org.seasar.fisshplate.core.element.Formula.java Source code

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Here is the source code for org.seasar.fisshplate.core.element.Formula.java

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/*
 *  Copyright 2009 happy_ryo.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */
package org.seasar.fisshplate.core.element;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.seasar.fisshplate.context.FPContext;
import org.seasar.fisshplate.exception.FPMergeException;
import org.seasar.fisshplate.util.StringUtil;
import org.seasar.fisshplate.wrapper.CellWrapper;

/**
 * ?????
 *
 * @author happy_ryo
 */
public class Formula extends AbstractCell {

    /**
     * ??
     *
     * @param cell ??
     */
    public Formula(CellWrapper cell) {
        super(cell);
    }

    private static final Pattern patternFormula = Pattern.compile("^\\s*\\#formula\\((.*)\\)");

    /*
     * (non-Javadoc)
     *
     * @see org.seasar.fisshplate.core.TemplateElement#merge(org.seasar.fisshplate.context.FPContext)
     */
    void mergeImpl(FPContext context, HSSFCell out) throws FPMergeException {
        String value = super.getCellValue().toString();
        Matcher matcher = patternFormula.matcher(value);
        matcher.find();
        String formula = matcher.group(1);
        if (isWritePicture(formula)) {
            out.setCellType(HSSFCell.CELL_TYPE_FORMULA);
            out.setCellFormula(formula);
        }
    }

    private boolean isWritePicture(String formula) {
        if (StringUtil.isEmpty(formula)) {
            return false;
        }
        return true;
    }

}