dap4.servlet

Class CDMDSP

java.lang.Object

dap4.dap4shared.AbstractDSP

dap4.servlet.CDMDSP

All Implemented Interfaces:

DSP

public class CDMDSP
extends AbstractDSP

CDM->DAP DSP

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	closed
protected static String	DAPVERSION
protected CDMDataDataset	data
protected static boolean	DEBUG
protected DapDataset	dmr
protected static String	DMRVERSION
protected static Set<NetcdfDataset.Enhance>	ENHANCEMENT
protected DapFactory	factory
protected static Object	FACTORYKEY
protected static Class	NC4CLASS
protected static boolean	nc4loaded
protected NetcdfDataset	ncfile
protected NodeMap	nodemap
protected static String	SYNTHETICTAG

Fields inherited from class dap4.dap4shared.AbstractDSP

context, path, xuri

Constructor Summary

Constructors

Constructor and Description
CDMDSP()
CDMDSP(String path)
CDMDSP(String path, DapContext cxt)

Method Summary

Methods

Modifier and Type	Method and Description
void	build() Extract the metadata from the NetcdfDataset and build the DMR.
protected DapAtomicVariable	buildatomicvar(Variable cdmvar)
protected DapAttribute	buildattribute(Attribute attr)
protected void	buildattributes(DapNode node, List<Attribute> attributes)
protected DataVariable	buildData(DapVariable dap)
protected DataDataset	buildDataDataset() Build a tree of Data objects corresponding to the DMR.
protected DapDimension	builddim(Dimension cdmdim)
protected void	builddimrefs(DapVariable dapvar, List<Dimension> cdmdims) Assign dimensions to a variable
protected DapEnum	buildenum(EnumTypedef cdmenum)
protected DapAtomicVariable	buildenumvar(Variable cdmvar)
protected DapGroup	buildgroup(Group cdmgroup)
protected void	buildmaps(DapVariable dapvar, Variable var)
protected DapAtomicVariable	buildopaquevar(Variable cdmvar)
protected DapSequence	buildsequence(Variable cdmbasevar)
protected DapAtomicVariable	buildstringvar(Variable cdmvar)
protected DapStructure	buildstructvar(Variable cdmvar)
protected DapNode	buildvariable(Variable cdmvar, DapNode parent)
protected DapNode	buildvariable(Variable cdmbasevar, List<Dimension> cdmdims, DapNode parent)
void	close()
protected NetcdfFile	createNetcdfFile()
protected long	dapsize(Dimension cdmdim)
protected void	fillgroup(DapGroup dapgroup, Group cdmgroup)
protected Dimension	finddimdecl(Dimension dimref)
CDMNode	getCDMNode(DapNode dapnode) Lookup a dapnode in the dap nodemap.
DataDataset	getDataDataset()
NetcdfDataset	getNetcdfDataset()
protected boolean	isdeclfor(Dimension decl, Dimension ref)
static void	loadNc4Iosp() Make sure that NC4Iosp is registered and library loaded
protected DapNode	lookupNode(CDMNode cdmnode) Lookup a cdmnode in the cdmnodemap.
boolean	match(String path, DapContext context)
protected DapNode	newNode(DapSort sort)
DSP	open(String path)
DSP	open(String path, DapContext context)
protected void	processmappedvariables(Group g)
protected void	recordNode(CDMNode cdmnode, DapNode dapnode) Record a cdmnode+dapnode in the nodemap.
void	setDataDataset(CDMDataDataset data)
protected boolean	suppress(String attrname) Some attributes that are added by the NetcdfDataset need to be kept out of the DMR.
protected boolean	validatecdmtype(DataType datatype, boolean unsigned, Class typeclass)

Methods inherited from class dap4.dap4shared.AbstractDSP

getContext, getDMR, getPath, setContext, setDataset, setPath

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

protected static final boolean DEBUG

See Also:

Constant Field Values

FACTORYKEY

protected static final Object FACTORYKEY

SYNTHETICTAG

protected static final String SYNTHETICTAG

See Also:

Constant Field Values

DAPVERSION

protected static final String DAPVERSION

See Also:

Constant Field Values

DMRVERSION

protected static final String DMRVERSION

See Also:

Constant Field Values

NC4CLASS

protected static final Class NC4CLASS

ENHANCEMENT

protected static Set<NetcdfDataset.Enhance> ENHANCEMENT

nc4loaded

protected static boolean nc4loaded

ncfile

protected NetcdfDataset ncfile

dmr

protected DapDataset dmr

factory

protected DapFactory factory

nodemap

protected NodeMap nodemap

closed

protected boolean closed

data

protected CDMDataDataset data

Constructor Detail

CDMDSP

public CDMDSP()

CDMDSP

public CDMDSP(String path)
       throws DapException

Throws:

DapException

CDMDSP

public CDMDSP(String path,
      DapContext cxt)
       throws DapException

Throws:

DapException

Method Detail

loadNc4Iosp

public static void loadNc4Iosp()
                        throws DapException

Make sure that NC4Iosp is registered and library loaded

Throws:

DapException

match

public boolean match(String path,
            DapContext context)

Specified by:

match in interface DSP

Specified by:

match in class AbstractDSP

open

public DSP open(String path)
         throws DapException

Specified by:

open in interface DSP

Specified by:

open in class AbstractDSP

Throws:

DapException

open

public DSP open(String path,
       DapContext context)
         throws DapException

Specified by:

open in interface DSP

Specified by:

open in class AbstractDSP

Throws:

DapException

close

public void close()

getDataDataset

public DataDataset getDataDataset()

Specified by:

getDataDataset in interface DSP

Specified by:

getDataDataset in class AbstractDSP

getNetcdfDataset

public NetcdfDataset getNetcdfDataset()

setDataDataset

public void setDataDataset(CDMDataDataset data)

getCDMNode

public CDMNode getCDMNode(DapNode dapnode)

Lookup a dapnode in the dap nodemap.

