/*
* GeoSolutions Android map Library - Digital field mapping on Android based devices
* Copyright (C) 2013 GeoSolutions (www.geo-solutions.it)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package it.geosolutions.android.map.mapstore.utils;
import it.geosolutions.android.map.MapsActivity;
import it.geosolutions.android.map.geostore.model.Resource;
import it.geosolutions.android.map.geostore.utils.GeoStoreClient;
import it.geosolutions.android.map.mapstore.model.MapStoreConfiguration;
import it.geosolutions.android.map.mapstore.model.MapStoreLayer;
import it.geosolutions.android.map.mapstore.model.MapStoreSource;
import it.geosolutions.android.map.model.Layer;
import it.geosolutions.android.map.utils.ProjectionUtils;
import it.geosolutions.android.map.wms.WMSLayer;
import it.geosolutions.android.map.wms.WMSSource;
import java.util.ArrayList;
import java.util.HashMap;
import org.mapsforge.core.model.GeoPoint;
import android.os.AsyncTask;
import android.util.Log;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonSyntaxException;
/**
* Utility class for MapStore configuration reading and management
* @author Lorenzo Natali (lorenzo.natali@geo-solutions.it)
*
*/
public class MapStoreUtils {
public final static String WMS_PTYPE ="gxp_wmssource";
public final static String PTYPE_MBTILES ="mbtiles";
public final static String PTYPE_SPATIALITE ="geojson";
/**
* Creates an async task to get and read a mapstore configuration from the geostore url.
*
* @param geoStoreUrl
* @param resource
* @param mapsActivity
* @return
*/
public static WMSLayer loadMapStoreConfig(final String geoStoreUrl,final Resource resource, final MapsActivity mapsActivity) {
if(resource ==null || geoStoreUrl== null){
//TODO notify
return null;
}
AsyncTask<String, String, MapStoreConfiguration> task= new MapStoreConfigTask(resource.id, geoStoreUrl){
@Override
protected void onPostExecute(MapStoreConfiguration result) {
Log.d("MapStore",result.toString());
//call the loadMapStore config on the Activity
mapsActivity.overlayManager.loadMapStoreConfig(result);
GeoPoint p = getPoint(result);
if(p!=null){
mapsActivity.setPosition(p, (byte)result.map.zoom);
}
}
};
task.execute("");
return null;
}
/**
* Check if the needed fields are present
* @param ms the configuration to check
* @return true if the configuration contains layers and sources
*/
public static boolean isValidConfiguration(MapStoreConfiguration ms) {
if(ms==null) return false;
if(ms.map==null)return false;
if(ms.map.layers==null)return false;
if(ms.sources ==null)return false;
return true;
}
/**
* Create list if <WMSLayer> from a <MapStoreConfiguration> object
* @param result
* @return
*/
public static ArrayList<Layer> buildWMSLayers(MapStoreConfiguration result) {
ArrayList<Layer> layers = new ArrayList<Layer>();
if(result != null){
HashMap<String,WMSSource> sources= new HashMap<String,WMSSource>();
if(result.sources==null) return layers;
for(String sourceID :result.sources.keySet()){
MapStoreSource s = result.sources.get(sourceID);
if(s!=null && isWMS(s, result.defaultSourceType)){
sources.put(sourceID,mapStoreSource2WMSSource(s,result.defaultSourceType));
}
}
for(MapStoreLayer l : result.map.layers){
WMSLayer ll = mapStoreLayer2Layer(l, sources);
//don't add layers without Source
if(ll== null) continue;
if(ll.getSource()==null){
result.map.layers.remove(l);
Log.w("MapStore","layer not added because the source is missing or not supported:"+ll.getName());
}else{
layers.add(ll);
}
}
Log.d("MapStore","converted layers:" + layers.size());
}
return layers;
}
/**
* Convert a MapStoreSource in a WMSSource
* @param mss
* @param defaultSourceType
* @return
*/
public static WMSSource mapStoreSource2WMSSource(MapStoreSource mss, String defaultSourceType){
boolean isWMS = isWMS(mss, defaultSourceType);
if(isWMS) {
WMSSource source = new WMSSource(mss.url);
if(mss.version != null){
source.baseParams.put("version",mss.version);
}
if(mss.version != null){
source.baseParams.put("version",mss.version);
}
//Override after all
if(mss.layerBaseParams != null){
for(String k:mss.layerBaseParams.keySet()){
source.baseParams.put(k, mss.layerBaseParams.get(k).toString());
}
}
return source;
}
return null;
}
/**
* Check if the ptype is a wms type. The default source type is managed to avoid missing ptypes for
* some configurations.
* @param mss the MapStore configuration
* @param defaultSourceType if ptype is null, the default ptype should be the wms one. in this case the layer is wms by default.
* @return
*/
public static boolean isWMS(MapStoreSource mss, String defaultSourceType) {
boolean isWMS =WMS_PTYPE.equals(mss.ptype) || (mss.ptype == null && WMS_PTYPE.equals(defaultSourceType));
return isWMS;
}
/**
* Put the proper layer configurations from a MapStore's one. Get the <WMSSource> from the map passed as parameter and
* create the <WMSLayer> using it.
* (The MapStore configuration contains the name of the source and the map passed as second parameter
* maps the names and the already converted sources )
* Set base params properly
* @param mlayer the <MapStoreLayer> to convert
* @param sources a map of WMSSources by name
* @return
*/
public static WMSLayer mapStoreLayer2Layer(MapStoreLayer mlayer,HashMap<String,WMSSource> sources){
if (sources==null){
Log.e("MapStore","unable any source for layer " + mlayer.name);
return null;
}
if(!sources.containsKey(mlayer.source)) {
Log.w("MapStore","unable to find the source for layer " + mlayer.name);
return null;
}
WMSLayer layer = new WMSLayer(sources.get(mlayer.source), mlayer.name);
layer.setTitle(mlayer.title);
layer.setGroup(mlayer.group);
//TODO Now skip tiled option
layer.setVisibility(mlayer.visibility);
layer.setTiled(mlayer.tiled!=null?mlayer.tiled:false);
//create base parameters
HashMap<String, String> baseParams = new HashMap<String, String>();
if(mlayer.format != null) baseParams.put("format", mlayer.format);
if(mlayer.styles != null) baseParams.put("styles",mlayer.styles );
if(mlayer.buffer != null) baseParams.put("buffer",mlayer.buffer.toString() );
if(mlayer.transparent != null) baseParams.put("transparent",mlayer.transparent );
layer.setBaseParams(baseParams);
return layer;
}
}