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SymmetricDS is an open source database synchronization solution. It is platform-independent, web-enabled, and database-agnostic. SymmetricDS was first built to replicate changes between 'retail store' databases and ad centralized 'corporate' database.

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/*
 * Licensed to JumpMind Inc under one or more contributor 
 * license agreements.  See the NOTICE file distributed
 * with this work for additional information regarding 
 * copyright ownership.  JumpMind Inc licenses this file
 * to you under the GNU Lesser General Public License (the
 * "License"); you may not use this file except in compliance
 * with the License. 
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see           
 * .
 * 
 * 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.jumpmind.symmetric.model;

import java.io.IOException;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang.StringUtils;
import org.jumpmind.symmetric.csv.CsvReader;
import org.jumpmind.symmetric.util.CsvUtils;


/**
 * 
 */
abstract class AbstractCsvData {

    private Map parsedCsvData = null;

    // TODO This could probably become more efficient
    protected String[] getData(String key, String data) {
        if (!StringUtils.isBlank(data)) {
            try {
                if (parsedCsvData == null) {
                    parsedCsvData = new HashMap(2);
                }
                if (parsedCsvData.containsKey(key)) {
                    return parsedCsvData.get(key);
                } else {
                    CsvReader csvReader = CsvUtils.getCsvReader(new StringReader(data));
                    if (csvReader.readRecord()) {
                        String[] values = csvReader.getValues();
                        parsedCsvData.put(key, values);
                        return values;
                    } else {
                        throw new IllegalStateException(String.format("Could not parse the data passed in: %s", data));
                    }
                }
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        } else {
            return null;
        }
    }

}