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/* Copyright© 2000 - 2023 SuperMap Software Co.Ltd. All rights reserved.
* This program are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution and is available at http://www.apache.org/licenses/LICENSE-2.0.html.*/
import mapboxgl from 'mapbox-gl';
import '../core/Base';
import { Util } from '../core/Util';
import { ServiceBase } from './ServiceBase';
import { Util as CommonUtil} from '@supermap/iclient-common/commontypes/Util';
import { EditFeaturesService } from '@supermap/iclient-common/iServer/EditFeaturesService';
import { Point as GeometryPoint } from '@supermap/iclient-common/commontypes/geometry/Point';
import { Geometry } from '@supermap/iclient-common/commontypes/Geometry';
import { FeatureService as CommonFeatureService } from '@supermap/iclient-common/iServer/FeatureService';
/**
* @class FeatureService
* @category iServer Data Feature
* @classdesc 要素数据集类。提供：ID 查询、范围查询、SQL 查询、几何查询、bounds 查询、缓冲区查询、地物编辑。
* @modulecategory Services
* @example
* new FeatureService(url)
* .getFeaturesByIDs(param,function(result){
* //doSomething
* })
* @extends {ServiceBase}
* @param {string} url - 服务地址。
* @param {Object} options -参数。
* @param {string} [options.proxy] - 服务代理地址。
* @param {boolean} [options.withCredentials=false] - 请求是否携带 cookie。
* @param {boolean} [options.crossOrigin] - 是否允许跨域请求。
* @param {Object} [options.headers] - 请求头。
* @usage
*/
export class FeatureService extends ServiceBase {
constructor(url, options) {
super(url, options);
this._featureService = new CommonFeatureService(url, options);
}
/**
* @function FeatureService.prototype.getFeaturesByIDs
* @description 数据集 ID 查询服务。
* @param {GetFeaturesByIDsParameters} params - ID查询参数类。
* @param {RequestCallback} callback - 回调函数。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回结果类型。
*/
getFeaturesByIDs(params, callback, resultFormat) {
params = this._processParams(params);
this._featureService.getFeaturesByIDs(params, callback, resultFormat);
}
/**
* @function FeatureService.prototype.getFeaturesByBounds
* @description 数据集 Bounds 查询服务。
* @param {GetFeaturesByBoundsParameters} params - 数据集范围查询参数类。
* @param {RequestCallback} callback - 回调函数。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回结果类型。
*/
getFeaturesByBounds(params, callback, resultFormat) {
params = this._processParams(params);
this._featureService.getFeaturesByBounds(params, callback, resultFormat);
}
/**
* @function FeatureService.prototype.getFeaturesByBuffer
* @description 数据集 Buffer 查询服务。
* @param {GetFeaturesByBufferParameters} params - 数据集缓冲区查询参数类。
* @param {RequestCallback} callback 回调函数。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回结果类型。
*/
getFeaturesByBuffer(params, callback, resultFormat) {
params = this._processParams(params);
this._featureService.getFeaturesByBuffer(params, callback, resultFormat);
}
/**
* @function FeatureService.prototype.getFeaturesBySQL
* @description 数据集 SQL 查询服务。
* @param {GetFeaturesBySQLParameters} params - 数据集 SQL 查询参数类。
* @param {RequestCallback} callback 回调函数。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回结果类型。
*/
getFeaturesBySQL(params, callback, resultFormat) {
params = this._processParams(params);
this._featureService.getFeaturesBySQL(params, callback, resultFormat);
}
/**
* @function FeatureService.prototype.getFeaturesByGeometry
* @description 数据集几何查询服务类。
* @param {GetFeaturesByGeometryParameters} params - 数据集几何查询参数类。
* @param {RequestCallback} callback - 回调函数。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回结果类型。
*/
getFeaturesByGeometry(params, callback, resultFormat) {
params = this._processParams(params);
this._featureService.getFeaturesByGeometry(params, callback, resultFormat);
}
/**
* @function FeatureService.prototype.editFeatures
* @description 地物编辑服务。
* @param {EditFeaturesParameters} params - 数据集添加、修改、删除参数类。
* @param {RequestCallback} callback 回调函数。
*/
editFeatures(params, callback) {
if (!params || !params.dataSourceName || !params.dataSetName) {
return;
}
var me = this,
url = me.url,
dataSourceName = params.dataSourceName,
dataSetName = params.dataSetName;
url = CommonUtil.urlPathAppend(url, 'datasources/' + dataSourceName + '/datasets/' + dataSetName);
var editFeatureService = new EditFeaturesService(url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
eventListeners: {
processCompleted: callback,
processFailed: callback
}
});
editFeatureService.processAsync(me._processParams(params));
}
/**
* @function FeatureService.prototype.getMetadata
* @description 地理要素元信息。
* @param {Object} params - 包括数据源名称、数据集名称、要素ID。
* @param {RequestCallback} callback - 回调函数。
*/
getMetadata(params, callback) {
this._featureService.getMetadata(params, callback);
}
/**
* @private
* @description 参数类型转换。
* @param {Object} params - 参数 。
* @returns {Object} params - 转换后的对接 SuperMap 服务的参数。
*/
_processParams(params) {
if (!params) {
return {};
}
var me = this;
params.returnContent = params.returnContent == null ? true : params.returnContent;
params.fromIndex = params.fromIndex ? params.fromIndex : 0;
params.toIndex = params.toIndex === 0 ? 0 : params.toIndex ? params.toIndex : -1;
if (params.bounds) {
params.bounds = Util.toSuperMapBounds(params.bounds);
}
if (params.editType) {
params.editType = params.editType.toLowerCase();
}
//mapboxgl geojson要素对象转 SuperMap Geometry 对象
if (params.geometry) {
if (params.geometry instanceof mapboxgl.LngLatBounds) {
params.geometry = Util.toSuperMapPolygon(params.geometry);
params.geometry.SRID = 4326;
} else if (params.geometry instanceof mapboxgl.Point) {
params.geometry = new GeometryPoint(params.geometry.x, params.geometry.y);
} else if (params.geometry instanceof mapboxgl.LngLat) {
params.geometry = new GeometryPoint(params.geometry.lng, params.geometry.lat);
params.geometry.SRID = 4326;
} else if (!(params.geometry instanceof Geometry)) {
params.geometry = Util.toSuperMapGeometry(params.geometry);
}
}
//editFeature服务参数转换,传入单独得对象或对象数组
if (params.features) {
var features = [];
if (Util.isArray(params.features)) {
params.features.map(function (feature) {
features.push(me._createServerFeature(feature));
return features;
});
} else {
features.push(me._createServerFeature(params.features));
}
params.features = features;
}
return params;
}
//geoFeature严格按照 mapboxgl geojson的结构
_createServerFeature(geoFeature) {
var feature = {},
fieldNames = [],
fieldValues = [];
var properties = geoFeature.properties;
for (var key in properties) {
fieldNames.push(key);
fieldValues.push(properties[key]);
}
feature.fieldNames = fieldNames;
feature.fieldValues = fieldValues;
if (geoFeature.id) {
feature.id = geoFeature.id;
}
feature.geometry = Util.toSuperMapGeometry(geoFeature);
return feature;
}
}