Package com.aowagie.text.pdf

Class RandomAccessFileOrArray

java.lang.Object
com.aowagie.text.pdf.RandomAccessFileOrArray
All Implemented Interfaces:
DataInput
public class RandomAccessFileOrArray extends Object implements DataInput
An implementation of a RandomAccessFile for input only that accepts a file or a byte array as data source.

  • Field Details

    • rf

      private MappedRandomAccessFile rf

    • trf

      private RandomAccessFile trf

    • plainRandomAccess

      private boolean plainRandomAccess

    • filename

      private String filename

    • arrayIn

      private byte[] arrayIn

    • arrayInPtr

      private int arrayInPtr

    • back

      private byte back

    • isBack

      private boolean isBack

    • startOffset

      private int startOffset
      Holds value of property startOffset.

  • Constructor Details

  • Method Details

    • InputStreamToArray

      private static byte[] InputStreamToArray(InputStream is) throws IOException
      Throws:
      IOException

    • pushBack

      void pushBack(byte b)

    • read

      public int read() throws IOException
      Throws:
      IOException

    • read

      public int read(byte[] b, int off, int len) throws IOException
      Throws:
      IOException

    • read

      public int read(byte[] b) throws IOException
      Throws:
      IOException

    • readFully

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

    • readFully

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

    • skip

      public long skip(long n) throws IOException
      Throws:
      IOException

    • skipBytes

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

    • reOpen

      public void reOpen() throws IOException
      Throws:
      IOException

    • insureOpen

      private void insureOpen() throws IOException
      Throws:
      IOException

    • isOpen

      public boolean isOpen()

    • close

      public void close() throws IOException
      Throws:
      IOException

    • length

      public int length() throws IOException
      Throws:
      IOException

    • seek

      public void seek(int pos) throws IOException
      Throws:
      IOException

    • seek

      public void seek(long pos) throws IOException
      Throws:
      IOException

    • getFilePointer

      public int getFilePointer() throws IOException
      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

    • readUnsignedByte

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

    • readShort

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

    • readShortLE

      public final short readShortLE() throws 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:
      EOFException - if this stream reaches the end before reading two bytes.
      IOException - if an I/O error occurs.

    • readUnsignedShort

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

    • readUnsignedShortLE

      public final int readUnsignedShortLE() throws 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:
      EOFException - if this stream reaches the end before reading two bytes.
      IOException - if an I/O error occurs.

    • readChar

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

    • readInt

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

    • readIntLE

      public final int readIntLE() throws 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:
      EOFException - if this stream reaches the end before reading four bytes.
      IOException - if an I/O error occurs.

    • readUnsignedInt

      public final long readUnsignedInt() throws 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:
      EOFException - if this stream reaches the end before reading four bytes.
      IOException - if an I/O error occurs.

    • readUnsignedIntLE

      public final long readUnsignedIntLE() throws IOException
      Throws:
      IOException

    • readLong

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

    • readLongLE

      public final long readLongLE() throws IOException
      Throws:
      IOException

    • readFloat

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

    • readFloatLE

      public final float readFloatLE() throws IOException
      Throws:
      IOException

    • readDouble

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

    • readDoubleLE

      public final double readDoubleLE() throws IOException
      Throws:
      IOException

    • readLine

      public String readLine() throws IOException
      Specified by:
      readLine in interface DataInput
      Throws:
      IOException

    • readUTF

      public String readUTF() throws IOException
      Specified by:
      readUTF in interface DataInput
      Throws:
      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 ByteBuffer getNioByteBuffer() throws IOException
      Returns:
      a buffer of nio bytes
      Throws:
      IOException - Exception with information about a IO error
      Since:
      2.0.8