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 java.util.Collection; 027 028 import org.ujmp.core.Matrix; 029 import org.ujmp.core.annotation.Annotation; 030 import org.ujmp.core.annotation.DefaultAnnotation; 031 import org.ujmp.core.exceptions.MatrixException; 032 import org.ujmp.core.util.MathUtil; 033 import org.ujmp.core.util.StringUtil; 034 035 public class Selection extends AbstractObjectCalculation { 036 private static final long serialVersionUID = 4576183558391811345L; 037 038 private long[][] selection = null; 039 040 public Selection(Matrix m, String selectionString) { 041 this(m, StringUtil.parseSelection(selectionString, m.getSize())); 042 } 043 044 public Selection(Matrix m, Collection<? extends Number>... selection) { 045 super(m); 046 this.selection = new long[selection.length][]; 047 if (selection[ROW] != null) { 048 this.selection[ROW] = MathUtil.collectionToLong(selection[ROW]); 049 } 050 if (selection[COLUMN] != null) { 051 this.selection[COLUMN] = MathUtil.collectionToLong(selection[COLUMN]); 052 } 053 createAnnotation(); 054 } 055 056 public Selection(Matrix m, long[]... selection) { 057 super(m); 058 this.selection = selection; 059 createAnnotation(); 060 } 061 062 private void createAnnotation() { 063 if (getSource().getDimensionCount() != 2) { 064 throw new MatrixException("only supported for 2d matrices"); 065 } 066 Annotation a = getSource().getAnnotation(); 067 if (a != null) { 068 Annotation anew = new DefaultAnnotation(getSize()); 069 anew.setMatrixAnnotation(a.getMatrixAnnotation()); 070 if (selection[ROW] == null) { 071 long rowCount = getSource().getRowCount(); 072 for (int r = 0; r < rowCount; r++) { 073 anew.setAxisAnnotation(Matrix.COLUMN, a.getAxisAnnotation(Matrix.COLUMN, r, 0), 074 r, 0); 075 } 076 } else { 077 for (int r = 0; r < selection[ROW].length; r++) { 078 anew.setAxisAnnotation(Matrix.COLUMN, a.getAxisAnnotation(Matrix.COLUMN, 079 selection[ROW][r], 0), r, 0); 080 } 081 } 082 if (selection[COLUMN] == null) { 083 long colCount = getSource().getColumnCount(); 084 for (int c = 0; c < colCount; c++) { 085 anew.setAxisAnnotation(Matrix.ROW, a.getAxisAnnotation(Matrix.ROW, 0, c), 0, c); 086 } 087 } else { 088 for (int c = 0; c < selection[COLUMN].length; c++) { 089 anew.setAxisAnnotation(Matrix.ROW, a.getAxisAnnotation(Matrix.ROW, 0, 090 selection[COLUMN][c]), 0, c); 091 } 092 } 093 setAnnotation(anew); 094 } 095 } 096 097 public Object getObject(long... coordinates) throws MatrixException { 098 if (selection[ROW] != null && selection[COLUMN] != null) { 099 return getSource().getAsObject(selection[ROW][(int) coordinates[ROW]], 100 selection[COLUMN][(int) coordinates[COLUMN]]); 101 } else { 102 if (selection[ROW] == null) { 103 return getSource().getAsObject(coordinates[ROW], 104 selection[COLUMN][(int) coordinates[COLUMN]]); 105 } else { 106 return getSource().getAsObject(selection[ROW][(int) coordinates[ROW]], 107 coordinates[COLUMN]); 108 } 109 } 110 } 111 112 public long[] getSize() { 113 if (selection[ROW] != null && selection[COLUMN] != null) { 114 return new long[] { selection[ROW].length, selection[COLUMN].length }; 115 } else { 116 if (selection[ROW] == null) { 117 return new long[] { getSource().getRowCount(), selection[COLUMN].length }; 118 } else { 119 return new long[] { selection[ROW].length, getSource().getColumnCount() }; 120 } 121 } 122 } 123 124 public void setObject(Object value, long... coordinates) throws MatrixException { 125 if (selection[ROW] != null && selection[COLUMN] != null) { 126 getSource().setAsObject(value, selection[ROW][(int) coordinates[ROW]], 127 selection[COLUMN][(int) coordinates[COLUMN]]); 128 } else { 129 if (selection[ROW] == null) { 130 getSource().setAsObject(value, coordinates[ROW], 131 selection[COLUMN][(int) coordinates[COLUMN]]); 132 } else { 133 getSource().setAsObject(value, selection[ROW][(int) coordinates[ROW]], 134 coordinates[COLUMN]); 135 } 136 } 137 } 138 139 }