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QueryService.js
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158 lines (145 loc) · 5.37 KB
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import ol from 'openlayers';
import {
DataFormat,
Bounds,
GeometryPoint,
QueryByBoundsService,
QueryByDistanceService,
QueryBySQLService,
QueryByGeometryService
} from '@supermap/iclient-common';
import {Util} from '../core/Util';
import {ServiceBase} from './ServiceBase';
/**
* @class ol.supermap.QueryService
* @category iServer Map QueryResults
* @classdesc 地图查询服务类。
* 提供：范围查询，SQL查询，几何查询，距离查询
* @extends ol.supermap.ServiceBase
* @param url - {string} 地图查询服务访问地址。
* @param options - {Object} 服务交互时所需的可选参数。
* @example
* new ol.supermap.QueryService(url)
* .queryByBounds(param,function(result){
* //doSomething
* })
*/
export class QueryService extends ServiceBase {
constructor(url, options) {
super(url, options);
}
/**
* @function ol.supermap.QueryService.prototype.queryByBounds
* @description bounds查询地图服务
* @param params - {SuperMap.QueryByBoundsParameters} 通过Bounds查询的相关参数类
* @param callback - {function} 回调函数
* @param resultFormat - {SuperMap.DataFormat} 返回结果类型
* @return ol.supermap.QueryService}
*/
queryByBounds(params, callback, resultFormat) {
var me = this;
var queryService = new QueryByBoundsService(me.url, {
proxy: me.options.proxy,
serverType: me.options.serverType,
eventListeners: {
scope: me,
processCompleted: callback,
processFailed: callback
},
format: me._processFormat(resultFormat)
});
queryService.processAsync(me._processParams(params));
}
/**
* @function ol.supermap.QueryService.prototype.queryByDistance
* @description 地图距离查询服务
* @param params - {QueryByDistanceParameters} Distance查询相关参数类
* @param callback - {function} 回调函数
* @param resultFormat - {SuperMap.DataFormat} 返回结果类型
*/
queryByDistance(params, callback, resultFormat) {
var me = this;
var queryByDistanceService = new QueryByDistanceService(me.url, {
proxy: me.options.proxy,
serverType: me.options.serverType,
eventListeners: {
scope: me,
processCompleted: callback,
processFailed: callback
},
format: me._processFormat(resultFormat)
});
queryByDistanceService.processAsync(me._processParams(params));
}
/**
* @function ol.supermap.QueryService.prototype.queryBySQL
* @description 地图SQL查询服务
* @param params - {SuperMap.QueryBySQLParameters} SQL查询相关参数类
* @param callback - {function} 回调函数
* @param resultFormat - {SuperMap.DataFormat} 返回结果类型
*/
queryBySQL(params, callback, resultFormat) {
var me = this;
var queryBySQLService = new QueryBySQLService(me.url, {
proxy: me.options.proxy,
serverType: me.options.serverType,
eventListeners: {
scope: me,
processCompleted: callback,
processFailed: callback
},
format: me._processFormat(resultFormat)
});
queryBySQLService.processAsync(me._processParams(params));
}
/**
* @function ol.supermap.QueryService.prototype.queryByGeometry
* @description 地图几何查询服务
* @param params - {SuperMap.QueryByGeometryParameters} Geometry查询相关参数类
* @param callback - {function} 回调函数
* @param resultFormat - {SuperMap.DataFormat} 返回结果类型
*/
queryByGeometry(params, callback, resultFormat) {
var me = this;
var queryByGeometryService = new QueryByGeometryService(me.url, {
proxy: me.options.proxy,
serverType: me.options.serverType,
eventListeners: {
scope: me,
processCompleted: callback,
processFailed: callback
},
format: me._processFormat(resultFormat)
});
queryByGeometryService.processAsync(me._processParams(params));
}
_processParams(params) {
if (!params) {
return {};
}
params.returnContent = (params.returnContent == null) ? true : params.returnContent;
if (params.queryParams && !Util.isArray(params.queryParams)) {
params.queryParams = [params.queryParams];
}
if (params.bounds) {
params.bounds = new Bounds(
params.bounds[0],
params.bounds[1],
params.bounds[2],
params.bounds[3]
);
}
if (params.geometry) {
if (params.geometry instanceof ol.geom.Point) {
params.geometry = new GeometryPoint(params.geometry.getCoordinates()[0], params.geometry.getCoordinates()[1]);
} else {
params.geometry = Util.toSuperMapGeometry(JSON.parse((new ol.format.GeoJSON()).writeGeometry(params.geometry)));
}
}
return params;
}
_processFormat(resultFormat) {
return (resultFormat) ? resultFormat : DataFormat.GEOJSON;
}
}
ol.supermap.QueryService = QueryService;