org.jbasics.math.BigDecimalMatrixBuilder Maven / Gradle / Ivy
/*
* Copyright (c) 2009-2015
* IT-Consulting Stephan Schloepke (http://www.schloepke.de/)
* klemm software consulting Mirko Klemm (http://www.klemm-scs.com/)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.jbasics.math;
import org.jbasics.checker.ContractCheck;
import org.jbasics.pattern.builder.Builder;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
public class BigDecimalMatrixBuilder implements Builder {
private final List> storage;
private int currentRow = 0;
public BigDecimalMatrixBuilder() {
this.storage = new ArrayList>();
}
public BigDecimalMatrixBuilder withSize(int rows, int cols) {
set(rows, cols, BigDecimal.ZERO);
return this;
}
public BigDecimalMatrixBuilder set(final int row, final int column, final Number value) {
int x = ContractCheck.mustBeInRange(row, 1, Integer.MAX_VALUE, "row") - 1; //$NON-NLS-1$
int y = ContractCheck.mustBeInRange(column, 1, Integer.MAX_VALUE, "row") - 1; //$NON-NLS-1$
if (this.storage.size() <= x) {
// need to be extended by adding the missing rows
for (int i = x - this.storage.size(); i >= 0; i--) {
this.storage.add(new ArrayList());
}
}
List temp = this.storage.get(x);
if (temp.size() <= y) {
// need to be extended by adding the missing rows
for (int i = y - temp.size(); i >= 0; i--) {
temp.add(BigDecimal.ZERO);
}
}
temp.set(y, value == null ? BigDecimal.ZERO : value);
return this;
}
public BigDecimalMatrixBuilder withRow(BigDecimal... values) {
this.currentRow++;
if (values != null) {
for (int i = 0; i < values.length; i++) {
set(this.currentRow, i + 1, values[i]);
}
}
return this;
}
public BigDecimalMatrixBuilder withRowFromLongs(long... values) {
this.currentRow++;
if (values != null) {
for (int i = 0; i < values.length; i++) {
set(this.currentRow, i + 1, BigDecimal.valueOf(values[i]));
}
}
return this;
}
public BigDecimalMatrixBuilder withRowFromDoubles(double... values) {
this.currentRow++;
if (values != null) {
for (int i = 0; i < values.length; i++) {
set(this.currentRow, i + 1, BigDecimal.valueOf(values[i]));
}
}
return this;
}
public BigDecimalMatrixBuilder withRowFromNumbers(Number... values) {
this.currentRow++;
if (values != null) {
for (int i = 0; i < values.length; i++) {
set(this.currentRow, i + 1, values[i]);
}
}
return this;
}
public BigDecimalMatrixBuilder withRowFromStrings(String... values) {
this.currentRow++;
if (values != null) {
for (int i = 0; i < values.length; i++) {
String temp = values[i];
set(this.currentRow, i + 1, temp == null ? BigDecimal.ZERO : new BigDecimal(temp));
}
}
return this;
}
public void reset() {
this.storage.clear();
this.currentRow = 0;
}
public BigDecimalMatrix build() {
return new BigDecimalMatrix(this.storage);
}
}
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