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DataFlowService.js
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134 lines (123 loc) · 4.22 KB
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import ol from 'openlayers/dist/ol-debug';
import SuperMap from '../../common/SuperMap';
import ServiceBase from './ServiceBase';
import DataFlow from '../../common/iServer/DataFlowService';
/**
* @class ol.supermap.DataFlowService
* @classdesc 实时数据服务
* @extends ol.supermap.ServiceBase
* @example
* new ol.supermap.DataFlowService(url)
* .queryChart(param,function(result){
* //doSomething
* })
* @param url - {string} 与客户端交互的实时数据服务地址。
* @param options - {Object} 加载实时数据可选参数。如：<br>
* style - {function} 设置数据加载样式。<br>
* onEachFeature - {function} 设置每个数据加载popup等。<br>
* geometry - {Array<Object>} 设置增添的几何要素对象数组。<br>
* excludeField - -{Object} 排除字段
*/
export default class DataFlowService extends ServiceBase {
constructor(url, options) {
super(url, options);
options = options || {};
if (options.projection) {
this.options.prjCoordSys = new SuperMap.Projection(options.projection);
}
ServiceBase.call(this, url, options);
this.dataFlow = new DataFlow(url, options);
this.dataFlow.events.on({
"broadcastSocketConnected": this._defaultEvent,
"broadcastSocketError": this._defaultEvent,
"broadcastFailed": this._defaultEvent,
"broadcastSuccessed": this._defaultEvent,
"subscribeSocketConnected": this._defaultEvent,
"subscribeSocketError": this._defaultEvent,
"messageSuccessed": this._defaultEvent,
"setFilterParamSuccessed": this._defaultEvent,
scope: this
});
}
/**
* @function ol.supermap.DataFlowService.prototype.initBroadcast
* @description 初始化广播
* @returns {ol.supermap.DataFlowService}
*/
initBroadcast() {
this.dataFlow.initBroadcast();
return this;
}
/**
* @function ol.supermap.DataFlowService.prototype.broadcast
* @description 加载广播数据
* @param obj {JSON} json格式的要素数据
*/
broadcast(obj) {
this.dataFlow.broadcast(obj);
}
/**
* @function ol.supermap.DataFlowService.prototype.initSubscribe
* @description 初始化订阅数据
* @return {ol.supermap.DataFlowService}
*/
initSubscribe() {
this.dataFlow.initSubscribe();
return this;
}
/**
* @function ol.supermap.DataFlowService.prototype.setPrjCoordSys
* @description 设置动态投影坐标
* @param prjCoordSys -{Object} 动态投影参数
* @return {ol.supermap.DataFlowService}
*/
setPrjCoordSys(prjCoordSys) {
if (!prj) {
return;
}
var prj = new SuperMap.Projection(options.projection);
this.dataFlow.setPrjCoordSys(prj);
this.options.prjCoordSys = prj;
return this;
}
/**
* @function ol.supermap.DataFlowService.prototype.setExcludeField
* @description 设置排除字段
* @param excludeField - {Object} 排除字段
* @return {ol.supermap.DataFlowService}
*/
setExcludeField(excludeField) {
this.dataFlow.setExcludeField(excludeField);
this.options.excludeField = excludeField;
return this;
}
/**
* @function ol.supermap.DataFlowService.prototype.setGeometry
* @description 设置添加的几何要素数据
* @param geometry - {Array<Object>} 设置增添的几何要素对象数组。
* @return {ol.supermap.DataFlowService}
*/
setGeometry(geometry) {
this.dataFlow.setGeometry(geometry);
this.options.geometry = geometry;
return this;
}
/**
* @function ol.supermap.DataFlowService.prototype.unSubscribe
* @description 结束订阅数据
*/
unSubscribe() {
this.dataFlow.unSubscribe();
}
/**
* @function ol.supermap.DataFlowService.prototype.unBroadcast
* @description 结束加载广播
*/
unBroadcast() {
this.dataFlow.unBroadcast();
}
_defaultEvent(e) {
this.dispatchEvent({type: e.eventType || e.type, value: e});
}
}
ol.supermap.DataFlowService = DataFlowService;