package com.se.nsl.config;
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import com.se.nsl.helper.CaffeineHelper;
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import com.se.nsl.helper.GdalHelper;
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import com.se.nsl.helper.WebHelper;
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import lombok.extern.slf4j.Slf4j;
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import org.gdal.gdal.Band;
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import org.gdal.gdal.Dataset;
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import org.gdal.gdal.Driver;
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import org.gdal.gdal.gdal;
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import org.gdal.gdalconst.gdalconstConstants;
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import org.gdal.ogr.*;
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import org.gdal.osr.SpatialReference;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.boot.ApplicationArguments;
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import org.springframework.boot.ApplicationRunner;
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import org.springframework.core.env.Environment;
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import org.springframework.stereotype.Component;
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import javax.annotation.Resource;
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import java.util.HashMap;
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import java.util.Map;
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@Slf4j
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@Component
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@SuppressWarnings("ALL")
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public class InitConfig implements ApplicationRunner {
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@Resource
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Environment env;
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@Value("${server.port}")
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String serverPort;
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@Value("${config.cacheTime}")
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Integer cacheTime;
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@Value("${server.servlet.context-path}")
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String contextPath;
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@Override
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public void run(ApplicationArguments args) {
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// noinspection AlibabaRemoveCommentedCode
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try {
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log.info("***************** 初始化 GDAL *****************" + "\n");
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GdalHelper.init(env.getProperty("config.gdalPath"));
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CaffeineHelper.init(cacheTime);
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String path = null != contextPath && contextPath.length() > 1 ? contextPath : "";
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log.info("API文档:http://localhost:" + serverPort + path + "/doc.html");
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log.info("API文档:http://{}:{}{}/doc.html", WebHelper.getHostIp(), serverPort, path);
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log.info("***************** 系统启动完毕 *****************" + "\n");
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//log.info("***************** 读取tif文件 *****************" + "\n");
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// 读取tif文件
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//readTif("D:\\soft\\env\\tif\\srtm_12_03.tif");
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//log.info("***************** 读取tif文件完毕 *****************" + "\n");
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//log.info("***************** 读取shp文件 *****************" + "\n");
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// 读取shp文件
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//readShp("D:\\soft\\env\\雨量站点数据\\雨量站点_84\\雨量站点_84.shp");
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//log.info("***************** 读取shp文件完毕 *****************" + "\n");
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} catch (Exception ex) {
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log.error(ex.getMessage(), ex);
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}
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}
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/**
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* 读取tif文件
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*
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* @param fileName
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*/
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public static void readTif(String fileName) {
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// 读取影像数据
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Dataset dataset = gdal.Open(fileName, gdalconstConstants.GA_ReadOnly);
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if (dataset == null) {
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System.out.println("read fail!");
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return;
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}
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// providing various methods for a format specific driver.
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Driver driver = dataset.GetDriver();
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System.out.println("driver name: " + driver.getLongName());
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// 读取影像信息
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int xSize = dataset.getRasterXSize();
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int ySzie = dataset.getRasterYSize();
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int rasterCount = dataset.getRasterCount();
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System.out.println("dataset xSize: " + xSize + ", ySzie = " + ySzie + ", rasterCount = " + rasterCount);
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Band band = dataset.GetRasterBand(1);
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// the data type of the band.
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int type = band.GetRasterDataType();
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System.out.println("data type = " + type + ", " + (type == gdalconstConstants.GDT_Byte));
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// Frees the native resource associated to a Dataset object and close the file.
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dataset.delete();
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gdal.GDALDestroyDriverManager();
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}
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/**
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* 读取 Shapefile 文件并打印属性和几何数据
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*
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* @param shapefilePath SHP 文件路径
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*/
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public void readShp(String strVectorFile) {
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// 注册所有的驱动
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ogr.RegisterAll();
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// 为了支持中文路径，请添加下面这句代码
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gdal.SetConfigOption("GDAL_FILENAME_IS_UTF8", "YES");
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// 为了使属性表字段支持中文，请添加下面这句
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gdal.SetConfigOption("SHAPE_ENCODING", "CP936");
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// 读取数据，这里以ESRI的shp文件为例
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String strDriverName = "ESRI Shapefile";
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// 创建一个文件，根据strDriverName扩展名自动判断驱动类型
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org.gdal.ogr.Driver oDriver = ogr.GetDriverByName(strDriverName);
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if (oDriver == null) {
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System.out.println(strDriverName + " 驱动不可用！\n");
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return;
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}
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DataSource dataSource = oDriver.Open(strVectorFile);
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//Layer layer = dataSource.GetLayer("test");
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Layer layer = dataSource.GetLayer(0);
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for (int i = 0; i < dataSource.GetLayerCount(); i++) {
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Layer layerIdx = dataSource.GetLayer(i);
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System.out.println("图层名称：<==>" + layerIdx.GetName());
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}
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String layerName = layer.GetName();
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System.out.println("图层名称：" + layerName);
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SpatialReference spatialReference = layer.GetSpatialRef();
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//System.out.println(spatialReference);
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System.out.println("空间参考坐标系：" + spatialReference.GetAttrValue("AUTHORITY", 0)
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+ spatialReference.GetAttrValue("AUTHORITY", 1));
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double[] layerExtent = layer.GetExtent();
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System.out.println("图层范围：minx:" + layerExtent[0] + ",maxx:" + layerExtent[1] + ",miny:" + layerExtent[2] + ",maxy:" + layerExtent[3]);
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FeatureDefn featureDefn = layer.GetLayerDefn();
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int fieldCount = featureDefn.GetFieldCount();
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Map<String, String> fieldMap = new HashMap<String, String>();
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for (int i = 0; i < fieldCount; i++) {
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FieldDefn fieldDefn = featureDefn.GetFieldDefn(i);
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// 得到属性字段类型
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int fieldType = fieldDefn.GetFieldType();
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String fieldTypeName = fieldDefn.GetFieldTypeName(fieldType);
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// 得到属性字段名称
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String fieldName = fieldDefn.GetName();
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fieldMap.put(fieldTypeName, fieldName);
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}
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System.out.println();
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System.out.println("fileMap:");
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System.out.println(fieldMap);
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System.out.println(layer.GetFeature(1).GetGeometryRef().ExportToJson());
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System.out.println(layer.GetFeature(2).GetGeometryRef().ExportToJson());
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System.out.println(layer.GetFeature(3).GetGeometryRef().ExportToJson());
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for (int i = 0; i < 12; i++) {
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Feature feature = layer.GetFeature(i);
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Object[] arr = fieldMap.values().toArray();
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for (int k = 0; k < arr.length; k++) {
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String fvalue = feature.GetFieldAsString(arr[k].toString());
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System.out.println(" 属性名称:" + arr[k].toString() + ",属性值:" + fvalue);
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}
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}
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}
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}
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