thredds.core

Class DatasetHandler

java.lang.Object

thredds.core.DatasetHandler

public class DatasetHandler
extends Object

Access to CDM Datasets as NetcdfFile or GridDataset. 1) if dataset with ncml, open that 2) if datasetScan with ncml, wrap

Since:

1/23/2015

Author:

caron

Constructor Summary

Constructors

Constructor and Description
DatasetHandler()

Method Summary

Methods

Modifier and Type	Method and Description
static String	findResourceControl(String path) Find the longest match for this path.
static FeatureCollection	getFeatureCollection(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
static FeatureCollection	getFeatureCollection(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String reqPath)
static NetcdfFile	getNetcdfFile(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
static NetcdfFile	getNetcdfFile(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String reqPath)
static String	getNetcdfFilePath(javax.servlet.http.HttpServletRequest req, String reqPath)
static void	makeDebugActions()
static GridDataset	openGridDataset(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String reqPath) Open a file as a GridDataset, using getNetcdfFile(), so that it gets wrapped in NcML if needed.
static GridDataset	openGridDataset(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String reqPath, Set<NetcdfDataset.Enhance> enhanceMode) Open a file as a GridDataset, using getNetcdfFile(), so that it gets wrapped in NcML if needed.
static void	registerDatasetSource(DatasetSource v)
static void	registerDatasetSource(String className)
static boolean	resourceControlOk(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String reqPath) Check if this is making a request for a restricted dataset, and if so, if its allowed.

Methods inherited from class java.lang.Object

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

Constructor Detail

DatasetHandler

public DatasetHandler()

Method Detail

makeDebugActions

public static void makeDebugActions()

registerDatasetSource

public static void registerDatasetSource(String className)

registerDatasetSource

public static void registerDatasetSource(DatasetSource v)

getNetcdfFile

public static NetcdfFile getNetcdfFile(javax.servlet.http.HttpServletRequest req,
                       javax.servlet.http.HttpServletResponse res)
                                throws IOException

Throws:

IOException

getNetcdfFile

public static NetcdfFile getNetcdfFile(javax.servlet.http.HttpServletRequest req,
                       javax.servlet.http.HttpServletResponse res,
                       String reqPath)
                                throws IOException

Throws:

IOException

getNetcdfFilePath

public static String getNetcdfFilePath(javax.servlet.http.HttpServletRequest req,
                       String reqPath)
                                throws IOException

Throws:

IOException

getFeatureCollection

public static FeatureCollection getFeatureCollection(javax.servlet.http.HttpServletRequest req,
                                     javax.servlet.http.HttpServletResponse res)
                                              throws IOException

Throws:

IOException

getFeatureCollection

public static FeatureCollection getFeatureCollection(javax.servlet.http.HttpServletRequest req,
                                     javax.servlet.http.HttpServletResponse res,
                                     String reqPath)
                                              throws IOException

Throws:

IOException

openGridDataset

public static GridDataset openGridDataset(javax.servlet.http.HttpServletRequest req,
                          javax.servlet.http.HttpServletResponse res,
                          String reqPath)
                                   throws IOException

Open a file as a GridDataset, using getNetcdfFile(), so that it gets wrapped in NcML if needed.

Parameters:

req - the request

res - the response

reqPath - the request path

Returns:

GridDataset

Throws:

IOException - on read error

openGridDataset

public static GridDataset openGridDataset(javax.servlet.http.HttpServletRequest req,
                          javax.servlet.http.HttpServletResponse res,
                          String reqPath,
                          Set<NetcdfDataset.Enhance> enhanceMode)
                                   throws IOException

Open a file as a GridDataset, using getNetcdfFile(), so that it gets wrapped in NcML if needed.

Parameters:

req - the request

res - the response

reqPath - the request path

enhanceMode - optional enhance mode or null

Returns:

GridDataset

Throws:

IOException - on read error

findResourceControl

public static String findResourceControl(String path)

Find the longest match for this path.

Parameters:

path - the complete path name of the dataset

Returns:

ResourceControl for this dataset, or null if none

resourceControlOk

public static boolean resourceControlOk(javax.servlet.http.HttpServletRequest req,
                        javax.servlet.http.HttpServletResponse res,
                        String reqPath)
                                 throws IOException

Check if this is making a request for a restricted dataset, and if so, if its allowed.

Parameters:

req - the request

res - the response

reqPath - the request path; if null, use req.getPathInfo()

Returns:

true if ok to proceed. If false, the appropriate error or redirect message has been sent, the caller only needs to return.

Throws:

IOException - on read error