VoidInputFilter (Apache Tomcat 6.0.53 API Documentation)
Keywords: org.apache.coyote.http11.filters.VoidInputFilter class

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## org.apache.coyote.http11.filters
Class VoidInputFilter

    java.lang.Object
      org.apache.coyote.http11.filters.VoidInputFilter

All Implemented Interfaces:
  InputFilter, InputBuffer

    public class VoidInputFilter

extends java.lang.Object
implements InputFilter

Void input filter, which returns -1 when attempting a read. Used with a GET, HEAD, or a similar request.

Author:
  Remy Maucherat

Field Summary
`protected static ByteChunk` | `ENCODING`
`protected static java.lang.String` | `ENCODING_NAME`

Constructor Summary
`VoidInputFilter()`

Method Summary
`int` | `available()` Amount of bytes still available in a buffer.
`int` | `doRead(ByteChunk chunk, Request req)` Write some bytes.
`long` | `end()` End the current request.
`ByteChunk` | `getEncodingName()` Return the name of the associated encoding; Here, the value is "void".
`void` | `recycle()` Make the filter ready to process the next request.
`void` | `setBuffer(InputBuffer buffer)` Set the next buffer in the filter pipeline.
`void` | `setRequest(Request request)` Set the associated reauest.

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

Field Detail

### ENCODING_NAME

    protected static final java.lang.String ENCODING_NAME

See Also:
  Constant Field Values

### ENCODING

    protected static final ByteChunk ENCODING

Constructor Detail

### VoidInputFilter

    public VoidInputFilter()

Method Detail

### doRead

    public int doRead(ByteChunk chunk,
                      Request req)
               throws java.io.IOException

  Write some bytes.

  Specified by:
    `doRead` in interface `InputFilter`
  Specified by:
    `doRead` in interface `InputBuffer`
  Returns:
    number of bytes written by the filter
  Throws:
    `java.io.IOException`

### setRequest

    public void setRequest(Request request)

  Set the associated reauest.

  Specified by:
    `setRequest` in interface `InputFilter`

### setBuffer

    public void setBuffer(InputBuffer buffer)

  Set the next buffer in the filter pipeline.

  Specified by:
    `setBuffer` in interface `InputFilter`

### recycle

    public void recycle()

  Make the filter ready to process the next request.

  Specified by:
    `recycle` in interface `InputFilter`

### getEncodingName

    public ByteChunk getEncodingName()

  Return the name of the associated encoding; Here, the value is "void".

  Specified by:
    `getEncodingName` in interface `InputFilter`

### end

    public long end()
             throws java.io.IOException

  End the current request. It is acceptable to write extra bytes using buffer.doWrite during the execution of this method.

  Specified by:
    `end` in interface `InputFilter`
  Returns:
    Should return 0 unless the filter does some content length delimitation, in which case the number is the amount of extra bytes or missing bytes, which would indicate an error. Note: It is recommended that extra bytes be swallowed by the filter.
  Throws:
    `java.io.IOException`

### available

    public int available()

  Amount of bytes still available in a buffer.

  Specified by:
    `available` in interface `InputFilter`

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