Package org.apache.coyote.http11.filters

Class GzipOutputFilter

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected HttpOutputBuffer buffer
      Next buffer in the pipeline.
      protected java.util.zip.GZIPOutputStream compressionStream
      Compression output stream.
      protected java.io.OutputStream fakeOutputStream
      Fake internal output stream.
      protected static Log log  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int doWrite​(java.nio.ByteBuffer chunk)
      Write the given data to the response.
      void end()
      Finish writing the current response.
      void flush()
      Added to allow flushing to happen for the gzip'ed outputstream
      long getBytesWritten()
      Bytes written to the underlying socket.
      void recycle()
      Make the filter ready to process the next request.
      void setBuffer​(HttpOutputBuffer buffer)
      Set the next buffer in the filter pipeline.
      void setResponse​(Response response)
      Some filters need additional parameters from the response.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • log

        protected static final Log log

      • compressionStream

        protected java.util.zip.GZIPOutputStream compressionStream
        Compression output stream.

      • fakeOutputStream

        protected final java.io.OutputStream fakeOutputStream
        Fake internal output stream.

    • Constructor Detail

      • GzipOutputFilter

        public GzipOutputFilter()

    • Method Detail

      • doWrite

        public int doWrite​(java.nio.ByteBuffer chunk)
            throws java.io.IOException
        Description copied from interface: OutputBuffer
        Write the given data to the response. The caller owns the chunks.
        Specified by:
        doWrite in interface OutputBuffer
        Parameters:
        chunk - data to write
        Returns:
        The number of bytes written which may be less than available in the input chunk
        Throws:
        java.io.IOException - an underlying I/O error occurred

      • getBytesWritten

        public long getBytesWritten()
        Description copied from interface: OutputBuffer
        Bytes written to the underlying socket. This includes the effects of chunking, compression, etc.
        Specified by:
        getBytesWritten in interface OutputBuffer
        Returns:
        Bytes written for the current request

      • flush

        public void flush()
           throws java.io.IOException
        Added to allow flushing to happen for the gzip'ed outputstream
        Specified by:
        flush in interface HttpOutputBuffer
        Throws:
        java.io.IOException - If an I/O error occurs while flushing

      • setResponse

        public void setResponse​(Response response)
        Description copied from interface: OutputFilter
        Some filters need additional parameters from the response. All the necessary reading can occur in that method, as this method is called after the response header processing is complete.
        Specified by:
        setResponse in interface OutputFilter
        Parameters:
        response - The response to associate with this OutputFilter

      • setBuffer

        public void setBuffer​(HttpOutputBuffer buffer)
        Description copied from interface: OutputFilter
        Set the next buffer in the filter pipeline.
        Specified by:
        setBuffer in interface OutputFilter
        Parameters:
        buffer - The next buffer instance

      • end

        public void end()
         throws java.io.IOException
        Description copied from interface: HttpOutputBuffer
        Finish writing the current response. It is acceptable to write extra bytes using OutputBuffer.doWrite(java.nio.ByteBuffer) during the execution of this method.
        Specified by:
        end in interface HttpOutputBuffer
        Throws:
        java.io.IOException - If an I/O error occurs while writing to the client

      • recycle

        public void recycle()
        Make the filter ready to process the next request.
        Specified by:
        recycle in interface OutputFilter