Java tutorial
/** * 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 com.mockrunner.mock.web.MockHttpServletRequest; import com.mockrunner.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.setupAddParameter("layers", new String[] { "test:layer" }); request.setupAddParameter("srs", new String[] { "EPSG:4326" }); request.setupAddParameter("format", new String[] { "image/png8" }); request.setupAddParameter("width", width + ""); request.setupAddParameter("height", height + ""); request.setupAddParameter("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.getOutputStreamContent().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; } }