RandomAccessFileOrArray

java.lang.Object
- com.lowagie.text.pdf.RandomAccessFileOrArray

All Implemented Interfaces:

java.io.DataInput
```
public class RandomAccessFileOrArray
extends java.lang.Object
implements java.io.DataInput
```
An implementation of a RandomAccessFile for input only that accepts a file or a byte array as data source.

Author:

Paulo Soares (psoares@consiste.pt)

Field Summary

Fields
Modifier and Type	Field and Description
`(package private) byte[]`	`arrayIn`
`(package private) int`	`arrayInPtr`
`(package private) byte`	`back`
`(package private) java.lang.String`	`filename`
`(package private) boolean`	`isBack`
`(package private) boolean`	`plainRandomAccess`
`(package private) MappedRandomAccessFile`	`rf`
`private int`	`startOffset` Holds value of property startOffset.
`(package private) java.io.RandomAccessFile`	`trf`

Constructor Summary

Constructors
Constructor and Description
`RandomAccessFileOrArray(byte[] arrayIn)`
`RandomAccessFileOrArray(java.io.InputStream is)`
`RandomAccessFileOrArray(RandomAccessFileOrArray file)`
`RandomAccessFileOrArray(java.lang.String filename)`
`RandomAccessFileOrArray(java.lang.String filename, boolean forceRead, boolean plainRandomAccess)`
`RandomAccessFileOrArray(java.net.URL url)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`close()`
`int`	`getFilePointer()`
`java.nio.ByteBuffer`	`getNioByteBuffer()`
`int`	`getStartOffset()` Getter for property startOffset.
`static byte[]`	`InputStreamToArray(java.io.InputStream is)`
`protected void`	`insureOpen()`
`boolean`	`isOpen()`
`int`	`length()`
`void`	`pushBack(byte b)`
`int`	`read()`
`int`	`read(byte[] b)`
`int`	`read(byte[] b, int off, int len)`
`boolean`	`readBoolean()`
`byte`	`readByte()`
`char`	`readChar()`
`char`	`readCharLE()` Reads a Unicode character from this stream in little-endian order.
`double`	`readDouble()`
`double`	`readDoubleLE()`
`float`	`readFloat()`
`float`	`readFloatLE()`
`void`	`readFully(byte[] b)`
`void`	`readFully(byte[] b, int off, int len)`
`int`	`readInt()`
`int`	`readIntLE()` Reads a signed 32-bit integer from this stream in little-endian order.
`java.lang.String`	`readLine()`
`long`	`readLong()`
`long`	`readLongLE()`
`short`	`readShort()`
`short`	`readShortLE()` Reads a signed 16-bit number from this stream in little-endian order.
`int`	`readUnsignedByte()`
`long`	`readUnsignedInt()` Reads an unsigned 32-bit integer from this stream.
`long`	`readUnsignedIntLE()`
`int`	`readUnsignedShort()`
`int`	`readUnsignedShortLE()` Reads an unsigned 16-bit number from this stream in little-endian order.
`java.lang.String`	`readUTF()`
`void`	`reOpen()`
`void`	`seek(int pos)`
`void`	`seek(long pos)`
`void`	`setStartOffset(int startOffset)` Setter for property startOffset.
`long`	`skip(long n)`
`int`	`skipBytes(int n)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - rf
```
MappedRandomAccessFile rf
```
  - trf
```
java.io.RandomAccessFile trf
```
  - plainRandomAccess
```
boolean plainRandomAccess
```
  - filename
```
java.lang.String filename
```
  - arrayIn
```
byte[] arrayIn
```
  - arrayInPtr
```
int arrayInPtr
```
  - back
```
byte back
```
  - isBack
```
boolean isBack
```
  - startOffset
```
private int startOffset
```
    Holds value of property startOffset.
- Constructor Detail
  - RandomAccessFileOrArray
```
public RandomAccessFileOrArray(java.lang.String filename)
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - RandomAccessFileOrArray
```
public RandomAccessFileOrArray(java.lang.String filename,
                       boolean forceRead,
                       boolean plainRandomAccess)
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - RandomAccessFileOrArray
```
public RandomAccessFileOrArray(java.net.URL url)
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - RandomAccessFileOrArray
```
public RandomAccessFileOrArray(java.io.InputStream is)
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - RandomAccessFileOrArray
```
public RandomAccessFileOrArray(byte[] arrayIn)
```
  - RandomAccessFileOrArray
```
public RandomAccessFileOrArray(RandomAccessFileOrArray file)
```
- Method Detail
  - InputStreamToArray
```
public static byte[] InputStreamToArray(java.io.InputStream is)
                                 throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - pushBack
```
public void pushBack(byte b)
```
  - read
```
public int read()
         throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - read
```
public int read(byte[] b,
       int off,
       int len)
         throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - read
```
public int read(byte[] b)
         throws java.io.IOException
```
    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
  - skip
```
public long skip(long n)
          throws java.io.IOException
```
    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
  - reOpen
```
public void reOpen()
            throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - insureOpen
```
protected void insureOpen()
                   throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - isOpen
```
public boolean isOpen()
```
  - close
```
public void close()
           throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - length
