1

13693261870

2022-11-23 2d2d9138fbe5c9c43f070be59a2d10f18fbf4c3b

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

@@ -5,6 +5,10 @@
import org.gdal.ogr.*;

import java.lang.reflect.Field;
import java.sql.Timestamp;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@@ -17,6 +21,13 @@
public class GdbHelper {
    private final static Log log = LogFactory.getLog(GdbHelper.class);

    public static List<String> excludeFields = new ArrayList<String>();

    static {
        excludeFields.add("gid");
        excludeFields.add("shape_leng");
    }

    /**
     * 获取表名
     */
@@ -24,16 +35,24 @@
        List<String> list = new ArrayList<>();
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("OpenFileGDB");
            if (driver == null) {
            if (null == driver) {
                return list;
            }

            DataSource dataSource = driver.Open(filePath, 0);
            if (null == dataSource) {
                return list;
            }

            for (int i = 0, count = dataSource.GetLayerCount(); i < count; i++) {
                Layer layer = dataSource.GetLayer(i);

                list.add(layer.GetName());

                layer.delete();
            }

            dataSource.delete();
            driver.delete();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        }
@@ -48,11 +67,15 @@
        List<T> list = new ArrayList<>();
        try {
            org.gdal.ogr.Driver driver = ogr.GetDriverByName("OpenFileGDB");
            if (driver == null) {
            if (null == driver) {
                return list;
            }

            DataSource dataSource = driver.Open(filePath, 0);
            if (null == dataSource) {
                return list;
            }

            for (int i = 0, count = dataSource.GetLayerCount(); i < count; i++) {
                Layer layer = dataSource.GetLayer(i);

@@ -64,6 +87,7 @@
                layer.delete();
            }

            dataSource.delete();
            driver.delete();
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
@@ -80,6 +104,9 @@
            Field gField = getGeomField(clazz);
            Map<Integer, Field> map = getFieldMapper(clazz, layer);
            if (map.size() == 0) {
                return;
            }
            if (1 > layer.GetFeatureCount()) {
                return;
            }

@@ -128,7 +155,12 @@
            for (int i = 0, count = fd.GetFieldCount(); i < count; i++) {
                FieldDefn fieldDefn = fd.GetFieldDefn(i);
                try {
                    Field field = clazz.getDeclaredField(fieldDefn.GetName().toLowerCase());
                    String name = fieldDefn.GetName().toLowerCase();
                    if (excludeFields.contains(name)){
                        continue;
                    }

                    Field field = clazz.getDeclaredField(name);
                    field.setAccessible(true);

                    map.put(i, field);
@@ -168,21 +200,21 @@
     */
    private static <T> void setValue(T t, Feature f, Field field, Integer i) throws Exception {
        switch (field.getType().toString()) {
            case "java.math.BigDecimal":
            case "java.lang.Double":
            case "class java.math.BigDecimal":
            case "class java.lang.Double":
            case "double":
                field.set(t, f.GetFieldAsDouble(i));
                break;
            case "java.lang.Long":
            case "class java.lang.Long":
            case "long":
                field.set(t, f.GetFieldAsInteger64(i));
                break;
            case "java.lang.Integer":
            case "class java.lang.Integer":
            case "int":
                field.set(t, f.GetFieldAsInteger(i));
                break;
            case "java.sql.Timestamp":
                field.set(t, GdalHelper.getProperty(f, i));
            case "class java.sql.Timestamp":
                field.set(t, getTimestamp(f, i));
                break;
            default:
                field.set(t, f.GetFieldAsString(i));
@@ -192,11 +224,62 @@

    /**
     * 设置 geom 字段值
     * <p>
     * wkbUnknown = 0,
     * wkbPoint = 1,
     * wkbLineString = 2,
     * wkbPolygon = 3,
     * wkbMultiPoint = 4,
     * wkbMultiLineString = 5,
     * wkbMultiPolygon = 6,
     * wkbGeometryCollection = 7,
     * wkbNone = 100,
     * wkbLinearRing = 101
     */
    private static <T> void setGeom(T t, Feature f, Field gField) throws Exception {
        Geometry geometry = f.GetGeometryRef();
        if (null != geometry) {
            gField.set(t, geometry.ExportToWkt());
            String wkt = geometry.ExportToWkt();
            switch (geometry.GetGeometryType()) {
                case 2:
                    wkt = wkt.replace("LINESTRING (", "MULTILINESTRING ((") + ")";
                    break;
                case 3:
                    wkt = wkt.replace("POLYGON (", "MULTIPOLYGON ((") + ")";
                    break;
                default:
                    break;
            }

            gField.set(t, String.format("ST_GeomFromText('%s')", wkt));
        }
    }

    /**
     * 获取 Timestamp
     */
    private static Timestamp getTimestamp(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);

        float fSecond = pfSecond[0];
        int s = (int) fSecond;
        int ns = (int) (1000000000 * fSecond - s);

        LocalDateTime localDateTime = LocalDateTime.of(
                LocalDate.of(pnYear[0], pnMonth[0], pnDay[0]),
                LocalTime.of(pnHour[0], pnMinute[0], s, ns)
        );

        Timestamp timestamp = Timestamp.valueOf(localDateTime);

        return timestamp;
    }
}