TodoListController.java

TodoListController.java

package com.codingfullstack.springboot.redis.rest;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Optional;

import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.cache.annotation.Caching;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import com.codingfullstack.springboot.redis.model.ToDo;
import com.codingfullstack.springboot.redis.model.ToDoList;

@RestController("/")
public class TodoListController {

	private ToDoList sample = new ToDoList(1, new ArrayList<ToDo>(Arrays.asList(new ToDo(1, "Comment", false), 
			new ToDo(2, "Clap", false),
			new ToDo(3, "Follow Author", false))), false);

	@Cacheable(value = "todo-list" , key="'getList'")
	@GetMapping
	public ToDoList getList() {
		return sample;
	}

	@Cacheable(value = "todo-single", key = "#id")
	@GetMapping("/todo/{id}")
	public Optional<ToDo> getToDo(@PathVariable("id") long id) {
		return sample.getTasks().stream().filter(x -> x.getId() == id).findFirst();
	}

	@PutMapping("/todo")
	@CachePut(value = "todo-single", key = "#toDo.id")
	@CacheEvict(value="todo-list" , key="'getList'")
	public ToDoList addToDo(@RequestBody ToDo toDo) {
		sample.getTasks().add(toDo);
		return sample;
	}

	@PostMapping("/todo/{id}")
	@CachePut(value = "todo-single", key = "#id")
	@CacheEvict(value="todo-list", key="'getList'")
	public ToDo updateToDo(@PathVariable("id") long id, @RequestBody ToDo toDo) throws Exception {
		Optional<ToDo> item = sample.getTasks().stream().filter(x -> x.getId() == id).findFirst();
		if (item.isPresent()) {
			item.get().setCompleted(toDo.isCompleted());
			return item.get();
		} else {
			throw new Exception("To Do item not found");
		}
	}
	
	@DeleteMapping("/todo/{id}")
	@Caching(evict = {
		@CacheEvict(value = "todo-single", key = "#id"),
		@CacheEvict(value="todo-list", key="'getList'")
	})
	public void deleteToDo(@PathVariable("id") long id) throws Exception {
		Optional<ToDo> item = sample.getTasks().stream().filter(x -> x.getId() == id).findFirst();
		if (item.isPresent()) {
			sample.getTasks().remove(item.get());
		} else {
			throw new Exception("To Do item not found");
		}
	}
}