org.apache.synapse.transport.nhttp

## Class NhttpSharedOutputBuffer

- java.lang.Object
- - org.apache.http.nio.util.ExpandableBuffer
  - - org.apache.synapse.transport.nhttp.NhttpSharedOutputBuffer

- All Implemented Interfaces:
    org.apache.http.nio.util.BufferInfo, org.apache.http.nio.util.ContentOutputBuffer

      @ThreadSafe
      public class NhttpSharedOutputBuffer
      extends org.apache.http.nio.util.ExpandableBuffer
      implements org.apache.http.nio.util.ContentOutputBuffer

  Implementation of the `ContentOutputBuffer` interface that can be shared by multiple threads, usually the I/O dispatch of an I/O reactor and a worker thread.

  The I/O dispatch thread is expected to transfer data from the buffer to `ContentEncoder` by calling `produceContent(ContentEncoder)`.

  The worker thread is expected to write data to the buffer by calling `write(int)`, `write(byte[], int, int)` or `writeCompleted()`

  In case of an abnormal situation or when no longer needed the buffer must be shut down using `shutdown()` method. Please note that `SharedOutputBuffer` class was copied here renamed as NhttpSharedOutputBuffer from httpcore-nio in order to fix https://github.com/wso2/product-ei/issues/1367, without having to do an API change in httpcore-nio component.

- - ### Field Summary

    - ### Fields inherited from class org.apache.http.nio.util.ExpandableBuffer

      `buffer, INPUT_MODE, OUTPUT_MODE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `NhttpSharedOutputBuffer(int buffersize)`
    `NhttpSharedOutputBuffer(int buffersize, org.apache.http.nio.util.ByteBufferAllocator allocator)`
    `NhttpSharedOutputBuffer(int buffersize, org.apache.http.nio.IOControl ioctrl, org.apache.http.nio.util.ByteBufferAllocator allocator)` Deprecated.
    `NhttpSharedOutputBuffer(int buffersize, org.apache.http.nio.IOControl ioctrl, org.apache.http.nio.util.ByteBufferAllocator allocator, int timeout)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `int` | `available()`
    `int` | `capacity()`
    `void` | `close()`
    `void` | `flush()`
    `boolean` | `hasData()`
    `int` | `length()`
    `int` | `produceContent(org.apache.http.nio.ContentEncoder encoder)` Deprecated.
    `int` | `produceContent(org.apache.http.nio.ContentEncoder encoder, org.apache.http.nio.IOControl ioctrl)`
    `void` | `reset()`
    `void` | `shutdown()`
    `void` | `write(byte[] b)`
    `void` | `write(byte[] b, int off, int len)`
    `void` | `write(int b)`
    `void` | `writeCompleted()`

    - ### Methods inherited from class org.apache.http.nio.util.ExpandableBuffer

      `clear, ensureCapacity, expand, getMode, setInputMode, setOutputMode, toString`

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

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

- - ### Constructor Detail

    - #### NhttpSharedOutputBuffer

          public NhttpSharedOutputBuffer(int buffersize,
                                         org.apache.http.nio.IOControl ioctrl,
                                         org.apache.http.nio.util.ByteBufferAllocator allocator,
                                         int timeout)

    - #### NhttpSharedOutputBuffer

          @Deprecated
          public NhttpSharedOutputBuffer(int buffersize,
                                                     org.apache.http.nio.IOControl ioctrl,
                                                     org.apache.http.nio.util.ByteBufferAllocator allocator)

      Deprecated.

    - #### NhttpSharedOutputBuffer

          public NhttpSharedOutputBuffer(int buffersize,
                                         org.apache.http.nio.util.ByteBufferAllocator allocator)

    - #### NhttpSharedOutputBuffer

          public NhttpSharedOutputBuffer(int buffersize)

  - ### Method Detail

    - #### reset

          public void reset()

      Specified by:
        `reset` in interface `org.apache.http.nio.util.ContentOutputBuffer`

    - #### hasData

          public boolean hasData()

      Overrides:
        `hasData` in class `org.apache.http.nio.util.ExpandableBuffer`

    - #### available

          public int available()

      Specified by:
        `available` in interface `org.apache.http.nio.util.BufferInfo`
      Overrides:
        `available` in class `org.apache.http.nio.util.ExpandableBuffer`

    - #### capacity

          public int capacity()

      Specified by:
        `capacity` in interface `org.apache.http.nio.util.BufferInfo`
      Overrides:
        `capacity` in class `org.apache.http.nio.util.ExpandableBuffer`

    - #### length

          public int length()

      Specified by:
        `length` in interface `org.apache.http.nio.util.BufferInfo`
      Overrides:
        `length` in class `org.apache.http.nio.util.ExpandableBuffer`

    - #### produceContent

          @Deprecated
          public int produceContent(org.apache.http.nio.ContentEncoder encoder)
                                         throws IOException

      Deprecated.
      Specified by:
        `produceContent` in interface `org.apache.http.nio.util.ContentOutputBuffer`
      Throws:
        `IOException`

    - #### produceContent

          public int produceContent(org.apache.http.nio.ContentEncoder encoder,
                                    org.apache.http.nio.IOControl ioctrl)
                             throws IOException

      Throws:
        `IOException`

    - #### close

          public void close()

    - #### shutdown

          public void shutdown()

    - #### write

          public void write(byte[] b,
                            int off,
                            int len)
                     throws IOException

      Specified by:
        `write` in interface `org.apache.http.nio.util.ContentOutputBuffer`
      Throws:
        `IOException`

    - #### write

          public void write(byte[] b)
                     throws IOException

      Throws:
        `IOException`

    - #### write

          public void write(int b)
                     throws IOException

      Specified by:
        `write` in interface `org.apache.http.nio.util.ContentOutputBuffer`
      Throws:
        `IOException`

    - #### flush

          public void flush()
                     throws IOException

      Specified by:
        `flush` in interface `org.apache.http.nio.util.ContentOutputBuffer`
      Throws:
        `IOException`

    - #### writeCompleted

          public void writeCompleted()
                              throws IOException

      Specified by:
        `writeCompleted` in interface `org.apache.http.nio.util.ContentOutputBuffer`
      Throws:
        `IOException`

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