org.deegree_impl.io.mapinfo
Class MapInfoDataSource

java.lang.Object
  org.deegree_impl.io.mapinfo.MapInfoDataSource

public class MapInfoDataSource

extends java.lang.Object

Version:

$Revision: 1.8 $

Author:

$author$

Field Summary

static java.lang.String	CLAUSE_BRUSH
static java.lang.String	CLAUSE_CENTER
static java.lang.String	CLAUSE_CHARSET
static java.lang.String	CLAUSE_COLUMNS
static java.lang.String	CLAUSE_DELIMETER
static java.lang.String	CLAUSE_INDEX
static java.lang.String	CLAUSE_PEN
static java.lang.String	CLAUSE_SMOOTH
static java.lang.String	CLAUSE_SYMBOL
static java.lang.String	CLAUSE_UNIQUE
static java.lang.String	CLAUSE_VERSION
private java.lang.String	filename
private GeometryFactory	geomFactory
private java.lang.String	hCharset
private java.util.ArrayList	hColumnsNames
private java.util.ArrayList	hColumnsTypes
private java.lang.String	hDelimeter
private java.util.ArrayList	hIndex
private java.util.ArrayList	hUnique
private java.lang.String	hVersion
private java.lang.String	line
private FeatureType	lineType
private FeatureType	pointType
private FeatureType	polygonType
static java.lang.String	TYPE_ARC
static java.lang.String	TYPE_ELLIPSE
static java.lang.String	TYPE_LINE
static java.lang.String	TYPE_NONE
static java.lang.String	TYPE_PLINE
static java.lang.String	TYPE_POINT
static java.lang.String	TYPE_RECT
static java.lang.String	TYPE_REGION
static java.lang.String	TYPE_ROUNDRECT
static java.lang.String	TYPE_TEXT

Constructor Summary

MapInfoDataSource(java.net.URL url)
Creates a new MapInfoDataSource object.

Method Summary

private void	addAttribute(java.lang.String type, java.lang.String token, java.util.ArrayList midValues)
private Feature	buildFeature(FeatureType featureType, Geometry geom, java.util.ArrayList attribs) Builds a complete Feature object using the given FeatureType, with the Geometry geom, and the given attributes.
private java.lang.String	clause(java.lang.String line) A 'Clause' is stored as a single string at the start of a line.
private java.lang.String	clause(java.lang.String line, char delimiter)
void	getFeatures(FeatureCollection collection, WFSQuery query) Loads features from the datasource into the passed collection, based on the passed filter.
FeatureType	getSchema() Retrieves the featureType that features extracted from this datasource will be created with.
private boolean	isShadingClause(java.lang.String line) Test whether the given line contains a known shading clause keyword (PEN, STYLE, etc.)
private Feature	readLineObject(java.io.BufferedReader mifReader, java.io.BufferedReader midReader) Reads Line information from the MIF stream
private java.util.ArrayList	readMid(java.io.BufferedReader midReader) Reads a single line of the given MID file stream, and returns a hashtable of the data in it, keyed byt he keys in the hColumns hash
private void	readMifHeader(java.io.BufferedReader mifReader) Reads the header from the given MIF file stream
private java.lang.String	readMifLine(java.io.BufferedReader reader) Reads the next line in the reader, ignoring lines which are nothing but whitespace.
protected java.util.ArrayList	readMifMid() Reads the MIF and MID files and returns a ArrayList of the Features they contain
private java.util.ArrayList	readMifMid(java.io.BufferedReader mifReader, java.io.BufferedReader midReader) Reads an entire MID/MIF file.
private Feature	readObject(java.io.BufferedReader mifReader, java.io.BufferedReader midReader) Reads a single MIF Object (Point, Line, Region, etc.) as a Feature
private Feature	readPLineObject(java.io.BufferedReader mifReader, java.io.BufferedReader midReader) Reads Multi-Line (PLine) information from the MIF stream
private Feature	readPointObject(java.io.BufferedReader mifReader, java.io.BufferedReader midReader) Reads Point information from the MIF stream
private Feature	readRegionObject(java.io.BufferedReader mifReader, java.io.BufferedReader midReader) Reads Region (Polygon) information from the MIF stream
private java.lang.String	remainder(java.lang.String line) returns the last word of the string
private java.lang.String	remainder(java.lang.String line, char delimiter)
private java.lang.String	setExtension(java.lang.String filename, java.lang.String ext)
private void	setUpFactories() This private method constructs the factories used to create the Feature, and Geometries as they are read It takes it's setup values from the value of the COLUMNS clause in the MIF file

