com.esri.gpt.control.georss
Class GeometryService

java.lang.Object
  com.esri.gpt.control.georss.GeometryService

public class GeometryService
extends Object

Geometry service.

Constructor Summary

GeometryService(String URL)
Creates instance of the service object.

Method Summary

static GeometryService	createDefaultInstance() Creates instance as configured in gpt.xml.
protected Map<String,List<Envelope>>	createEnvMap(List<Envelope> envelopes, String defWkid) Creates WKID to envelope mapping.
protected String	enc(String str) Encodes a string.
protected String	envToJson(Envelope env, String wkid) Turns a single envelope into a JSON object.
protected String	envToJson(List<Envelope> envList, String wkid) Turns list of envelopes into a JSON object.
List<Envelope>	project(List<Envelope> envelopes, String outSR) Performs projection.
protected List<Envelope>	project(List<Envelope> inEnv, String inSR, String outSR) Performs projection.
protected Envelope	readEnvelope(org.json.JSONObject geom) Read envelope from the JSON object.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometryService

public GeometryService(String URL)

Creates instance of the service object.

Parameters:

URL - URL to the service

Method Detail

createDefaultInstance

public static GeometryService createDefaultInstance()

Creates instance as configured in gpt.xml.

Returns:

instance of the service

project

public List<Envelope> project(List<Envelope> envelopes,
                              String outSR)
                       throws org.json.JSONException,
                              HttpClientException,
                              IOException

Performs projection.

Parameters:

envelopes - list of envelopes to project

outSR - output spatial reference (WKID)

Returns:

list of projected envelopes

Throws:

org.json.JSONException - if reading response as JSON fails

HttpClientException - if HTTP communication fails

IOException - if data transmission fails

project

protected List<Envelope> project(List<Envelope> inEnv,
                                 String inSR,
                                 String outSR)
                          throws org.json.JSONException,
                                 HttpClientException,
                                 IOException

Performs projection.

Parameters:

inEnv - list of envelopes

inSR - input spatial reference (WKID)

outSR - output spatial reference (WKID)

Returns:

list of projected envelopes

Throws:

org.json.JSONException - if reading response as JSON fails

HttpClientException - if HTTP communication fails

IOException - if data transmission fails

readEnvelope

protected Envelope readEnvelope(org.json.JSONObject geom)
                         throws org.json.JSONException

Read envelope from the JSON object.

Parameters:

geom - JSON object representing envelope

Returns:

envelope

Throws:

org.json.JSONException - if input object is not a valid envelope

createEnvMap

protected Map<String,List<Envelope>> createEnvMap(List<Envelope> envelopes,
                                                  String defWkid)

Creates WKID to envelope mapping.

Parameters:

envelopes - envelopes

defWkid - default WKID

Returns:

mapping

envToJson

protected String envToJson(List<Envelope> envList,
                           String wkid)

Turns list of envelopes into a JSON object.

Parameters:

envList - list of envelopes

wkid - WKID

Returns:

string representation of JSON object

envToJson

protected String envToJson(Envelope env,
                           String wkid)

Turns a single envelope into a JSON object.

Parameters:

env - envelope

wkid - WKID

Returns:

string representation of JSON object

enc

protected String enc(String str)

Encodes a string.

Parameters:

str - string to encode

Returns:

encoded string