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.datematrix.impl; 025 026 import java.util.Arrays; 027 import java.util.Date; 028 029 import org.ujmp.core.Matrix; 030 import org.ujmp.core.datematrix.DateMatrix; 031 import org.ujmp.core.datematrix.stub.AbstractDenseDateMatrix2D; 032 import org.ujmp.core.exceptions.MatrixException; 033 import org.ujmp.core.interfaces.HasColumnMajorDateArray1D; 034 035 public class DefaultDenseDateMatrix2D extends AbstractDenseDateMatrix2D implements 036 HasColumnMajorDateArray1D { 037 private static final long serialVersionUID = -3145074963888564555L; 038 039 private Date[] values = null; 040 041 private long[] size = null; 042 043 private int rows = 0; 044 045 private int cols = 0; 046 047 public DefaultDenseDateMatrix2D(Matrix m) throws MatrixException { 048 this.rows = (int) m.getRowCount(); 049 this.cols = (int) m.getColumnCount(); 050 this.size = new long[] { rows, cols }; 051 if (m instanceof DefaultDenseDateMatrix2D) { 052 Date[] v = ((DefaultDenseDateMatrix2D) m).values; 053 this.values = new Date[v.length]; 054 System.arraycopy(v, 0, this.values, 0, v.length); 055 } else { 056 this.values = new Date[rows * cols]; 057 for (long[] c : m.allCoordinates()) { 058 setDate(m.getAsDate(c), c); 059 } 060 } 061 } 062 063 public DefaultDenseDateMatrix2D(long... size) { 064 this.rows = (int) size[ROW]; 065 this.cols = (int) size[COLUMN]; 066 this.size = new long[] { rows, cols }; 067 this.values = new Date[rows * cols]; 068 Arrays.fill(values, DateMatrix.DATE0); 069 } 070 071 public DefaultDenseDateMatrix2D(Date[] v, int rows, int cols) { 072 this.rows = rows; 073 this.cols = cols; 074 this.size = new long[] { rows, cols }; 075 this.values = v; 076 } 077 078 public long[] getSize() { 079 return size; 080 } 081 082 public long getRowCount() { 083 return rows; 084 } 085 086 public long getColumnCount() { 087 return cols; 088 } 089 090 public Date getDate(long row, long column) { 091 return values[(int) (column * rows + row)]; 092 } 093 094 public void setDate(Date value, long row, long column) { 095 values[(int) (column * rows + row)] = value; 096 } 097 098 public Date getDate(int row, int column) { 099 return values[column * rows + row]; 100 } 101 102 public void setDate(Date value, int row, int column) { 103 values[column * rows + row] = value; 104 } 105 106 public final Matrix copy() throws MatrixException { 107 Date[] result = new Date[values.length]; 108 System.arraycopy(values, 0, result, 0, values.length); 109 Matrix m = new DefaultDenseDateMatrix2D(result, rows, cols); 110 if (getAnnotation() != null) { 111 m.setAnnotation(getAnnotation().clone()); 112 } 113 return m; 114 } 115 116 public final Matrix transpose() { 117 final Date[] result = new Date[cols * rows]; 118 for (int c = rows; --c != -1;) { 119 for (int r = cols; --r != -1;) { 120 result[c * cols + r] = values[r * rows + c]; 121 } 122 } 123 return new DefaultDenseDateMatrix2D(result, cols, rows); 124 } 125 126 public Date[] getColumnMajorDateArray1D() { 127 return values; 128 } 129 130 }