Parameters:

dapnode - The DapNode

Returns:

The corresponding CDMNode or null

recordNode

protected void recordNode(CDMNode cdmnode,
              DapNode dapnode)

Record a cdmnode+dapnode in the nodemap. Make sure that we use the proper object in order to avoid identity problems.

Parameters:

cdmnode - The CMDNode (variable, dimension, etc) to record

dapnode - The DapNode to which the cdmnode is to be mapped.

lookupNode

protected DapNode lookupNode(CDMNode cdmnode)

Lookup a cdmnode in the cdmnodemap. Make sure that we use the proper object in order to avoid identity problems.

Parameters:

cdmnode - The CMDNode (variable, dimension, etc) to record

Returns:

The DapNode to which the cdmnode is to be mapped or null.

build

public void build()
           throws DapException

Extract the metadata from the NetcdfDataset and build the DMR.

Throws:

DapException

fillgroup

protected void fillgroup(DapGroup dapgroup,
             Group cdmgroup)
                  throws DapException

Throws:

DapException

builddim

protected DapDimension builddim(Dimension cdmdim)
                         throws DapException

Throws:

DapException

buildenum

protected DapEnum buildenum(EnumTypedef cdmenum)
                     throws DapException

Throws:

DapException

buildvariable

protected DapNode buildvariable(Variable cdmvar,
                    DapNode parent)
                         throws DapException

Throws:

DapException

buildvariable

protected DapNode buildvariable(Variable cdmbasevar,
                    List<Dimension> cdmdims,
                    DapNode parent)
                         throws DapException

Throws:

DapException

buildatomicvar

protected DapAtomicVariable buildatomicvar(Variable cdmvar)
                                    throws DapException

Throws:

DapException

buildopaquevar

protected DapAtomicVariable buildopaquevar(Variable cdmvar)
                                    throws DapException

Throws:

DapException

buildstringvar

protected DapAtomicVariable buildstringvar(Variable cdmvar)
                                    throws DapException

Throws:

DapException

buildenumvar

protected DapAtomicVariable buildenumvar(Variable cdmvar)
                                  throws DapException

Throws:

DapException

buildstructvar

protected DapStructure buildstructvar(Variable cdmvar)
                               throws DapException

Throws:

DapException

buildsequence

protected DapSequence buildsequence(Variable cdmbasevar)
                             throws DapException

Throws:

DapException

buildattributes

protected void buildattributes(DapNode node,
                   List<Attribute> attributes)
                        throws DapException

Throws:

DapException

buildattribute

protected DapAttribute buildattribute(Attribute attr)
                               throws DapException

Throws:

DapException

builddimrefs

protected void builddimrefs(DapVariable dapvar,
                List<Dimension> cdmdims)
                     throws DapException

Assign dimensions to a variable

Parameters:

dapvar - The variable to which we wish to assign dimensions

cdmdims - The cdm dimensions from which we will find the dimension info

Throws:

DapException

processmappedvariables

protected void processmappedvariables(Group g)
                               throws DapException

Throws:

DapException

buildmaps

protected void buildmaps(DapVariable dapvar,
             Variable var)
                  throws DapException

Parameters:

dapvar - The variable to which we wish to assign maps

var - The NetcdfDataset variable from which to extract coord system

Throws:

DapException

buildgroup

protected DapGroup buildgroup(Group cdmgroup)
                       throws DapException

Throws:

DapException

newNode

protected DapNode newNode(DapSort sort)

dapsize

protected long dapsize(Dimension cdmdim)

validatecdmtype

protected boolean validatecdmtype(DataType datatype,
                      boolean unsigned,
                      Class typeclass)

finddimdecl

protected Dimension finddimdecl(Dimension dimref)

isdeclfor

protected boolean isdeclfor(Dimension decl,
                Dimension ref)

buildDataDataset

protected DataDataset buildDataDataset()
                                throws DataException

Build a tree of Data objects corresponding to the DMR.

Throws:

DataException

buildData

protected DataVariable buildData(DapVariable dap)
                          throws DataException

Throws:

DataException

createNetcdfFile

protected NetcdfFile createNetcdfFile()
                               throws DapException

Throws:

DapException

suppress

protected boolean suppress(String attrname)

Some attributes that are added by the NetcdfDataset need to be kept out of the DMR. This function defines that set.

Parameters:

attrname - A non-escaped attribute name to be tested for suppression

Returns:

true if the attribute should be suppressed, false otherwise.