Package org.geotools.ows.wms.map
Class WMSCoverageReader
- Object
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- AbstractGridCoverage2DReader
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- WMSCoverageReader
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- All Implemented Interfaces:
GridCoverageReader
,GridCoverage2DReader
public class WMSCoverageReader extends AbstractGridCoverage2DReader
A grid coverage readers backing onto a WMS server by issuing GetMap
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Field Summary
Fields Modifier and Type Field Description static Logger
LOGGER
The logger for the map module.-
Fields inherited from class AbstractGridCoverage2DReader
closeMe, coverageFactory, coverageName, crs, dtLayout, EPS, gzipped, highestRes, hints, inStream, inStreamSPI, numOverviews, offsets, originalEnvelope, originalGridRange, overViewResolutions, raster2Model, scales, source
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Fields inherited from interface GridCoverage2DReader
ELEVATION_DOMAIN, ELEVATION_DOMAIN_MAXIMUM, ELEVATION_DOMAIN_MINIMUM, ELEVATION_DOMAIN_RESOLUTION, FILE_SOURCE_PROPERTY, HAS_ELEVATION_DOMAIN, HAS_TIME_DOMAIN, MULTICRS_EPSGCODES, MULTICRS_READER, PAM_DATASET, REPROJECTING_READER, SOURCE_URL_PROPERTY, TIME_DOMAIN, TIME_DOMAIN_MAXIMUM, TIME_DOMAIN_MINIMUM, TIME_DOMAIN_RESOLUTION
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Constructor Summary
Constructors Constructor Description WMSCoverageReader(WebMapServer wms, Layer layer)
Builds a new WMS coverage readerWMSCoverageReader(WebMapServer wms, Layer layer, String style)
WMSCoverageReader(WebMapServer wms, Layer layer, String style, String preferredFormat)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description String
getDefaultFormat(List<String> formats)
InputStream
getFeatureInfo(Position2D pos, String infoFormat, int featureCount, GetMapRequest getmap)
Issues GetFeatureInfo against a point using the params of the last GetMap requestFormat
getFormat()
Returns the format handled by thisGridCoverageReader
.List<Layer>
getLayers()
fetch the WMS Layers used in this coverage.String[]
getMetadataNames()
Returns the list of metadata keywords associated with the input source as a whole (not associated with any particular grid coverage).String
getMetadataValue(String name)
Retrieve the metadata value for a given metadata name.List<String>
getStyles()
fetch the names of the styles used in this layer.GridCoverage2D
read(GeneralParameterValue[] parameters)
Read the current grid coverage from the stream.void
updateBounds()
Returns the layer bounds-
Methods inherited from class AbstractGridCoverage2DReader
addAllSiblings, addSiblings, checkName, collectScaleOffset, createImageCoverage, createImageCoverage, createImageCoverage, createImageCoverage, decimationOnReadingControl, dispose, finalize, getCoordinateReferenceSystem, getCoordinateReferenceSystem, getDatasetLayout, getDatasetLayout, getDynamicParameters, getDynamicParameters, getFiles, getGridCoverageCount, getGridCoverageNames, getGroundControlPoints, getGroundControlPoints, getHighestRes, getHighestRes, getImageLayout, getImageLayout, getInfo, getInfo, getMetadataNames, getMetadataValue, getMultiLevelROIProvider, getOriginalEnvelope, getOriginalEnvelope, getOriginalGridRange, getOriginalGridRange, getOriginalGridToWorld, getOriginalGridToWorld, getOverviewGridEnvelope, getOverviewGridEnvelope, getPamDataset, getPamDataset, getReadingResolutions, getReadingResolutions, getRescaledRasterToModel, getResolution, getResolutionLevels, getResolutionLevels, getSibling, getSource, getSourceAsFile, read, setlayout, setLayout, setReadParams, setReadParams
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Field Detail
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LOGGER
public static final Logger LOGGER
The logger for the map module.
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Constructor Detail
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WMSCoverageReader
public WMSCoverageReader(WebMapServer wms, Layer layer)
Builds a new WMS coverage reader
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WMSCoverageReader
public WMSCoverageReader(WebMapServer wms, Layer layer, String style)
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WMSCoverageReader
public WMSCoverageReader(WebMapServer wms, Layer layer, String style, String preferredFormat)
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Method Detail
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getFeatureInfo
public InputStream getFeatureInfo(Position2D pos, String infoFormat, int featureCount, GetMapRequest getmap) throws IOException
Issues GetFeatureInfo against a point using the params of the last GetMap request- Throws:
IOException
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read
public GridCoverage2D read(GeneralParameterValue[] parameters) throws IllegalArgumentException, IOException
Description copied from class:AbstractGridCoverage2DReader
Read the current grid coverage from the stream.Example:
- Specified by:
read
in interfaceGridCoverage2DReader
- Specified by:
read
in interfaceGridCoverageReader
- Specified by:
read
in classAbstractGridCoverage2DReader
- Parameters:
parameters
- Optional parameters matchingFormat.getReadParameters()
.- Returns:
- a grid coverage from the input source.
- Throws:
InvalidParameterNameException
- if a parameter inparameters
doesn't have a recognized name.InvalidParameterValueException
- if a parameter inparameters
doesn't have a valid value.ParameterNotFoundException
- if a parameter was required for the operation but was not provided in theparameters
list.IOException
- if a read operation failed for some other input/output reason, includingFileNotFoundException
if no file with the givenname
can be found, orIIOException
if an error was thrown by the underlying image library.IllegalArgumentException
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getFormat
public Format getFormat()
Description copied from interface:GridCoverageReader
Returns the format handled by thisGridCoverageReader
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updateBounds
public void updateBounds()
Returns the layer bounds
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getMetadataNames
public String[] getMetadataNames()
Description copied from interface:GridCoverageReader
Returns the list of metadata keywords associated with the input source as a whole (not associated with any particular grid coverage). If no metadata is available, the array will be empty.- Specified by:
getMetadataNames
in interfaceGridCoverageReader
- Overrides:
getMetadataNames
in classAbstractGridCoverage2DReader
- Returns:
- The list of metadata keywords for the input source.
- See Also:
GridCoverageReader.getMetadataNames()
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getMetadataValue
public String getMetadataValue(String name)
Description copied from interface:GridCoverageReader
Retrieve the metadata value for a given metadata name.- Specified by:
getMetadataValue
in interfaceGridCoverageReader
- Overrides:
getMetadataValue
in classAbstractGridCoverage2DReader
- Parameters:
name
- Metadata keyword for which to retrieve metadata.- Returns:
- The metadata value for the given metadata name. Should be one of the name returned by
GridCoverageReader.getMetadataNames()
. - See Also:
GridCoverageReader.getMetadataValue(java.lang.String)
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getLayers
public List<Layer> getLayers()
fetch the WMS Layers used in this coverage.- Returns:
- the layers
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