```
public int length()
           throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - seek
```
public void seek(int pos)
          throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - seek
```
public void seek(long pos)
          throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - getFilePointer
```
public int getFilePointer()
                   throws java.io.IOException
```
    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
  - readShortLE
```
public final short readShortLE()
                        throws java.io.IOException
```
    Reads a signed 16-bit number from this stream in little-endian order. The method reads two bytes from this stream, starting at the current stream pointer. If the two bytes read, in order, are b1 and b2, where each of the two values is between 0 and 255, inclusive, then the result is equal to:
    (short)((b2 << 8) | b1)
    This method blocks until the two bytes are read, the end of the stream is detected, or an exception is thrown.
    Returns:
    the next two bytes of this stream, interpreted as a signed 16-bit number.
    
    Throws:
    
    java.io.EOFException - if this stream reaches the end before reading two bytes.
    
    java.io.IOException - if an I/O error occurs.
  - readUnsignedShort
```
public int readUnsignedShort()
                      throws java.io.IOException
```
    Specified by:
    
    readUnsignedShort in interface java.io.DataInput
    
    Throws:
    
    java.io.IOException
  - readUnsignedShortLE
```
public final int readUnsignedShortLE()
                              throws java.io.IOException
```
    Reads an unsigned 16-bit number from this stream in little-endian order. This method reads two bytes from the stream, starting at the current stream pointer. If the bytes read, in order, are b1 and b2, where 0 <= b1, b2 <= 255, then the result is equal to:
    (b2 << 8) | b1
    This method blocks until the two bytes are read, the end of the stream is detected, or an exception is thrown.
    Returns:
    the next two bytes of this stream, interpreted as an unsigned 16-bit integer.
    
    Throws:
    
    java.io.EOFException - if this stream reaches the end before reading two bytes.
    
    java.io.IOException - if an I/O error occurs.
  - readChar
```
public char readChar()
              throws java.io.IOException
```
    Specified by:
    
    readChar in interface java.io.DataInput
    
    Throws:
    
    java.io.IOException
  - readCharLE
```
public final char readCharLE()
                      throws java.io.IOException
```
    Reads a Unicode character from this stream in little-endian order. This method reads two bytes from the stream, starting at the current stream pointer. If the bytes read, in order, are b1 and b2, where 0 <= b1, b2 <= 255, then the result is equal to:
    (char)((b2 << 8) | b1)
    This method blocks until the two bytes are read, the end of the stream is detected, or an exception is thrown.
    Returns:
    the next two bytes of this stream as a Unicode character.
    
    Throws:
    
    java.io.EOFException - if this stream reaches the end before reading two bytes.
    
    java.io.IOException - if an I/O error occurs.
  - readInt
```
public int readInt()
            throws java.io.IOException
```
    Specified by:
    
    readInt in interface java.io.DataInput
    
    Throws:
    
    java.io.IOException
  - readIntLE
```
public final int readIntLE()
                    throws java.io.IOException
```
    Reads a signed 32-bit integer from this stream in little-endian order. This method reads 4 bytes from the stream, starting at the current stream pointer. If the bytes read, in order, are b1, b2, b3, and b4, where 0 <= b1, b2, b3, b4 <= 255, then the result is equal to:
    (b4 << 24) | (b3 << 16) + (b2 << 8) + b1
    This method blocks until the four bytes are read, the end of the stream is detected, or an exception is thrown.
    Returns:
    the next four bytes of this stream, interpreted as an int.
    
    Throws:
    
    java.io.EOFException - if this stream reaches the end before reading four bytes.
    
    java.io.IOException - if an I/O error occurs.
  - readUnsignedInt
```
public final long readUnsignedInt()
                           throws java.io.IOException
```
    Reads an unsigned 32-bit integer from this stream. This method reads 4 bytes from the stream, starting at the current stream pointer. If the bytes read, in order, are b1, b2, b3, and b4, where 0 <= b1, b2, b3, b4 <= 255, then the result is equal to:
    (b1 << 24) | (b2 << 16) + (b3 << 8) + b4
    This method blocks until the four bytes are read, the end of the stream is detected, or an exception is thrown.
    Returns:
    the next four bytes of this stream, interpreted as a long.
    
    Throws:
    
    java.io.EOFException - if this stream reaches the end before reading four bytes.
    
    java.io.IOException - if an I/O error occurs.
  - readUnsignedIntLE
```
public final long readUnsignedIntLE()
                             throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - readLong
```
public long readLong()
              throws java.io.IOException
```
    Specified by:
    
