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REST API interface for Jikkou

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/*
 * Copyright 2023 The original authors
 *
 * 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.streamthoughts.jikkou.rest.exception.handlers;

import io.micronaut.context.annotation.Primary;
import io.micronaut.context.annotation.Requires;
import io.micronaut.http.HttpRequest;
import io.micronaut.http.HttpResponse;
import io.micronaut.http.HttpStatus;
import io.micronaut.http.annotation.Produces;
import io.micronaut.http.server.exceptions.ExceptionHandler;
import io.micronaut.security.authentication.AuthorizationException;
import io.streamthoughts.jikkou.rest.data.ErrorEntity;
import io.streamthoughts.jikkou.rest.data.ErrorResponse;
import io.streamthoughts.jikkou.rest.data.errors.Errors;
import jakarta.inject.Singleton;
import java.util.List;

@Produces
@Singleton
@Requires(classes = {AuthorizationException.class, ExceptionHandler.class})
@Primary
public class AuthorizationExceptionHandler implements ExceptionHandler> {

    /**
     * {{@inheritDoc}
     **/
    @Override
    public HttpResponse handle(HttpRequest request, AuthorizationException exception) {
        ErrorEntity error = new ErrorEntity(
                HttpStatus.UNAUTHORIZED.getCode(),
                Errors.AUTHENTICATION_USER_UNAUTHORIZED,
                HttpStatus.UNAUTHORIZED.getReason()
        );
        return HttpResponse.unauthorized().body(new ErrorResponse("Unauthorized", List.of(error)));
    }
}