dap4.cdm

Class CDMCompiler

java.lang.Object

dap4.cdm.CDMCompiler

public class CDMCompiler
extends Object

The goal for the CDM compiler is two-fold: 1. Create a set of CDMNodes corresponding to the relevant nodes in the DMR. 2. Create a set of CDM ucar.ma2.array objects that wrap the DataDataset object.

Constructor Summary

Constructors

Constructor and Description
CDMCompiler(DapNetcdfFile ncfile, D4DSP dsp) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
protected CDMArray	compileAtomicVar(DataVariable d4var) Compile an Atomic Valued variable.
protected void	compileDMR() Convert a DMR to equivalent CDM meta-databuffer and populate a NetcdfFile with it.
protected CDMArray	compileStructure(D4DataStructure d4var, int index, CDMArrayStructure container) Compile a single structure instance.
protected CDMArray	compileStructureArray(D4DataCompoundArray d4var) Compile an array of structures.
protected CDMArray	compileVar(DataVariable d4var)
NodeMap	getNodeMap()

Methods inherited from class java.lang.Object

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

Constructor Detail

CDMCompiler

public CDMCompiler(DapNetcdfFile ncfile,
           D4DSP dsp)
            throws DapException

Constructor

Parameters:

ncfile - the target NetcdfFile

dsp - the compiled D4 databuffer

Throws:

DapException

Method Detail

getNodeMap

public NodeMap getNodeMap()

compileDMR

protected void compileDMR()
                   throws DapException

Convert a DMR to equivalent CDM meta-databuffer and populate a NetcdfFile with it.

Throws:

DapException

compileVar

protected CDMArray compileVar(DataVariable d4var)
                       throws DapException

Throws:

DapException

compileAtomicVar

protected CDMArray compileAtomicVar(DataVariable d4var)
                             throws DapException

Compile an Atomic Valued variable.

Parameters:

d4var - The D4 databuffer wrapper

Returns:

An Array object wrapping d4var.

Throws:

DapException

compileStructure

protected CDMArray compileStructure(D4DataStructure d4var,
                        int index,
                        CDMArrayStructure container)
                             throws DapException

Compile a single structure instance. WARNING: the underlying CDM code (esp. NetcdfDataset) apparently does not support nested structure arrays; so this code may throw an exception.

Parameters:

d4var - the data underlying this structure instance

index - the index in the parent compound array.

container - the parent CDMArrayStructure

Returns:

An Array for this instance

Throws:

DapException

compileStructureArray

protected CDMArray compileStructureArray(D4DataCompoundArray d4var)
                                  throws DapException

Compile an array of structures. WARNING: the underlying CDM code (esp. NetcdfDataset) apparently does not support nested structure arrays; so this code may throw an exception.

Parameters:

d4var - The D4 databuffer wrapper

Returns:

A CDMArrayStructure for the databuffer for this struct.

Throws:

DapException