| @@ -5,7 +5,7 @@ |
| */ |
| package m.example.gis_geotools; |
| |
| -import com.vividsolutions.jts.geom.Geometry; |
| +//import com.vividsolutions.jts.geom.Geometry; |
| import csip.ModelDataService; |
| import static csip.ModelDataService.EXEC_OK; |
| import csip.ServiceException; |
| @@ -19,12 +19,12 @@ |
| import org.apache.commons.io.IOUtils; |
| import org.codehaus.jettison.json.JSONException; |
| import org.codehaus.jettison.json.JSONObject; |
| -import org.geotools.feature.FeatureCollection; |
| -import org.geotools.feature.FeatureIterator; |
| -import org.geotools.geojson.feature.FeatureJSON; |
| -import org.geotools.geojson.geom.GeometryJSON; |
| -import org.opengis.feature.Feature; |
| -import org.opengis.feature.simple.SimpleFeature; |
| +//import org.geotools.feature.FeatureCollection; |
| +//import org.geotools.feature.FeatureIterator; |
| +//import org.geotools.geojson.feature.FeatureJSON; |
| +//import org.geotools.geojson.geom.GeometryJSON; |
| +//import org.opengis.feature.Feature; |
| +//import org.opengis.feature.simple.SimpleFeature; |
| |
| /** |
| * Basic usage of the GeoTools Geometry and Feature objects. |
| @@ -48,111 +48,111 @@ |
| */ |
| @Name("GIS_GeoTools") |
| @Description("An example of how to read in geometries or featurecollections using the geotools libraries. Also demonstrates proper GeoJSON, error passing with ModelDataServices and SQL differences between PostGIS and MsSQL") |
| -@Path("m/gis_geotools/1.0") |
| +//@Path("m/gis_geotools/1.0") |
| public class V1_0 extends ModelDataService { |
| |
| - Geometry aoa_geometry; |
| - JSONObject aoa_input_geometry; |
| - |
| - @Override |
| - // NOTE: Changed "Exception" to csip.ServiceException. (It's considered bad form to throw a generic exception in Java) |
| - // We will check the validity of the param array, if it is present, and return a distinct message identifying what is |
| - // missing, if necessary, when we throw a csip.ServiceException. This is much better than just throwing the exception |
| - // with no message at all. |
| - protected void preProcess() throws csip.ServiceException { |
| - Map<String, JSONObject> inputParams = getParamMap(); |
| - if (null != inputParams) { |
| - this.aoa_input_geometry = inputParams.get("aoa_geometry"); |
| - if (null == this.aoa_input_geometry) { |
| - throw new csip.ServiceException("No 'aoa_geometry' item was found in the JSON input. Please specify an 'aoa_geometry' ."); |
| - } |
| - } else { |
| - throw new csip.ServiceException(" No JSON input parameters were found. Please specify some input."); |
| - } |
| - } |
| - |
| - @Override |
| - // NOTE: Notice the usage of the ability to return an error message string via the process() routine here, instead of throwing a generic exeption. |
| - // This feature gives the programmer the ability to return very helpful messages to the client of this service. This makes debugging much |
| - // simpler when such features are used to their full extent. |
| - // |
| - // Also NOTE: This feature will soon be deprecated and using the csip.ServiceException only will be the prefered pathway once the output of the |
| - // stack traces associated with an exception are moved to a different section of the Metadata of the result rather than the body of the |
| - // result. |
| - |
| - protected String process() throws ServiceException { |
| - String ret_val = EXEC_OK; |
| - |
| - GeometryJSON geoJSON = new GeometryJSON(); |
| - try { |
| - if (this.aoa_input_geometry.has("features")) { |
| - FeatureJSON featureJSON = new FeatureJSON(); |
| - |
| - FeatureCollection inputFeatures = featureJSON.readFeatureCollection(this.aoa_input_geometry.toString()); |
| - FeatureIterator tFeatures = inputFeatures.features(); |
| - int count = 1; |
| - while (tFeatures.hasNext()) { |
| - Feature tFeature = tFeatures.next(); |
| - this.aoa_geometry = (Geometry) ((SimpleFeature) tFeature).getAttribute("geometry"); |
| - Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "Feature geometry " + count + " recieved was: {0}", this.aoa_geometry.toText()); |
| - count++; |
| - // Do something with this particular feature here...OR just grab the first one if only one was specified. |
| - // This particular code assumes only one was specified, but can easily be altered to send more than one |
| - // and do something with each.... |
| - |
| - } |
| - } else { |
| - if ( this.aoa_input_geometry.has("type")){ //Try to uncover if this is a "Feature" or a geometry object |
| - if ( this.aoa_input_geometry.getString("type").equalsIgnoreCase("feature")){ |
| - FeatureJSON featureJSON = new FeatureJSON(); |
| - Feature tFeature = featureJSON.readFeature(this.aoa_input_geometry.toString()); |
