1

13693261870

2022-12-20 f31782b273aeb8752b25d5467502e8ea38e083c7

 src/main/java/com/lf/server/helper/GdbHelper.java

@@ -1,9 +1,13 @@
package com.lf.server.helper;

import com.lf.server.entity.all.BaseGeoEntity;
import com.lf.server.entity.all.StaticData;
import com.lf.server.mapper.all.GeomBaseMapper;
import com.lf.server.service.all.BaseQueryService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.gdal.ogr.*;
import org.gdal.osr.SpatialReference;

import java.lang.reflect.Field;
import java.sql.Timestamp;
@@ -184,7 +188,7 @@
    /**
     * 获取字段映射
     */
    private static <T> void getFieldMapper(Class clazz, Layer layer, Map<Integer, Field> map) {
    private static void getFieldMapper(Class clazz, Layer layer, Map<Integer, Field> map) {
        try {
            FeatureDefn fd = layer.GetLayerDefn();
            for (int i = 0, count = fd.GetFieldCount(); i < count; i++) {
@@ -204,7 +208,7 @@
                }
            }

            if (OBJECT != clazz.getSuperclass().getName()) {
            if (!OBJECT.equals(clazz.getSuperclass().getName())) {
                getFieldMapper(clazz.getSuperclass(), layer, map);
            }
        } catch (Exception ex) {
@@ -318,4 +322,232 @@

        return Timestamp.valueOf(localDateTime);
    }

    /**
     * 创建GDB
     */
    public static void createGdb(String filePath,  Map<String, List<?>> map) {
        Driver driver = null;
        DataSource dataSource = null;
        try {
            driver = ogr.GetDriverByName("FileGDB");
            if (null == driver) {
                return;
            }
            dataSource = driver.CreateDataSource(filePath, null);
            if (null == dataSource) {
                return;
            }

            for (String key : map.keySet()) {
                Layer layer = null;
                try {
                    GeomBaseMapper baseMapper = ClassHelper.getGeoBaseMapper(key);
                    if (null == baseMapper) {
                        continue;
                    }
                    layer = createLayer(dataSource, baseMapper);
                    if (null == layer) {
                        continue;
                    }

                    String className = ClassHelper.getClassName(baseMapper);
                    Class clazz = ClassHelper.getEntityClass(className);
                    if (null == clazz) {
                        continue;
                    }

                    List<Field> fields = new ArrayList<>();
                    fields.add(getGeomField(clazz));
                    getFields(clazz, fields);
                    addLayerField(layer, fields);

                    setLayerData(layer, fields, map.get(key));
                } catch (Exception e) {
                    log.error(e.getMessage(), e);
                } finally {
                    if (null != layer) {
                        layer.delete();
                    }
                }
            }

            dataSource.SyncToDisk();
            dataSource.FlushCache();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        } finally {
            GdbHelper.delete(dataSource, driver);
        }
    }

    /**
     * 创建图层
     */
    private static Layer createLayer(DataSource dataSource, GeomBaseMapper baseMapper ) {
        String tab = BaseQueryService.getTabName(baseMapper);
        if (StringHelper.isNull(tab)) {
            return null;
        }

        String geomType = baseMapper.selectGeometryType(tab);
        if (StringHelper.isEmpty(geomType)) {
            return null;
        }

        Integer srid = baseMapper.selectSrid(tab);
        SpatialReference sr = new SpatialReference();
        sr.ImportFromEPSG(null == srid ? 4326 : srid);

        return dataSource.CreateLayer(tab, sr, getGeomType(geomType), null);
    }

    /**
     * 获取Geom类别
     */
    private static Integer getGeomType(String geomType) {
        if (StringHelper.isEmpty(geomType)) {
            return ogr.wkbUnknown;
        }

        switch (geomType) {
            case "ST_Point":
                return ogr.wkbPoint;
            case "ST_LineString":
                return ogr.wkbLineString;
            case "ST_MultiLineString":
                return ogr.wkbMultiLineString;
            case "ST_Polygon":
                return ogr.wkbPolygon;
            case "ST_MultiPolygon":
                return ogr.wkbMultiPolygon;
            default:
                return ogr.wkbUnknown;
        }
    }

