修改服务组件的实现 |
创建服务组件 中实现的服务组件接口和实现类需要做一些修改。
Temperature 服务组件接口修改如下：
package com.supermap.sample.temperature;
public interface Temperature {
String getTemperature(String cityName);
String getMapImage();
}
TemperatureImpl 接口实现类代码如下：
package com.supermap.sample.temperature;
import java.util.HashMap;
import java.util.List;
import com.supermap.services.components.Component;
import com.supermap.services.components.ComponentContext;
import com.supermap.services.components.ComponentContextAware;
import com.supermap.services.components.commontypes.*;
import com.supermap.services.components.spi.MapProvider;
@Component(providerTypes = { MapProvider.class, TemperatureProvider.class }, optional = false, type = "")
public class TemperatureImpl implements Temperature, ComponentContextAware {
private MapProvider mapProvider = null;
private TemperatureProvider temperatureProvider = null;
private MapParameter defaultMapParam = null;
public TemperatureImpl() {
}
@Override
public String getTemperature(String cityName) {
String temp = null;
try {
temp = temperatureProvider.GetTemperature(cityName);
} catch (Exception e) {
e.printStackTrace();
}
return temp;
}
@Override
public String getMapImage() {
String imageUrl = null;
if (defaultMapParam != null) {
ImageOutputOption imageOutputOption = new ImageOutputOption();
imageOutputOption.format = OutputFormat.JPG;
imageOutputOption.transparent = false;
ThemeLabel themeLabel = new ThemeLabel();
themeLabel.memoryData = new HashMap<String, String>();
String cityName = "北京";
String temp = cityName + "，" + getTemperature(cityName);
themeLabel.memoryData.put(cityName, temp);
themeLabel.labelExpression = "NAME";
themeLabel.labelBackShape = LabelBackShape.ROUNDRECT;
Style style = new Style();
style.fillBackColor = new Color(java.awt.Color.MAGENTA.getRed(), java.awt.Color.MAGENTA.getGreen(), java.awt.Color.MAGENTA.getBlue());
style.fillBackOpaque = true;
style.fillForeColor = new Color(java.awt.Color.YELLOW.getRed(), java.awt.Color.YELLOW.getGreen(), java.awt.Color.YELLOW.getBlue());
style.fillGradientMode = FillGradientMode.RADIAL;
themeLabel.backStyle = style;
TextStyle textStyle = new TextStyle();
textStyle.backColor = new Color(java.awt.Color.BLUE.getRed(), java.awt.Color.BLUE.getGreen(), java.awt.Color.BLUE.getBlue());
textStyle.fontWidth = 100000;
textStyle.fontHeight = 100000;
textStyle.align = TextAlignment.MIDDLECENTER;
themeLabel.uniformStyle = textStyle;
DatasetVectorInfo datasetVectorInfo = new DatasetVectorInfo();
datasetVectorInfo.name = "China_Capital_P";
datasetVectorInfo.type = DatasetType.POINT;
datasetVectorInfo.dataSourceName = "China";
UGCThemeLayer themelayer = new UGCThemeLayer();
themelayer.theme = themeLabel;
themelayer.datasetInfo = datasetVectorInfo.copy();
themelayer.visible = true;
themelayer.displayFilter = "NAME = '" + cityName + "'";
this.defaultMapParam.layers.get(0).subLayers.add(true, themelayer);
Point2D center = this.getPosition(cityName);
if (center != null) {
this.defaultMapParam.center = new Point2D(center);
this.defaultMapParam.rectifyType = RectifyType.BYCENTERANDMAPSCALE;
}
this.defaultMapParam.cacheEnabled = false;
this.defaultMapParam.scale = 0.00000003;
MapImage mapImage = mapProvider.getMapImage(this.defaultMapParam, imageOutputOption);
imageUrl = mapImage.imageUrl;
this.defaultMapParam.layers.get(0).subLayers.remove(themelayer.name);
}
return imageUrl;
}
private Point2D getPosition(String cityName) {
Point2D point2D = null;
QueryParameter queryParam = new QueryParameter();
queryParam.name = "China_Capital_pt@China";
QueryParameterSet queryParamSet = new QueryParameterSet();
queryParamSet.queryParams = new QueryParameter[1];
queryParamSet.queryParams[0] = queryParam;
queryParamSet.expectCount = 1;
queryParamSet.queryOption = QueryOption.ATTRIBUTEANDGEOMETRY;
queryParam.attributeFilter = "NAME like '%" + cityName + "%'";
QueryResult queryResult = this.mapProvider.queryBySQL(this.defaultMapParam.name, queryParamSet);
if (queryResult != null) {
if (queryResult.recordsets != null && queryResult.recordsets.length == 1) {
Recordset recordset = queryResult.recordsets[0];
// 首都为点图层，只有一个点位置信息
if (recordset.features != null && recordset.features.length > 0) {
Geometry geometry = recordset.features[0].geometry;
point2D = geometry.points[0];
}
}
}
return point2D;
}
public void setComponentContext(ComponentContext context) {
TemperatureParam param = context.getConfig(TemperatureParam.class);
if (param == null) {
throw new IllegalArgumentException("参数 TemperatureParam 不能为空");
}
List<Object> providers = context.getProviders(Object.class);
if (providers != null) {
for (Object provider : providers) {
if (provider instanceof TemperatureProvider) {
this.temperatureProvider = (TemperatureProvider) provider;
break;
}
}
for (Object provider : providers) {
if (provider instanceof MapProvider) {
this.mapProvider = (MapProvider) provider;
this.defaultMapParam = this.mapProvider.getMapParameter(param.getMapName());
this.defaultMapParam.viewer = new Rectangle(new Point(0, 0), new Point(800, 600));
}
}
}
}
}
实现 TemperatureParam，作为 Temperature 服务组件的配置信息，用于设置地图名称，代码如下：
package com.supermap.sample.temperature;
public class TemperatureParam {
private String mapName;
public void setMapName(String mapName) {
this.mapName = mapName;
}
public String getMapName() {
return mapName;
}
}
将所有代码编译之后，包含 class 文件的 com 目录（%SuperMap iServer_HOME%\samples\code\DSSE\Temperature_SPSC\bin\com），整个拷贝到 SuperMap iServer Web 应用下，即 %SuperMap iServer_HOME%webapps\iserver\WEB-INF\classes 下（先在该目录下新建 classes 文件夹）。