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13693261870

2024-11-13 eb40365c9cffb2269fd3cbd31b050c33455bc84a

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package com.moon.server.helper;
 
import com.moon.server.entity.all.StaticData;
import com.moon.server.entity.ctrl.MarkJsonEntity;
import com.moon.server.entity.ctrl.ShpRecordEntity;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.gdal.ogr.*;
import org.gdal.osr.SpatialReference;
 
import java.io.File;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
@SuppressWarnings("ALL")
public class ShpHelper {
    private final static Log log = LogFactory.getLog(ShpHelper.class);
 
    public static ShpRecordEntity readShpFirstRecord(String filePath) {
        Driver driver = null;
        DataSource dataSource = null;
        Layer layer = null;
        try {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return null;
            }
 
            dataSource = driver.Open(filePath);
            if (null == dataSource) {
                return null;
            }
 
            layer = dataSource.GetLayer(0);
            if (layer.GetFeatureCount() < 1) {
                return null;
            }
 
            SpatialReference spatialReference = layer.GetSpatialRef();
            String csid = spatialReference.GetAttrValue("AUTHORITY", 1);
 
            Feature feature = layer.GetFeature(0);
            String wkt = feature.GetGeometryRef().ExportToWkt();
 
            return new ShpRecordEntity(wkt, csid);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        } finally {
            GdbHelper.delete(layer, dataSource, driver);
        }
    }
 
    public static List<MarkJsonEntity> readShpForMarks(String filePath) {
        Driver driver = null;
        DataSource dataSource = null;
        Layer layer = null;
        try {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return null;
            }
 
            dataSource = driver.Open(filePath);
            if (null == dataSource) {
                return null;
            }
 
            layer = dataSource.GetLayer(0);
            if (layer.GetFeatureCount() == 0) {
                return null;
            }
 
            Map<Integer, Field> fields = getShpFields(layer);
 
            return setMarkJsonEntity(layer, fields);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        } finally {
            GdbHelper.delete(layer, dataSource, driver);
        }
    }
 
    private static Map<Integer, Field> getShpFields(Layer layer) {
        FeatureDefn featureDefn = layer.GetLayerDefn();
 
        Map<Integer, Field> fields = new HashMap(3);
        for (int i = 0, count = featureDefn.GetFieldCount(); i < count; i++) {
            try {
                FieldDefn fieldDefn = featureDefn.GetFieldDefn(i);
                Field field = MarkJsonEntity.class.getDeclaredField(fieldDefn.GetName());
                field.setAccessible(true);
 
                fields.put(i, field);
            } catch (Exception e) {
                //
            }
        }
 
        return fields;
    }
 
    private static List<MarkJsonEntity> setMarkJsonEntity(Layer layer, Map<Integer, Field> fieldMap) throws Exception {
        List<MarkJsonEntity> list = new ArrayList<>();
        for (int i = 0; i < layer.GetFeatureCount(); i++) {
            Feature f = layer.GetFeature(i);
 
            MarkJsonEntity me = new MarkJsonEntity(i + 1L);
            for (Integer key : fieldMap.keySet()) {
                Field field = fieldMap.get(key);
                GdbHelper.setValue(me, f, field, key);
            }
            me.setWkt(f.GetGeometryRef().ExportToWkt());
 
            list.add(me);
        }
 
        return list;
    }
 
    public static String createShp(List<MarkJsonEntity> list, String path, String type) {
        Driver driver = null;
        DataSource dataSource = null;
        Layer layer = null;
        try {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return null;
            }
 
            String filePath = path + File.separator + type.toLowerCase() + ".shp";
            // DataSource ds = driver.Open(filePath, 0)
            dataSource = driver.CreateDataSource(filePath, null);
            if (null == dataSource) {
                return null;
            }
 
            int geoType = getGeometryType(type);
            layer = dataSource.CreateLayer(type.toLowerCase(), GeoHelper.sr104903, geoType);
            if (null == layer) {
                return null;
            }
 
            List<Field> fields = new ArrayList<>();
            GdbHelper.getFields(MarkJsonEntity.class, fields, StaticData.MARK_EXCLUDE_FIELDS);
            GdbHelper.addLayerField(layer, fields);
 
            FeatureDefn featureDefn = layer.GetLayerDefn();
            for (MarkJsonEntity t : list) {
                Feature f = new Feature(featureDefn);
                GdbHelper.setFeatureData(f, fields, t);
 
                Geometry geo = Geometry.CreateFromWkt(t.getWkt());
                f.SetGeometry(geo);
 
                layer.CreateFeature(f);
            }
 
            return filePath;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return null;
        } finally {
            GdbHelper.delete(layer, dataSource, driver);
        }
    }
 
    private static int getGeometryType(String type) {
        switch (type) {
            case "POINT":
                return ogr.wkbPoint;
            case "LINESTRING":
                return ogr.wkbLineString;
            case "POLYGON":
                return ogr.wkbPolygon;
            default:
                return ogr.wkbUnknown;
        }
    }
 
    public static <T> List<T> readData(Class clazz, String filePath, boolean isTransform) {
        List<T> list = new ArrayList<>();
 
        Driver driver = null;
        DataSource dataSource = null;
        try {
            driver = ogr.GetDriverByName("ESRI shapefile");
            if (null == driver) {
                return list;
            }
 
            dataSource = driver.Open(filePath);
            if (null == dataSource) {
                return list;
            }
 
            Layer layer = dataSource.GetLayer(0);
            GdbHelper.readLayer(clazz, layer, list, isTransform);
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        } finally {
            GdbHelper.delete(dataSource, driver);
        }
 
        return list;
    }
}