XPLANBOX-2608 - added method to clear cache

deegree-core/deegree-core-gdal/src/main/java/org/deegree/commons/gdal/GdalDatasetPool.java

@@ -105,4 +105,8 @@ void shutdown() {
 		}
 	}
 
+	public void removeAndClose(File file) throws IOException {
+		pool.removeAndClose(file.getCanonicalFile().toString());
+	}
+
 }

deegree-core/deegree-core-gdal/src/main/java/org/deegree/commons/gdal/pool/LimitedKeyedResourcePool.java

@@ -27,6 +27,7 @@
 ----------------------------------------------------------------------------*/
 package org.deegree.commons.gdal.pool;
 
+import static org.apache.commons.io.IOUtils.closeQuietly;
 import static org.slf4j.LoggerFactory.getLogger;
 
 import java.io.Closeable;
@@ -153,4 +154,12 @@ private synchronized BlockingQueue<T> getQueue(final String key) {
 		return queue;
 	}
 
+	public void removeAndClose(final String key) {
+		LOG.debug("Destroying resource, key: " + key);
+		BlockingQueue<T> queue = getQueue(key);
+		T resource = queue.poll();
+		closeQuietly(resource);
+		keyTracker.remove(key);
+	}
+
 }

deegree-datastores/deegree-tilestores/deegree-tilestore-gdal/src/main/java/org/deegree/tile/persistence/gdal/GdalTileDataLevel.java

@@ -28,6 +28,7 @@
 package org.deegree.tile.persistence.gdal;
 
 import java.io.File;
+import java.io.IOException;
 import java.util.List;
 
 import org.deegree.commons.gdal.GdalDataset;
@@ -47,7 +48,7 @@
  * @author <a href="mailto:schneider@occamlabs.de">Markus Schneider</a>
  * @since 3.4
  */
-class GdalTileDataLevel implements TileDataLevel {
+public class GdalTileDataLevel implements TileDataLevel {
 
 	private final TileMatrix metadata;
 
@@ -120,4 +121,8 @@ public List<String> getStyles() {
 		return null;
 	}
 
+	public void clearPool() throws IOException {
+		gdalSettings.getDatasetPool().removeAndClose(file);
+	}
+
 }