1

13693261870

2023-02-10 014639637a80b0549cc0aee00b9a9670fb57827c

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

@@ -1,10 +1,18 @@
package com.lf.server.helper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.lf.server.entity.all.BaseGeoEntity;
import com.lf.server.entity.all.StaticData;
import com.lf.server.mapper.all.BasicMapper;
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.math.BigDecimal;
import java.sql.Timestamp;
import java.time.LocalDate;
import java.time.LocalDateTime;
@@ -17,8 +25,6 @@
 */
public class GdbHelper {
    private final static Log log = LogFactory.getLog(GdbHelper.class);

    private static List<String> excludeFields = new ArrayList<>(Arrays.asList("gid", "objectid", "dirid", "depid", "verid","createtime", "createuser", "updateuser", "updatetime", "shape_leng", "shape_area"));

    /**
     * 销毁资源
@@ -71,13 +77,16 @@
        Driver driver = null;
        DataSource dataSource = null;
        try {
            driver = ogr.GetDriverByName("OpenFileGDB");
            // driver = ogr.GetDriverByName("OpenFileGDB")
            driver = ogr.GetDriverByName("FileGDB");
            if (null == driver) {
                log.error("GdbHelper.getTabNames.driver is null.");
                return list;
            }

            dataSource = driver.Open(filePath, 0);
            if (null == dataSource) {
                log.error("GdbHelper.getTabNames.dataSource is null. " + filePath);
                return list;
            }

@@ -105,7 +114,8 @@
        Driver driver = null;
        DataSource dataSource = null;
        try {
            driver = ogr.GetDriverByName("OpenFileGDB");
            // driver = ogr.GetDriverByName("OpenFileGDB")
            driver = ogr.GetDriverByName("FileGDB");
            if (null == driver) {
                return list;
            }
@@ -181,14 +191,14 @@
    /**
     * 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++) {
                FieldDefn fieldDefn = fd.GetFieldDefn(i);
                try {
                    String name = fieldDefn.GetName().toLowerCase();
                    if (excludeFields.contains(name)) {
                    if (StaticData.READ_EXCLUDE_FIELDS.contains(name)) {
                        continue;
                    }

@@ -201,7 +211,7 @@
                }
            }

            if ("java.lang.Object" != clazz.getSuperclass().getName()) {
            if (!StaticData.OBJECT.equals(clazz.getSuperclass().getName())) {
                getFieldMapper(clazz.getSuperclass(), layer, map);
            }
        } catch (Exception ex) {
@@ -235,6 +245,9 @@
    private static <T> void setValue(T t, Feature f, Field field, Integer i) throws Exception {
        switch (field.getType().getName()) {
            case "java.math.BigDecimal":
                double dd = f.GetFieldAsDouble(i);
                field.set(t, BigDecimal.valueOf(dd));
                break;
            case "java.lang.Double":
            case "double":
                field.set(t, f.GetFieldAsDouble(i));
@@ -249,6 +262,9 @@
                break;
            case "java.sql.Timestamp":
                field.set(t, getTimestamp(f, i));
                break;
            case "java.time.LocalDate":
                field.set(t, getLocalDate(f, i));
                break;
            default:
                field.set(t, f.GetFieldAsString(i));
@@ -274,7 +290,11 @@
        String geo = "null";
        if (null != f.GetGeometryRef()) {
            String wkt = f.GetGeometryRef().ExportToWkt();
            // noinspection AlibabaRemoveCommentedCode
            switch (f.GetGeometryRef().GetGeometryType()) {
                //case 1:
                //    wkt = wkt.replace("POINT", "MULTIPOINT");
                //    break;
                case 2:
                    wkt = wkt.replace("LINESTRING (", "MULTILINESTRING ((") + ")";
                    break;
@@ -315,4 +335,281 @@

        return Timestamp.valueOf(localDateTime);
    }

    /**
     * 获取 LocalDate
     */
    private static LocalDate getLocalDate(Feature f, int index) {
        int[] pnYear = new int[1];
        int[] pnMonth = new int[1];
        int[] pnDay = new int[1];
        int[] pnHour = new int[1];
        int[] pnMinute = new int[1];
        float[] pfSecond = new float[1];
        int[] pnTzFlag = new int[1];

        f.GetFieldAsDateTime(index, pnYear, pnMonth, pnDay, pnHour, pnMinute, pfSecond, pnTzFlag);

        return LocalDate.of(pnYear[0], pnMonth[0], pnDay[0]);
    }

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

            for (String key : map.keySet()) {
                Layer layer = null;
                try {
                    BasicMapper baseMapper = ClassHelper.getBasicMapper(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));
                } finally {
                    if (null != layer) {
                        layer.delete();
                    }
                }
            }

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

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

        Integer srid = null;
        String geomType = null;
        if (baseMapper instanceof GeomBaseMapper) {
            GeomBaseMapper geomMapper = (GeomBaseMapper) baseMapper;
            geomType = geomMapper.selectGeometryType(tab);

            srid = geomMapper.selectSrid(tab);
        }

        SpatialReference sr = new SpatialReference();
        sr.ImportFromEPSG(null == srid ? 4490 : 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.wkbPoint;
        }

        switch (geomType) {
            case "ST_Point":
                return ogr.wkbPoint;
            case "ST_MultiPoint":
                return ogr.wkbMultiPoint;
            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 (!StaticData.OBJECT.equals(clazz.getSuperclass().getName())) {
                getFields(clazz.getSuperclass(), list);
            }
        } catch (Exception ex) {
            //
        }
    }

    /**
     * 添加图层字段
     */
    public static void addLayerField(Layer layer, List<Field> list) {
        for (int i = 0, 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 + 1);
        }
    }

    /**
     * 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;
            case "java.time.LocalDate":
                return ogr.OFTDate;
            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());

            if (t instanceof BaseGeoEntity) {
                BaseGeoEntity geoEntity = (BaseGeoEntity) t;
                if (!StringHelper.isEmpty(geoEntity.getGeom())) {
                    Geometry geom = Geometry.CreateFromWkt(geoEntity.getGeom());
                    f.SetGeometry(geom);
                }
            }

            setFeatureData(f, fields, t);
            layer.CreateFeature(f);
        }
    }

    /**
     * 设置要素的数据
     */
    public static <T> void setFeatureData(Feature f, List<Field> fields, T t) throws Exception {
        for (int i = 0, 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":
                    BigDecimal big = (BigDecimal) val;
                    f.SetField(i, big.doubleValue());
                    break;
                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 timestamp = (Timestamp) field.get(t);
                    setTimestamp(f, i, timestamp);
                    break;
                case "java.time.LocalDate":
                    LocalDate localDate = (LocalDate) field.get(t);
                    setLocalDate(f, i, localDate);
                    break;
                default:
                    String str = (String) val;
                    f.SetField(i, str);
                    break;
            }
        }
    }

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

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

    /**
     * 设置LocalDate
     */
    private static void setLocalDate(Feature f, int i, LocalDate local) {
        if (null == local) {
            return;
        }

        f.SetField(i, local.getYear(), local.getMonthValue(), local.getDayOfMonth(), 0, 0, 0, 8);
    }
}