Package org.apache.hugegraph.computer.core.io

Class AbstractBufferedFileInput

java.lang.Object

org.apache.hugegraph.computer.core.io.UnsafeBytesInput

org.apache.hugegraph.computer.core.io.AbstractBufferedFileInput

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.lang.AutoCloseable, org.apache.hugegraph.computer.core.io.BytesInput, org.apache.hugegraph.computer.core.io.RandomAccessInput

Direct Known Subclasses:

BufferedFileInput, ValueFileInput

public abstract class AbstractBufferedFileInput
extends UnsafeBytesInput

Field Summary

Fields

Modifier and Type	Field	Description
protected long	fileOffset

Constructor Summary

Constructors

Constructor	Description
AbstractBufferedFileInput(int bufferCapacity, long fileLength)

Method Summary

Modifier and Type	Method	Description
long	available()
protected int	bufferCapacity()
int	compare(long offset, long length, org.apache.hugegraph.computer.core.io.RandomAccessInput other, long otherOffset, long otherLength)
protected long	fileLength()
protected abstract void	fillBuffer()
long	position()
void	readFully(byte[] b)
protected void	require(int size)
protected void	shiftAndFillBuffer()
long	skip(long bytesToSkip)

Methods inherited from class org.apache.hugegraph.computer.core.io.UnsafeBytesInput

buffer, close, duplicate, limit, limit, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, remaining, seek, shiftBuffer, skipBytes

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hugegraph.computer.core.io.RandomAccessInput

readBytes, readFixedInt

Field Detail

fileOffset

protected long fileOffset

Constructor Detail

AbstractBufferedFileInput

public AbstractBufferedFileInput(int bufferCapacity,
                                 long fileLength)

Method Detail

position

public long position()

Specified by:

position in interface org.apache.hugegraph.computer.core.io.RandomAccessInput

Overrides:

position in class UnsafeBytesInput

readFully

public void readFully(byte[] b)
               throws java.io.IOException

Specified by:

readFully in interface java.io.DataInput

Overrides:

readFully in class UnsafeBytesInput

Throws:

java.io.IOException

skip

public long skip(long bytesToSkip)
          throws java.io.IOException

Specified by:

skip in interface org.apache.hugegraph.computer.core.io.RandomAccessInput

Overrides:

skip in class UnsafeBytesInput

Throws:

java.io.IOException

require

protected void require(int size)
                throws java.io.IOException

Overrides:

require in class UnsafeBytesInput

Throws:

java.io.IOException

available

public long available()
               throws java.io.IOException

Specified by:

available in interface org.apache.hugegraph.computer.core.io.RandomAccessInput

Overrides:

available in class UnsafeBytesInput

Throws:

java.io.IOException

shiftAndFillBuffer

protected void shiftAndFillBuffer()
                           throws java.io.IOException

Throws:

java.io.IOException

fillBuffer

protected abstract void fillBuffer()
                            throws java.io.IOException

Throws:

java.io.IOException

compare

public int compare(long offset,
                   long length,
                   org.apache.hugegraph.computer.core.io.RandomAccessInput other,
                   long otherOffset,
                   long otherLength)
            throws java.io.IOException

Specified by:

compare in interface org.apache.hugegraph.computer.core.io.RandomAccessInput

Overrides:

compare in class UnsafeBytesInput

Throws:

java.io.IOException

bufferCapacity

protected int bufferCapacity()

fileLength

protected long fileLength()