    /**
     * 获取字段
     */
    private static void getFields(Class clazz, List<Field> list) {
        try {
            Field[] fields = clazz.getDeclaredFields();
            for (Field f : fields) {
                if (StaticData.GDB_EXCLUDE_FIELDS.contains(f.getName())) {
                    continue;
                }

                f.setAccessible(true);
                list.add(f);
            }

            if (!OBJECT.equals(clazz.getSuperclass().getName())) {
                getFields(clazz.getSuperclass(), list);
            }
        } catch (Exception ex) {
            //
        }
    }

    /**
     * 添加图层字段
     */
    private static void addLayerField(Layer layer, List<Field> list) {
        for (int i = 1, c = list.size(); i < c; i++) {
            Field f = list.get(i);

            int fieldType = getFieldType(f);
            FieldDefn fd = new FieldDefn(f.getName(), fieldType);

            layer.CreateField(fd, i);
        }
    }

    /**
     * 获取字段类型
     */
    private static Integer getFieldType(Field f) {
        switch (f.getType().getName()) {
            case "java.math.BigDecimal":
            case "java.lang.Double":
            case "double":
                return ogr.OFTReal;
            case "java.lang.Long":
            case "long":
                return ogr.OFTInteger64;
            case "java.lang.Integer":
            case "int":
                return ogr.OFTInteger;
            case "java.sql.Timestamp":
                return ogr.OFTDateTime;
            default:
                return ogr.OFTString;
        }
    }

    /**
     * 设置图层数据
     */
    private static <T> void setLayerData(Layer layer,  List<Field> fields, List<T> list) throws Exception {
        for (T t : list) {
            Feature f = new Feature(layer.GetLayerDefn());

            BaseGeoEntity geoEntity = (BaseGeoEntity) t;
            Geometry geom = Geometry.CreateFromWkt(geoEntity.getGeom());
            f.SetGeometry(geom);

            for (int i = 1, c = fields.size(); i < c; i++) {
                Field field = fields.get(i);
                Object val = field.get(t);
                if (null == val) {
                    continue;
                }

                switch (field.getType().getName()) {
                    case "java.math.BigDecimal":
                    case "java.lang.Double":
                    case "double":
                        double d = (double) val;
                        f.SetField(i, d);
                        break;
                    case "java.lang.Long":
                    case "long":
                        long l = (long) val;
                        f.SetField(i, l);
                        break;
                    case "java.lang.Integer":
                    case "int":
                        int n = (int) val;
                        f.SetField(i, n);
                        break;
                    case "java.sql.Timestamp":
                        Timestamp time = (Timestamp) field.get(t);
                        setTimestamp(f, i, time);
                        break;
                    default:
                        String str = (String) val;
                        f.SetField(i, str);
                        break;
                }
            }
            layer.CreateFeature(f);
        }
    }

    /**
     * 设置Timestamp
     */
    @SuppressWarnings("AlibabaRemoveCommentedCode")
    private static void setTimestamp(Feature f, int i, Timestamp time) {
        if (null == time) {
            return;
        }

        //Calendar now = Calendar.getInstance();
        //now.setTimeInMillis(time.getTime());
        // f.SetField(i, now.get(Calendar.YEAR), now.get(Calendar.MONTH) + 1, now.get(Calendar.DATE), now.get(Calendar.HOUR), now.get(Calendar.MINUTE), now.get(Calendar.SECOND), 8);

        LocalDateTime local = time.toLocalDateTime();
        f.SetField(i, local.getYear(), local.getMonthValue(), local.getDayOfMonth(), local.getHour(), local.getMinute(), local.getSecond(), 8);
    }
}