Package org.bouncycastle.bcpg

## Class BCPGOutputStream

- java.lang.Object
- - java.io.OutputStream
  - - org.bouncycastle.bcpg.BCPGOutputStream

- All Implemented Interfaces:
    `java.io.Closeable`, `java.io.Flushable`, `java.lang.AutoCloseable`, `CompressionAlgorithmTags`, `PacketTags`

      public class BCPGOutputStream
      extends java.io.OutputStream
      implements PacketTags, CompressionAlgorithmTags

  Basic output stream.

- - ### Field Summary

    - ### Fields inherited from interface org.bouncycastle.bcpg.CompressionAlgorithmTags

      `BZIP2, UNCOMPRESSED, ZIP, ZLIB`

    - ### Fields inherited from interface org.bouncycastle.bcpg.PacketTags

      `COMPRESSED_DATA, EXPERIMENTAL_1, EXPERIMENTAL_2, EXPERIMENTAL_3, EXPERIMENTAL_4, LITERAL_DATA, MARKER, MOD_DETECTION_CODE, ONE_PASS_SIGNATURE, PUBLIC_KEY, PUBLIC_KEY_ENC_SESSION, PUBLIC_SUBKEY, RESERVED, SECRET_KEY, SECRET_SUBKEY, SIGNATURE, SYM_ENC_INTEGRITY_PRO, SYMMETRIC_KEY_ENC, SYMMETRIC_KEY_ENC_SESSION, TRUST, USER_ATTRIBUTE, USER_ID`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `BCPGOutputStream​(java.io.OutputStream out)` |
    `BCPGOutputStream​(java.io.OutputStream out, int tag)` | Create a stream representing an old style partial object.
    `BCPGOutputStream​(java.io.OutputStream out, int tag, byte[] buffer)` | Create a new style partial input stream buffered into chunks.
    `BCPGOutputStream​(java.io.OutputStream out, int tag, long length)` |
    `BCPGOutputStream​(java.io.OutputStream out, int tag, long length, boolean oldFormat)` | Create a stream representing a general packet.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `close()` |
    `void` | `finish()` | Finish writing out the current packet without closing the underlying stream.
    `void` | `flush()` | Flush the underlying stream.
    `void` | `write​(byte[] bytes, int off, int len)` |
    `void` | `write​(int b)` |
    `void` | `writeObject​(BCPGObject o)` |
    `void` | `writePacket​(ContainedPacket p)` |

    - ### Methods inherited from class java.io.OutputStream

      `nullOutputStream, write`

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

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

- - ### Constructor Detail

    - #### BCPGOutputStream

          public BCPGOutputStream​(java.io.OutputStream out)

    - #### BCPGOutputStream

          public BCPGOutputStream​(java.io.OutputStream out,
                                  int tag)
                           throws java.io.IOException

      Create a stream representing an old style partial object.
      Parameters:
        `tag` - the packet tag for the object.
      Throws:
        `java.io.IOException`

    - #### BCPGOutputStream

          public BCPGOutputStream​(java.io.OutputStream out,
                                  int tag,
                                  long length,
                                  boolean oldFormat)
                           throws java.io.IOException

      Create a stream representing a general packet.
      Parameters:
        `out` -
        `tag` -
        `length` -
        `oldFormat` -
      Throws:
        `java.io.IOException`

    - #### BCPGOutputStream

          public BCPGOutputStream​(java.io.OutputStream out,
                                  int tag,
                                  long length)
                           throws java.io.IOException

      Parameters:
        `tag` -
        `length` -
      Throws:
        `java.io.IOException`

    - #### BCPGOutputStream

          public BCPGOutputStream​(java.io.OutputStream out,
                                  int tag,
                                  byte[] buffer)
                           throws java.io.IOException

      Create a new style partial input stream buffered into chunks.
      Parameters:
        `out` - output stream to write to.
        `tag` - packet tag.
        `buffer` - size of chunks making up the packet.
      Throws:
        `java.io.IOException`

  - ### Method Detail

    - #### write

          public void write​(int b)
                     throws java.io.IOException

      Specified by:
        `write` in class `java.io.OutputStream`
      Throws:
        `java.io.IOException`

    - #### write

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

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

    - #### writePacket

          public void writePacket​(ContainedPacket p)
                           throws java.io.IOException

      Throws:
        `java.io.IOException`

    - #### writeObject

          public void writeObject​(BCPGObject o)
                           throws java.io.IOException

      Throws:
        `java.io.IOException`

    - #### flush

          public void flush()
                     throws java.io.IOException

      Flush the underlying stream.
      Specified by:
        `flush` in interface `java.io.Flushable`
      Overrides:
        `flush` in class `java.io.OutputStream`
      Throws:
        `java.io.IOException`

    - #### finish

          public void finish()
                      throws java.io.IOException

      Finish writing out the current packet without closing the underlying stream.
      Throws:
        `java.io.IOException`

    - #### close

          public void close()
                     throws java.io.IOException

      Specified by:
        `close` in interface `java.lang.AutoCloseable`
      Specified by:
        `close` in interface `java.io.Closeable`
      Overrides:
        `close` in class `java.io.OutputStream`
      Throws:
        `java.io.IOException`