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FeatureService.js
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/* Copyright© 2000 - 2025 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 { Util as CommonUtil } from '../commontypes/Util';
import { GetFeaturesByIDsService } from './GetFeaturesByIDsService';
import { GetFeaturesBySQLService } from './GetFeaturesBySQLService';
import { GetFeaturesByBoundsService } from './GetFeaturesByBoundsService';
import { GetFeaturesByBufferService } from './GetFeaturesByBufferService';
import { GetFeaturesByGeometryService } from './GetFeaturesByGeometryService';
import { FeatureAttachmentsService } from './FeatureAttachmentsService';
import { EditFeaturesService } from './EditFeaturesService';
import { DataFormat } from '../REST';
const FEATURE_SERVICE_MAP = {
id: GetFeaturesByIDsService,
sql: GetFeaturesBySQLService,
bounds: GetFeaturesByBoundsService,
buffer: GetFeaturesByBufferService,
geometry: GetFeaturesByGeometryService
}
/**
* @class FeatureService
* @constructs FeatureService
* @category iServer Data Feature
* @classdesc 数据集类。提供：ID 查询，范围查询，SQL查询，几何查询，缓冲区查询，地物编辑，要素附件查询、添加、删除等方法。
* @example
* new FeatureService(url).getFeaturesByIDs(param,function(result){
* //doSomething
* })
* @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。
* @extends {ServiceBase}
* @usage
*/
export class FeatureService {
constructor(url, options) {
this.url = url;
this.options = 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，该参数未传时可通过返回的 promise 获取结果。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回的数据格式。
* @returns {Promise} Promise 对象。
*/
getFeaturesByIDs(params, callback, resultFormat) {
var me = this;
var getFeaturesByIDsService = new GetFeaturesByIDsService(me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
format: resultFormat
});
return getFeaturesByIDsService.processAsync(params, callback);
}
/**
* @function FeatureService.prototype.getFeaturesByBounds
* @description 数据集范围查询服务。
* @param {GetFeaturesByBoundsParameters} params - 数据集范围查询参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回的数据格式。
* @returns {Promise} Promise 对象。
*/
getFeaturesByBounds(params, callback, resultFormat) {
var me = this;
var getFeaturesByBoundsService = new GetFeaturesByBoundsService(me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
format: me._processFormat(resultFormat)
});
return getFeaturesByBoundsService.processAsync(params, callback);
}
/**
* @function FeatureService.prototype.getFeaturesByBuffer
* @description 数据集缓冲区查询服务。
* @param {GetFeaturesByBufferParameters} params - 数据集缓冲区查询参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回的数据格式。
* @returns {Promise} Promise 对象。
*/
getFeaturesByBuffer(params, callback, resultFormat) {
var me = this;
var getFeatureService = new GetFeaturesByBufferService(me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
format: me._processFormat(resultFormat)
});
return getFeatureService.processAsync(params, callback);
}
/**
* @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，该参数未传时可通过返回的 promise 获取结果。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回的数据格式。
* @returns {Promise} Promise 对象。
*/
getFeaturesBySQL(params, callback, resultFormat) {
var me = this;
var getFeatureBySQLService = new GetFeaturesBySQLService(me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
format: me._processFormat(resultFormat)
});
return getFeatureBySQLService.processAsync(params, callback);
}
/**
* @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，该参数未传时可通过返回的 promise 获取结果。
* @param {DataFormat} [resultFormat=DataFormat.GEOJSON] - 返回的数据格式。
* @returns {Promise} Promise 对象。
*/
getFeaturesByGeometry(params, callback, resultFormat) {
var me = this;
var getFeaturesByGeometryService = new GetFeaturesByGeometryService(me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
format: me._processFormat(resultFormat)
});
return getFeaturesByGeometryService.processAsync(params, callback);
}
/**
* @function FeatureService.prototype.editFeatures
* @description 地物编辑服务。
