wms服务器加载顺序

world wind wms服务器缓存路径：

C:\ProgramData\Application Data\WorldWindData

read avList:

{gov.nasa.worldwind.avkey.FileStoreLocation=C:\Users\cjl\Application Data\WorldWindData, gov.nasa.worldwind.avkey.Installed=false}

write avList:

gov.nasa.worldwind.avkey.FileStoreLocation=C:\ProgramData\Application Data\WorldWindData

(1)wms数据查找线程:

gov.nasa.worldwind.servers.wms。WMSDataDiscoveryThread

(2)瓦片图层数据源：

public class WorldWindTiledLayerMapSource extends DataConfigurationMapSource

DataConfigurationMapSource:

this.name = this.params.getStringValue(AVKey.DATASET_NAME);

this.title = this.params.getStringValue(AVKey.DISPLAY_NAME);

this.keywords = this.params.getStringValue( AVKey.LAYER_NAMES );

String storePath = this.params.getStringValue( AVKey.DATA_CACHE_NAME );

this.lastUpdate = this.parseLastUpdate( this.params.getStringValue( AVKey.LAST_UPDATE ) );

this.lastUpdate = this.params.getValue( AVKey.EXPIRY_TIME ).toString();

(3)获取数据源:

 BasicMapSourceFactory

 MapSource ms;

        if (AVKey.SERVICE_NAME_LOCAL_RASTER_SERVER.equals(serviceName))

        {

            ms = new WorldWindTiledLayerMapSource(this.app.getDataFileStore(),

                    domElement, params, RasterServerBackedTiledLayer.class);

        }

        else

        {

            ms = new WorldWindTiledLayerMapSource(this.app.getDataFileStore(),

                    domElement, params, WorldWindTiledLayer.class);

        }

(4)数据源注册：

BasicMapRegistry:

 protected void doLayerAdded(WMSLayerEvent e)

    {

        Object source = e.getConfigurationSource();

        if (WWUtil.isEmpty(source))

        {

            String message = Logging.getMessage("nullValue.SourceIsNull");

            Logging.logger().severe(message);

            throw new WWRuntimeException(message);

        }

        if (this.dataConfigMapSources.containsKey(source))

        {

            String message = Logging.getMessage("generic.DuplicateLayerFound", source);

            Logging.logger().severe(message);

            throw new WWRuntimeException(message);

        }

        MapSource mapSource = this.createDataConfigurationMapSource(e);

        if (null == mapSource)

        {

            String message = Logging.getMessage("generic.UnrecognizedSourceType", source);

            Logging.logger().severe(message);

            throw new WWRuntimeException(message);

        }

        this.add(mapSource);

        this.dataConfigMapSources.put(e.getConfigurationSource(), mapSource);

        Logging.logger().info(Logging.getMessage("generic.LayerAdded", source));

    }