io.microsphere.convert.multiple.StringToMultiValueConverter Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 io.microsphere.convert.multiple;
import io.microsphere.util.ArrayUtils;
import static io.microsphere.util.StringUtils.isEmpty;
import static io.microsphere.util.StringUtils.split;
/**
* The class to convert {@link String} to multiple value object
*
* @see MultiValueConverter
* @since 1.0.0
*/
public interface StringToMultiValueConverter extends MultiValueConverter {
@Override
default Object convert(String source, Class multiValueType, Class elementType) {
if (isEmpty(source)) {
return null;
}
// split by the comma
String[] segments = split(source, ',');
if (ArrayUtils.isEmpty(segments)) { // If empty array, create an array with only one element
segments = new String[]{source};
}
int size = segments.length;
return convert(segments, size, multiValueType, elementType);
}
/**
* Convert the segments to multiple value object
*
* @param segments the String array of content
* @param size the size of multiple value object
* @param targetType the target type
* @param elementType the element type
* @return multiple value object
*/
Object convert(String[] segments, int size, Class targetType, Class elementType);
}