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/*-
 * ============LICENSE_START=======================================================
 *  Copyright (C) 2022-2023 Bell Canada. All rights reserved.
 * ================================================================================
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.api.main.exception;

import javax.ws.rs.core.Response;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.onap.policy.models.base.PfModelRuntimeException;
import org.onap.policy.models.errors.concepts.ErrorResponse;
import org.springframework.stereotype.Component;
import org.springframework.transaction.TransactionException;

@Aspect
@Component
public class ServiceExceptionHandler {

    /**
     * Handle any exceptions that are not already handled.
     * For e.g., runtime exceptions that could happen during SQL query execution related to data integrity etc.
     *
     * @param joinPoint the point of execution
     * @param exception the exception
     */
    @AfterThrowing(pointcut = "execution(* org.onap.policy.api.main.service.*.*(..))", throwing = "exception")
    public void handleServiceException(JoinPoint joinPoint, RuntimeException exception) {
        if (exception instanceof PolicyApiRuntimeException || exception instanceof PfModelRuntimeException) {
            throw exception;
        } else {
            final var errorResponse = new ErrorResponse();
            errorResponse.setResponseCode(Response.Status.INTERNAL_SERVER_ERROR);
            errorResponse.setErrorMessage(exception.getMessage());
            throw new PolicyApiRuntimeException(exception.getMessage(), exception.getCause(), errorResponse, null);
        }
    }

    /**
     * Handle DB Transaction related exceptions.
     * All service classes in org.onap.policy.api.main.service are transactional and autowiring these service classes
     * can cause TransactionException.
     * For e.g., JDBC connection failure occurs and failed to open transaction at service level
     *
     * @param joinPoint the point of execution
     * @param exception the exception
     */
    @AfterThrowing(pointcut = "execution(* org.onap.policy.api.main..*.*(..))", throwing = "exception")
    public void handleTransactionException(JoinPoint joinPoint, TransactionException exception) {
        final var errorResponse = new ErrorResponse();
        errorResponse.setResponseCode(Response.Status.INTERNAL_SERVER_ERROR);
        errorResponse.setErrorMessage(exception.getMessage());
        throw new PolicyApiRuntimeException(exception.getMessage(), exception.getCause(), errorResponse, null);
    }
}