io.jsonwebtoken.impl.io.ConvertingParser Maven / Gradle / Ivy

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/*
 * Copyright © 2023 jsonwebtoken.io
 *
 * 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 io.jsonwebtoken.impl.io;

import io.jsonwebtoken.impl.lang.Converter;
import io.jsonwebtoken.impl.lang.Function;
import io.jsonwebtoken.lang.Assert;

import java.io.Reader;
import java.util.Map;

public class ConvertingParser extends AbstractParser {

    private final Function> deserializer;
    private final Converter converter;

    public ConvertingParser(Function> deserializer, Converter converter) {
        this.deserializer = Assert.notNull(deserializer, "Deserializer function cannot be null.");
        this.converter = Assert.notNull(converter, "Converter cannot be null.");
    }

    @Override
    public final T parse(Reader reader) {
        Assert.notNull(reader, "Reader cannot be null.");
        Map m = this.deserializer.apply(reader);
        return this.converter.applyFrom(m);
    }
}