dap4.servlet

Class SerialWriter

java.lang.Object

dap4.servlet.SerialWriter

public class SerialWriter
extends java.lang.Object

The SerialWriter class is intended to provide the API through which various kinds of data are written into the ChunkWriter.

Ideally, this class should be completely independent of CDM code so that Non-NetcdfDataset writers can be accomodated.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.zip.Checksum	checksum
protected dap4.core.data.ChecksumMode	checksummode
protected java.nio.ByteBuffer	countbuffer
protected java.nio.ByteBuffer	crcbuffer
static boolean	DEBUG
protected int	depth
static boolean	DUMPCSUM
static boolean	DUMPDATA
protected java.lang.String	lastchecksum
protected java.nio.ByteOrder	order
protected java.io.OutputStream	output
protected boolean	serialize

Constructor Summary

Constructors

Constructor and Description
SerialWriter(java.io.OutputStream output, java.nio.ByteOrder order, dap4.core.data.ChecksumMode mode)

Method Summary

Modifier and Type	Method and Description
static java.nio.ByteBuffer	encodeArray(dap4.core.dmr.DapType vtype, java.lang.Object values, java.nio.ByteOrder order) Encode an array of primitive values.
void	endGroup()
void	endVariable()
void	flush()
java.lang.String	getLastChecksum()
void	noSerialize(boolean tf)
void	outputBytes(byte[] bytes, int start, int count) Deliberate choke point for debugging
void	startGroup()
void	startVariable()
void	writeAtomicArray(dap4.core.dmr.DapType daptype, java.lang.Object values) Write out an array of atomic values
void	writeBytes(byte[] bytes, int len) Write out a set of bytes
void	writeCount(long count) Write out a prefix count

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

public static boolean DEBUG

DUMPDATA

public static boolean DUMPDATA

DUMPCSUM

public static boolean DUMPCSUM

order

protected java.nio.ByteOrder order

output

protected java.io.OutputStream output

depth

protected int depth

checksum

protected java.util.zip.Checksum checksum

checksummode

protected dap4.core.data.ChecksumMode checksummode

serialize

protected boolean serialize

lastchecksum

protected java.lang.String lastchecksum

crcbuffer

protected java.nio.ByteBuffer crcbuffer

countbuffer

protected java.nio.ByteBuffer countbuffer

Constructor Detail

SerialWriter

public SerialWriter(java.io.OutputStream output,
                    java.nio.ByteOrder order,
                    dap4.core.data.ChecksumMode mode)

Method Detail

noSerialize

public void noSerialize(boolean tf)

getLastChecksum

public java.lang.String getLastChecksum()

encodeArray

public static java.nio.ByteBuffer encodeArray(dap4.core.dmr.DapType vtype,
                                              java.lang.Object values,
                                              java.nio.ByteOrder order)
                                       throws java.io.IOException

Encode an array of primitive values.

Parameters:

vtype - The type of the object

values - The value array

Returns:

bytebuffer encoding of the array using the platform's native encoding.

Throws:

java.io.IOException

startGroup

public void startGroup()

endGroup

public void endGroup()

startVariable

public void startVariable()

endVariable

public void endVariable()
                 throws java.io.IOException

Throws:

java.io.IOException

writeCount

public void writeCount(long count)
                throws java.io.IOException

Write out a prefix count

Parameters:

count - the count to write out

Throws:

java.io.IOException

writeAtomicArray

public void writeAtomicArray(dap4.core.dmr.DapType daptype,
                             java.lang.Object values)
                      throws java.io.IOException

Write out an array of atomic values

Parameters:

daptype - type of the values

values - the array of values

Throws:

java.io.IOException

writeBytes

public void writeBytes(byte[] bytes,
                       int len)
                throws java.io.IOException

Write out a set of bytes

Parameters:

bytes -

len -

Throws:

java.io.IOException

outputBytes

public void outputBytes(byte[] bytes,
                        int start,
                        int count)
                 throws java.io.IOException

Deliberate choke point for debugging

Parameters:

bytes -

start -

count -

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Throws:

java.io.IOException