org.soulwing.jawb.poi.ApachePoiExtractor.java Source code

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Here is the source code for org.soulwing.jawb.poi.ApachePoiExtractor.java

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/*
 * File created on Dec 21, 2013 
 *
 * Copyright (c) 2013 Carl Harris, Jr.
 *
 * 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.
 *
 */
package org.soulwing.jawb.poi;

import java.io.IOException;
import java.io.InputStream;

import javax.validation.Validator;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.soulwing.jawb.WorkbookBindingException;
import org.soulwing.jawb.WorkbookExtractor;
import org.soulwing.jawb.spi.AbstractWorkbookExtractor;
import org.soulwing.jawb.spi.BoundWorkbook;
import org.soulwing.jawb.spi.Evaluator;

/**
 * A {@link WorkbookExtractor} implementation based on Apache POI.
 *
 * @author Carl Harris
 */
public class ApachePoiExtractor extends AbstractWorkbookExtractor {

    /**
     * Constructs a new instance.
     * @param evaluator
     */
    public ApachePoiExtractor(Evaluator evaluator) {
        super(evaluator);
    }

    public BoundWorkbook newWorkbook(InputStream inputStream, Validator validator)
            throws WorkbookBindingException, IOException {
        try {
            OPCPackage pkg = OPCPackage.open(inputStream);
            XSSFWorkbook workbook = new XSSFWorkbook(pkg);
            return new ApachePoiWorkbook(workbook, validator);
        } catch (InvalidFormatException ex) {
            throw new WorkbookBindingException(ex);
        }
    }

}