io.katharsis.servlet.resource.repository.ProjectRepository.java Source code

Introduction

Here is the source code for io.katharsis.servlet.resource.repository.ProjectRepository.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.katharsis.servlet.resource.repository;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicLong;
import java.util.stream.Collectors;

import com.google.common.collect.Iterables;

import io.katharsis.queryParams.QueryParams;
import io.katharsis.repository.annotations.JsonApiDelete;
import io.katharsis.repository.annotations.JsonApiFindAll;
import io.katharsis.repository.annotations.JsonApiFindAllWithIds;
import io.katharsis.repository.annotations.JsonApiFindOne;
import io.katharsis.repository.annotations.JsonApiResourceRepository;
import io.katharsis.repository.annotations.JsonApiSave;
import io.katharsis.resource.exception.ResourceNotFoundException;
import io.katharsis.servlet.resource.model.Project;

@JsonApiResourceRepository(Project.class)
public class ProjectRepository {
    public ProjectRepository() {
        init();
    }

    private void init() {
        for (int i = 0; i < 10; i++) {
            Project project = new Project();
            project.setId((long) i);
            project.setName("Project " + i);
            REPOSITORY.put((long) i, project);
        }
    }

    private static final Map<Long, Project> REPOSITORY = new ConcurrentHashMap<>();
    private static final AtomicLong ID_GENERATOR = new AtomicLong(1);

    @JsonApiSave
    public <S extends Project> S save(S entity) {
        if (entity.getId() == null) {
            entity.setId(ID_GENERATOR.getAndIncrement());
        }
        REPOSITORY.put(entity.getId(), entity);
        return entity;
    }

    @JsonApiFindOne
    public Project findOne(Long id) {
        Project project = REPOSITORY.get(id);
        if (project == null) {
            throw new ResourceNotFoundException("Project not found");
        }
        return project;
    }

    @JsonApiFindAll
    public Iterable<Project> findAll(QueryParams queryParams) {
        return REPOSITORY.values();
    }

    @JsonApiFindAllWithIds
    public Iterable<Project> findAll(Iterable<Long> iterable, QueryParams queryParams) {
        return REPOSITORY.entrySet().stream().filter(p -> Iterables.contains(iterable, p.getKey()))
                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)).values();
    }

    @JsonApiDelete
    public void delete(Long id) {
        REPOSITORY.remove(id);
    }
}