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_NONE

public static final java.lang.String TYPE_NONE

See Also:

Constant Field Values

TYPE_POINT

public static final java.lang.String TYPE_POINT

See Also:

Constant Field Values

TYPE_LINE

public static final java.lang.String TYPE_LINE

See Also:

Constant Field Values

TYPE_PLINE

public static final java.lang.String TYPE_PLINE

See Also:

Constant Field Values

TYPE_REGION

public static final java.lang.String TYPE_REGION

See Also:

Constant Field Values

TYPE_ARC

public static final java.lang.String TYPE_ARC

See Also:

Constant Field Values

TYPE_TEXT

public static final java.lang.String TYPE_TEXT

See Also:

Constant Field Values

TYPE_RECT

public static final java.lang.String TYPE_RECT

See Also:

Constant Field Values

TYPE_ROUNDRECT

public static final java.lang.String TYPE_ROUNDRECT

See Also:

Constant Field Values

TYPE_ELLIPSE

public static final java.lang.String TYPE_ELLIPSE

See Also:

Constant Field Values

CLAUSE_SYMBOL

public static final java.lang.String CLAUSE_SYMBOL

See Also:

Constant Field Values

CLAUSE_PEN

public static final java.lang.String CLAUSE_PEN

See Also:

Constant Field Values

CLAUSE_SMOOTH

public static final java.lang.String CLAUSE_SMOOTH

See Also:

Constant Field Values

CLAUSE_CENTER

public static final java.lang.String CLAUSE_CENTER

See Also:

Constant Field Values

CLAUSE_BRUSH

public static final java.lang.String CLAUSE_BRUSH

See Also:

Constant Field Values

CLAUSE_VERSION

public static final java.lang.String CLAUSE_VERSION

See Also:

Constant Field Values

CLAUSE_CHARSET

public static final java.lang.String CLAUSE_CHARSET

See Also:

Constant Field Values

CLAUSE_DELIMETER

public static final java.lang.String CLAUSE_DELIMETER

See Also:

Constant Field Values

CLAUSE_UNIQUE

public static final java.lang.String CLAUSE_UNIQUE

See Also:

Constant Field Values

CLAUSE_INDEX

public static final java.lang.String CLAUSE_INDEX

See Also:

Constant Field Values

CLAUSE_COLUMNS

public static final java.lang.String CLAUSE_COLUMNS

See Also:

Constant Field Values

hColumnsNames

private java.util.ArrayList hColumnsNames

hColumnsTypes

private java.util.ArrayList hColumnsTypes

hIndex

private java.util.ArrayList hIndex

hUnique

private java.util.ArrayList hUnique

lineType

private FeatureType lineType

pointType

private FeatureType pointType

polygonType

private FeatureType polygonType

geomFactory

private GeometryFactory geomFactory

filename

private java.lang.String filename

hCharset

private java.lang.String hCharset

hDelimeter

private java.lang.String hDelimeter

hVersion

private java.lang.String hVersion

line

private java.lang.String line

Constructor Detail

MapInfoDataSource

public MapInfoDataSource(java.net.URL url)
                  throws java.net.MalformedURLException

Creates a new MapInfoDataSource object.

Parameters:

url -

Throws:

java.net.MalformedURLException

Method Detail

readMifMid

protected java.util.ArrayList readMifMid()
                                  throws java.lang.Exception

Reads the MIF and MID files and returns a ArrayList of the Features they contain

Returns:

a ArrayList of features?

Throws:

java.lang.Exception - if file doesn't exist or is not readable etc

setExtension

private java.lang.String setExtension(java.lang.String filename,
                                      java.lang.String ext)

Parameters:

filename -

ext -

Returns:

setUpFactories

private void setUpFactories()
                     throws java.lang.Exception

This private method constructs the factories used to create the Feature, and Geometries as they are read It takes it's setup values from the value of the COLUMNS clause in the MIF file

Throws:

java.lang.Exception

readMifMid

private java.util.ArrayList readMifMid(java.io.BufferedReader mifReader,
                                       java.io.BufferedReader midReader)
                                throws java.lang.Exception

Reads an entire MID/MIF file. (Two files, actually, separately opened)

Parameters:

mifReader - An opened BufferedReader to the MIF file.

midReader - An opened BufferedReader to the MID file.

