src/test/java/org/apache/sling/graphql/core/mocks/UppercaseScalarConverter.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.sling.graphql.core.mocks;

import org.apache.sling.graphql.api.ScalarConversionException;
import org.apache.sling.graphql.api.SlingScalarConverter;
import org.jetbrains.annotations.Nullable;

public class UppercaseScalarConverter implements SlingScalarConverter<String, String> {

    @Override
    public @Nullable String parseValue(@Nullable String input) throws ScalarConversionException {
        throw new ScalarConversionException("This converter is meant for output only");
    }

    @Override
    public @Nullable String serialize(@Nullable String value) throws ScalarConversionException {
        return value == null ? null : value.toUpperCase();
    }
}