/**
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @author Arne Kepp, The Open Planning Project, Copyright 2008
*
*/
package org.geowebcache.service.wms;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.Date;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.List;
import junit.framework.TestCase;
import org.geowebcache.GeoWebCacheException;
import org.geowebcache.grid.BoundingBox;
import org.geowebcache.grid.GridSetBroker;
import org.geowebcache.grid.GridSubset;
import org.geowebcache.grid.GridSubsetFactory;
import org.geowebcache.grid.OutsideCoverageException;
import org.geowebcache.io.FileResource;
import org.geowebcache.layer.TileLayer;
import org.geowebcache.layer.TileLayerDispatcher;
import org.geowebcache.layer.wms.WMSLayer;
import org.geowebcache.stats.RuntimeStats;
import org.geowebcache.storage.DefaultStorageBroker;
import org.geowebcache.storage.StorageBroker;
import org.geowebcache.storage.StorageException;
import org.geowebcache.storage.TileObject;
import org.geowebcache.storage.blobstore.file.FileBlobStore;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
public class WMSTileFuserTest extends TestCase {
GridSetBroker gridSetBroker = new GridSetBroker(false, false);
public void testTileFuserResolution() throws Exception {
TileLayer layer = createWMSLayer();
// request fits inside -30.0,15.0,45.0,30
BoundingBox bounds = new BoundingBox(-25.0,17.0,40.0,22);
// One in between
int width = (int) bounds.getWidth() * 10;
int height= (int) bounds.getHeight() * 10;
GridSubset gridSubset = layer.getGridSubset(layer.getGridSubsets().iterator().next());
WMSTileFuser tileFuser = new WMSTileFuser(layer, gridSubset, bounds, width, height);
tileFuser.determineSourceResolution();
assertEquals(0.087890625, tileFuser.srcResolution, 0.087890625*0.001);
// Zoomed too far out
height = (int) bounds.getWidth() / 10;
width = (int) bounds.getWidth() / 10;
tileFuser = new WMSTileFuser(layer, gridSubset, bounds, width, height);
tileFuser.determineSourceResolution();
assertEquals(0,tileFuser.srcIdx);
// Zoomed too far in
height = (int) bounds.getWidth() * 10000;
width = (int) bounds.getWidth() * 10000;
tileFuser = new WMSTileFuser(layer, gridSubset, bounds, width, height);
tileFuser.determineSourceResolution();
assertEquals(10,tileFuser.srcIdx);
}
public void testTileFuserSubset() throws Exception {
TileLayer layer = createWMSLayer();
// request fits inside -30.0,15.0,45.0,30
BoundingBox bounds = new BoundingBox(-25.0,17.0,40.0,22);
// One in between
int width = (int) bounds.getWidth() * 10;
int height= (int) bounds.getHeight() * 10;
GridSubset gridSubset = layer.getGridSubset(layer.getGridSubsets().iterator().next());
WMSTileFuser tileFuser = new WMSTileFuser(layer, gridSubset, bounds, width, height);
tileFuser.determineSourceResolution();
tileFuser.determineCanvasLayout();
assertTrue(tileFuser.srcBounds.contains(bounds));
WMSTileFuser.PixelOffsets comparison = new WMSTileFuser.PixelOffsets();
//-228, -193, -56, -6
comparison.left=-228;
comparison.bottom=-193;
comparison.right=-56;
comparison.top=-6;
assertEquals(comparison.left, tileFuser.canvOfs.left);
assertEquals(comparison.bottom, tileFuser.canvOfs.bottom);
assertEquals(comparison.right, tileFuser.canvOfs.right);
assertEquals(comparison.top, tileFuser.canvOfs.top);
}
public void testTileFuserSuperset() throws Exception {
TileLayer layer = createWMSLayer();
// request larger than -30.0,15.0,45.0,30
BoundingBox bounds = new BoundingBox(-35.0,14.0,55.0,39);
// One in between
int width = (int) bounds.getWidth() * 25;
int height= (int) bounds.getHeight() * 25;
GridSubset gridSubset = layer.getGridSubset(layer.getGridSubsets().iterator().next());
WMSTileFuser tileFuser = new WMSTileFuser(layer, gridSubset, bounds, width, height);
tileFuser.determineSourceResolution();
tileFuser.determineCanvasLayout();
}
public void testWriteResponse() throws Exception {
final TileLayer layer = createWMSLayer();
// request larger than -30.0,15.0,45.0,30
BoundingBox bounds = new BoundingBox(-35.0,14.0,55.0,39);
// One in between
int width = (int) bounds.getWidth() * 25;
int height= (int) bounds.getHeight() * 25;
layer.getGridSubset(layer.getGridSubsets().iterator().next());
File temp = File.createTempFile("gwc", "wms");
temp.delete();
temp.mkdirs();
try {
TileLayerDispatcher dispatcher = new TileLayerDispatcher(gridSetBroker) {
@Override
public TileLayer getTileLayer(String layerName)
throws GeoWebCacheException {
return layer;
}
};
MockHttpServletRequest request = new MockHttpServletRequest();
request.addParameter("layers", new String[] { "test:layer" });
request.addParameter("srs", new String[] { "EPSG:4326" });
request.addParameter("format", new String[] { "image/png8" });
request.addParameter("width", width +"");
request.addParameter("height", height +"");
request.addParameter("bbox", bounds.toString());
final File imageTile = new File(getClass().getResource("/image.png").toURI());
StorageBroker broker = new DefaultStorageBroker(
new FileBlobStore(temp.getAbsolutePath()) {
@Override
public boolean get(TileObject stObj)
throws StorageException {
stObj.setBlob(new FileResource(imageTile));
stObj.setCreated((new Date()).getTime());
stObj.setBlobSize(1000);
return true;
}
}
);
WMSTileFuser tileFuser = new WMSTileFuser(dispatcher, broker, request);
// Selection of the ApplicationContext associated
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("appContextTest.xml");
tileFuser.setApplicationContext(context);
MockHttpServletResponse response = new MockHttpServletResponse();
tileFuser.writeResponse(response,
new RuntimeStats(1, Arrays.asList(1), Arrays.asList("desc")));
assertTrue(response.getContentAsString().length() > 0);
} finally {
temp.delete();
}
}
private WMSLayer createWMSLayer() {
String[] urls = {"http://localhost:38080/wms"};
List<String> formatList = new LinkedList<String>();
formatList.add("image/png");
Hashtable<String,GridSubset> grids = new Hashtable<String,GridSubset>();
GridSubset grid = GridSubsetFactory.createGridSubSet(gridSetBroker.WORLD_EPSG4326, new BoundingBox(-30.0,15.0,45.0,30), 0,10);
grids.put(grid.getName(), grid);
int[] metaWidthHeight = {3,3};
WMSLayer layer = new WMSLayer("test:layer", urls, "aStyle", "test:layer", formatList, grids, null, metaWidthHeight, "vendorparam=true", false, null);
layer.initialize(gridSetBroker);
return layer;
}
}