aswi2020vldc-gitlab/src/main/java/vldc/aswi/service/AssemblyManagerImpl.java @ 2868bb9a

package vldc.aswi.service;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Service;
import vldc.aswi.dao.AssemblyRepository;
import vldc.aswi.domain.Assembly;

import javax.transaction.Transactional;
import java.util.LinkedList;
import java.util.List;

@Service
@Slf4j
public class AssemblyManagerImpl implements AssemblyManager {

    /** Autowired assembly repository. */
    @Autowired
    private AssemblyRepository assemblyRepository;

    /**
     * Initialization setup for assembly manager. Check if assembly repository contains
     * records and if not, initialize default values.
     */
    @EventListener(classes = {
            ContextRefreshedEvent.class
    })
    @Order(1)
    @Transactional
    public void setup() {
        if (this.assemblyRepository.count() == 0) {
            log.info("No assembly present, creating items.");

        }
    }

    /**
     * Get all Assemblies from database.
     * @return List of assemblies.
     */
    @Override
    public List<Assembly> getAssemblies() {
        List<Assembly> retVal = new LinkedList<>();
        this.assemblyRepository.findAll().forEach(retVal::add);
        return retVal;
    }

    @Override
    public Assembly getAssemblyById(Long id) {
        return assemblyRepository.getById(id);
    }
}