `java.io.IOException`

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