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com.tangosol.io
Class AbstractByteArrayReadBuffer.ByteArrayBufferInput

java.lang.Object
java.io.InputStream
com.tangosol.io.AbstractReadBuffer.AbstractBufferInput
com.tangosol.io.AbstractByteArrayReadBuffer.ByteArrayBufferInput

All Implemented Interfaces:

InputStreaming, ReadBuffer.BufferInput, java.io.Closeable, java.io.DataInput

Enclosing class:

AbstractByteArrayReadBuffer

public final class AbstractByteArrayReadBuffer.ByteArrayBufferInput

extends AbstractReadBuffer.AbstractBufferInput

This is a simple implementation of the BufferInput interface on top of a byte array.

This implementation extends InputStream, but only so that it can be passed to anything that takes an InputStream.

Constructor Summary

AbstractByteArrayReadBuffer.ByteArrayBufferInput()
Default constructor.

Method Summary

protected java.lang.String	convertUTF(int of, int cb) Convert a UTF-8 encoded section of the binary stream into a String.
int	read() Read the next byte of data from the InputStream.
int	read(byte[] ab, int of, int cb) Read up to cb bytes from the input stream and store them into the passed array ab starting at offset of.
byte	readByte() Read a byte value.
int	readInt() Read an int value.
long	readLong() Read a long value.
int	readPackedInt() Read an int value using a variable-length storage format as described by WriteBuffer.BufferOutput.writePackedInt(int).
long	readPackedLong() Read a long value using a variable-length storage format as described by WriteBuffer.BufferOutput.writePackedLong(long).
int	readUnsignedShort() Read an unsigned short value.

Methods inherited from class com.tangosol.io.AbstractReadBuffer.AbstractBufferInput

adjustOffsetInternal, available, close, getBuffer, getCharBuf, getMarkInternal, getOffset, mark, markSupported, read, readBoolean, readBuffer, readChar, readDouble, readFloat, readFully, readFully, readLine, readSafeUTF, readShort, readUnsignedByte, readUTF, readUTF, reset, setMarkInternal, setOffset, setOffsetInternal, skip, skipBytes

Constructor Detail

AbstractByteArrayReadBuffer.ByteArrayBufferInput

public AbstractByteArrayReadBuffer.ByteArrayBufferInput()

Default constructor.

Method Detail

read

public int read()
         throws java.io.IOException

Read the next byte of data from the InputStream. The value byte is returned as an int in the range 0 to 255. If the end of the stream has been reached, the value -1 is returned.

This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Specified by:

read in interface InputStreaming

Overrides:

read in class AbstractReadBuffer.AbstractBufferInput

Returns:

the next byte of data, or -1 if the end of the stream has been reached

Throws:

java.io.IOException - if an I/O error occurs

read

public int read(byte[] ab,
                int of,
                int cb)
         throws java.io.IOException

Read up to cb bytes from the input stream and store them into the passed array ab starting at offset of. The number of bytes actually read is returned.

This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Specified by:

read in interface InputStreaming

Overrides:

read in class AbstractReadBuffer.AbstractBufferInput

Parameters:

ab - the array to store the bytes which are read from the stream

of - the offset into the array that the read bytes will be stored

cb - the maximum number of bytes to read

Returns:

the number of bytes read from the stream, or -1 if no bytes were read from the stream because the end of the stream had been reached

Throws:

java.io.IOException - if an I/O error occurs

readByte

public byte readByte()
              throws java.io.IOException

Read a byte value.

This method is the counterpart for the DataOutput.writeByte(int) method.

Specified by:

readByte in interface ReadBuffer.BufferInput

Specified by:

readByte in interface java.io.DataInput

Overrides:

readByte in class AbstractReadBuffer.AbstractBufferInput

Returns:

a byte value

Throws:

java.io.EOFException - if the value could not be read because no more data remains to be read

java.io.IOException - if an I/O error occurs

readUnsignedShort

public int readUnsignedShort()
                      throws java.io.IOException

Read an unsigned short value.

This method is the counterpart for the DataOutput.writeShort(int) method when it is used with unsigned 16-bit values.

Specified by:

readUnsignedShort in interface ReadBuffer.BufferInput

Specified by:

readUnsignedShort in interface java.io.DataInput

Overrides:

readUnsignedShort in class AbstractReadBuffer.AbstractBufferInput

Returns:

an int value in the range of 0x0000 to 0xFFFF

Throws:

java.io.EOFException - if the value could not be read because no more data remains to be read

java.io.IOException - if an I/O error occurs

readInt

public int readInt()
            throws java.io.IOException

Read an int value.

This method is the counterpart for the DataOutput.writeInt(int) method.

Specified by:

readInt in interface ReadBuffer.BufferInput

Specified by:

readInt in interface java.io.DataInput

Overrides:

readInt in class AbstractReadBuffer.AbstractBufferInput

Returns:

an int value

Throws:

java.io.EOFException - if the value could not be read because no more data remains to be read

java.io.IOException - if an I/O error occurs

readLong

public long readLong()
              throws java.io.IOException

Read a long value.

This method is the counterpart for the DataOutput.writeLong(long) method.

Specified by:

readLong in interface ReadBuffer.BufferInput

Specified by:

readLong in interface java.io.DataInput

Overrides:

readLong in class AbstractReadBuffer.AbstractBufferInput

Returns:

a long value

Throws:

java.io.EOFException - if the value could not be read because no more data remains to be read

java.io.IOException - if an I/O error occurs

readPackedInt

public int readPackedInt()
                  throws java.io.IOException

Read an int value using a variable-length storage format as described by WriteBuffer.BufferOutput.writePackedInt(int).

Specified by:

readPackedInt in interface ReadBuffer.BufferInput

Overrides:

readPackedInt in class AbstractReadBuffer.AbstractBufferInput

Returns:

an int value

Throws:

java.io.IOException - if an I/O error occurs

readPackedLong

public long readPackedLong()
                    throws java.io.IOException

Read a long value using a variable-length storage format as described by WriteBuffer.BufferOutput.writePackedLong(long).

Specified by:

readPackedLong in interface ReadBuffer.BufferInput

Overrides:

readPackedLong in class AbstractReadBuffer.AbstractBufferInput

Returns:

a long value

Throws:

java.io.IOException - if an I/O error occurs

convertUTF

protected java.lang.String convertUTF(int of,
                                      int cb)
                               throws java.io.IOException

Convert a UTF-8 encoded section of the binary stream into a String.

Overrides:

convertUTF in class AbstractReadBuffer.AbstractBufferInput

Parameters:

of - the offset within the stream

cb - the length in bytes within the stream

Returns:

the String value

Throws:

java.io.IOException - if an I/O or conversion exception occurs, such as UTFDataFormatException

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