org.kuali.kpme.core.ListConverter.java Source code

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Here is the source code for org.kuali.kpme.core.ListConverter.java

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/**
 * Copyright 2004-2014 The Kuali Foundation
 *
 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
 *
 * 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.kuali.kpme.core;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.apache.ojb.broker.accesslayer.conversions.ConversionException;
import org.apache.ojb.broker.accesslayer.conversions.FieldConversion;

public class ListConverter implements FieldConversion {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @Override
    public Object javaToSql(Object arg0) throws ConversionException {
        return arg0;
    }

    // To convert a string that contains selected values in checkbox group control or
    // multi select control in the database table to the back model property, 
    // which is a list type of primitives (usually string)
    @Override
    public Object sqlToJava(Object arg0) throws ConversionException {

        String selectedValues = arg0.toString();
        List<String> aList = new ArrayList<String>();

        selectedValues = StringUtils.removeStart(selectedValues, "[");
        selectedValues = StringUtils.removeEnd(selectedValues, "]");
        String[] values = StringUtils.split(selectedValues, ",");

        for (String value : values) {
            aList.add(StringUtils.strip(value, " ")); // strip whitespace from the start and end
        }

        return aList;
    }

}