com.nike.cerberus.service.RoleService.java Source code

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Here is the source code for com.nike.cerberus.service.RoleService.java

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/*
 * Copyright (c) 2016 Nike, Inc.
 *
 * 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 com.nike.cerberus.service;

import com.google.common.collect.Lists;
import com.nike.cerberus.dao.RoleDao;
import com.nike.cerberus.domain.Role;
import com.nike.cerberus.record.RoleRecord;

import javax.inject.Inject;
import javax.inject.Singleton;
import java.util.List;
import java.util.Optional;

/**
 * Business logic for interacting with roles
 */
@Singleton
public class RoleService {

    private final RoleDao roleDao;

    @Inject
    public RoleService(final RoleDao roleDao) {
        this.roleDao = roleDao;
    }

    /**
     * Retrieves all roles from the data store and returns them.
     *
     * @return List of role domain objects.
     */
    public List<Role> getAllRoles() {
        final List<RoleRecord> roleRecords = roleDao.getAllRoles();
        final List<Role> roles = Lists.newArrayListWithCapacity(roleRecords.size());

        roleRecords.forEach(r -> roles.add(new Role().setId(r.getId()).setName(r.getName())
                .setCreatedBy(r.getCreatedBy()).setLastUpdatedBy(r.getLastUpdatedBy())
                .setCreatedTs(r.getCreatedTs()).setLastUpdatedTs(r.getLastUpdatedTs())));

        return roles;
    }

    /**
     * Retrieves the specific role by ID.
     *
     * @param id The identifier for the role to retrieve.
     * @return The role, if it exists.
     */
    public Optional<Role> getRoleById(final String id) {
        final Optional<RoleRecord> record = roleDao.getRoleById(id);

        if (record.isPresent()) {
            return Optional.of(new Role().setId(record.get().getId()).setName(record.get().getName())
                    .setCreatedBy(record.get().getCreatedBy()).setLastUpdatedBy(record.get().getLastUpdatedBy())
                    .setCreatedTs(record.get().getCreatedTs()).setLastUpdatedTs(record.get().getLastUpdatedTs()));
        }

        return Optional.empty();
    }

    /**
     * Retieves the specific role by name.
     *
     * @param name The name of the role to retrieve.
     * @return The role, if it exists.
     */
    public Optional<Role> getRoleByName(final String name) {
        final Optional<RoleRecord> record = roleDao.getRoleByName(name);

        if (record.isPresent()) {
            return Optional.of(new Role().setId(record.get().getId()).setName(record.get().getName())
                    .setCreatedBy(record.get().getCreatedBy()).setLastUpdatedBy(record.get().getLastUpdatedBy())
                    .setCreatedTs(record.get().getCreatedTs()).setLastUpdatedTs(record.get().getLastUpdatedTs()));
        }

        return Optional.empty();
    }
}