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/*
 * Copyright 2017 Huawei Technologies Co., Ltd
 *
 * 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.servicecomb.demo.jaxrs.server;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.DELETE;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.servicecomb.common.rest.codec.RestObjectMapper;
import io.servicecomb.demo.compute.Person;
import io.servicecomb.provider.rest.common.RestSchema;
import io.servicecomb.swagger.invocation.context.ContextUtils;

@RestSchema(schemaId = "compute")
@Path("/compute")
@Produces(MediaType.APPLICATION_JSON)
public class ComputeImpl {
    private static final Logger LOGGER = LoggerFactory.getLogger(ComputeImpl.class);

    @Path("/add")
    @POST
    public int add(@FormParam("a") int a, @FormParam("b") int b) {
        return a + b;
    }

    @Path("/reduce")
    @GET
    public int reduce(@Context HttpServletRequest request) {
        int a = Integer.parseInt(request.getParameter("a"));
        int b = Integer.parseInt(request.getParameter("b"));
        return a - b;
    }

    @Path("/sayhello")
    @POST
    public Person sayHello(Person user) {
        user.setName("hello " + user.getName());
        return user;
    }

    @SuppressWarnings("unchecked")
    @Path("/testrawjson")
    @POST
    public String testRawJsonString(String jsonInput) {
        Map person;
        try {
            person = RestObjectMapper.INSTANCE.readValue(jsonInput.getBytes(), Map.class);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return "hello " + person.get("name");
    }

    @Path("/saysomething")
    @POST
    public String saySomething(@HeaderParam("prefix") String prefix, Person user) {
        return prefix + " " + user.getName();
    }

    @Path("/sayhi/{name}")
    @PUT
    public void sayHi(@PathParam("name") String name) {
        LOGGER.info(name + " sayhi");
        ContextUtils.getInvocationContext().setStatus(202);
    }

    @Path("/sayhi/{name}/v2")
    @PUT
    public void sayHi2(@PathParam("name") String name) {
        LOGGER.info(name + " sayhi 2");
    }

    @Path("/sayhei")
    @DELETE
    public void sayHei(@QueryParam("name") String name) {
        LOGGER.info(name + " sayhei");
    }

    @Path("/istrue")
    @GET
    public boolean isTrue() {
        return true;
    }

    @Path("/addstring")
    @DELETE
    @Produces(MediaType.TEXT_PLAIN)
    public String addString(@QueryParam("s") String[] s) {
        String result = "";
        for (String x : s) {
            result += x;
        }
        return result;
    }

}