saga-demo/conditional-transaction-demo/supplier/src/main/java/io/servicecomb/saga/demo/conditional/transaction/supplier/SupplierController.java

/*
 * 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.saga.demo.conditional.transaction.supplier;

import static java.util.Collections.singleton;
import static org.springframework.http.HttpStatus.FORBIDDEN;
import static org.springframework.http.MediaType.APPLICATION_FORM_URLENCODED_VALUE;
import static org.springframework.http.MediaType.TEXT_PLAIN_VALUE;
import static org.springframework.web.bind.annotation.RequestMethod.POST;

import java.util.Set;
import java.util.UUID;

import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
@RequestMapping("/")
public class SupplierController {

  private final Set<String> customers = singleton("servicecomb_mall");

  @RequestMapping(value = "supplier", method = POST, consumes = APPLICATION_FORM_URLENCODED_VALUE, produces = TEXT_PLAIN_VALUE)
  public ResponseEntity<String> supply(@RequestParam String customerId) {
    if (!customers.contains(customerId)) {
      return new ResponseEntity<>("No such customer with id " + customerId, FORBIDDEN);
    }

    return ResponseEntity.ok(String.format("{\n"
            + "  \"body\": \"Goods supply with id %s on the way for customer %s\"\n"
            + "}",
        UUID.randomUUID().toString(),
        customerId));
  }
}