org.das2.qstream.StreamDescriptor

Description of the Stream, and manages resources for the stream.

StreamDescriptor( javax.xml.parsers.DocumentBuilderFactory factory )

addDescriptor

addDescriptor( org.das2.qstream.Descriptor pd ) → void

add the descriptor to the stream, manually assigning it an id

Parameters

pd - a Descriptor

Returns:

void (returns nothing)

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addDescriptor( org.das2.qstream.Descriptor pd, int descriptorId ) → void

descriptorId

descriptorId( org.das2.qstream.Descriptor pd ) → int

get the id for the descriptor. Note packetDescriptors contain the id, but this is not used.

Parameters

pd - the packet descriptor.

Returns:

the id

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getByteOrder

getByteOrder( ) → ByteOrder

Returns:

java.nio.ByteOrder

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getDomElement

getDomElement( ) → Element

Returns:

org.w3c.dom.Element

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hasDescriptor

hasDescriptor( org.das2.qstream.Descriptor pd0, int descriptorId ) → boolean

If a second PacketDescriptor contains the same descriptor information, then the PacketDescriptor can be dropped. This was introduced when two daily streams appended did not create a valid stream. It has the descriptor if: * the number is the same * the planes within are the same ids.

Parameters

pd0 - a Descriptor
descriptorId - an int

Returns:

a boolean

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isAsciiTypes

isAsciiTypes( ) → boolean

Returns:

boolean

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newDocument

newDocument( org.das2.qstream.Descriptor descriptor ) → Document

get the XML document that will contain the descriptor. Note that a QStream will have many XML documents, one for each descriptor. This keeps track of the documents for each descriptor.