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119 lines (112 loc) · 4.49 KB
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/* Copyright© 2000 - 2021 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 {GetFieldsService, FieldStatisticService} from '@supermap/iclient-common';
/**
* @class mapboxgl.supermap.FieldService
* @category iServer Data Field
* @classdesc 字段服务类。
* @example
* new mapboxgl.supermap.FieldService(url).getFields(function(result){
* //doSomething
* });
* @param {string} url - 与客户端交互的服务地址。
* @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。
* @param {SuperMap.ServerType} [options.serverType=SuperMap.ServerType.ISERVER] - 服务来源 ISERVER|IPORTAL|ONLINE。
* @extends {mapboxgl.supermap.ServiceBase}
*/
export class FieldService extends ServiceBase {
constructor(url, options) {
super(url, options);
}
/**
* @function mapboxgl.supermap.FieldService.prototype.getFields
* @description 字段查询服务。
* @param {SuperMap.FieldParameters} params - 字段信息查询参数类。
* @param {RequestCallback} callback 回调函数。
*/
getFields(params, callback) {
var me = this;
var getFieldsService = new GetFieldsService(me.url, {
proxy: me.options.proxy,
withCredentials: me.options.withCredentials,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers,
serverType: me.options.serverType,
eventListeners: {
scope: me,
processCompleted: callback,
processFailed: callback
},
datasource: params.datasource,
dataset: params.dataset
});
getFieldsService.processAsync();
}
/**
* @function mapboxgl.supermap.FieldService.prototype.getFieldStatisticsInfo
* @description 字段统计服务。
* @param {SuperMap.FieldStatisticsParameters} params - 查询所需参数类。
* @param {RequestCallback} callback 回调函数。
*/
getFieldStatisticsInfo(params, callback) {
var me = this,
fieldName = params.fieldName,
modes = params.statisticMode;
if (modes && !Util.isArray(modes)) {
modes = [modes];
}
me.currentStatisticResult = {fieldName: fieldName};
me._statisticsCallback = callback;
//针对每种统计方式分别进行请求
modes.forEach(mode => {
me.currentStatisticResult[mode] = null;
me._fieldStatisticRequest(params.datasource, params.dataset, fieldName, mode);
})
}
_fieldStatisticRequest(datasource, dataset, fieldName, statisticMode) {
var me = this;
var statisticService = new FieldStatisticService(me.url, {
eventListeners: {
scope: me,
processCompleted: me._processCompleted,
processFailed: me._statisticsCallback
},
datasource: datasource,
dataset: dataset,
field: fieldName,
statisticMode: statisticMode,
crossOrigin: me.options.crossOrigin,
headers: me.options.headers
});
statisticService.processAsync();
}
_processCompleted(fieldStatisticResult) {
var me = this;
var getAll = true,
result = fieldStatisticResult.result;
if (this.currentStatisticResult) {
if (null == me.currentStatisticResult[result.mode]) {
this.currentStatisticResult[result.mode] = result.result;
}
}
for (var mode in me.currentStatisticResult) {
if (null == me.currentStatisticResult[mode]) {
getAll = false;
break;
}
}
if (getAll) {
me._statisticsCallback({result: me.currentStatisticResult});
}
}
}
mapboxgl.supermap.FieldService = FieldService;