appl/data/FactoryLoader.java

package appl.data;

import schmitzm.data.WritableGrid;
import appl.util.RasterMetaData;
import edu.bonn.xulu.plugin.io.grid.WritableGridFactory;

/**
 * This is an implementation of a loader class which loads data with a
 * {@link WritableGridFactory}. It is used for Late Loading.
 * 
 * @author Dominik Appl
 * @see WritableGridLLProxy
 */
public class FactoryLoader implements DataLoader {

        private WritableGridFactory fac;

        private RasterMetaData metaData;

        private FactoryLoader() {
        }

        /**
         * @param factory
         *            the factory which is used for instantiation
         * @param metaData
         *            the meta data is required for grid instantiation
         */
        public FactoryLoader(WritableGridFactory factory, RasterMetaData metaData) {
                fac = factory;
                this.metaData = metaData;
        }

        /*
         * (non-Javadoc)
         * 
         * @see appl.data.DataLoader#load()
         */
        public WritableGrid load() {
                return fac.newInstance(metaData.getDataType(), metaData.getWidth(),
                                metaData.getHeight(), metaData.getMinX(), metaData.getMinY(),
                                metaData.getX(), metaData.getY(), metaData.getRealWidth(),
                                metaData.getRealHeight(), metaData
                                                .getCoordinateReferenceSystem());
        }

        /*
         * (non-Javadoc)
         * 
         * @see appl.data.DataLoader#getLoadInfo()
         */
        public String getLoadInfo() {
                return "FactoryLoader|" + fac + "|" + metaData;
        }

}
1	package appl.data;
2
3	import schmitzm.data.WritableGrid;
4	import appl.util.RasterMetaData;
5	import edu.bonn.xulu.plugin.io.grid.WritableGridFactory;
6
7	/**
8	* This is an implementation of a loader class which loads data with a
9	* {@link WritableGridFactory}. It is used for Late Loading.
10	*
11	* @author Dominik Appl
12	* @see WritableGridLLProxy
13	*/
14	public class FactoryLoader implements DataLoader {
15
16	private WritableGridFactory fac;
17
18	private RasterMetaData metaData;
19
20	private FactoryLoader() {
21	}
22
23	/**
24	* @param factory
25	* the factory which is used for instantiation
26	* @param metaData
27	* the meta data is required for grid instantiation
28	*/
29	public FactoryLoader(WritableGridFactory factory, RasterMetaData metaData) {
30	fac = factory;
31	this.metaData = metaData;
32	}
33
34	/*
35	* (non-Javadoc)
36	*
37	* @see appl.data.DataLoader#load()
38	*/
39	public WritableGrid load() {
40	return fac.newInstance(metaData.getDataType(), metaData.getWidth(),
41	metaData.getHeight(), metaData.getMinX(), metaData.getMinY(),
42	metaData.getX(), metaData.getY(), metaData.getRealWidth(),
43	metaData.getRealHeight(), metaData
44	.getCoordinateReferenceSystem());
45	}
46
47	/*
48	* (non-Javadoc)
49	*
50	* @see appl.data.DataLoader#getLoadInfo()
51	*/
52	public String getLoadInfo() {
53	return "FactoryLoader\|" + fac + "\|" + metaData;
54	}
55
56	}