| - this.aoa_geometry = (Geometry) ((SimpleFeature) tFeature).getAttribute("geometry"); |
| - // Here we could pull out the Feature's properies as well... |
| - Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "This Feature''s Id is: {0}", ((SimpleFeature) tFeature).getID()); |
| - Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "This Feature''s name is: {0}", ((SimpleFeature) tFeature).getAttribute("name")); |
| - |
| - //NOTE: For some reason, property values that are arrays (as in the example JSON), don't get read, so watch out for this! |
| - Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "This Feature''s adjustment factor is: {0}", ((SimpleFeature) tFeature).getAttribute("AdjustmentFactor")); |
| - |
| - } |
| - else{ //Try to read the GeoJSON geometry object |
| - this.aoa_geometry = geoJSON.read(IOUtils.toInputStream(this.aoa_input_geometry.toString())); |
| - } |
| - } |
| - else{ |
| - |
| - } |
| - } |
| - |
| - // TODO: Add your code here to do something with the geometry(ies) you read in. |
| - // For instance: See code lines below: (NOTE: The .toText() funciton of "Geometry" returns WKT..) |
| - // Log the WKT of the input. |
| - Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "Last aoa_geometry value recieved was: {0}", this.aoa_geometry.toText()); |
| - |
| - String Query; |
| - // PostGIS specific SQL statement below to calculate area in acres. |
| - Query = "SELECT st_area(st_transform(ST_PolygonFromText('" + this.aoa_geometry.toText() + "', 4326),3541))/43560 as areaInAcres; "; |
| - |
| - // MsSQL specific SQL statement below to calculate area in acres. (NOTE: Assumes point rotation is openGIS compliant, i.e. non-ESRI Shapefile) |
| - Query = "SELECT geography::STGeomFromText('" + this.aoa_geometry.toText() + "', 4326).MakeValid().STArea() / 4046.86 as areaInAcres; "; |
| - |
| - // MsSQL specific SQL statement below to calculate area in acres. (NOTE: Assumes point rotation is non-openGIS compliant, i.e. ESRI Shapefile) |
| - Query = "SELECT geography::STGeomFromText('" + this.aoa_geometry.toText() + "', 4326).ReorientObject().MakeValid().STArea() / 4046.86 as areaInAcres; "; |
| - |
| - } catch (IOException ex) { |
| - Logger.getLogger(V1_0.class.getName()).log(Level.SEVERE, "Cannot parse the input GeoJSON into valid GIS entities: ", ex); |
| - // This will return a useable error message to the user via the process() return value, rather than a exception stacktrace, with no explanations. |
| - ret_val = "Cannot parse the input GeoJSON into valid GIS entities: " + ex.getMessage(); |
| - // Or |
| - //throw new csip.ServiceException( ex ); |
| - } catch (JSONException ex) { |
| - Logger.getLogger(V1_0.class.getName()).log(Level.SEVERE, "Cannot parse the aoa_geometry geometry type. Please check your syntax. ", ex); |
| - ret_val = "Cannot parse the aoa_geometry geometry type. Please check your syntax. " + ex.getMessage(); |
| - // Or |
| - //throw new csip.ServiceException( ex ); |
| - } |
| - |
| - return ret_val; |
| - } |
| +// Geometry aoa_geometry; |
| +// JSONObject aoa_input_geometry; |
| +// |
| +// @Override |
| +// // NOTE: Changed "Exception" to csip.ServiceException. (It's considered bad form to throw a generic exception in Java) |
| +// // We will check the validity of the param array, if it is present, and return a distinct message identifying what is |
| +// // missing, if necessary, when we throw a csip.ServiceException. This is much better than just throwing the exception |
| +// // with no message at all. |
| +// protected void preProcess() throws csip.ServiceException { |
| +// Map<String, JSONObject> inputParams = getParamMap(); |
| +// if (null != inputParams) { |
| +// this.aoa_input_geometry = inputParams.get("aoa_geometry"); |
| +// if (null == this.aoa_input_geometry) { |
| +// throw new csip.ServiceException("No 'aoa_geometry' item was found in the JSON input. Please specify an 'aoa_geometry' ."); |
| +// } |
| +// } else { |
| +// throw new csip.ServiceException(" No JSON input parameters were found. Please specify some input."); |
| +// } |
| +// } |
| +// |
| +// @Override |
| +// // NOTE: Notice the usage of the ability to return an error message string via the process() routine here, instead of throwing a generic exeption. |
| +// // This feature gives the programmer the ability to return very helpful messages to the client of this service. This makes debugging much |
| +// // simpler when such features are used to their full extent. |
| +// // |
| +// // Also NOTE: This feature will soon be deprecated and using the csip.ServiceException only will be the prefered pathway once the output of the |
