org.apache.accumulo.start.classloader.vfs.providers

Class HdfsRandomAccessContent

java.lang.Object

org.apache.accumulo.start.classloader.vfs.providers.HdfsRandomAccessContent

All Implemented Interfaces:

DataInput, DataOutput, org.apache.commons.vfs2.RandomAccessContent

public class HdfsRandomAccessContent
extends Object
implements org.apache.commons.vfs2.RandomAccessContent

Provides random access to content in an HdfsFileObject. Currently this only supports read operations. All write operations throw an UnsupportedOperationException.

Since:

2.1

Constructor Summary

Constructors

Constructor and Description
HdfsRandomAccessContent(org.apache.hadoop.fs.Path path, org.apache.hadoop.fs.FileSystem fs)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
long	getFilePointer()
InputStream	getInputStream()
long	length()
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
int	readInt()
String	readLine()
long	readLong()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
String	readUTF()
void	seek(long pos)
int	skipBytes(int n)
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)
void	writeBoolean(boolean v)
void	writeByte(int v)
void	writeBytes(String s)
void	writeChar(int v)
void	writeChars(String s)
void	writeDouble(double v)
void	writeFloat(float v)
void	writeInt(int v)
void	writeLong(long v)
void	writeShort(int v)
void	writeUTF(String s)

Methods inherited from class java.lang.Object

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

Constructor Detail

HdfsRandomAccessContent

public HdfsRandomAccessContent(org.apache.hadoop.fs.Path path,
                       org.apache.hadoop.fs.FileSystem fs)
                        throws IOException

Parameters:

path - A Hadoop Path

fs - A Hadoop FileSystem

Throws:

IOException - when the path cannot be processed.

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface org.apache.commons.vfs2.RandomAccessContent

Throws:

IOException

See Also:

RandomAccessContent.close()

getFilePointer

public long getFilePointer()
                    throws IOException

Specified by:

getFilePointer in interface org.apache.commons.vfs2.RandomAccessContent

Throws:

IOException

See Also:

RandomAccessContent.getFilePointer()

getInputStream

public InputStream getInputStream()
                           throws IOException

Specified by:

getInputStream in interface org.apache.commons.vfs2.RandomAccessContent

Throws:

IOException

See Also:

RandomAccessContent.getInputStream()

length

public long length()
            throws IOException

Specified by:

length in interface org.apache.commons.vfs2.RandomAccessContent

Throws:

IOException

See Also:

RandomAccessContent.length()

readBoolean

public boolean readBoolean()
                    throws IOException

Specified by:

readBoolean in interface DataInput

Throws:

IOException

See Also:

DataInput.readBoolean()

readByte

public byte readByte()
              throws IOException

Specified by:

readByte in interface DataInput

Throws:

IOException

See Also:

DataInput.readByte()

readChar

public char readChar()
              throws IOException

Specified by:

readChar in interface DataInput

Throws:

IOException

See Also:

DataInput.readChar()

readDouble

public double readDouble()
                  throws IOException

Specified by:

readDouble in interface DataInput

Throws:

IOException

See Also:

DataInput.readDouble()

readFloat

public float readFloat()
                throws IOException

Specified by:

readFloat in interface DataInput

Throws:

IOException

See Also:

DataInput.readFloat()

readFully

public void readFully(byte[] b)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

See Also:

DataInput.readFully(byte[])

readFully

public void readFully(byte[] b,
             int off,
             int len)
               throws IOException

Specified by:

readFully in interface DataInput

Throws:

IOException

See Also:

DataInput.readFully(byte[], int, int)

readInt

public int readInt()
            throws IOException

Specified by:

readInt in interface DataInput

Throws:

IOException

See Also:

DataInput.readInt()

readLine

public String readLine()
                throws IOException

Specified by:

readLine in interface DataInput

Throws:

IOException

See Also:

DataInput.readLine()

readLong

public long readLong()
              throws IOException

Specified by:

readLong in interface DataInput

Throws:

IOException

See Also:

DataInput.readLong()

readShort

public short readShort()
                throws IOException

Specified by:

readShort in interface DataInput

Throws:

IOException

See Also:

DataInput.readShort()

readUnsignedByte

public int readUnsignedByte()
                     throws IOException

Specified by:

readUnsignedByte in interface DataInput

Throws:

IOException

See Also:

DataInput.readUnsignedByte()

readUnsignedShort

public int readUnsignedShort()
                      throws IOException

Specified by:

readUnsignedShort in interface DataInput

Throws:

IOException

See Also:

DataInput.readUnsignedShort()

readUTF

public String readUTF()
               throws IOException

Specified by:

readUTF in interface DataInput

Throws:

IOException

See Also:

DataInput.readUTF()

seek

public void seek(long pos)
          throws IOException

Specified by:

seek in interface org.apache.commons.vfs2.RandomAccessContent

Throws:

IOException

See Also:

RandomAccessContent.seek(long)

skipBytes

public int skipBytes(int n)
              throws IOException

Specified by:

skipBytes in interface DataInput

Throws:

IOException

See Also:

DataInput.skipBytes(int)

write

public void write(byte[] b)
           throws IOException

Specified by:

write in interface DataOutput

Throws:

IOException

See Also:

DataOutput.write(byte[])

write

public void write(byte[] b,
         int off,
         int len)
           throws IOException

Specified by:

write in interface DataOutput

Throws:

IOException

See Also:

DataOutput.write(byte[], int, int)

write

public void write(int b)
           throws IOException

Specified by:

write in interface DataOutput

Throws:

IOException

See Also:

DataOutput.write(int)

writeBoolean

public void writeBoolean(boolean v)
                  throws IOException

Specified by:

writeBoolean in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeBoolean(boolean)

writeByte

public void writeByte(int v)
               throws IOException

Specified by:

writeByte in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeByte(int)

writeBytes

public void writeBytes(String s)
                throws IOException

Specified by:

writeBytes in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeBytes(java.lang.String)

writeChar

public void writeChar(int v)
               throws IOException

Specified by:

writeChar in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeChar(int)

writeChars

public void writeChars(String s)
                throws IOException

Specified by:

writeChars in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeChars(java.lang.String)

writeDouble

public void writeDouble(double v)
                 throws IOException

Specified by:

writeDouble in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeDouble(double)

writeFloat

public void writeFloat(float v)
                throws IOException

Specified by:

writeFloat in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeFloat(float)

writeInt

public void writeInt(int v)
              throws IOException

Specified by:

writeInt in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeInt(int)

writeLong

public void writeLong(long v)
               throws IOException

Specified by:

writeLong in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeLong(long)

writeShort

public void writeShort(int v)
                throws IOException

Specified by:

writeShort in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeShort(int)

writeUTF

public void writeUTF(String s)
              throws IOException

Specified by:

writeUTF in interface DataOutput

Throws:

IOException

See Also:

DataOutput.writeUTF(java.lang.String)