code/spi-support/src/test/java/org/apache/tamaya/spisupport/IntegerTestConverter.java

/*
 * 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 org.apache.tamaya.spisupport;

import java.util.Objects;

import org.apache.tamaya.spi.ConversionContext;
import org.apache.tamaya.spi.PropertyConverter;

/**
 * Created by William.Lieurance 2018-02-17
 */
public class IntegerTestConverter implements PropertyConverter<Integer> {

    @Override
    public Integer convert(String value, ConversionContext ctx) {
        ctx.addSupportedFormats(getClass(), "<int>");
        String trimmed = Objects.requireNonNull(value).trim();
        try {
            return Integer.decode(trimmed);
        } catch (NumberFormatException e) {
            return null;
        }

    }
}