Package org.vast.ogc.om

Class OMUtils

java.lang.Object

org.vast.ogc.om.OMUtils

public class OMUtils
extends Object

Provides Helper methods to read and write O&M observations in a version agnostic manner.

Since:

Feb 22, 2007

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	defaultVersion
static final String	OBSERVATION
static final String	OM
static final String	V2_0
protected static final Pattern	versionRegex

Constructor Summary

Constructors

Constructor	Description
OMUtils(String version)

Method Summary

Modifier and Type	Method	Description
String	getVersion(DOMHelper dom, Element omElt)	Logic to guess O&M version from namespace
static void	loadRegistry()
IObservation	readObservation(InputStream inputStream)	Reads an O&M observation object from an InputStream
IObservation	readObservation(DOMHelper dom, Element obsElt)	Read an O&M observation object from a DOM element
void	writeObservation(OutputStream outputStream, IObservation obs, String version)	Writes XML for an Observation of selected version in the specified OutputStream
Element	writeObservation(DOMHelper dom, IObservation obs, String version)	Builds a DOM Element from the content of the IObservation object

Methods inherited from class java.lang.Object

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

Field Details

OM

public static final String OM

V2_0

public static final String V2_0

See Also:

• Constant Field Values

OBSERVATION

public static final String OBSERVATION

See Also:

• Constant Field Values

versionRegex

protected static final Pattern versionRegex

defaultVersion

protected static final String defaultVersion

See Also:

• Constant Field Values

Constructor Details

OMUtils

public OMUtils(String version)

Method Details

loadRegistry

public static void loadRegistry()

readObservation

public IObservation readObservation(DOMHelper dom,
 Element obsElt)
                             throws XMLReaderException

Read an O&M observation object from a DOM element

Parameters:

dom - DOMHelper to use to read the element content

obsElt - DOM element corresponding to the Observation

Returns:

Concrete instance of IObservation containing information parsed from the DOM tree

Throws:

XMLReaderException

readObservation

public IObservation readObservation(InputStream inputStream)
                             throws XMLReaderException

Reads an O&M observation object from an InputStream

Parameters:

inputStream - input stream to read from

Returns:

Concrete instance of IObservation containing information parsed from XML

Throws:

XMLReaderException

writeObservation

public Element writeObservation(DOMHelper dom,
 IObservation obs,
 String version)
                         throws XMLWriterException

Builds a DOM Element from the content of the IObservation object

Parameters:

dom - DOMHelper used to generate the element

obs - Observation instance whose content will be serialized

version - Version of O&M schema to use

Returns:

New DOM Element

Throws:

XMLWriterException

writeObservation

public void writeObservation(OutputStream outputStream,
 IObservation obs,
 String version)
                      throws XMLWriterException,
IOException

Writes XML for an Observation of selected version in the specified OutputStream

Parameters:

outputStream - Outputstream to write the XML into

obs - Observation instance whose content will be serialized

version - Version of O&M schema to use

Throws:

XMLWriterException

IOException

getVersion

public String getVersion(DOMHelper dom,
 Element omElt)

Logic to guess O&M version from namespace

Parameters:

dom -

omElt -

Returns:

Version string