| +// // stack traces associated with an exception are moved to a different section of the Metadata of the result rather than the body of the |
| +// // result. |
| +// |
| +// protected String process() throws ServiceException { |
| +// String ret_val = EXEC_OK; |
| +// |
| +// GeometryJSON geoJSON = new GeometryJSON(); |
| +// try { |
| +// if (this.aoa_input_geometry.has("features")) { |
| +// FeatureJSON featureJSON = new FeatureJSON(); |
| +// |
| +// FeatureCollection inputFeatures = featureJSON.readFeatureCollection(this.aoa_input_geometry.toString()); |
| +// FeatureIterator tFeatures = inputFeatures.features(); |
| +// int count = 1; |
| +// while (tFeatures.hasNext()) { |
| +// Feature tFeature = tFeatures.next(); |
| +// this.aoa_geometry = (Geometry) ((SimpleFeature) tFeature).getAttribute("geometry"); |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "Feature geometry " + count + " recieved was: {0}", this.aoa_geometry.toText()); |
| +// count++; |
| +// // Do something with this particular feature here...OR just grab the first one if only one was specified. |
| +// // This particular code assumes only one was specified, but can easily be altered to send more than one |
| +// // and do something with each.... |
| +// |
| +// } |
| +// } else { |
| +// if ( this.aoa_input_geometry.has("type")){ //Try to uncover if this is a "Feature" or a geometry object |
| +// if ( this.aoa_input_geometry.getString("type").equalsIgnoreCase("feature")){ |
| +// FeatureJSON featureJSON = new FeatureJSON(); |
| +// Feature tFeature = featureJSON.readFeature(this.aoa_input_geometry.toString()); |
| +// this.aoa_geometry = (Geometry) ((SimpleFeature) tFeature).getAttribute("geometry"); |
| +// // Here we could pull out the Feature's properies as well... |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "This Feature''s Id is: {0}", ((SimpleFeature) tFeature).getID()); |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "This Feature''s name is: {0}", ((SimpleFeature) tFeature).getAttribute("name")); |
| +// |
| +// //NOTE: For some reason, property values that are arrays (as in the example JSON), don't get read, so watch out for this! |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "This Feature''s adjustment factor is: {0}", ((SimpleFeature) tFeature).getAttribute("AdjustmentFactor")); |
| +// |
| +// } |
| +// else{ //Try to read the GeoJSON geometry object |
| +// this.aoa_geometry = geoJSON.read(IOUtils.toInputStream(this.aoa_input_geometry.toString())); |
| +// } |
| +// } |
| +// else{ |
| +// |
| +// } |
| +// } |
| +// |
| +// // TODO: Add your code here to do something with the geometry(ies) you read in. |
| +// // For instance: See code lines below: (NOTE: The .toText() funciton of "Geometry" returns WKT..) |
| +// // Log the WKT of the input. |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.INFO, "Last aoa_geometry value recieved was: {0}", this.aoa_geometry.toText()); |
| +// |
| +// String Query; |
| +// // PostGIS specific SQL statement below to calculate area in acres. |
| +// Query = "SELECT st_area(st_transform(ST_PolygonFromText('" + this.aoa_geometry.toText() + "', 4326),3541))/43560 as areaInAcres; "; |
| +// |
| +// // MsSQL specific SQL statement below to calculate area in acres. (NOTE: Assumes point rotation is openGIS compliant, i.e. non-ESRI Shapefile) |
| +// Query = "SELECT geography::STGeomFromText('" + this.aoa_geometry.toText() + "', 4326).MakeValid().STArea() / 4046.86 as areaInAcres; "; |
| +// |
| +// // MsSQL specific SQL statement below to calculate area in acres. (NOTE: Assumes point rotation is non-openGIS compliant, i.e. ESRI Shapefile) |
| +// Query = "SELECT geography::STGeomFromText('" + this.aoa_geometry.toText() + "', 4326).ReorientObject().MakeValid().STArea() / 4046.86 as areaInAcres; "; |
| +// |
| +// } catch (IOException ex) { |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.SEVERE, "Cannot parse the input GeoJSON into valid GIS entities: ", ex); |
| +// // This will return a useable error message to the user via the process() return value, rather than a exception stacktrace, with no explanations. |
| +// ret_val = "Cannot parse the input GeoJSON into valid GIS entities: " + ex.getMessage(); |
| +// // Or |
| +// //throw new csip.ServiceException( ex ); |
| +// } catch (JSONException ex) { |
| +// Logger.getLogger(V1_0.class.getName()).log(Level.SEVERE, "Cannot parse the aoa_geometry geometry type. Please check your syntax. ", ex); |
| +// ret_val = "Cannot parse the aoa_geometry geometry type. Please check your syntax. " + ex.getMessage(); |
| +// // Or |
| +// //throw new csip.ServiceException( ex ); |
| +// } |
| +// |
| +// return ret_val; |
| +// } |
| |
| } |