Package org.jgroups.util

Class ExposedByteArrayOutputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable
    public class ExposedByteArrayOutputStream
extends java.io.ByteArrayOutputStream
    Extends ByteArrayOutputStream, but exposes the internal buffer. This way we don't need to call toByteArray() which copies the internal buffer
    Version:
    $Id: ExposedByteArrayOutputStream.java,v 1.2.14.4 2008/10/28 14:02:01 belaban Exp $
    Author:
    Bela Ban

    • Field Summary

      • Fields inherited from class java.io.ByteArrayOutputStream

        buf, count

    • Method Summary

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      int getCapacity()  
      byte[] getRawBuffer()  
      void reset()
      Resets the count field of this byte array output stream to zero, so that all currently accumulated output in the output stream is discarded.
      void reset​(int max_size)
      Resets count and creates a new buf if the current buf is > max_size.
      int size()
      Returns the current size of the buffer.
      byte[] toByteArray()
      Creates a newly allocated byte array.
      java.lang.String toString()
      Converts the buffer's contents into a string decoding bytes using the platform's default character set.
      java.lang.String toString​(int hibyte)
      Deprecated.
      This method does not properly convert bytes into characters.
      java.lang.String toString​(java.lang.String charsetName)
      Converts the buffer's contents into a string by decoding the bytes using the specified charsetName.
      void write​(byte[] b, int off, int len)
      Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
      void write​(int b)  
      void writeTo​(java.io.OutputStream out)
      Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).

      • Methods inherited from class java.io.ByteArrayOutputStream

        close, toString, writeBytes

      • Methods inherited from class java.io.OutputStream

        flush, nullOutputStream, write

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ExposedByteArrayOutputStream

        public ExposedByteArrayOutputStream()

      • ExposedByteArrayOutputStream

        public ExposedByteArrayOutputStream​(int size)

    • Method Detail

      • reset

        public void reset​(int max_size)
        Resets count and creates a new buf if the current buf is > max_size. This method is not synchronized

      • getRawBuffer

        public byte[] getRawBuffer()

      • getCapacity

        public int getCapacity()

      • write

        public void write​(int b)
        Overrides:
        write in class java.io.ByteArrayOutputStream

      • write

        public void write​(byte[] b,
                  int off,
                  int len)
        Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
        Overrides:
        write in class java.io.ByteArrayOutputStream
        Parameters:
        b - the data.
        off - the start offset in the data.
        len - the number of bytes to write.

      • writeTo

        public void writeTo​(java.io.OutputStream out)
             throws java.io.IOException
        Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).
        Overrides:
        writeTo in class java.io.ByteArrayOutputStream
        Parameters:
        out - the output stream to which to write the data.
        Throws:
        java.io.IOException - if an I/O error occurs.

      • reset

        public void reset()
        Resets the count field of this byte array output stream to zero, so that all currently accumulated output in the output stream is discarded. The output stream can be used again, reusing the already allocated buffer space.
        Overrides:
        reset in class java.io.ByteArrayOutputStream
        See Also:
        ByteArrayInputStream.count

      • toByteArray

        public byte[] toByteArray()
        Creates a newly allocated byte array. Its size is the current size of this output stream and the valid contents of the buffer have been copied into it.
        Overrides:
        toByteArray in class java.io.ByteArrayOutputStream
        Returns:
        the current contents of this output stream, as a byte array.
        See Also:
        ByteArrayOutputStream.size()

      • size

        public int size()
        Returns the current size of the buffer.
        Overrides:
        size in class java.io.ByteArrayOutputStream
        Returns:
        the value of the count field, which is the number of valid bytes in this output stream.
        See Also:
        ByteArrayOutputStream.count

      • toString

        public java.lang.String toString()
        Converts the buffer's contents into a string decoding bytes using the platform's default character set. The length of the new String is a function of the character set, and hence may not be equal to the size of the buffer.

        This method always replaces malformed-input and unmappable-character sequences with the default replacement string for the platform's default character set. The CharsetDecoder class should be used when more control over the decoding process is required.

        Overrides:
        toString in class java.io.ByteArrayOutputStream
        Returns:
        String decoded from the buffer's contents.
        Since:
        JDK1.1

      • toString

        public java.lang.String toString​(java.lang.String charsetName)
                          throws java.io.UnsupportedEncodingException
        Converts the buffer's contents into a string by decoding the bytes using the specified charsetName. The length of the new String is a function of the charset, and hence may not be equal to the length of the byte array.

        This method always replaces malformed-input and unmappable-character sequences with this charset's default replacement string. The CharsetDecoder class should be used when more control over the decoding process is required.

        Overrides:
        toString in class java.io.ByteArrayOutputStream
        Parameters:
        charsetName - the name of a supported charset
        Returns:
        String decoded from the buffer's contents.
        Throws:
        java.io.UnsupportedEncodingException - If the named charset is not supported
        Since:
        JDK1.1

      • toString

        @Deprecated
public java.lang.String toString​(int hibyte)
        Deprecated.
        This method does not properly convert bytes into characters. As of JDK 1.1, the preferred way to do this is via the toString(String enc) method, which takes an encoding-name argument, or the toString() method, which uses the platform's default character encoding.
        Creates a newly allocated string. Its size is the current size of the output stream and the valid contents of the buffer have been copied into it. Each character c in the resulting string is constructed from the corresponding element b in the byte array such that: 
             c == (char)(((hibyte & 0xff) << 8) | (b & 0xff))
        Overrides:
        toString in class java.io.ByteArrayOutputStream
        Parameters:
        hibyte - the high byte of each resulting Unicode character.
        Returns:
        the current contents of the output stream, as a string.
        See Also:
        ByteArrayOutputStream.size(), ByteArrayOutputStream.toString(String), ByteArrayOutputStream.toString()