hep.io.root.core

Class FastInputStream

java.lang.Object

hep.io.root.core.FastInputStream

All Implemented Interfaces:

RootInput, DataInput

public class FastInputStream
extends Object
implements RootInput

Constructor Summary

Constructors

Constructor and Description
FastInputStream(RootFileReader rfr, RandomAccessFile raf)

Method Summary

Modifier and Type	Method and Description
void	checkLength(AbstractRootObject obj)
void	clearMap()
void	close()
void	dump() For debugging
RootClassFactory	getFactory()
int	getLast()
long	getPosition()
int	getRootVersion() Returns the Root version which wrote this file
RootInput	getTop() Returns the RootInput at the top of top of the heirarchy of slices
int	readArray(byte[] data)
int	readArray(double[] data)
int	readArray(float[] data)
int	readArray(int[] data)
int	readArray(short[] data)
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
void	readFixedArray(byte[] data)
void	readFixedArray(double[] data)
void	readFixedArray(float[] data)
void	readFixedArray(int[] data)
void	readFixedArray(long[] data)
void	readFixedArray(short[] data)
float	readFloat()
void	readFully(byte[] values)
void	readFully(byte[] values, int param, int param2)
int	readInt()
String	readLine()
long	readLong()
void	readMultiArray(Object[] array)
String	readNullTerminatedString(int maxLength)
RootObject	readObject(String type)
RootObject	readObjectRef()
short	readShort()
String	readString()
double	readTwistedDouble() Reads a double in strange byte order?
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
boolean[]	readVarWidthArrayBoolean() reads an array of bools.
byte[]	readVarWidthArrayByte()
double[]	readVarWidthArrayDouble()
float[]	readVarWidthArrayFloat()
int[]	readVarWidthArrayInt()
short[]	readVarWidthArrayShort()
int	readVersion()
int	readVersion(AbstractRootObject obj)
void	setLast(int last)
void	setMap(int offset)
void	setPosition(long pos)
int	skipBytes(int param)
void	skipObject() For skipping uninterpretable objects
RootInput	slice(int size) Returns a new RootInput stream which represents a slice of this RootInput stream.
RootInput	slice(int inSize, int outSize) Slice and decompress

Methods inherited from class java.lang.Object

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

Constructor Detail

FastInputStream

public FastInputStream(RootFileReader rfr,
                       RandomAccessFile raf)
                throws IOException

Throws:

IOException

Method Detail

getFactory

public RootClassFactory getFactory()

Specified by:

getFactory in interface RootInput

Returns:

The RootClassFactory associated with this stream

setMap

public void setMap(int offset)

Specified by:

setMap in interface RootInput

setPosition

public void setPosition(long pos)
                 throws IOException

Specified by:

setPosition in interface RootInput

Throws:

IOException

getPosition

public long getPosition()
                 throws IOException

Specified by:

getPosition in interface RootInput

Throws:

IOException

getRootVersion

public int getRootVersion()

Description copied from interface: RootInput

Returns the Root version which wrote this file

Specified by:

getRootVersion in interface RootInput

getTop

public RootInput getTop()

Description copied from interface: RootInput

Returns the RootInput at the top of top of the heirarchy of slices

Specified by:

getTop in interface RootInput

checkLength

public void checkLength(AbstractRootObject obj)
                 throws IOException

Specified by:

checkLength in interface RootInput

Throws:

IOException

clearMap

public void clearMap()

Specified by:

clearMap in interface RootInput

dump

public void dump()

Description copied from interface: RootInput

For debugging

Specified by:

dump in interface RootInput

readVarWidthArrayInt

public int[] readVarWidthArrayInt()
                           throws IOException

Throws:

IOException

readVarWidthArrayByte

public byte[] readVarWidthArrayByte()
                             throws IOException

Throws:

IOException

readVarWidthArrayShort

public short[] readVarWidthArrayShort()
                               throws IOException

Throws:

IOException

readVarWidthArrayFloat

public float[] readVarWidthArrayFloat()
                               throws IOException

Throws:

IOException

readVarWidthArrayDouble

public double[] readVarWidthArrayDouble()
                                 throws IOException

Throws:

IOException

readVarWidthArrayBoolean

public boolean[] readVarWidthArrayBoolean()
                                   throws IOException

reads an array of bools. Read Bytes and inefficiently convert one by one

Returns:

array of booleans

Throws:

IOException

readArray

public int readArray(short[] data)
              throws IOException

Specified by:

readArray in interface RootInput

Throws:

IOException

readArray

public int readArray(byte[] data)
              throws IOException

Specified by:

readArray in interface RootInput

Throws:

IOException

readArray

public int readArray(double[] data)
              throws IOException

Specified by:

readArray in interface RootInput

Throws:

