Thread: [Geoserver-users] WFS-T exception

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Hi list!
I'am using GeoServer as WFS-T in order to draw features in PostGIS 
tables. My Web Client is OpenLayers and I am trying to draw some points. 
My background is a G_HYBRID_MAP image.
I did as following:

    * Created 3 empty postgis tables with MULTIPOINT, MULTILINESTRING,
      MULTIPOLYGON geometry types:

          * CREATE TABLE punto
            (
              gid serial NOT NULL,
              id integer,
              importo numeric,
              nome character varying(80),
              the_geom geometry,
              CONSTRAINT punto_pkey PRIMARY KEY (gid),
              CONSTRAINT enforce_dims_the_geom CHECK (ndims(the_geom) = 2),
              CONSTRAINT enforce_geotype_the_geom CHECK
            (geometrytype(the_geom) = 'MULTIPOINT'::text OR the_geom IS
            NULL),
              CONSTRAINT enforce_srid_the_geom CHECK (srid(the_geom) = -1)
            )
            WITHOUT OIDS;
            ALTER TABLE punto OWNER TO postgres;
          * CREATE TABLE linea
            (
              gid serial NOT NULL,
              id integer,
              importo numeric,
              nome character varying(80),
              the_geom geometry,
              CONSTRAINT linea_pkey PRIMARY KEY (gid),
              CONSTRAINT enforce_dims_the_geom CHECK (ndims(the_geom) = 2),
              CONSTRAINT enforce_geotype_the_geom CHECK
            (geometrytype(the_geom) = 'MULTILINESTRING'::text OR
            the_geom IS NULL),
              CONSTRAINT enforce_srid_the_geom CHECK (srid(the_geom) = -1)
            )
            WITHOUT OIDS;
            ALTER TABLE linea OWNER TO postgres;
          * CREATE TABLE poligono
            (
              gid serial NOT NULL,
              id integer,
              importo numeric,
              nome character varying(80),
              the_geom geometry,
              CONSTRAINT poligono_pkey PRIMARY KEY (gid),
              CONSTRAINT enforce_dims_the_geom CHECK (ndims(the_geom) = 2),
              CONSTRAINT enforce_geotype_the_geom CHECK
            (geometrytype(the_geom) = 'MULTIPOLYGON'::text OR the_geom
            IS NULL),
              CONSTRAINT enforce_srid_the_geom CHECK (srid(the_geom) = -1)
            )
            WITHOUT OIDS;
            ALTER TABLE poligono OWNER TO postgres;

    * Created 3 empty features in GeoServer using SRS 4326
    * Created the following html page:
          o <html xmlns="http://www.w3.org/1999/xhtml">
              <head>
                <link rel="stylesheet" href="/geoserver/style.css"
            type="text/css" />
                <style type="text/css">
                    body {
                        margin: 1em;
                    }
                    #map {
                        width: 800px;
                        height: 475px;
                        border: 1px solid black;
                    }
                </style>
                <script src="openlayers/OpenLayers.js"></script>
                <script
            src='http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAjpkAC9ePGem0lIq5XcMiuhR_wWLPFku8Ix9i2SXYRVK3e45q1BQUd_beF8dtzKET_EteAjPdGDwqpQ'></script>
                <script type="text/javascript">
                    OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;

                    var map;
                    function init(){
                        map = new OpenLayers.Map('map');

                        var gsat = new OpenLayers.Layer.Google(
                            "Google Sattelite",
                            {type: G_HYBRID_MAP}
                        );

                        var punto = new OpenLayers.Layer.WFS(
                            "Punto",
                            "/geoserver/wfs",
                            {typename: 'topp:punto'},
                            {
                                typename: 'punto',
                                featureNS: 'http://www.openplans.org/topp',
                                extractAttributes: false
                            }
                        );

                        punto.style.strokeColor = "#0000ff";

                        map.addLayers([gsat, punto]);

                        var panel = new OpenLayers.Control.Panel(
                            {displayClass: 'olControlEditingToolbar'}
                        );

                        var drawPoint = new OpenLayers.Control.DrawFeature(
                            punto, OpenLayers.Handler.Point,
                            {displayClass: 'olControlDrawFeaturePoint'}
                        );
                        drawPoint.featureAdded = function(feature) {
                            feature.layer.eraseFeatures([feature]);
                            // cast to multipoint
                            feature.geometry = new
            OpenLayers.Geometry.MultiPoint(
                                feature.geometry
                            );
                            feature.style.strokeColor = "#0000ff";
                            feature.state = OpenLayers.State.INSERT;
                            feature.layer.drawFeature(feature);
                        }

                        panel.addControls(
                            [new OpenLayers.Control.Navigation(), drawPoint]
                        );

                        map.addControl(panel);
                        map.addControl(new
            OpenLayers.Control.LayerSwitcher());

                        map.zoomToExtent(
                            new
            OpenLayers.Bounds(12.454,36.591,15.590,38.351)
                        );
                    }
                </script>
              </head>
              <body onload="init()">
                <h3>GeoCaronte Demo</h3>

                <a href="#" onclick="map.layers[1].commit();return
            false">Salva Elementi Poligonali</a>
                <div id="map"></div>
              </body>
            </html>

 When I try to INSERT my edited points I have an error that depends by 
geometry types mismatch. 

The error is:

   <ServiceException>

      java.lang.RuntimeException: Parsing failed for the_geom: 
java.lang.ClassCastException: com.vividsolutions

.jts.geom.MultiPoint cannot be cast to com.vividsolutions.jts.geom.Point

Parsing failed for the_geom: java.lang.ClassCastException: 
com.vividsolutions.jts.geom.MultiPoint cannot

 be cast to com.vividsolutions.jts.geom.Point

com.vividsolutions.jts.geom.MultiPoint cannot be cast to 
com.vividsolutions.jts.geom.Point

</ServiceException></ServiceExceptionReport>

Why? How can i do?

PS: Is it right to use 4326 in order to edit new features, or I must use 
900913 ?

Thanks a lot!

-- 
Ing. Fabio D'Ovidio

INOVA Open Solutions s.r.l.
Web : http://www.inovaos.it
Tel.: 081 197 57 600
mail: fab...@gm...

Thread: [Geoserver-users] WFS-T exception

geoserver-users