org.simplejavamail.internal.clisupport.valueinterpreters.StringToContentTransferEncodingFunction Maven / Gradle / Ivy

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/*
 * Copyright © 2009 Benny Bottema ([email protected])
 *
 * 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 org.simplejavamail.internal.clisupport.valueinterpreters;

import lombok.val;
import org.bbottema.javareflection.valueconverter.IncompatibleTypeException;
import org.bbottema.javareflection.valueconverter.ValueFunction;
import org.jetbrains.annotations.NotNull;
import org.simplejavamail.api.email.ContentTransferEncoding;
import org.simplejavamail.api.mailer.config.TransportStrategy;

import java.util.Arrays;

public class StringToContentTransferEncodingFunction implements ValueFunction {

	@Override
	@NotNull
	public Class getFromType() {
		return String.class;
	}

	@Override
	@NotNull
	public Class getTargetType() {
		return ContentTransferEncoding.class;
	}

	@Override
	@NotNull
	public final ContentTransferEncoding convertValue(@NotNull final String value) {
		try {
			return ContentTransferEncoding.byEncoder(value);
		} catch (IllegalArgumentException eByEncoder) {
			try {
				return ContentTransferEncoding.valueOf(value);
			} catch (IllegalArgumentException eByEnumName) {
				val causes = Arrays.asList(
						new IncompatibleTypeException(value, String.class, ContentTransferEncoding.class, eByEncoder),
						new IncompatibleTypeException(value, String.class, ContentTransferEncoding.class, eByEnumName));
				throw new IncompatibleTypeException(value, String.class, TransportStrategy.class, causes);
			}
		}
	}
}