IOException

readArray

public int readArray(float[] data)
              throws IOException

Specified by:

readArray in interface RootInput

Throws:

IOException

readArray

public int readArray(int[] data)
              throws IOException

Specified by:

readArray in interface RootInput

Throws:

IOException

readBoolean

public boolean readBoolean()
                    throws IOException

Specified by:

readBoolean in interface DataInput

Throws:

IOException

readByte

public byte readByte()
              throws IOException

Specified by:

readByte in interface DataInput

Throws:

IOException

readChar

public char readChar()
              throws IOException

Specified by:

readChar in interface DataInput

Throws:

IOException

readDouble

public double readDouble()
                  throws IOException

Specified by:

readDouble in interface DataInput

Throws:

IOException

readTwistedDouble

public double readTwistedDouble()
                         throws IOException

Description copied from interface: RootInput

Reads a double in strange byte order?

Specified by:

readTwistedDouble in interface RootInput

Throws:

IOException

readFixedArray

public void readFixedArray(byte[] data)
                    throws IOException

Specified by:

readFixedArray in interface RootInput

Throws:

IOException

readFixedArray

public void readFixedArray(double[] data)
                    throws IOException

Specified by:

readFixedArray in interface RootInput

Throws:

IOException

readFixedArray

public void readFixedArray(int[] data)
                    throws IOException

Specified by:

readFixedArray in interface RootInput

Throws:

IOException

readFixedArray

public void readFixedArray(long[] data)
                    throws IOException

Specified by:

readFixedArray in interface RootInput

Throws:

IOException

readFixedArray

public void readFixedArray(float[] data)
                    throws IOException

Specified by:

readFixedArray in interface RootInput

Throws:

IOException

readFixedArray

public void readFixedArray(short[] data)
                    throws IOException

Specified by:

readFixedArray in interface RootInput

Throws:

IOException

readFloat

public float readFloat()
                throws IOException

Specified by:

readFloat in interface DataInput

Throws:

IOException

readFully

public void readFully(byte[] values)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

readFully

public void readFully(byte[] values,
                      int param,
                      int param2)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

readInt

public int readInt()
            throws IOException

Specified by:

readInt in interface DataInput

Throws:

IOException

readLine

public String readLine()
                throws IOException

Specified by:

readLine in interface DataInput

Throws:

IOException

readLong

public long readLong()
              throws IOException

Specified by:

readLong in interface DataInput

Throws:

IOException

readMultiArray

public void readMultiArray(Object[] array)
                    throws IOException

Specified by:

readMultiArray in interface RootInput

Throws:

IOException

readNullTerminatedString

public String readNullTerminatedString(int maxLength)
                                throws IOException

Specified by:

readNullTerminatedString in interface RootInput

Throws:

IOException

readObject

public RootObject readObject(String type)
                      throws IOException

Specified by:

readObject in interface RootInput

Throws:

IOException

readObjectRef

public RootObject readObjectRef()
                         throws IOException

Specified by:

readObjectRef in interface RootInput

Throws:

IOException

readShort

public short readShort()
                throws IOException

Specified by:

readShort in interface DataInput

Throws:

IOException

readString

public String readString()
                  throws IOException

Specified by:

readString in interface RootInput

Throws:

IOException

readUTF

public String readUTF()
               throws IOException

Specified by:

readUTF in interface DataInput

Throws:

IOException

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Specified by:

readUnsignedByte in interface DataInput

Throws:

IOException

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Specified by:

readUnsignedShort in interface DataInput

Throws:

IOException

readVersion

public int readVersion()
                throws IOException

Specified by:

readVersion in interface RootInput

Throws:

IOException

readVersion

public int readVersion(AbstractRootObject obj)
                throws IOException

Specified by:

readVersion in interface RootInput

Throws:

IOException

skipObject

public void skipObject()
                throws IOException

Description copied from interface: RootInput

For skipping uninterpretable objects

Specified by:

skipObject in interface RootInput

Throws:

IOException

skipBytes

public int skipBytes(int param)
              throws IOException

Specified by:

skipBytes in interface DataInput

Throws:

IOException

slice

public RootInput slice(int size)
                throws IOException

Description copied from interface: RootInput

Returns a new RootInput stream which represents a slice of this RootInput stream. The new RootInput maintains its own file position independent of the parent stream. The slice starts from the current file position and extends for size bytes.

Specified by:

slice in interface RootInput

Parameters:

size - The size of the slice.

Returns:

The slice

Throws:

IOException

slice

public RootInput slice(int inSize,
                       int outSize)
                throws IOException

Description copied from interface: RootInput

Slice and decompress

Specified by:

slice in interface RootInput

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface RootInput

Throws:

IOException

getLast

public int getLast()

Specified by:

getLast in interface RootInput

setLast

public void setLast(int last)

Specified by:

setLast in interface RootInput