001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.core.objectmatrix.calculation; 025 026 import org.ujmp.core.Coordinates; 027 import org.ujmp.core.Matrix; 028 import org.ujmp.core.annotation.Annotation; 029 import org.ujmp.core.annotation.DefaultAnnotation; 030 import org.ujmp.core.exceptions.MatrixException; 031 032 public class ExtractAnnotation extends AbstractObjectCalculation { 033 private static final long serialVersionUID = 1461447576658284276L; 034 035 private long[] size = null; 036 037 public ExtractAnnotation(Matrix m, int dim) { 038 super(dim, m); 039 size = Coordinates.copyOf(m.getSize()); 040 size[dim]--; 041 setAnnotation(new DefaultAnnotation(size)); 042 getAnnotation().setMatrixAnnotation(m.getMatrixAnnotation()); 043 044 if (dim == ROW) { 045 Annotation a = m.getAnnotation(); 046 if (a != null) { 047 Matrix ai = a.getDimensionMatrix(COLUMN); 048 ai = ai.deleteRows(Ret.NEW, 0); 049 getAnnotation().setDimensionMatrix(COLUMN, ai); 050 } 051 getAnnotation().setDimensionMatrix(ROW, m.selectRows(Ret.NEW, 0)); 052 } else if (dim == COLUMN) { 053 Annotation a = m.getAnnotation(); 054 if (a != null) { 055 Matrix ai = a.getDimensionMatrix(ROW); 056 ai = ai.selectColumns(Ret.NEW, 0); 057 getAnnotation().setDimensionMatrix(ROW, ai); 058 } 059 getAnnotation().setDimensionMatrix(COLUMN, m.selectColumns(Ret.NEW, 0)); 060 } else { 061 throw new MatrixException("only supported for 2D matrices"); 062 } 063 } 064 065 public Object getObject(long... coordinates) throws MatrixException { 066 coordinates = Coordinates.copyOf(coordinates); 067 coordinates[getDimension()]++; 068 return getSource().getAsObject(coordinates); 069 } 070 071 public long[] getSize() { 072 return size; 073 } 074 075 }