* @param {EditFeaturesParameters} params - 数据服务中数据集添加、修改、删除参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @returns {Promise} Promise 对象。
*/
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
});
return editFeatureService.processAsync(params, callback);
}
/**
* @function FeatureService.prototype.getMetadata
* @description 地理要素元信息服务。
* @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，该参数未传时可通过返回的 promise 获取结果。
* @returns {Promise} Promise 对象。
*/
getMetadata(params, callback) {
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
});
return editFeatureService.getMetaData(params, callback);
}
/**
* @function FeatureService.prototype.getFeatureAttachments
* @description 要素附件查询服务。
* @version 11.2.0
* @param {AttachmentsParameters} params - 要素附件服务中附件查询参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @returns {Promise} Promise 对象。
*/
getFeatureAttachments(params, callback) {
if (!params || !params.dataSourceName || !params.dataSetName || !params.featureId == null) {
return;
}
var me = this,
url = me.url,
dataSourceName = params.dataSourceName,
dataSetName = params.dataSetName;
url = CommonUtil.urlPathAppend(url, "datasources/" + dataSourceName + "/datasets/" + dataSetName);
var featureAttachmentsService = new FeatureAttachmentsService(url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers
});
return featureAttachmentsService.getAttachments(params, callback);
}
/**
* @function FeatureService.prototype.editFeatureAttachments
* @description 要素附件编辑服务。
* @version 11.2.0
* @param {EditAttachmentsParameters} params - 要素附件服务中附件添加、删除参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @returns {Promise} Promise 对象。
*/
editFeatureAttachments(params, callback) {
if (!params || !params.dataSourceName || !params.dataSetName || !params.featureId == null || !params.editType) {
return;
}
var me = this,
url = me.url,
dataSourceName = params.dataSourceName,
dataSetName = params.dataSetName;
url = CommonUtil.urlPathAppend(url, "datasources/" + dataSourceName + "/datasets/" + dataSetName);
var featureAttachmentsService = new FeatureAttachmentsService(url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers
});
return featureAttachmentsService.processAsync(params, callback);
}
/**
* @function FeatureService.prototype.getFeaturesCount
* @description 获取要素数量。
* @version 11.2.0
* @param {GetFeaturesByIDsParameters|GetFeaturesByBoundsParameters|GetFeaturesByBufferParameters|GetFeaturesByGeometryParameters|GetFeaturesBySQLParameters} params - 查询参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @returns {Promise} Promise 对象。
*/
getFeaturesCount(params, callback) {
var me = this;
var newParams = { ...params, returnCountOnly: true, returnContent: true, returnFeaturesOnly: false };
let queryType = Object.keys(FEATURE_SERVICE_MAP).find((type) => {
return newParams.CLASS_NAME.toLowerCase().includes(type);
});
var getFeaturesServiceBase = new FEATURE_SERVICE_MAP[queryType](me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers
});
return getFeaturesServiceBase.processAsync(newParams, callback);
}
/**
* @function FeatureService.prototype.getFeaturesDatasetInfo
* @description 获取要素数据集信息。
* @version 11.2.0
* @param {GetFeaturesByIDsParameters|GetFeaturesByBoundsParameters|GetFeaturesByBufferParameters|GetFeaturesByGeometryParameters|GetFeaturesBySQLParameters} params - 查询参数类。
* @param {RequestCallback} [callback] - 回调函数，该参数未传时可通过返回的 promise 获取结果。
* @returns {Promise} Promise 对象。
*/
getFeaturesDatasetInfo(params, callback) {
var me = this;
var newParams = { ...params, returnDatasetInfoOnly: true, returnContent: true, returnFeaturesOnly: false };
let queryType = Object.keys(FEATURE_SERVICE_MAP).find((type) => {
return newParams.CLASS_NAME.toLowerCase().includes(type);
});
var getFeaturesServiceBase = new FEATURE_SERVICE_MAP[queryType](me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers
});
return getFeaturesServiceBase.processAsync(newParams, callback);
}
_processFormat(resultFormat) {
return resultFormat ? resultFormat : DataFormat.GEOJSON;
}
}