Examples of org.geotools.data.DataSourceException

org.geotools.data.DataSourceException
Thrown when there is an error in a datasource.
This class was used back in Java 1.3 before the initCause() method was available for IOException. Since this class is used to pass on problems from external services, providing the root cause is important.
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        connFact.setLogin(dbUser, dbPasswd);
        ConnectionPool pool = null;
        try {
            pool = connFact.getConnectionPool();
        } catch (SQLException e) {
            throw new DataSourceException("Could not create connection", e);
        }


        LineMergerPostgisDataStore dataStore = null;
        if (dbSchema == null && namespace == null) {
            dataStore = new LineMergerPostgisDataStore(pool, params);

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            SimpleFeatureType schema = (SimpleFeatureType) getFeatureType(info);
            try {
                if (!CRS.equalsIgnoreMetadata(resultCRS, schema.getCoordinateReferenceSystem()))
                    schema = FeatureTypes.transform(schema, resultCRS);
            } catch (Exception e) {
                throw new DataSourceException(
                        "Problem forcing CRS onto feature type", e);
            }


            //
            // versioning
            //
            try {
                // only support versioning if on classpath
                if (VERSIONING_FS != null && GS_VERSIONING_FS != null && VERSIONING_FS.isAssignableFrom( fs.getClass() ) ) {
                    //class implements versioning, reflectively create the versioning wrapper
                    try {
                    Method m = GS_VERSIONING_FS.getMethod( "create", VERSIONING_FS, 
                        SimpleFeatureType.class, Filter.class, CoordinateReferenceSystem.class, int.class );
                    return (FeatureSource) m.invoke(null, fs, schema, info.getFilter(), 
                        resultCRS, info.getProjectionPolicy().getCode());
                    }
                    catch( Exception e ) {
                        throw new DataSourceException(
                                "Creation of a versioning wrapper failed", e);
                    }
                }
            } catch( ClassCastException e ) {
                //fall through

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     */
    public int lockFeatures(Query query) throws IOException {
        if (source instanceof FeatureLocking) {
            return ((FeatureLocking<SimpleFeatureType, SimpleFeature>) source).lockFeatures(query);
        } else {
            throw new DataSourceException("FeatureTypeConfig does not supports locking");
        }
    }

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                defQuery.setSortBy(query.getSortBy());
            }


            return defQuery;
        } catch (Exception ex) {
            throw new DataSourceException(
                "Could not restrict the query to the definition criteria: " + ex.getMessage(), ex);
        }
    }

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        try {
            if (definitionQuery != Filter.INCLUDE) {
                newFilter = ff.and(definitionQuery, filter);
            }
        } catch (Exception ex) {
            throw new DataSourceException("Can't create the definition filter", ex);
        }


        return newFilter;
    }

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        try {
            //this is the raw "unprojected" feature collection
            FeatureCollection<SimpleFeatureType, SimpleFeature> fc = source.getFeatures(newQuery);
            return applyProjectionPolicies(targetCRS, fc);
        } catch (Exception e) {
            throw new DataSourceException(e);
        }
    }

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            DefaultQuery reprojectedQuery = new DefaultQuery(query);
            reprojectedQuery.setFilter(reprojectedFilter);
            return reprojectedQuery;
        } catch(Exception e) {
            throw new DataSourceException("Had troubles handling filter reprojection...", e);
        }
    }

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                internalPyramidLevel++;
            }


        } catch (SeException se) {
            throw new DataSourceException(se);
        }
    }

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                LOGGER.log(Level.SEVERE, dse.getLocalizedMessage(), dse);
                throw dse;
            } catch (RuntimeException ex) {
                this.hasNextAlreadyCalled = true;
                close();
                throw new DataSourceException("Fetching row:" + ex.getMessage(), ex);
            }
        }


        boolean hasNext = this.currentRow != null;
        if (!hasNext) {

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     * 
     * @throws IOException
     */
    public void next() throws IOException {
        if (this.currentRow == null) {
            throw new DataSourceException("There are no more rows");
        }


        this.hasNextAlreadyCalled = false;
    }

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