Returns:

Throws:

java.lang.Exception

readMifHeader

private void readMifHeader(java.io.BufferedReader mifReader)
                    throws java.lang.Exception

Reads the header from the given MIF file stream

Parameters:

mifReader -

Throws:

java.lang.Exception

clause

private java.lang.String clause(java.lang.String line)

A 'Clause' is stored as a single string at the start of a line. This rips the clause name out of the given line.

Parameters:

line -

Returns:

clause

private java.lang.String clause(java.lang.String line,
                                char delimiter)

Parameters:

line -

delimiter -

Returns:

remainder

private java.lang.String remainder(java.lang.String line)

returns the last word of the string

Parameters:

line -

Returns:

remainder

private java.lang.String remainder(java.lang.String line,
                                   char delimiter)

Parameters:

line -

delimiter -

Returns:

readMifLine

private java.lang.String readMifLine(java.io.BufferedReader reader)
                              throws java.io.IOException,
                                     java.lang.Exception

Reads the next line in the reader, ignoring lines which are nothing but whitespace. Sets the global 'line' variable to the currently read line

Parameters:

reader -

Returns:

Throws:

java.io.IOException

java.lang.Exception

readObject

private Feature readObject(java.io.BufferedReader mifReader,
                           java.io.BufferedReader midReader)
                    throws java.lang.Exception

Reads a single MIF Object (Point, Line, Region, etc.) as a Feature

Parameters:

mifReader -

midReader -

Returns:

Throws:

java.lang.Exception

readPointObject

private Feature readPointObject(java.io.BufferedReader mifReader,
                                java.io.BufferedReader midReader)
                         throws java.lang.Exception

Reads Point information from the MIF stream

Parameters:

mifReader -

midReader -

Returns:

Throws:

java.lang.Exception

readLineObject

private Feature readLineObject(java.io.BufferedReader mifReader,
                               java.io.BufferedReader midReader)
                        throws java.lang.Exception

Reads Line information from the MIF stream

Parameters:

mifReader -

midReader -

Returns:

Throws:

java.lang.Exception

readPLineObject

private Feature readPLineObject(java.io.BufferedReader mifReader,
                                java.io.BufferedReader midReader)
                         throws java.lang.Exception

Reads Multi-Line (PLine) information from the MIF stream

Parameters:

mifReader -

midReader -

Returns:

Throws:

java.lang.Exception

readRegionObject

private Feature readRegionObject(java.io.BufferedReader mifReader,
                                 java.io.BufferedReader midReader)
                          throws java.lang.Exception

Reads Region (Polygon) information from the MIF stream

Parameters:

mifReader -

midReader -

Returns:

Throws:

java.lang.Exception

buildFeature

private Feature buildFeature(FeatureType featureType,
                             Geometry geom,
                             java.util.ArrayList attribs)
                      throws java.lang.Exception

Builds a complete Feature object using the given FeatureType, with the Geometry geom, and the given attributes.

Parameters:

featureType - The FeatureType to use to constuct the Feature

geom - The Geometry to use as the default Geometry

attribs - The attibutes to use as the Feature's attributes (Attributes must be set up in the FeatureType)

Returns:

A fully-formed Feature

Throws:

java.lang.Exception

readMid

private java.util.ArrayList readMid(java.io.BufferedReader midReader)
                             throws java.lang.Exception

Reads a single line of the given MID file stream, and returns a hashtable of the data in it, keyed byt he keys in the hColumns hash

Parameters:

midReader -

Returns:

Throws:

java.lang.Exception

addAttribute

private void addAttribute(java.lang.String type,
                          java.lang.String token,
                          java.util.ArrayList midValues)

Parameters:

type -

token -

midValues -

isShadingClause

private boolean isShadingClause(java.lang.String line)

Test whether the given line contains a known shading clause keyword (PEN, STYLE, etc.)

Parameters:

line -

Returns:

getFeatures

public void getFeatures(FeatureCollection collection,
                        WFSQuery query)
                 throws java.lang.Exception

Loads features from the datasource into the passed collection, based on the passed filter. Note that all data sources must support this method at a minimum.

Parameters:

collection - The collection to put the features into.

query - contains info about request of which features to retrieve.

Throws:

java.lang.Exception - For all data source errors.

getSchema

public FeatureType getSchema()

Retrieves the featureType that features extracted from this datasource will be created with.