service/src/main/java/io/mifos/identity/internal/service/UserService.java

/*
 * Copyright 2017 The Mifos Initiative.
 *
 * 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.mifos.identity.internal.service;

import io.mifos.anubis.api.v1.domain.AllowedOperation;
import io.mifos.identity.api.v1.PermittableGroupIds;
import io.mifos.identity.api.v1.domain.Permission;
import io.mifos.identity.api.v1.domain.User;
import io.mifos.identity.internal.repository.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;
import java.util.stream.Collectors;

/**
 * @author Myrle Krantz
 */
@Service
public class UserService {

  private final Users users;
  private final Roles roles;

  @Autowired
  UserService(final Users users, final Roles roles)
  {
    this.users = users;
    this.roles = roles;
  }

  public List<User> findAll() {
    return users.getAll().stream().map(UserService::mapUser).collect(Collectors.toList());
  }

  public Optional<User> findByIdentifier(final String identifier)
  {
    return users.get(identifier).map(UserService::mapUser);
  }

  static private User mapUser(final UserEntity u) {
    return new User(u.getIdentifier(), u.getRole());
  }

  public Set<Permission> getPermissions(final String userIdentifier) {
    final Optional<UserEntity> userEntity = users.get(userIdentifier);
    final Optional<RoleEntity> roleEntity = userEntity.map(UserEntity::getRole).map(roles::get).orElse(Optional.empty());
    final List<PermissionType> permissionEntities = roleEntity.map(RoleEntity::getPermissions).orElse(Collections.emptyList());
    final List<Permission> permissions = RoleMapper.mapPermissions(permissionEntities);
    permissions.add(new Permission(PermittableGroupIds.SELF_MANAGEMENT, AllowedOperation.ALL));

    return new HashSet<>(permissions);
  }
}