org.das2.qstream.SerialStreamFormatter

We need a class that can format a stream serially. SimpleStreamFormatter needs the whole dataset, which really misses the point with QStreams, that you can process and create data streams serially on the server side. The das2stream codes were first coded with this use case, but QStreams were not and because of this a good serial generator was never created. See the main method for an example of how this is used. Note this class is not thread-safe and assumes that only one thread will be working on the stream. This may change.

SerialStreamFormatter( )


DEFAULT_TIME_DIGITS


INOUTFORM_INLINE


INOUTFORM_ONE_RECORD


INOUTFORM_STREAMING


format

format( String joinName, String name, QDataSet ds1, String inoutForm ) → void

format the dataset, maybe sending a descriptor if it hasn't been sent already.

Parameters

joinName - the name to which we join the dataset.
name - the name for the dataset of which ds1 is all or a slice of, or null.
ds1 - a QDataSet
inoutForm - one of "inline", "oneRecord", or "streaming"

Returns:

void (returns nothing)

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format( String name, QDataSet ds1, String inoutForm ) → void

init

init( String name, java.nio.channels.WritableByteChannel out ) → void

the name of the default dataset.

Parameters

name - a String
out - a WritableByteChannel

Returns:

void (returns nothing)

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init( String name, org.das2.qstream.StreamHandler sh ) → void

isAsciiTypes

isAsciiTypes( ) → boolean

Returns:

boolean

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isBigEndian

isBigEndian( ) → boolean

Returns:

boolean

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join

join( String name, int rank, java.util.Map props ) → void

Parameters

name - a String
rank - an int
props - a java.util.Map

Returns:

void (returns nothing)

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main

main( java.lang.String[][] args ) → void

Parameters

args - a java.lang.String[]

Returns:

void (returns nothing)

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maybeFormat

maybeFormat( String name, QDataSet ds1, String inoutForm ) → void

format the dataset, maybe sending a descriptor if it hasn't been sent already. ds1 may be null in this function, in which case nothing needs to be done.

Parameters

name - the name for the dataset of which ds1 is all or a slice of, or null.
ds1 - a QDataSet
inoutForm - a String

Returns:

void (returns nothing)

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retire

retire( String name ) → void

allow the stream to recycle the name. new packets with this name will issue a new packetDescriptor.

Parameters

name - a String

Returns:

void (returns nothing)

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setAsciiTypes

setAsciiTypes( boolean asciiTypes ) → void

Parameters

asciiTypes - a boolean

Returns:

void (returns nothing)

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setBigEndian

setBigEndian( boolean bigEndian ) → void

Parameters

bigEndian - a boolean

Returns:

void (returns nothing)

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setTransferType

setTransferType( String name, org.das2.qstream.TransferType tt ) → void

explicitly set the transfer type.

Parameters

name - a String
tt - a TransferType

Returns:

void (returns nothing)

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setUnitTransferType

setUnitTransferType( Units u, org.das2.qstream.TransferType tt ) → void

explicitly set the transfer type used to transfer data that is convertible to this unit.

Parameters

u - an Units
tt - a TransferType

Returns:

void (returns nothing)

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