From b69e86316f5a8802a8cc2ff552bc798b4c27aba4 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期二, 06 十二月 2022 09:39:59 +0800
Subject: [PATCH] 1
---
src/main/java/com/lf/server/helper/GdbHelper.java | 270 ++++++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 251 insertions(+), 19 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/GdbHelper.java b/src/main/java/com/lf/server/helper/GdbHelper.java
index 7d56898..33c0e36 100644
--- a/src/main/java/com/lf/server/helper/GdbHelper.java
+++ b/src/main/java/com/lf/server/helper/GdbHelper.java
@@ -2,12 +2,14 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
-import org.gdal.ogr.DataSource;
-import org.gdal.ogr.Layer;
-import org.gdal.ogr.ogr;
+import org.gdal.ogr.*;
-import java.util.ArrayList;
-import java.util.List;
+import java.lang.reflect.Field;
+import java.sql.Timestamp;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.util.*;
/**
* GDB甯姪绫�
@@ -16,25 +18,81 @@
public class GdbHelper {
private final static Log log = LogFactory.getLog(GdbHelper.class);
+ private final static String OBJECT ="java.lang.Object";
+
+ private static List<String> excludeFields = new ArrayList<>(Arrays.asList("gid", "objectid", "dirid", "depid", "verid","createtime", "createuser", "updateuser", "updatetime", "shape_leng", "shape_area"));
+
+ /**
+ * 閿�姣佽祫婧�
+ */
+ public static void delete(Layer layer) {
+ try {
+ if (null != layer) {
+ layer.delete();
+ }
+ } catch (Exception ex) {
+ log.error(ex.getMessage(), ex);
+ }
+ }
+
+ /**
+ * 閿�姣佽祫婧�
+ */
+ public static void delete(DataSource dataSource, Driver driver) {
+ try {
+ if (null != dataSource) {
+ dataSource.delete();
+ }
+ } catch (Exception ex) {
+ log.error(ex.getMessage(), ex);
+ }
+
+ try {
+ if (null != driver) {
+ driver.delete();
+ }
+ } catch (Exception ex) {
+ log.error(ex.getMessage(), ex);
+ }
+ }
+
+ /**
+ * 閿�姣佽祫婧�
+ */
+ public static void delete(Layer layer, DataSource dataSource, Driver driver) {
+ delete(layer);
+ delete(dataSource, driver);
+ }
+
/**
* 鑾峰彇琛ㄥ悕
*/
public static List<String> getTabNames(String filePath) {
List<String> list = new ArrayList<>();
+
+ Driver driver = null;
+ DataSource dataSource = null;
try {
- org.gdal.ogr.Driver driver = ogr.GetDriverByName("OpenFileGDB");
- if (driver == null) {
+ driver = ogr.GetDriverByName("OpenFileGDB");
+ if (null == driver) {
return list;
}
- DataSource dataSource = driver.Open(filePath, 0);
+ 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();
}
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
+ } finally {
+ GdbHelper.delete(dataSource, driver);
}
return list;
@@ -45,16 +103,22 @@
*/
public static <T> List<T> readData(Class clazz, String filePath, String layerName) {
List<T> list = new ArrayList<>();
+
+ Driver driver = null;
+ DataSource dataSource = null;
try {
- org.gdal.ogr.Driver driver = ogr.GetDriverByName("OpenFileGDB");
- if (driver == null) {
+ driver = ogr.GetDriverByName("OpenFileGDB");
+ if (null == driver) {
return list;
}
- DataSource dataSource = driver.Open(filePath, 0);
+ 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);
-
if (layer.GetName().equals(layerName)) {
GdbHelper.readLayer(clazz, layer, list);
break;
@@ -62,10 +126,10 @@
layer.delete();
}
-
- driver.delete();
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
+ } finally {
+ GdbHelper.delete(dataSource, driver);
}
return list;
@@ -76,13 +140,181 @@
*/
public static <T> void readLayer(Class clazz, Layer layer, List<T> list) {
try {
- //
+ Field gField = getGeomField(clazz);
+
+ Map<Integer, Field> map = new HashMap<>(3);
+ getFieldMapper(clazz, layer, map);
+ if (map.isEmpty() || 0 == layer.GetFeatureCount()) {
+ return;
+ }
+
+ do {
+ Feature f = layer.GetNextFeature();
+ if (null == f) {
+ break;
+ }
+
+ T t = (T) clazz.newInstance();
+ if (readFeature(t, f, map, gField)) {
+ list.add(t);
+ }
+ } while (true);
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
} finally {
- if (null != layer) {
- layer.delete();
- }
+ GdbHelper.delete(layer);
}
}
+
+ /**
+ * 鑾峰彇 geom 瀛楁
+ */
+ private static Field getGeomField(Class clazz) {
+ try {
+ Field gField = clazz.getSuperclass().getDeclaredField("geom");
+ gField.setAccessible(true);
+
+ return gField;
+ } catch (Exception ex) {
+ return null;
+ }
+ }
+
+ /**
+ * 鑾峰彇瀛楁鏄犲皠
+ */
+ private static <T> 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)) {
+ continue;
+ }
+
+ Field field = clazz.getDeclaredField(name);
+ field.setAccessible(true);
+
+ map.put(i, field);
+ } catch (Exception e) {
+ //
+ }
+ }
+
+ if (OBJECT != clazz.getSuperclass().getName()) {
+ getFieldMapper(clazz.getSuperclass(), layer, map);
+ }
+ } catch (Exception ex) {
+ //
+ }
+ }
+
+ /**
+ * 璇诲彇Feature
+ */
+ private static <T> boolean readFeature(T t, Feature f, Map<Integer, Field> map, Field gField) {
+ try {
+ for (Integer i : map.keySet()) {
+ Field field = map.get(i);
+ setValue(t, f, field, i);
+ }
+
+ if (null != gField) {
+ setGeom(t, f, gField);
+ }
+
+ return true;
+ } catch (Exception ex) {
+ return false;
+ }
+ }
+
+ /**
+ * 璁剧疆鍊�
+ */
+ private static <T> void setValue(T t, Feature f, Field field, Integer i) throws Exception {
+ switch (field.getType().getName()) {
+ case "java.math.BigDecimal":
+ case "java.lang.Double":
+ case "double":
+ field.set(t, f.GetFieldAsDouble(i));
+ break;
+ case "java.lang.Long":
+ case "long":
+ field.set(t, f.GetFieldAsInteger64(i));
+ break;
+ case "java.lang.Integer":
+ case "int":
+ field.set(t, f.GetFieldAsInteger(i));
+ break;
+ case "java.sql.Timestamp":
+ field.set(t, getTimestamp(f, i));
+ break;
+ default:
+ field.set(t, f.GetFieldAsString(i));
+ break;
+ }
+ }
+
+ /**
+ * 璁剧疆 geom 瀛楁鍊�
+ * <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 {
+ String geo = "null";
+ if (null != f.GetGeometryRef()) {
+ String wkt = f.GetGeometryRef().ExportToWkt();
+ switch (f.GetGeometryRef().GetGeometryType()) {
+ case 2:
+ wkt = wkt.replace("LINESTRING (", "MULTILINESTRING ((") + ")";
+ break;
+ case 3:
+ wkt = wkt.replace("POLYGON (", "MULTIPOLYGON ((") + ")";
+ break;
+ default:
+ break;
+ }
+ geo = String.format("ST_GeomFromText('%s')", wkt);
+ }
+
+ gField.set(t, geo);
+ }
+
+ /**
+ * 鑾峰彇 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)
+ );
+
+ return Timestamp.valueOf(localDateTime);
+ }
}
--
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