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Kogito service invocation using REST - Quarkus

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/**
 *  Copyright 2020 Red Hat, Inc. and/or its affiliates.
 *
 *  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 org.acme.travels.services;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

import org.acme.travels.User;
import org.acme.travels.rest.UsersRemoteService;
import org.eclipse.microprofile.faulttolerance.Fallback;
import org.eclipse.microprofile.rest.client.inject.RestClient;

@ApplicationScoped
public class UserService {
    
    @Inject
    @RestClient
    UsersRemoteService usersRemoteService;

    @Fallback(fallbackMethod = "missingUser")
    public User get(String username) {
        return usersRemoteService.get(username);
    }
    
    public User missingUser(String username) {
        return null;
    }
}