j3d.org Code

org.j3d.io
Class BlockDataInputStream

java.lang.Object
  extended by java.io.InputStream
      extended by java.io.FilterInputStream
          extended by org.j3d.io.BlockDataInputStream
All Implemented Interfaces:
java.io.Closeable, java.io.DataInput

public class BlockDataInputStream
extends java.io.FilterInputStream
implements java.io.DataInput

A data input stream which allows reading of arrays of primative types as well as the standard types a DataInputStream allows.

This class is considerably faster then the standard DataInputStream provided by the standard JDK. This class is not thread safe. Do not call two methods at the same time.

Version:
$Revision: 1.1 $
Author:
Justin Couch

Field Summary
 
Fields inherited from class java.io.FilterInputStream
in
 
Constructor Summary
BlockDataInputStream(java.io.InputStream in)
          Creates a BlockDataInputStream that uses the specified underlying InputStream.
 
Method Summary
 int read(byte[] b)
           
 int read(byte[] b, int off, int len)
           
 boolean readBoolean()
           
 byte readByte()
           
 char readChar()
           
 double readDouble()
           
 float readFloat()
           
 void readFloats(float[] data, int len)
          Reads n floats into an array.
 void readFully(byte[] b)
           
 void readFully(byte[] b, int off, int len)
           
 int readInt()
           
 void readInts(int[] data, int len)
          Reads n ints into an array.
 java.lang.String readLine()
           
 long readLong()
           
 short readShort()
           
 int readUnsignedByte()
           
 int readUnsignedShort()
           
 java.lang.String readUTF()
           
static java.lang.String readUTF(java.io.DataInput in)
           
 int skipBytes(int n)
           
 
Methods inherited from class java.io.FilterInputStream
available, close, mark, markSupported, read, reset, skip
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BlockDataInputStream

public BlockDataInputStream(java.io.InputStream in)
Creates a BlockDataInputStream that uses the specified underlying InputStream.

Parameters:
in - the specified input stream
Method Detail

read

public int read(byte[] b)
         throws java.io.IOException
Overrides:
read in class java.io.FilterInputStream
Throws:
java.io.IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException
Overrides:
read in class java.io.FilterInputStream
Throws:
java.io.IOException

readFully

public void readFully(byte[] b)
               throws java.io.IOException
Specified by:
readFully in interface java.io.DataInput
Throws:
java.io.IOException

readFully

public void readFully(byte[] b,
                      int off,
                      int len)
               throws java.io.IOException
Specified by:
readFully in interface java.io.DataInput
Throws:
java.io.IOException

skipBytes

public int skipBytes(int n)
              throws java.io.IOException
Specified by:
skipBytes in interface java.io.DataInput
Throws:
java.io.IOException

readBoolean

public boolean readBoolean()
                    throws java.io.IOException
Specified by:
readBoolean in interface java.io.DataInput
Throws:
java.io.IOException

readByte

public byte readByte()
              throws java.io.IOException
Specified by:
readByte in interface java.io.DataInput
Throws:
java.io.IOException

readUnsignedByte

public int readUnsignedByte()
                     throws java.io.IOException
Specified by:
readUnsignedByte in interface java.io.DataInput
Throws:
java.io.IOException

readShort

public short readShort()
                throws java.io.IOException
Specified by:
readShort in interface java.io.DataInput
Throws:
java.io.IOException

readUnsignedShort

public int readUnsignedShort()
                      throws java.io.IOException
Specified by:
readUnsignedShort in interface java.io.DataInput
Throws:
java.io.IOException

readChar

public char readChar()
              throws java.io.IOException
Specified by:
readChar in interface java.io.DataInput
Throws:
java.io.IOException

readInt

public int readInt()
            throws java.io.IOException
Specified by:
readInt in interface java.io.DataInput
Throws:
java.io.IOException

readInts

public void readInts(int[] data,
                     int len)
              throws java.io.IOException
Reads n ints into an array. The array must be preallocated to at least n size.

Parameters:
data - The place to store the data
len - The number of floats to read.
Throws:
java.io.IOException

readLong

public long readLong()
              throws java.io.IOException
Specified by:
readLong in interface java.io.DataInput
Throws:
java.io.IOException

readFloat

public float readFloat()
                throws java.io.IOException
Specified by:
readFloat in interface java.io.DataInput
Throws:
java.io.IOException

readFloats

public void readFloats(float[] data,
                       int len)
                throws java.io.IOException
Reads n floats into an array. The array must be preallocated to at least n size.

Parameters:
data - The place to store the data
len - The number of floats to read.
Throws:
java.io.IOException

readDouble

public double readDouble()
                  throws java.io.IOException
Specified by:
readDouble in interface java.io.DataInput
Throws:
java.io.IOException

readLine

public java.lang.String readLine()
                          throws java.io.IOException
Specified by:
readLine in interface java.io.DataInput
Throws:
java.io.IOException

readUTF

public java.lang.String readUTF()
                         throws java.io.IOException
Specified by:
readUTF in interface java.io.DataInput
Throws:
java.io.IOException

readUTF

public static java.lang.String readUTF(java.io.DataInput in)
                                throws java.io.IOException
Throws:
java.io.IOException

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