efx.util.converter.DoubleStringConverter.java Source code

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Here is the source code for efx.util.converter.DoubleStringConverter.java

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/*
 * Copyright 2013-2016 the original author or authors.
 *
 * 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 efx.util.converter;

import org.apache.commons.lang3.StringUtils;

/**
 * DoubleString?
 * @author Franklyn Donald <lovefree103@gmail.com>
 *
 */
public class DoubleStringConverter extends BaseConverter {

    @Override
    protected Object cast(Object obj) {
        if (obj == null) {
            return null;
        }
        if (obj instanceof Double) {
            return obj.toString();
        } else if (obj instanceof String) {
            String strValue = String.valueOf(obj);
            if (StringUtils.isNotEmpty(strValue)) {
                return Double.parseDouble(strValue);
            }
        }
        return super.cast(obj);
    }

}