dap4.dap4shared

Class HttpDSP

java.lang.Object

dap4.dap4shared.AbstractDSP

dap4.dap4shared.D4DSP

dap4.dap4shared.HttpDSP

All Implemented Interfaces:

DSP

public class HttpDSP
extends D4DSP

Make a request to a server and convert the reply to a DapDataset from the returned bytes.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	allowCompression
protected String	basece
protected static String	CHECKSUMTAG
protected static String	CONSTRAINTTAG
protected static String[]	DAP4EXTENSIONS
protected static String	DAP4PROTO
protected static String[]	DAPEXTENSIONS
protected static String	DAPVERSION
protected static String	DATASUFFIX
protected static int	DFALTPRELOADSIZE
protected static String	DMRSUFFIX
protected static String	DMRVERSION
protected static String	DSRSUFFIX
protected static String	FILEPROTO
protected String	originalurl
protected int	preloadsize
protected static String	PROTOTAG
protected static String	QUERYSTART
protected int	status
protected XURI	xuri

Fields inherited from class dap4.dap4shared.D4DSP

checksummode, d4data, databuffer, DEBUG, order, serialization

Fields inherited from class dap4.dap4shared.AbstractDSP

context, dmr, PARSEDEBUG, path

Constructor Summary

Constructors

Constructor and Description
HttpDSP()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	build() Open a connection and make a request for the (possibly constrained) DMR.
protected static String	buildURL(String baseurl, String suffix, DapDataset template, String ce)
protected InputStream	callServer(String methodurl)
void	close()
String	getCapabilities(String url) Provide a method for getting the capabilities document.
static boolean	match(String url, DapContext context) A path is a DAP4 path if at least one of the following is true.
DSP	open(String url, DapContext context)
protected void	setURL(String url)

Methods inherited from class dap4.dap4shared.D4DSP

build, build, getChecksumMode, getData, getDataDataset, getOrder, setChecksumMode, setDataDataset, setOrder

Methods inherited from class dap4.dap4shared.AbstractDSP

getContext, getDMR, getPath, open, parseDMR, setContext, setDataset, setPath

Methods inherited from class java.lang.Object

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

Field Detail

DAPVERSION

protected static final String DAPVERSION

See Also:

Constant Field Values

DMRVERSION

protected static final String DMRVERSION

See Also:

Constant Field Values

DAP4PROTO

protected static final String DAP4PROTO

See Also:

Constant Field Values

FILEPROTO

protected static final String FILEPROTO

See Also:

Constant Field Values

DMRSUFFIX

protected static final String DMRSUFFIX

See Also:

Constant Field Values

DATASUFFIX

protected static final String DATASUFFIX

See Also:

Constant Field Values

DSRSUFFIX

protected static final String DSRSUFFIX

See Also:

Constant Field Values

QUERYSTART

protected static final String QUERYSTART

See Also:

Constant Field Values

CONSTRAINTTAG

protected static final String CONSTRAINTTAG

See Also:

Constant Field Values

CHECKSUMTAG

protected static final String CHECKSUMTAG

See Also:

Constant Field Values

PROTOTAG

protected static final String PROTOTAG

See Also:

Constant Field Values

DFALTPRELOADSIZE

protected static final int DFALTPRELOADSIZE

See Also:

Constant Field Values

DAPEXTENSIONS

protected static final String[] DAPEXTENSIONS

DAP4EXTENSIONS

protected static final String[] DAP4EXTENSIONS

originalurl

protected String originalurl

allowCompression

protected boolean allowCompression

preloadsize

protected int preloadsize

basece

protected String basece

status

protected int status

xuri

protected XURI xuri

Constructor Detail

HttpDSP

public HttpDSP()

Method Detail

match

public static boolean match(String url,
            DapContext context)

A path is a DAP4 path if at least one of the following is true. 1. it has "dap4:" as its leading protocol 2. it has #protocol=dap4 in its fragment

Parameters:

url -

context - Any parameters that may help to decide.

Returns:

true if this url appears to be processible by this DSP

open

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

Specified by:

open in interface DSP

Specified by:

open in class AbstractDSP

Throws:

DapException

close

public void close()

build

protected void build()
              throws DapException

Open a connection and make a request for the (possibly constrained) DMR.

Throws:

DapException

callServer

protected InputStream callServer(String methodurl)
                          throws DapException

Throws:

DapException

getCapabilities

public String getCapabilities(String url)
                       throws IOException

Provide a method for getting the capabilities document.

Parameters:

url - for accessing the document

Throws:

DapException

IOException

buildURL

protected static String buildURL(String baseurl,
              String suffix,
              DapDataset template,
              String ce)

setURL

protected void setURL(String url)
               throws DapException

Throws:

DapException