net.sf.jasperreports.data.cache.BigDecimalStore.java Source code

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Here is the source code for net.sf.jasperreports.data.cache.BigDecimalStore.java

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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.jasperreports.data.cache;

import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * @author Lucian Chirita (lucianc@users.sourceforge.net)
 */
public class BigDecimalStore implements BufferColumnStore {

    private static final Log log = LogFactory.getLog(BigDecimalStore.class);

    private final BigIntegerStore valueStore;
    private final LongArrayStore scaleStore;

    public BigDecimalStore(int size) {
        valueStore = new BigIntegerStore(size);
        scaleStore = new LongArrayStore(size);

        if (log.isDebugEnabled()) {
            log.debug(this + ": created value store " + valueStore);
            log.debug(this + ": created scale store " + scaleStore);
        }
    }

    @Override
    public Class<?> getBaseValuesType() {
        return BigDecimal.class;
    }

    @Override
    public void addValue(Object object) {
        if (!(object instanceof BigDecimal)) {
            throw new IllegalArgumentException();
        }

        BigDecimal value = (BigDecimal) object;
        BigInteger unscaledValue = value.unscaledValue();
        int scale = value.scale();

        valueStore.addValue(unscaledValue);
        scaleStore.addValue(scale);
    }

    @Override
    public boolean full() {
        return valueStore.full() || scaleStore.full();
    }

    @Override
    public void resetValues() {
        valueStore.resetValues();
        scaleStore.resetValues();
    }

    @Override
    public ColumnValues createValues() {
        // TODO lucianc check empty
        ColumnValues unscaledValues = valueStore.createValues();
        ColumnValues scaleValues = scaleStore.createValues();
        return new BigDecimalValues(unscaledValues, scaleValues);
    }

    @Override
    public String toString() {
        return "BigDecimalStore@" + hashCode();
    }

}