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Jersey integration for Fernet token validation

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/**
   Copyright 2018 Carlos Macasaet

   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

       https://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 com.macasaet.fernet.jersey;

import javax.ws.rs.core.Feature;
import javax.ws.rs.core.FeatureContext;

import com.macasaet.fernet.jaxrs.exception.IllegalTokenExceptionMapper;
import com.macasaet.fernet.jaxrs.exception.TokenValidationExceptionMapper;

/**
 * {@link Feature} that enables Fernet payload injection into Resource method parameters. In order to use this, the
 * application will also need to register a custom {@link com.macasaet.fernet.Validator Validator} that extracts the
 * payload from the token and a {@link java.util.function.Supplier Supplier<Collection<Key>>} that provides
 * valid Fernet keys.
 *
 * Copyright © 2018 Carlos Macasaet.
 *
 * @author Carlos Macasaet
 * @see com.macasaet.fernet.jaxrs.FernetSecret
 */
public class FernetSecretFeature implements Feature {

    public boolean configure(final FeatureContext context) {
        context.register(new FernetSecretBinder());
        context.register(TokenValidationExceptionMapper.class);
        context.register(IllegalTokenExceptionMapper.class);
        return true;
    }

}