Package org.geotools.data.property

Class PropertyFeatureReader

Object

PropertyFeatureReader

All Implemented Interfaces:

Closeable, AutoCloseable, FeatureReader<SimpleFeatureType,SimpleFeature>

public class PropertyFeatureReader
extends Object
implements FeatureReader<SimpleFeatureType,SimpleFeature>

Read a property file directly.

This implementation does not perform any filtering or processing; it leaves that up to wrappers to manipulate the content into the format or projection requested by the user.

The content of this file should start with a the property "_" with the value being the typeSpec describing the featureType. Thereafter each line will should have a FeatureID as the property and the attributes as the value separated by | characters.

 
 _=id:Integer|name:String|geom:Geometry
 fid1=1|Jody|well known text
 fid2=2|Brent|well known text
 fid3=3|Dave|well known text
 
 

Many values may be represented by a special tag: . An empty element: || is interpreted as the empty string:

  
  fid4=4|| -> Feature( id=2, name="", geom=null )
  
 

Since:

8.0

Author:

Jody Garnett (LISAsoft), Torben Barsballe (Boundless)

Constructor Summary

Constructors

Constructor	Description
PropertyFeatureReader(String namespace, File file)
PropertyFeatureReader(String namespace, File file, GeometryFactory geometryFactory)

Method Summary

Modifier and Type	Method	Description
void	close()	Be sure to call close when you are finished with this reader; as it must close the file it has open.
SimpleFeatureType	getFeatureType()	Return the FeatureType this reader has been configured to create.
boolean	hasNext()	Check if additional content is available.
SimpleFeature	next()	Grab the next feature from the property file.
Object	read(int index)	Read attribute in position marked by index.

Methods inherited from class Object

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

Constructor Detail

PropertyFeatureReader

public PropertyFeatureReader(String namespace,
                             File file)
                      throws IOException

Throws:

IOException

PropertyFeatureReader

public PropertyFeatureReader(String namespace,
                             File file,
                             GeometryFactory geometryFactory)
                      throws IOException

Throws:

IOException

Method Detail

getFeatureType

public SimpleFeatureType getFeatureType()

Description copied from interface: FeatureReader

Return the FeatureType this reader has been configured to create.

Specified by:

getFeatureType in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

the FeatureType of the Features this FeatureReader will create.

next

public SimpleFeature next()
                   throws IOException,
                          NoSuchElementException

Grab the next feature from the property file.

Specified by:

next in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

feature

Throws:

NoSuchElementException - Check hasNext() to avoid reading off the end of the file

IOException - If an error occurs reading the Feature.

read

public Object read(int index)
            throws IOException,
                   ArrayIndexOutOfBoundsException

Read attribute in position marked by index.

Parameters:

index - Attribute position to read

Returns:

Value for the attribtue in position index

Throws:

IOException

ArrayIndexOutOfBoundsException

hasNext

public boolean hasNext()
                throws IOException

Check if additional content is available.

Specified by:

hasNext in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Returns:

true if additional content is available

Throws:

IOException - If an error occurs determining if there are more Features.

close

public void close()
           throws IOException

Be sure to call close when you are finished with this reader; as it must close the file it has open.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface FeatureReader<SimpleFeatureType,SimpleFeature>

Throws:

IOException - if an I/O error occurs