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FieldStatisticService.js
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107 lines (91 loc) · 3.81 KB
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/* Copyright© 2000 - 2022 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 {CommonServiceBase} from './CommonServiceBase';
import {Util} from '../commontypes/Util';
import './FieldStatisticsParameters';
/**
* @class FieldStatisticService
* @deprecatedclass SuperMap.FieldStatisticService
* @category iServer Data Field
* @classdesc 字段查询统计服务类。用来完成对指定数据集指定字段的查询统计分析，即求平均值，最大值等。
* @extends {CommonServiceBase}
* @param {string} url - 服务地址。如访问 World Map 服务，只需将 url 设为：http://localhost:8090/iserver/services/data-world/rest/data 即可。
* @param {Object} options - 参数。
* @param {Object} options.eventListeners - 事件监听器对象。有 processCompleted 属性可传入处理完成后的回调函数。processFailed 属性传入处理失败后的回调函数。
* @param {DataFormat} [options.format] - 查询结果返回格式，目前支持 iServerJSON 和GeoJSON 两种格式。参数格式为 "ISERVER","GEOJSON"。
* @param {string} options.datasource - 数据集所在的数据源名称。
* @param {string} options.dataset - 数据集名称。
* @param {string} options.field - 查询统计的目标字段名称。
* @param {StatisticMode} options.statisticMode - 字段查询统计的方法类型。
* @param {boolean} [options.crossOrigin] - 是否允许跨域请求。
* @param {Object} [options.headers] - 请求头。
* @example
* var myService = new FieldStatisticService(url, {eventListeners: {
* "processCompleted": fieldStatisticCompleted,
* "processFailed": fieldStatisticError
* }，
* datasource: "World",
* dataset: "Countries",
* field: "SmID",
* statisticMode: StatisticMode.AVERAGE
* };
* @usage
*/
export class FieldStatisticService extends CommonServiceBase {
constructor(url, options) {
super(url, options);
/**
* @member {string} FieldStatisticService.prototype.datasource
* @description 数据集所在的数据源名称。
*/
this.datasource = null;
/**
* @member {string} FieldStatisticService.prototype.dataset
* @description 数据集名称。
*/
this.dataset = null;
/**
* @member {string} FieldStatisticService.prototype.field
* @description 查询统计的目标字段名称。
*/
this.field = null;
/**
* @member {StatisticMode} FieldStatisticService.prototype.statisticMode
* @description 字段查询统计的方法类型。
*/
this.statisticMode = null;
if (options) {
Util.extend(this, options);
}
this.CLASS_NAME = "SuperMap.FieldStatisticService";
}
/**
* @function FieldStatisticService.prototype.destroy
* @override
*/
destroy() {
super.destroy();
var me = this;
me.datasource = null;
me.dataset = null;
me.field = null;
me.statisticMode = null;
}
/**
* @function FieldStatisticService.prototype.processAsync
* @description 执行服务，进行指定字段的查询统计。
*/
processAsync() {
var me = this,
fieldStatisticURL = "datasources/" + me.datasource + "/datasets/" + me.dataset + "/fields/" + me.field + "/" + me.statisticMode;
me.url = Util.urlPathAppend(me.url, fieldStatisticURL);
me.request({
method: "GET",
data: null,
scope: me,
success: me.serviceProcessCompleted,
failure: me.serviceProcessFailed
});
}
}