    readLong in interface java.io.DataInput
    
    Throws:
    
    java.io.IOException
  - readLongLE
```
public final long readLongLE()
                      throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - readFloat
```
public float readFloat()
                throws java.io.IOException
```
    Specified by:
    
    readFloat in interface java.io.DataInput
    
    Throws:
    
    java.io.IOException
  - readFloatLE
```
public final float readFloatLE()
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - readDouble
```
public double readDouble()
                  throws java.io.IOException
```
    Specified by:
    
    readDouble in interface java.io.DataInput
    
    Throws:
    
    java.io.IOException
  - readDoubleLE
```
public final double readDoubleLE()
                          throws java.io.IOException
```
    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
  - getStartOffset
```
public int getStartOffset()
```
    Getter for property startOffset.
    
    Returns:
    Value of property startOffset.
  - setStartOffset
```
public void setStartOffset(int startOffset)
```
    Setter for property startOffset.
    
    Parameters:
    startOffset - New value of property startOffset.
  - getNioByteBuffer
```
public java.nio.ByteBuffer getNioByteBuffer()
                                     throws java.io.IOException
```
    Throws:
    
    java.io.IOException
    Since:
    
    2.0.8

Class RandomAccessFileOrArray

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

rf

trf

plainRandomAccess

filename

arrayIn

arrayInPtr

back

isBack

startOffset

Constructor Detail

RandomAccessFileOrArray

RandomAccessFileOrArray

RandomAccessFileOrArray

RandomAccessFileOrArray

RandomAccessFileOrArray

RandomAccessFileOrArray

Method Detail

InputStreamToArray

pushBack

read

read

read

readFully

readFully

skip

skipBytes

reOpen

insureOpen

isOpen

close

length

seek

seek

getFilePointer

readBoolean

readByte

readUnsignedByte

readShort

readShortLE

readUnsignedShort

readUnsignedShortLE

readChar

readCharLE

readInt

readIntLE

readUnsignedInt

readUnsignedIntLE

readLong

readLongLE

readFloat

readFloatLE

readDouble

readDoubleLE

readLine

readUTF

getStartOffset

setStartOffset

getNioByteBuffer