data/xulugridfile/GridFileDataLoader.java

package appl.parallel.data.xulugridfile;

import schmitzm.data.WritableGrid;
import appl.data.DataLoader;
import appl.data.LoadingException;

/**
 * This {@link DataLoader} is responsible to load data from a
 * {@link XuluGridFile}. When {@link #load()} is called it tries to load the
 * whole(!) grid into the memory. Notice that using this loader will destroy all
 * memory advantages of the {@link XuluGridFile}. It is intended as standard loader in
 * the xulu application. The user can therefore force the loading of the grid
 * into the local memory e.g. for visualization.
 * 
 * @author Dominik Appl
 */
public class GridFileDataLoader implements DataLoader {

        private final XuluGridFile gridFile;

        public GridFileDataLoader(XuluGridFile gridFile) {
                this.gridFile = gridFile;
        }

        /* (non-Javadoc)
         * @see appl.data.DataLoader#getLoadInfo()
         */
        public String getLoadInfo() {
                // TODO Auto-generated method stub
                return "Loading gridfile " + gridFile.getOutputFile().getPath() + ". ";
        }

        /** loads the whole grid into memory and returns it
         * @see appl.data.DataLoader#load()
         */
        public WritableGrid load() throws LoadingException {
                try {
                        return gridFile.getWholeGrid();
                } catch (XuluGridFileException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
                return null;
        }

}
1	mojays	2	package appl.parallel.data.xulugridfile;
2
3			import schmitzm.data.WritableGrid;
4			import appl.data.DataLoader;
5			import appl.data.LoadingException;
6
7			/**
8			* This {@link DataLoader} is responsible to load data from a
9			* {@link XuluGridFile}. When {@link #load()} is called it tries to load the
10			* whole(!) grid into the memory. Notice that using this loader will destroy all
11			* memory advantages of the {@link XuluGridFile}. It is intended as standard loader in
12			* the xulu application. The user can therefore force the loading of the grid
13			* into the local memory e.g. for visualization.
14			*
15			* @author Dominik Appl
16			*/
17			public class GridFileDataLoader implements DataLoader {
18
19			private final XuluGridFile gridFile;
20
21			public GridFileDataLoader(XuluGridFile gridFile) {
22			this.gridFile = gridFile;
23			}
24
25			/* (non-Javadoc)
26			* @see appl.data.DataLoader#getLoadInfo()
27			*/
28			public String getLoadInfo() {
29			// TODO Auto-generated method stub
30			return "Loading gridfile " + gridFile.getOutputFile().getPath() + ". ";
31			}
32
33			/** loads the whole grid into memory and returns it
34			* @see appl.data.DataLoader#load()
35			*/
36			public WritableGrid load() throws LoadingException {
37			try {
38			return gridFile.getWholeGrid();
39			} catch (XuluGridFileException e) {
40			// TODO Auto-generated catch block
41			e.printStackTrace();
42			}
43			return null;
44			}
45
46			}