FooBarConverter.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.struts2.conversion.impl;

import org.apache.struts2.util.AnnotatedCat;
import org.apache.struts2.util.Bar;
import org.apache.struts2.util.Cat;

import java.lang.reflect.Member;
import java.util.Map;

public class FooBarConverter extends DefaultTypeConverter {

    @Override
    public Object convertValue(Map<String, Object> context, Object value, Class toType) {
        if (toType == String.class) {
            Bar bar = (Bar) value;

            return bar.getTitle() + ":" + bar.getSomethingElse();
        } else if (toType == Bar.class) {
            String valueStr = (String) value;
            int loc = valueStr.indexOf(":");
            String title = valueStr.substring(0, loc);
            String rest = valueStr.substring(loc + 1);

            Bar bar = new Bar();
            bar.setTitle(title);
            bar.setSomethingElse(Integer.parseInt(rest));

            return bar;
        } else if (toType == Cat.class) {
            Cat cat = new Cat();
            cat.setName((String) value);

            return cat;
        } else if (toType == AnnotatedCat.class) {
            AnnotatedCat cat = new AnnotatedCat();
            cat.setName((String) value);

            return cat;
        } else {
            System.out.println("Don't know how to convert between " + value.getClass().getName() +
                    " and " + toType.getName());
        }

        return null;
    }

    @Override
    public Object convertValue(Map<String, Object> context, Object source, Member member, String property, Object value, Class toClass) {
        return convertValue(context, value, toClass);
    }
}