de.quantummaid.mapmaid.mapper.deserialization.Unmarshallers Maven / Gradle / Ivy

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/*
 * Copyright (c) 2020 Richard Hauswald - https://quantummaid.de/.
 *
 * 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 de.quantummaid.mapmaid.mapper.deserialization;

import de.quantummaid.mapmaid.mapper.marshalling.MarshallerRegistry;
import de.quantummaid.mapmaid.mapper.marshalling.MarshallingType;
import de.quantummaid.mapmaid.mapper.marshalling.Unmarshaller;
import de.quantummaid.mapmaid.mapper.universal.Universal;
import lombok.AccessLevel;
import lombok.EqualsAndHashCode;
import lombok.RequiredArgsConstructor;
import lombok.ToString;

import java.util.Set;

import static de.quantummaid.mapmaid.mapper.deserialization.UnmarshallingException.unmarshallingException;
import static de.quantummaid.mapmaid.mapper.universal.UniversalNull.universalNull;
import static de.quantummaid.mapmaid.shared.validators.NotNullValidator.validateNotNull;

@ToString
@EqualsAndHashCode
@RequiredArgsConstructor(access = AccessLevel.PRIVATE)
final class Unmarshallers {
    private final MarshallerRegistry unmarshallers;

    static Unmarshallers unmarshallers(final MarshallerRegistry unmarshallers) {
        validateNotNull(unmarshallers, "unmarshallers");
        return new Unmarshallers(unmarshallers);
    }

    Universal unmarshall(final String input,
                         final MarshallingType marshallingType) {
        validateNotNull(input, "input");
        if (input.isEmpty()) {
            return universalNull();
        }
        final Unmarshaller unmarshaller = this.unmarshallers.getForType(marshallingType);

        final String trimmedInput = input.trim();

        try {
            final Object unmarshalled = unmarshaller.unmarshal(trimmedInput);
            return Universal.fromNativeJava(unmarshalled);
        } catch (final Exception e) {
            throw unmarshallingException(input, e);
        }
    }

    Set supportedMarshallingTypes() {
        return this.unmarshallers.supportedTypes();
    }
}